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    <oef:RiskReturnHeading
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      id="ixv-272083"> U.S. Large Cap Equity Portfolio</oef:RiskReturnHeading>
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Investment Objective</oef:ObjectiveHeading>
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investment objective of the U.S. Large Cap Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
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Portfolio</oef:ExpenseHeading>
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you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
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and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
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Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
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      decimals="INF"
      id="ixv-272088"
      unitRef="pure">0.0010</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272089"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272090"
      unitRef="pure">0.0013</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272091">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-2788">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272092"
      unitRef="usd">13</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272093"
      unitRef="usd">13</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272094"
      unitRef="usd">42</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272095"
      unitRef="usd">42</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272096"
      unitRef="usd">73</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272097"
      unitRef="usd">73</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272098"
      unitRef="usd">73</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272099"
      unitRef="usd">166</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272100"
      unitRef="usd">166</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272101"
      unitRef="usd">166</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272102">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-2815">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272103"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272104"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-2825">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Large Cap Equity Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity Portfolio is designed to purchase 
a broad and diverse group of readily marketable equity securities of U.S. companies that the Advisor 
determines to be large capitalization companies within the U.S. Universe. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. The &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Advisor 
generally defines the U.S. Universe as a market capitalization weighted set (e.g., the larger the company, 
the greater the proportion of the U.S. Universe it represents) of U.S. operating companies listed on 
a securities exchange in the United States that is deemed appropriate by the Advisor. As of the date 
of this Prospectus, for purposes of the Portfolio, the Advisor considers large cap companies to be companies 
whose market capitalizations are generally in the highest 90% of total market capitalization within the 
U.S. Universe or companies whose market capitalizations are larger than or equal to the 1,000th largest 
U.S. company within the U.S. Universe, whichever results in the higher market capitalization break. Total 
market capitalization is based on the market capitalization of eligible operating companies within the 
U.S. Universe. Under the Advisor&#x2019;s market capitalization guidelines described above, based on market 
capitalization data as of December 31, 2025, the market capitalization of a large cap company would be 
$16,768 million or above. This threshold will change due to market conditions. As a non-fundamental policy, 
under normal circumstances, the Portfolio will invest at least 80% of its net assets in equity securities 
of large cap U.S. companies. The Advisor generally defines a U.S. company as one that is listed and principally 
traded on a securities exchange in the United States that is deemed appropriate by the Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may overweight certain securities, including smaller companies, lower relative price stocks, 
and/or higher profitability stocks within the large cap segment of the U.S. Universe. An equity issuer 
is considered to have a low relative price (i.e., a value stock) primarily because it has a low price 
in relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time. The Advisor may also increase or reduce the U.S. Large Cap Equity Portfolio&#x2019;s exposure 
to an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity Portfolio may 
lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_PrincipalRisks2_S000041113Summary2Member"
      id="ixv-2841">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_RiskLoseMoneyMember_S000041113Summary2Member"
      id="ixv-272105">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_RiskNotInsuredMember_S000041113Summary2Member"
      id="ixv-272106">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_EquityMarketRisk2_S000041113Summary2Member"
      id="ixv-2847">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_ProfitabilityInvestmentRisk2_S000041113Summary2Member"
      id="ixv-2852">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_ValueInvestmentRisk2_S000041113Summary2Member"
      id="ixv-2856">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_DerivativesRisk2_S000041113Summary2Member"
      id="ixv-2861">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
&lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_SecuritiesLendingRisk2_S000041113Summary2Member"
      id="ixv-2870">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_OperationalRisk2_S000041113Summary2Member"
      id="ixv-2874">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_CyberSecurityRisk2_S000041113Summary2Member"
      id="ixv-2879">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272107"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-2889">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272108">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272109"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272110">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272111">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272112">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272113">U.S. 
Large Cap Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272114">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272115">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272116"
      unitRef="pure">0.2160</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272117">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272118"
      unitRef="pure">-0.2151</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272119">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272120">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272121">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272122"
      unitRef="pure">0.1677</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272123"
      unitRef="pure">0.1362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272124"
      unitRef="pure">0.1435</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272125">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272126"
      unitRef="pure">0.1647</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272127"
      unitRef="pure">0.1277</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272128"
      unitRef="pure">0.1368</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      id="ixv-272129">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272130"
      unitRef="pure">0.1010</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272131"
      unitRef="pure">0.1070</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272132"
      unitRef="pure">0.1189</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index33_S000041113Member_S000041113Summary2Member"
      id="ixv-272133">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary2Member"
      id="ixv-272134">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index34_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272135"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index34_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272136"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index34_S000041113Member_S000041113Summary2Member"
      decimals="INF"
      id="ixv-272137"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272138"> U.S. Small Cap Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272139"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3202">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Small Cap Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272140"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3209">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272141">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272142">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272143"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272144"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272145"
      unitRef="pure">0.0031</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272146">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3268">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272147"
      unitRef="usd">32</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272148"
      unitRef="usd">32</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272149"
      unitRef="usd">100</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272150"
      unitRef="usd">100</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272151"
      unitRef="usd">174</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272152"
      unitRef="usd">174</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272153"
      unitRef="usd">174</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272154"
      unitRef="usd">393</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272155"
      unitRef="usd">393</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272156"
      unitRef="usd">393</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272157">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3295">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272158"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272159"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3305">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Small Cap Value Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value Portfolio, using a market capitalization 
weighted approach, is designed to purchase a broad and diverse group of the readily marketable securities 
of U.S. small cap companies that the Advisor determines to be lower relative price stocks. A company&#x2019;s 
market capitalization is the number of its shares &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of the Portfolio than companies with relatively 
lower market capitalizations.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value Portfolio may 
emphasize certain stocks, including smaller capitalization companies, lower relative price stocks, and/or 
higher profitability stocks as compared to their representation in the small-cap value segment of the 
U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily 
because it has a low price in relation to its book value. In assessing relative price, the Advisor may 
consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer 
is considered to have high profitability because it has high earnings or profits from operations in relation 
to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability 
are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the U.S. Small Cap Value Portfolio will invest at least 80% of its net assets 
in securities of small cap U.S. companies. The Advisor generally defines a U.S. company as one that is 
listed and principally traded on a securities exchange in the United States that is deemed appropriate 
by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, the Advisor considers 
small cap companies to be companies whose market capitalizations are generally in the lowest 10% of total 
market capitalization or companies whose market capitalizations are smaller than the 1,000th largest 
U.S. company, whichever results in the higher market capitalization break. Total market capitalization 
is based on the market capitalization of eligible U.S. operating companies listed on a securities exchange 
in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization 
guidelines described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a small cap company would be below $16,768 million. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Small Cap Value Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value Portfolio may 
lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_PrincipalRisks2_S000000987Summary3Member"
      id="ixv-3325">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_RiskLoseMoneyMember_S000000987Summary3Member"
      id="ixv-272160">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_RiskNotInsuredMember_S000000987Summary3Member"
      id="ixv-272161">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_EquityMarketRisk2_S000000987Summary3Member"
      id="ixv-3331">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_SmallCompanyRisk2_S000000987Summary3Member"
      id="ixv-3336">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies 
are often less liquid than those of large companies and this could make it difficult to sell a small 
company security at a desired time or price. As a result, small company stocks may fluctuate relatively 
more in price. In general, smaller capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_ValueInvestmentRisk2_S000000987Summary3Member"
      id="ixv-3340">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_ProfitabilityInvestmentRisk2_S000000987Summary3Member"
      id="ixv-3350">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_DerivativesRisk2_S000000987Summary3Member"
      id="ixv-3354">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_SecuritiesLendingRisk2_S000000987Summary3Member"
      id="ixv-3358">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_OperationalRisk2_S000000987Summary3Member"
      id="ixv-3362">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_CyberSecurityRisk2_S000000987Summary3Member"
      id="ixv-3367">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272162"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-3377">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272163">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272164"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272165">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272166">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272167">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272168">U.S. 
Small Cap Value Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272169">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272170">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272171"
      unitRef="pure">0.3266</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272172">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272173"
      unitRef="pure">-0.3902</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272174">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272175">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272176">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272177"
      unitRef="pure">0.0838</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272178"
      unitRef="pure">0.1376</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272179"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272180">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272181"
      unitRef="pure">0.0792</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272182"
      unitRef="pure">0.1249</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272183"
      unitRef="pure">0.0919</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      id="ixv-272184">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272185"
      unitRef="pure">0.0525</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272186"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272187"
      unitRef="pure">0.0821</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex35_S000000987Member_S000000987Summary3Member"
      id="ixv-272188">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary3Member"
      id="ixv-272189">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex36_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272190"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex36_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272191"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000ValueIndex36_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272192"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index37_S000000987Member_S000000987Summary3Member"
      id="ixv-272193">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index38_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272194"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index38_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272195"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index38_S000000987Member_S000000987Summary3Member"
      decimals="INF"
      id="ixv-272196"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272197"> U.S. Targeted Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272198"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3728">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Targeted Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272199"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3735">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272200">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272201">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272202"
      unitRef="pure">0.0027</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272203"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272204"
      unitRef="pure">0.0030</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="_192_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272206"
      unitRef="pure">0.0029</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272207">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3818">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272208"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272209"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272210"
      unitRef="usd">95</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272211"
      unitRef="usd">95</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272212"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272213"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272214"
      unitRef="usd">168</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272215"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272216"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272217"
      unitRef="usd">380</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272218">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3845">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272219"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272220"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3858">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve 
the U.S. Targeted Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term 
drivers of expected returns identified by the Advisor&#x2019;s research, while balancing risk through 
broad diversification across companies and sectors. The Advisor&#x2019;s portfolio management and trading 
processes further balance those long-term drivers of expected returns with shorter-term drivers of expected 
returns and trading costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value Portfolio, using 
a market capitalization weighted approach, is designed to purchase a broad and diverse group of the readily 
marketable securities of U.S. small and mid-cap companies that the Advisor determines to be lower relative 
price stocks with higher profitability. A company&#x2019;s market capitalization is the number of its 
shares outstanding times its price per share. Under a market capitalization weighted approach, companies 
with higher market capitalizations generally represent a larger proportion of the Portfolio than companies 
with relatively lower market capitalizations. The Portfolio may emphasize certain stocks, including smaller 
capitalization companies, lower relative price stocks, and/or higher profitability stocks as compared 
to their representation in the small-and mid-cap value segment of the U.S. market. An equity issuer is 
considered to have a low relative price (i.e., a value stock) primarily because it has a low price in 
relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
U.S. Targeted Value Portfolio will invest at least 80% of its net assets in securities of U.S. companies. 
The Advisor generally defines a U.S. company as one that is listed and principally traded on a securities 
exchange in the United States that is deemed appropriate by the Advisor. As of the date of this Prospectus, 
the Advisor considers for investment companies whose market capitalizations are generally smaller than 
the 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; largest U.S. company. Total market 
capitalization is based on the market capitalization of eligible U.S. operating companies listed on a 
securities exchange in the United States that is deemed appropriate by the Advisor. Based on market capitalization 
data as of December 31, 2025, the market capitalization of a company smaller than the 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
largest U.S. company would be below $15,092 million. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Targeted Value Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value Portfolio may 
lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_PrincipalRisks2_S000000970Summary4Member"
      id="ixv-3876">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_RiskLoseMoneyMember_S000000970Summary4Member"
      id="ixv-272221">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_RiskNotInsuredMember_S000000970Summary4Member"
      id="ixv-272222">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_EquityMarketRisk2_S000000970Summary4Member"
      id="ixv-3882">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_SmallandMid-CapCompanyRisk2_S000000970Summary4Member"
      id="ixv-3892">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small 
and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_ValueInvestmentRisk2_S000000970Summary4Member"
      id="ixv-3897">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_ProfitabilityInvestmentRisk2_S000000970Summary4Member"
      id="ixv-3902">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_DerivativesRisk2_S000000970Summary4Member"
      id="ixv-3906">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_SecuritiesLendingRisk2_S000000970Summary4Member"
      id="ixv-3910">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_OperationalRisk2_S000000970Summary4Member"
      id="ixv-3914">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_CyberSecurityRisk2_S000000970Summary4Member"
      id="ixv-3919">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272223"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-3929">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;depend on an investor&#x2019;s tax situation and may differ from those shown in 
the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272224">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272225"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272226">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272227">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272228">In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272229">U.S. 
Targeted Value Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272230">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272231">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272232"
      unitRef="pure">0.3277</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272233">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272234"
      unitRef="pure">-0.3919</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272235">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272236">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272237">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272238"
      unitRef="pure">0.0955</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272239"
      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272240"
      unitRef="pure">0.1081</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272241">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272242"
      unitRef="pure">0.0908</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272243"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272244"
      unitRef="pure">0.0975</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      id="ixv-272245">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272246"
      unitRef="pure">0.0594</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272247"
      unitRef="pure">0.1070</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272248"
      unitRef="pure">0.0860</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex39_S000000970Member_S000000970Summary4Member"
      id="ixv-272249">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary4Member"
      id="ixv-272250">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex310_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272251"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex310_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272252"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000ValueIndex310_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272253"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index311_S000000970Member_S000000970Summary4Member"
      id="ixv-272254">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index312_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272255"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index312_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272256"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index312_S000000970Member_S000000970Summary4Member"
      decimals="INF"
      id="ixv-272257"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272258"> U.S. Core Equity 1 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272259"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4281">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Core Equity 1 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272260"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4288">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272261">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272262">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272263"
      unitRef="pure">0.0012</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272264"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272265"
      unitRef="pure">0.0015</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272266">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4347">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272267"
      unitRef="usd">15</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272268"
      unitRef="usd">15</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272269"
      unitRef="usd">48</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272270"
      unitRef="usd">48</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272271"
      unitRef="usd">85</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272272"
      unitRef="usd">85</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272273"
      unitRef="usd">85</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272274"
      unitRef="usd">192</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272275"
      unitRef="usd">192</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272276"
      unitRef="usd">192</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272277">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4374">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;2%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272278"
      unitRef="pure">0.02</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272279"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4384">&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Core Equity 1 Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 1 Portfolio is designed to purchase a broad and diverse group of equity securities within 
a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of 
the universe it represents) of U.S. companies (the &#x201c;U.S. Universe&#x201d;). The Portfolio invests 
in companies of all sizes, with moderately &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;increased 
exposure to smaller capitalization, lower relative price, and higher profitability companies as compared 
to their representation in the U.S. Universe. The Portfolio&#x2019;s moderately increased exposure to 
smaller capitalization, lower relative price, and higher profitability companies may be achieved by decreasing 
the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower 
profitability companies relative to their weight in the U.S. Universe. An equity issuer is considered 
to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation 
to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, U.S. Core Equity 1 Portfolio will invest at least 80% of its net assets in 
equity securities of U.S. companies. The Advisor generally defines a U.S. company as one that is listed 
and principally traded on a securities exchange in the United States that is deemed appropriate by the 
Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Core Equity 
1 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in 
assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 1 Portfolio also may purchase or sell futures contracts and options on futures contracts 
for U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 1 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_PrincipalRisks2_S000000979Summary5Member"
      id="ixv-4402">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_RiskLoseMoneyMember_S000000979Summary5Member"
      id="ixv-272280">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_RiskNotInsuredMember_S000000979Summary5Member"
      id="ixv-272281">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_EquityMarketRisk2_S000000979Summary5Member"
      id="ixv-4408">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_SmallandMid-CapCompanyRisk2_S000000979Summary5Member"
      id="ixv-4413">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_ProfitabilityInvestmentRisk2_S000000979Summary5Member"
      id="ixv-4418">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_ValueInvestmentRisk2_S000000979Summary5Member"
      id="ixv-4422">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_DerivativesRisk2_S000000979Summary5Member"
      id="ixv-4431">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as futures contracts, and options thereon, whose value is derived from that of 
other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to 
carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_SecuritiesLendingRisk2_S000000979Summary5Member"
      id="ixv-4435">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_OperationalRisk2_S000000979Summary5Member"
      id="ixv-4439">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_CyberSecurityRisk2_S000000979Summary5Member"
      id="ixv-4444">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272282"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-4454">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272283">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272284"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272285">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272286">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272287">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272288">U.S. 
Core Equity 1 Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272289">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272290">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272291"
      unitRef="pure">0.2216</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272292">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272293"
      unitRef="pure">-0.2435</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272294">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272295">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272296">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272297"
      unitRef="pure">0.1600</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272298"
      unitRef="pure">0.1341</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272299"
      unitRef="pure">0.1379</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272300">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272301"
      unitRef="pure">0.1569</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272302"
      unitRef="pure">0.1279</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272303"
      unitRef="pure">0.1316</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      id="ixv-272304">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272305"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272306"
      unitRef="pure">0.1060</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272307"
      unitRef="pure">0.1138</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index313_S000000979Member_S000000979Summary5Member"
      id="ixv-272308">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary5Member"
      id="ixv-272309">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index314_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272310"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index314_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272311"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index314_S000000979Member_S000000979Summary5Member"
      decimals="INF"
      id="ixv-272312"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272313"> U.S. Core Equity 2 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272314"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4765">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Core Equity 2 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272315"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4772">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272316">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272317">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272318"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272319"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272320"
      unitRef="pure">0.0019</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="_367_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272322"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272323">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4855">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272324"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272325"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272326"
      unitRef="usd">60</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272327"
      unitRef="usd">60</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272328"
      unitRef="usd">106</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272329"
      unitRef="usd">106</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272330"
      unitRef="usd">106</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272331"
      unitRef="usd">242</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272332"
      unitRef="usd">242</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272333"
      unitRef="usd">242</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272334">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4882">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272335"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272336"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4895">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve 
the U.S. Core Equity 2 Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term 
drivers of expected returns identified by the Advisor&#x2019;s research, while balancing risk through 
broad diversification across companies and sectors. The Advisor&#x2019;s portfolio management and trading 
processes further balance those long-term drivers of expected returns with shorter-term drivers of expected 
returns and trading costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 2 Portfolio is designed 
to purchase a broad and diverse group of equity securities within a market capitalization weighted universe 
(e.g., the larger the company, the greater the proportion of the universe it represents) of U.S. companies 
(the &#x201c;U.S. Universe&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully 
increased exposure to smaller capitalization, lower relative price and higher profitability companies 
as compared to their representation in the U.S. Universe. The Portfolio&#x2019;s meaningfully increased 
exposure to smaller capitalization, lower relative price and higher profitability companies may be achieved 
by decreasing the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative 
price, or lower profitability companies relative to their weight in the U.S. Universe. An equity issuer 
is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price 
in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value 
stock) primarily because it has a low price in relation to its book value. In assessing relative price, 
the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An 
equity issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, U.S. Core Equity 2 Portfolio will invest at least 80% of its net assets in 
equity securities of U.S. companies. The Advisor generally defines a U.S. company as one that is listed 
and principally traded on a securities exchange in the United States that is deemed appropriate by the 
Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Core Equity 
2 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in 
assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 2 Portfolio also may purchase or sell futures contracts and options on futures contracts 
for U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 2 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_PrincipalRisks2_S000000980Summary6Member"
      id="ixv-4907">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_RiskLoseMoneyMember_S000000980Summary6Member"
      id="ixv-272337">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_RiskNotInsuredMember_S000000980Summary6Member"
      id="ixv-272338">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_EquityMarketRisk2_S000000980Summary6Member"
      id="ixv-4913">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_SmallandMid-CapCompanyRisk2_S000000980Summary6Member"
      id="ixv-4918">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mid-capitalization companies are also more vulnerable than larger companies to 
adverse business or economic developments and they may have more limited resources.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_ProfitabilityInvestmentRisk2_S000000980Summary6Member"
      id="ixv-4928">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_ValueInvestmentRisk2_S000000980Summary6Member"
      id="ixv-4932">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_DerivativesRisk2_S000000980Summary6Member"
      id="ixv-4937">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_SecuritiesLendingRisk2_S000000980Summary6Member"
      id="ixv-4941">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_OperationalRisk2_S000000980Summary6Member"
      id="ixv-4945">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_CyberSecurityRisk2_S000000980Summary6Member"
      id="ixv-4950">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272339"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-4960">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272340">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272341"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272342">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272343">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272344">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272345">U.S. 
Core Equity 2 Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272346">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272347">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272348"
      unitRef="pure">0.2239</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272349">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272350"
      unitRef="pure">-0.2555</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272351">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272352">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272353">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272354"
      unitRef="pure">0.1599</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272355"
      unitRef="pure">0.1338</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272356"
      unitRef="pure">0.1339</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272357">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272358"
      unitRef="pure">0.1567</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272359"
      unitRef="pure">0.1267</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272360"
      unitRef="pure">0.1269</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      id="ixv-272361">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272362"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272363"
      unitRef="pure">0.1055</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272364"
      unitRef="pure">0.1100</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index315_S000000980Member_S000000980Summary6Member"
      id="ixv-272365">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary6Member"
      id="ixv-272366">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index316_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272367"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index316_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272368"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index316_S000000980Member_S000000980Summary6Member"
      decimals="INF"
      id="ixv-272369"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272370"> U.S. Vector Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272371"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Vector Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272372"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5278">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272373">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272374">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="_450_"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="_451_"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="_452_"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272378">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5350">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This Example is meant to 
help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The 
Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example 
also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272379"
      unitRef="usd">25</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272380"
      unitRef="usd">25</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272381"
      unitRef="usd">77</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272382"
      unitRef="usd">77</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272383"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272384"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272385"
      unitRef="usd">135</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272386"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272387"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272388"
      unitRef="usd">306</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272389">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5377">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;9%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272390"
      unitRef="pure">0.09</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272391"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5387">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Vector Equity Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Vector Equity Portfolio is designed to purchase a broad and diverse group 
of equity securities within a market capitalization weighted universe (e.g., the larger the company, 
the greater the proportion of the universe it represents) of U.S. operating companies (the &#x201c;U.S. 
Universe&#x201d;). The Portfolio invests in companies of all sizes, with strongly increased exposure to 
smaller capitalization, lower relative price and higher profitability companies as compared to their 
representation in the U.S. Universe. The Portfolio&#x2019;s strongly increased exposure to smaller capitalization, 
lower relative price and higher profitability companies may be achieved by decreasing the allocation 
of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower profitability 
companies relative to their weight in the U.S. Universe or by avoiding purchases in that segment of the 
market. An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily 
because it has a high price in relation to its book value. An equity issuer is considered to have a low 
relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Vector Equity Portfolio will invest at 
least 80% of its net assets in equity securities of U.S. companies. The Advisor generally defines a U.S. 
company as one that is listed and principally traded on a securities exchange in the United States that 
is deemed appropriate by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce 
the U.S. Vector Equity Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based 
on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment 
characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios 
such as recent changes in assets divided by total assets. The criteria the Advisor uses for assessing 
a company&#x2019;s investment characteristics are subject to change from time to time. In addition, the 
Advisor seeks to reduce trading costs using a flexible trading approach that looks for opportunities 
to participate in the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Vector Equity Portfolio also may purchase or sell futures contracts and options on futures contracts 
for U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Vector Equity 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_PrincipalRisks2_S000000982Summary7Member"
      id="ixv-5398">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_RiskLoseMoneyMember_S000000982Summary7Member"
      id="ixv-272392">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_RiskNotInsuredMember_S000000982Summary7Member"
      id="ixv-272393">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_EquityMarketRisk2_S000000982Summary7Member"
      id="ixv-5404">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_SmallandMid-CapCompanyRisk2_S000000982Summary7Member"
      id="ixv-5409">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_ProfitabilityInvestmentRisk2_S000000982Summary7Member"
      id="ixv-5414">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_ValueInvestmentRisk2_S000000982Summary7Member"
      id="ixv-5421">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies. 
Value stocks can react differently to political, economic, and industry developments than the market 
as a whole and other types of stocks. Value stocks also may underperform the market for long periods 
of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_DerivativesRisk2_S000000982Summary7Member"
      id="ixv-5426">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as futures contracts, and options thereon, whose value is derived from 
that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_SecuritiesLendingRisk2_S000000982Summary7Member"
      id="ixv-5430">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_OperationalRisk2_S000000982Summary7Member"
      id="ixv-5434">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_CyberSecurityRisk2_S000000982Summary7Member"
      id="ixv-5439">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272394"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-5449">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272395">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272396"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272397">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272398">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272399">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272400">U.S. 
Vector Equity Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272401">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272402">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272403"
      unitRef="pure">0.2423</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272404">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272405"
      unitRef="pure">-0.3199</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272406">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272407">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272408">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272409"
      unitRef="pure">0.1404</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272410"
      unitRef="pure">0.1233</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272411"
      unitRef="pure">0.1130</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272412">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272413"
      unitRef="pure">0.1369</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272414"
      unitRef="pure">0.1136</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272415"
      unitRef="pure">0.1037</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      id="ixv-272416">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272417"
      unitRef="pure">0.0852</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272418"
      unitRef="pure">0.0964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272419"
      unitRef="pure">0.0908</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index317_S000000982Member_S000000982Summary7Member"
      id="ixv-272420">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary7Member"
      id="ixv-272421">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index318_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272422"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index318_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272423"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index318_S000000982Member_S000000982Summary7Member"
      decimals="INF"
      id="ixv-272424"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272425"> U.S. Small Cap Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272426"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5760">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Small Cap Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272427"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5767">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272428">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272429">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272430"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272431"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272432"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="_537_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272434"
      unitRef="pure">0.0027</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272435">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5850">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272436"
      unitRef="usd">28</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272437"
      unitRef="usd">28</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272438"
      unitRef="usd">89</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272439"
      unitRef="usd">89</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272440"
      unitRef="usd">156</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272441"
      unitRef="usd">156</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272442"
      unitRef="usd">156</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272443"
      unitRef="usd">355</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272444"
      unitRef="usd">355</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272445"
      unitRef="usd">355</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272446">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5877">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272447"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272448"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5890">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the U.S. Small Cap Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the 
&#x201d;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Portfolio, 
using a market capitalization weighted approach, is designed to purchase a broad and diverse group of 
readily marketable securities of U.S. small cap companies. A company&#x2019;s market capitalization is 
the number of its shares outstanding times its price per share. Under a market capitalization weighted 
approach, companies with higher market capitalizations generally represent a larger proportion of the 
Portfolio than companies with relatively lower market capitalizations. The Portfolio may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small-cap segment of the U.S. market. An equity issuer 
is considered to have a low relative price (i.e., a value stock) primarily because it has a low price 
in relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
U.S. Small Cap Portfolio will invest at least 80% of its net assets in securities of small cap U.S. companies. 
The Advisor generally defines a U.S. company as one that is listed and principally traded on a securities 
exchange in the United States that is deemed appropriate by the Advisor. As of the date of this Prospectus, 
for purposes of the Portfolio, the Advisor considers small cap companies to be companies whose market 
capitalizations are generally in the lowest 10% of total market capitalization or companies whose market 
capitalizations are smaller than the 1,000th largest U.S. company, whichever results in the higher market 
capitalization break. Total market capitalization is based on the market capitalization of eligible U.S. 
operating companies listed on a securities exchange in the United States that is deemed appropriate by 
the Advisor. Under the Advisor&#x2019;s market capitalization guidelines described above, based on market 
capitalization data as of December 31, 2025, the market capitalization of a small cap company would be 
below $16,768 million. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Small Cap Portfolio&#x2019;s exposure to an eligible company, 
or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time 
to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that 
looks for opportunities to participate in the available market liquidity, while managing turnover and 
explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Portfolio may purchase or sell futures 
contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_PrincipalRisks2_S000000971Summary8Member"
      id="ixv-5897">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x75x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_RiskLoseMoneyMember_S000000971Summary8Member"
      id="ixv-272449">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_RiskNotInsuredMember_S000000971Summary8Member"
      id="ixv-272450">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_EquityMarketRisk2_S000000971Summary8Member"
      id="ixv-5903">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_SmallCompanyRisk2_S000000971Summary8Member"
      id="ixv-5913">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small 
Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than 
those of large companies and this could make it difficult to sell a small company security at a desired 
time or price. As a result, small company stocks may fluctuate relatively more in price. In general, 
smaller capitalization companies are also more vulnerable than larger companies to adverse business or 
economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_ProfitabilityInvestmentRisk2_S000000971Summary8Member"
      id="ixv-5917">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_ValueInvestmentRisk2_S000000971Summary8Member"
      id="ixv-5921">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_DerivativesRisk2_S000000971Summary8Member"
      id="ixv-5926">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_SecuritiesLendingRisk2_S000000971Summary8Member"
      id="ixv-5930">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_OperationalRisk2_S000000971Summary8Member"
      id="ixv-5934">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_CyberSecurityRisk2_S000000971Summary8Member"
      id="ixv-5939">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272451"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-5949">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272452">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272453"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272454">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272455">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272456">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272457">U.S. 
Small Cap Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272458">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272459">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272460"
      unitRef="pure">0.2870</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272461">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272462"
      unitRef="pure">-0.3273</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272463">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272464">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272465">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272466"
      unitRef="pure">0.0807</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272467"
      unitRef="pure">0.0987</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272468"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272469">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272470"
      unitRef="pure">0.0778</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272471"
      unitRef="pure">0.0903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272472"
      unitRef="pure">0.0910</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      id="ixv-272473">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272474"
      unitRef="pure">0.0496</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272475"
      unitRef="pure">0.0768</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272476"
      unitRef="pure">0.0797</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000Index319_S000000971Member_S000000971Summary8Member"
      id="ixv-272477">Russell 2000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary8Member"
      id="ixv-272478">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000Index320_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272479"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000Index320_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272480"
      unitRef="pure">0.0609</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000Index320_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272481"
      unitRef="pure">0.0962</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index321_S000000971Member_S000000971Summary8Member"
      id="ixv-272482">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index322_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272483"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index322_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272484"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index322_S000000971Member_S000000971Summary8Member"
      decimals="INF"
      id="ixv-272485"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272486"> U.S. Micro Cap Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272487"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6302">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Micro Cap Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272488"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6309">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272489">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272490">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272491"
      unitRef="pure">0.0038</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272492"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272493"
      unitRef="pure">0.0042</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="_628_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272495"
      unitRef="pure">0.0041</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272496">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6392">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272497"
      unitRef="usd">42</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272498"
      unitRef="usd">42</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272499"
      unitRef="usd">134</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272500"
      unitRef="usd">134</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272501"
      unitRef="usd">234</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272502"
      unitRef="usd">234</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272503"
      unitRef="usd">234</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272504"
      unitRef="usd">529</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272505"
      unitRef="usd">529</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272506"
      unitRef="usd">529</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272507">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6419">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272508"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272509"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6432">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the U.S. Micro Cap Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the 
&#x201d;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Micro Cap Portfolio, 
using a market capitalization weighted approach, is designed to purchase a broad and diverse group of 
the securities of U.S. micro cap companies. A company&#x2019;s market capitalization is the number of 
its shares outstanding times its price per share. Under a market capitalization weighted approach, companies 
with higher market capitalizations generally represent a larger proportion of the Portfolio than companies 
with relatively lower market capitalizations. The Portfolio may emphasize certain stocks, including smaller 
capitalization companies, lower relative price stocks, and/or higher profitability stocks as compared 
to their representation in the micro-cap segment of the U.S. market. An equity issuer is considered to 
have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its 
book value. In assessing relative price, the Advisor may consider additional factors such as price to 
cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Micro Cap Portfolio will invest at least 
80% of its net assets in securities of U.S. micro cap companies. The Advisor generally defines a U.S. 
company as one that is listed and principally traded on a securities exchange in the United States that 
is deemed appropriate by the Advisor. As of the date of this Prospectus, for the purposes of the Portfolio, 
the Advisor considers micro cap companies to be companies whose market capitalizations are generally 
in the lowest 5% of total market capitalization or companies whose market capitalizations are smaller 
than the 1,500th largest U.S. company, whichever results in the higher market capitalization break. Total 
market capitalization is based on the market capitalization of eligible U.S. operating companies listed 
on a securities exchange in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s 
market capitalization guidelines described above, based on market capitalization data as of December 
31, 2025, the market capitalization of a micro cap company would be below $6,819 million. This threshold 
will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the U.S. Micro Cap Portfolio&#x2019;s exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Micro Cap Portfolio may purchase or sell futures 
contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Micro Cap Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_PrincipalRisks2_S000000948Summary9Member"
      id="ixv-6439">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x85x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_RiskLoseMoneyMember_S000000948Summary9Member"
      id="ixv-272510">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_RiskNotInsuredMember_S000000948Summary9Member"
      id="ixv-272511">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_EquityMarketRisk2_S000000948Summary9Member"
      id="ixv-6445">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_MicroCapCompanyRisk2_S000000948Summary9Member"
      id="ixv-6455">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Micro Cap 
Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of micro cap companies are generally less liquid 
than those of large companies and this could make it difficult to sell a micro cap company security at 
a desired time or price. As a result, micro cap company stocks may fluctuate relatively more in price 
over short and/or extended periods of time. In general, smaller capitalization companies, particularly 
micro cap companies, are also more vulnerable than larger companies to adverse business or economic developments 
and they may have more limited resources. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_ProfitabilityInvestmentRisk2_S000000948Summary9Member"
      id="ixv-6459">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_ValueInvestmentRisk2_S000000948Summary9Member"
      id="ixv-6463">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_DerivativesRisk2_S000000948Summary9Member"
      id="ixv-6468">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_SecuritiesLendingRisk2_S000000948Summary9Member"
      id="ixv-6472">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_OperationalRisk2_S000000948Summary9Member"
      id="ixv-6476">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_CyberSecurityRisk2_S000000948Summary9Member"
      id="ixv-6481">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272512"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-6491">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;depend on an investor&#x2019;s tax situation and may differ from those shown in 
the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272513">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272514"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272515">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272516">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272517">In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272518">U.S. 
Micro Cap Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272519">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272520">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272521"
      unitRef="pure">0.3059</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272522">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272523"
      unitRef="pure">-0.3475</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272524">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272525">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272526">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272527"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272528"
      unitRef="pure">0.1097</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272529"
      unitRef="pure">0.1033</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272530">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272531"
      unitRef="pure">0.0937</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272532"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272533"
      unitRef="pure">0.0931</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      id="ixv-272534">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272535"
      unitRef="pure">0.0590</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272536"
      unitRef="pure">0.0854</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272537"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000Index323_S000000948Member_S000000948Summary9Member"
      id="ixv-272538">Russell 2000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary9Member"
      id="ixv-272539">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000Index324_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272540"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000Index324_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272541"
      unitRef="pure">0.0609</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000Index324_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272542"
      unitRef="pure">0.0962</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index325_S000000948Member_S000000948Summary9Member"
      id="ixv-272543">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index326_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272544"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index326_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272545"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index326_S000000948Member_S000000948Summary9Member"
      decimals="INF"
      id="ixv-272546"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272547"> U.S. High Relative Profitability 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272548"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-6843">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. High Relative Profitability Portfolio (the &#x201c;Portfolio&#x201d;) 
is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272549"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-6850">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272550">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272551">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272552"
      unitRef="pure">0.0019</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272553"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272554"
      unitRef="pure">0.0023</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="_719_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272556"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272557">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-6933">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272558"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272559"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272560"
      unitRef="usd">73</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272561"
      unitRef="usd">73</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272562"
      unitRef="usd">129</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272563"
      unitRef="usd">129</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272564"
      unitRef="usd">129</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272565"
      unitRef="usd">292</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272566"
      unitRef="usd">292</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272567"
      unitRef="usd">292</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272568">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-6960">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272569"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272570"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-6973">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the U.S. High Relative Profitability Portfolio&#x2019;s investment objective, Dimensional Fund 
Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. High Relative 
Profitability Portfolio is designed to purchase a broad and diverse group of readily marketable securities 
of large U.S. companies that the Advisor determines to have high profitability relative to other U.S. 
large cap companies at the time of purchase. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
Portfolio may emphasize certain stocks, including smaller capitalization companies, lower relative price 
stocks, and/or higher profitability stocks as compared to their representation in the large-cap high 
profitability segment of the U.S. market. The Portfolio&#x2019;s increased exposure to such stocks may 
be achieved by overweighting and/or underweighting eligible stocks based on their market capitalization, 
relative price, and/or profitability characteristics. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. The criteria the Advisor uses for assessing relative price and profitability are subject to change 
from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
U.S. High Relative Profitability Portfolio will invest at least 80% of its net assets in securities of 
U.S. companies. The Advisor generally defines a U.S. company as one that is listed and principally traded 
on a securities exchange in the United States that is deemed appropriate by the Advisor. As of the date 
of this Prospectus, for purposes of the Portfolio, the Advisor considers large cap companies to be companies 
whose market capitalizations are generally in the highest 90% of total market capitalization or companies 
whose market capitalizations are larger than or equal to the 1,000th largest U.S. company, whichever 
results in the higher market capitalization break. Total market capitalization is based on the market 
capitalization of eligible U.S. operating companies listed on a securities exchange in the United States 
that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization guidelines 
described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a large cap company would be $16,768 million or above. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. High Relative Profitability Portfolio&#x2019;s exposure to 
an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. High Relative 
Profitability Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. 
equity securities and indices to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio. The Portfolio may invest in exchange-traded funds (&#x201c;ETFs&#x201d;) 
for the purpose of gaining exposure to the U.S. stock market while maintaining liquidity.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. High Relative Profitability Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_PrincipalRisks2_S000057237Summary10Member"
      id="ixv-6980">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x95x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_RiskLoseMoneyMember_S000057237Summary10Member"
      id="ixv-272571">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_RiskNotInsuredMember_S000057237Summary10Member"
      id="ixv-272572">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_EquityMarketRisk2_S000057237Summary10Member"
      id="ixv-6986">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_ProfitabilityInvestmentRisk2_S000057237Summary10Member"
      id="ixv-6996">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_ValueInvestmentRisk2_S000057237Summary10Member"
      id="ixv-7000">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_DerivativesRisk2_S000057237Summary10Member"
      id="ixv-7005">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_SecuritiesLendingRisk2_S000057237Summary10Member"
      id="ixv-7009">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_OperationalRisk2_S000057237Summary10Member"
      id="ixv-7013">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_CyberSecurityRisk2_S000057237Summary10Member"
      id="ixv-7018">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272573"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-7028">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272574">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272575"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272576">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272577">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272578">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272579">U.S. 
High Relative Profitability Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272580">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272581">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272582"
      unitRef="pure">0.1966</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272583">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272584"
      unitRef="pure">-0.1726</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272585">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272586">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272587">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272588"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272589"
      unitRef="pure">0.1260</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="_778_"
      unitRef="pure">0.1448</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272591">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272592"
      unitRef="pure">0.1251</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272593"
      unitRef="pure">0.1203</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="_782_"
      unitRef="pure">0.1397</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      id="ixv-272595">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272596"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272597"
      unitRef="pure">0.0995</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="_786_"
      unitRef="pure">0.1195</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index327_S000057237Member_S000057237Summary10Member"
      id="ixv-272599">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary10Member"
      id="ixv-272600">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index328_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272601"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index328_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="ixv-272602"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_Russell1000Index328_S000057237Member_S000057237Summary10Member"
      decimals="INF"
      id="_791_"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272604"> DFA Real Estate Securities 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272605"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7366">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Real Estate Securities Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272606"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7373">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272607">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272608">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272609"
      unitRef="pure">0.0017</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272610"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272611"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="_802_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272613"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272614">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7456">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272615"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272616"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272617"
      unitRef="usd">65</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272618"
      unitRef="usd">65</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272619"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272620"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272621"
      unitRef="usd">115</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272622"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272623"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272624"
      unitRef="usd">265</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272625">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7483">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;6%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272626"
      unitRef="pure">0.06</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272627"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7496">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the DFA Real Estate Securities Portfolio&#x2019;s investment objective, Dimensional Fund Advisors 
LP (the &#x201d;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Real Estate Securities 
Portfolio, using a market capitalization weighted approach, purchases readily marketable equity securities 
of companies whose principal activities include ownership, management, development, construction, or 
sale of residential, commercial or industrial real estate. The Portfolio will principally invest in equity 
securities of companies in certain real estate investment trusts (&#x201c;REITs&#x201d;) and companies 
engaged in residential construction and firms, except partnerships, whose principal business is to develop 
commercial property. The Portfolio invests in companies of all sizes. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. Under a market capitalization weighted 
approach, companies with higher market capitalizations generally represent a larger proportion of the 
Portfolio than companies with relatively lower market capitalizations. The Advisor may adjust the representation 
in the Portfolio of an eligible company, or exclude a company, after considering such factors as free 
float, price momentum, short-run reversals, trading strategies, liquidity, size, relative price, profitability, 
and other factors that the Advisor determines to be appropriate. An equity issuer is considered to have 
a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book 
value. In assessing relative price, the Advisor may consider additional factors such as price to cash 
flow or price to earnings ratios. An equity issuer is considered to have high profitability because it 
has high earnings or profits from operations in relation to its book value or assets. The criteria the 
Advisor uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the DFA Real Estate Securities 
Portfolio&#x2019;s net assets will be invested in securities of companies in the real estate industry. 
The Portfolio concentrates (i.e., invests more than 25% of its net assets) its investments in securities 
of companies in the real estate industry. The Portfolio generally considers a company to be principally 
engaged in the real estate industry if the company (i) derives at least 50% of its revenue or profits 
from the ownership, management, development, construction, or sale of residential, commercial, industrial, 
or other real estate; (ii) has at least 50% of the value of its assets invested in residential, commercial, 
industrial, or other real estate; or (iii) is organized as a REIT or REIT-like entity. REITs and REIT-like 
entities are types of real estate companies that pool investors&#x2019; funds for investment primarily 
in income producing real estate or real estate related loans or interests. The Portfolio will make equity 
investments in securities listed on a securities exchange in the United States that is deemed appropriate 
by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Real Estate Securities Portfolio may purchase or sell 
futures contracts and options on futures contracts for U.S. equity securities and indices to increase 
or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA Real Estate Securities Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_PrincipalRisks2_S000000949Summary11Member"
      id="ixv-7502">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x105x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RiskLoseMoneyMember_S000000949Summary11Member"
      id="ixv-272628">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RiskNotInsuredMember_S000000949Summary11Member"
      id="ixv-272629">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_EquityMarketRisk2_S000000949Summary11Member"
      id="ixv-7508">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_SmallandMid-CapCompanyRisk2_S000000949Summary11Member"
      id="ixv-7513">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RisksofConcentratingintheRealEstateIndustry2_S000000949Summary11Member"
      id="ixv-7521">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Concentrating in the Real Estate Industry:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that concentrates (i.e., invests more than 25% of its 
net assets) its investments in securities of companies in the real estate industry will be exposed to 
the general risks of direct real estate ownership. The value of securities in the real estate industry 
can be affected by changes in real estate values and rental income, property taxes, and tax and regulatory 
requirements. Also, the value of securities in the real estate industry may decline with changes in interest 
rates. Investing in REITs and REIT-like entities involves certain unique risks in addition to those risks 
associated with investing in the real estate industry in general. REITs and REIT-like entities are dependent 
upon management skill, may not be diversified, and are subject to heavy cash flow dependency and self-liquidation. 
REITs and REIT-like entities also are subject to the possibility of failing to qualify for tax free pass-through 
of income. Also, because REITs and REIT-like entities typically are invested in a limited number of projects 
or in a particular market segment, these entities are more susceptible to adverse developments affecting 
a single project or market segment than more broadly diversified investments. The performance of a fund 
may be materially different from the broad equity market.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_DerivativesRisk2_S000000949Summary11Member"
      id="ixv-7526">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_SecuritiesLendingRisk2_S000000949Summary11Member"
      id="ixv-7530">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_OperationalRisk2_S000000949Summary11Member"
      id="ixv-7534">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_CyberSecurityRisk2_S000000949Summary11Member"
      id="ixv-7539">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272630"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-7549">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272631">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272632"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272633">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272634">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272635">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272636">DFA Real 
Estate Securities Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272637">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272638">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272639"
      unitRef="pure">0.1788</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272640">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272641"
      unitRef="pure">-0.2306</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272642">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272643">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272644">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272645"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272646"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272647"
      unitRef="pure">0.0554</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272648">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272649"
      unitRef="pure">0.0058</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272650"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272651"
      unitRef="pure">0.0425</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      id="ixv-272652">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272653"
      unitRef="pure">0.0111</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272654"
      unitRef="pure">0.0347</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272655"
      unitRef="pure">0.0390</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_DowJonesUSSelectREITIndex329_S000000949Member_S000000949Summary11Member"
      id="ixv-272656">Dow Jones U.S. Select REIT Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary11Member"
      id="ixv-272657">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_DowJonesUSSelectREITIndex330_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272658"
      unitRef="pure">0.0367</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_DowJonesUSSelectREITIndex330_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272659"
      unitRef="pure">0.0665</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_DowJonesUSSelectREITIndex330_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272660"
      unitRef="pure">0.0481</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index331_S000000949Member_S000000949Summary11Member"
      id="ixv-272661">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index332_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272662"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index332_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272663"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index332_S000000949Member_S000000949Summary11Member"
      decimals="INF"
      id="ixv-272664"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272665"> U.S. Large Cap Growth Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272666"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-7897">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Large Cap Growth Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272667"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-7904">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272668">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272669">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272670"
      unitRef="pure">0.0015</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272671"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272672"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272673">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-7963">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272674"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272675"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272676"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272677"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272678"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272679"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272680"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272681"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272682"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272683"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272684">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-7990">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272685"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272686"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-8000">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Large Cap Growth Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Large Cap Growth Portfolio is designed to purchase a broad and diverse group of readily marketable 
securities of large U.S. companies that the Advisor determines to have high profitability and high relative 
prices compared to other U.S. large cap companies at the time of purchase. A company&#x2019;s market capitalization 
is the &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;number of its shares outstanding times its price per share. Under a market capitalization 
weighted approach, companies with higher market capitalizations generally represent a larger proportion 
of the Portfolio than companies with relatively lower market capitalizations. Securities are considered 
higher relative price (growth) stocks primarily because a company&#x2019;s shares have a high price in 
relation to their book value (a &#x201c;price to book ratio&#x201d;) when compared with other U.S. large 
cap companies. The Advisor may overweight certain stocks, including smaller companies, lower relative 
price stocks, and/or higher profitability stocks within the large-cap growth segment of the U.S. market. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price or profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Large Cap Growth Portfolio will invest 
at least 80% of its net assets in securities of large cap U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers large cap companies to be companies whose market capitalizations are generally 
in the highest 90% of total market capitalization or companies whose market capitalizations are larger 
than or equal to the 1,000&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th &lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;largest U.S. company, whichever 
results in the higher market capitalization break. Total market capitalization is based on the market 
capitalization of eligible U.S. operating companies listed on a securities exchange in the United States 
that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization guidelines 
described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a large cap company would be $16,768 million or above. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Large Cap Growth Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth Portfolio may lend its portfolio 
securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_PrincipalRisks2_S000039438Summary12Member"
      id="ixv-8016">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x115x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_RiskLoseMoneyMember_S000039438Summary12Member"
      id="ixv-272687">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_RiskNotInsuredMember_S000039438Summary12Member"
      id="ixv-272688">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_EquityMarketRisk2_S000039438Summary12Member"
      id="ixv-8022">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_GrowthInvestmentRisk2_S000039438Summary12Member"
      id="ixv-8027">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
the Portfolio to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_ProfitabilityInvestmentRisk2_S000039438Summary12Member"
      id="ixv-8032">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_DerivativesRisk2_S000039438Summary12Member"
      id="ixv-8036">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;the risks of those derivatives. Derivative instruments are subject to a number 
of risks including counterparty, liquidity, interest rate, market, credit and management risks, as well 
as difficulties with respect to valuation. Changes in the value of a derivative may not correlate perfectly 
with the underlying asset, rate or index, and a fund could lose more than the principal amount invested. 
&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_SecuritiesLendingRisk2_S000039438Summary12Member"
      id="ixv-8045">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_OperationalRisk2_S000039438Summary12Member"
      id="ixv-8049">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_CyberSecurityRisk2_S000039438Summary12Member"
      id="ixv-8054">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272689"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-8064">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272690">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272691"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272692">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272693">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272694">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272695">U.S. 
Large Cap Growth Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272696">Highest 
Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272697">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272698"
      unitRef="pure">0.2145</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272699">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272700"
      unitRef="pure">-0.1669</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272701">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272702">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272703">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272704"
      unitRef="pure">0.1262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272705"
      unitRef="pure">0.1329</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272706"
      unitRef="pure">0.1501</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272707">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272708"
      unitRef="pure">0.1237</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272709"
      unitRef="pure">0.1228</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272710"
      unitRef="pure">0.1417</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      id="ixv-272711">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272712"
      unitRef="pure">0.0763</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272713"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272714"
      unitRef="pure">0.1241</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000GrowthIndex333_S000039438Member_S000039438Summary12Member"
      id="ixv-272715">Russell 1000&#xae; 
Growth Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary12Member"
      id="ixv-272716">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000GrowthIndex334_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272717"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000GrowthIndex334_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272718"
      unitRef="pure">0.1532</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000GrowthIndex334_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272719"
      unitRef="pure">0.1813</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index335_S000039438Member_S000039438Summary12Member"
      id="ixv-272720">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index336_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272721"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index336_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272722"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index336_S000039438Member_S000039438Summary12Member"
      decimals="INF"
      id="ixv-272723"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272724"> U.S. Small Cap Growth Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272725"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8411">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Small Cap Growth Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272726"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8418">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272727">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272728">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272729"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272730"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272731"
      unitRef="pure">0.0031</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272732">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8477">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272733"
      unitRef="usd">32</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272734"
      unitRef="usd">32</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272735"
      unitRef="usd">100</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272736"
      unitRef="usd">100</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272737"
      unitRef="usd">174</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272738"
      unitRef="usd">174</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272739"
      unitRef="usd">174</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272740"
      unitRef="usd">393</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272741"
      unitRef="usd">393</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272742"
      unitRef="usd">393</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272743">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8504">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;18%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272744"
      unitRef="pure">0.18</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272745"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8514">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Small Cap Growth Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Growth Portfolio, using a market capitalization weighted approach, is designed to purchase 
a broad and diverse group of readily marketable securities of U.S. small cap companies that the Advisor 
determines to have high profitability and high relative prices compared to other U.S. small cap companies 
at the time of purchase. &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A company&#x2019;s market capitalization is the number of its shares outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of the Portfolio than companies with relatively 
lower market capitalizations. Securities are considered higher relative price (growth) stocks primarily 
because a company&#x2019;s shares have a high price in relation to their book value (a &#x201c;price to 
book ratio&#x201d;) when compared with other U.S. small cap companies. The Portfolio may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small-cap growth segment of the U.S. market. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Small Cap Growth Portfolio will invest 
at least 80% of its net assets in securities of small cap U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers small cap companies to be companies whose market capitalizations are generally 
in the lowest 10% of total market capitalization or companies whose market capitalizations are smaller 
than the 1,000&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th &lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;largest U.S. company, whichever 
results in the higher market capitalization break. Total market capitalization is based on the market 
capitalization of eligible U.S. operating companies listed on a securities exchange in the United States 
that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization guidelines 
described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a small cap company would be below $16,768 million. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Small Cap Growth Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth Portfolio may lend its portfolio 
securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_PrincipalRisks2_S000039439Summary13Member"
      id="ixv-8530">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x125x2"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_RiskLoseMoneyMember_S000039439Summary13Member"
      id="ixv-272746">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_RiskNotInsuredMember_S000039439Summary13Member"
      id="ixv-272747">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_EquityMarketRisk2_S000039439Summary13Member"
      id="ixv-8536">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_SmallCompanyRisk2_S000039439Summary13Member"
      id="ixv-8541">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies 
are often less liquid than those of large companies and this could make it difficult to sell a small 
company security at a desired time or price. As a result, small company stocks may fluctuate relatively 
more in price. In general, smaller capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_GrowthInvestmentRisk2_S000039439Summary13Member"
      id="ixv-8549">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause the Portfolio to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_ProfitabilityInvestmentRisk2_S000039439Summary13Member"
      id="ixv-8554">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_DerivativesRisk2_S000039439Summary13Member"
      id="ixv-8558">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_SecuritiesLendingRisk2_S000039439Summary13Member"
      id="ixv-8562">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_OperationalRisk2_S000039439Summary13Member"
      id="ixv-8566">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_CyberSecurityRisk2_S000039439Summary13Member"
      id="ixv-8571">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272748"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-8581">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272749">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272750"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272751">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272752">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272753">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272754">U.S. 
Small Cap Growth Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272755">Highest 
Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272756">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272757"
      unitRef="pure">0.2716</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272758">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272759"
      unitRef="pure">-0.3033</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272760">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272761">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272762">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272763"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272764"
      unitRef="pure">0.0865</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272765"
      unitRef="pure">0.1053</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272766">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272767"
      unitRef="pure">0.0579</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272768"
      unitRef="pure">0.0796</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272769"
      unitRef="pure">0.0990</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      id="ixv-272770">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272771"
      unitRef="pure">0.0362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272772"
      unitRef="pure">0.0671</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272773"
      unitRef="pure">0.0854</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000GrowthIndex337_S000039439Member_S000039439Summary13Member"
      id="ixv-272774">Russell 2000&#xae; 
Growth Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary13Member"
      id="ixv-272775">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000GrowthIndex338_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272776"
      unitRef="pure">0.1301</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000GrowthIndex338_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272777"
      unitRef="pure">0.0318</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000GrowthIndex338_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272778"
      unitRef="pure">0.0957</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index339_S000039439Member_S000039439Summary13Member"
      id="ixv-272779">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index340_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272780"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index340_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272781"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index340_S000039439Member_S000039439Summary13Member"
      decimals="INF"
      id="ixv-272782"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272783"> U.S. Large Cap Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272784"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16751">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Large Cap Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272785"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16758">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272786">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272787">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272788"
      unitRef="pure">0.0010</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1067_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272790"
      unitRef="pure">0.0016</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1069_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272792"
      unitRef="pure">0.0014</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272793">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16851">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272794"
      unitRef="usd">14</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272795"
      unitRef="usd">14</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272796"
      unitRef="usd">50</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272797"
      unitRef="usd">50</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272798"
      unitRef="usd">88</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272799"
      unitRef="usd">88</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272800"
      unitRef="usd">88</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272801"
      unitRef="usd">203</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272802"
      unitRef="usd">203</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268971Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272803"
      unitRef="usd">203</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272804">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16878">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="ixv-272805"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272806"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16893">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Large Cap Equity Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity Portfolio is designed to purchase 
a broad and diverse group of readily marketable equity securities of U.S. companies that the Advisor 
determines to be large capitalization companies within the U.S. Universe. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. The Advisor generally defines the 
U.S. Universe as a market capitalization weighted set (e.g., the larger the company, the greater the 
proportion of the U.S. Universe it represents) of U.S. operating companies listed on a securities exchange 
in the United States that is deemed appropriate by the Advisor. As of the date of this Prospectus, for 
purposes of the Portfolio, the Advisor considers large cap companies to be companies whose market capitalizations 
are generally in the highest 90% of total market capitalization within the U.S. Universe or companies 
whose market capitalizations are larger than or equal to the 1,000th largest U.S. company within the 
U.S. Universe, whichever results in the higher market capitalization break. Total market capitalization 
is based on the market capitalization of eligible operating companies within the U.S. Universe. Under 
the Advisor&#x2019;s market capitalization guidelines described above, based on market capitalization 
data as of December 31, 2025, the market capitalization of a large cap company would be $16,768 million 
or above. This threshold will change due to market conditions. As a non-fundamental policy, under normal 
circumstances, the Portfolio will invest at least 80% of its net assets in equity securities of large 
cap U.S. companies. The Advisor generally defines a U.S. company as one that is listed and principally 
traded on a securities exchange in the United States that is deemed appropriate by the Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may overweight certain securities, including smaller companies, lower relative price stocks, 
and/or higher profitability stocks within the large cap segment of the U.S. Universe. An equity issuer 
is considered to have a low relative price (i.e., a value stock) primarily because it has a low price 
in relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time. The Advisor may also increase or reduce the U.S. Large Cap Equity Portfolio&#x2019;s exposure 
to an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity Portfolio may 
lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Equity 
Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek 
to replicate the performance of a specific index and may have a higher degree of portfolio turnover than 
passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_PrincipalRisks2_S000041113Summary15Member"
      id="ixv-16904">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_RiskLoseMoneyMember_S000041113Summary15Member"
      id="ixv-272807">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_RiskNotInsuredMember_S000041113Summary15Member"
      id="ixv-272808">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_EquityMarketRisk2_S000041113Summary15Member"
      id="ixv-16913">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of equity securities, and a fund that 
owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of 
falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_ProfitabilityInvestmentRisk2_S000041113Summary15Member"
      id="ixv-16918">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
High relative profitability stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_ValueInvestmentRisk2_S000041113Summary15Member"
      id="ixv-16922">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_DerivativesRisk2_S000041113Summary15Member"
      id="ixv-16927">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging 
purposes may be considered to carry more risk than other types of investments. When a fund uses derivatives, 
the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject 
to a number of risks including counterparty, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_SecuritiesLendingRisk2_S000041113Summary15Member"
      id="ixv-16931">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_OperationalRisk2_S000041113Summary15Member"
      id="ixv-16935">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_CyberSecurityRisk2_S000041113Summary15Member"
      id="ixv-16940">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_MarketTradingRisk2_S000041113Summary15Member"
      id="ixv-16946">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_PremiumDiscountRisk2_S000041113Summary15Member"
      id="ixv-16951">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value 
of your investment may fluctuate. Disruptions to creations and redemptions or the market price of a fund&#x2019;s 
holdings, the existence of extreme market volatility or potential lack of an active trading market for 
shares may widen bid-ask spreads and result in shares trading at a significant premium or discount to 
NAV. If a shareholder purchases shares at a time &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;when the market price is at a premium to the NAV or sells shares at a time when 
the market price is at a discount to the NAV, the shareholder may sustain losses.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272809"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-16966">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results. Updated performance information for the Portfolio can be obtained by 
visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table.  In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272810">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272811"> The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272812">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272813">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272814">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272815">U.S. 
Large Cap Equity Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="ixv-272816">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="ixv-272817">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1122_"
      unitRef="pure">0.2160</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="ixv-272819">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1125_"
      unitRef="pure">-0.2151</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="ixv-272821">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="ixv-272822">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="_1129_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1130_"
      unitRef="pure">0.1677</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1131_"
      unitRef="pure">0.1362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1132_"
      unitRef="pure">0.1435</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="_1133_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1134_"
      unitRef="pure">0.1647</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1135_"
      unitRef="pure">0.1277</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1136_"
      unitRef="pure">0.1368</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      id="_1137_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1138_"
      unitRef="pure">0.1010</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1139_"
      unitRef="pure">0.1070</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000127650Member_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1140_"
      unitRef="pure">0.1189</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index343_S000041113Member_S000041113Summary15Member"
      id="_1141_">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000041113Member_S000041113Summary15Member"
      id="_1142_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index344_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1143_"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index344_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1144_"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index344_S000041113Member_S000041113Summary15Member"
      decimals="INF"
      id="_1145_"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272840"> U.S. Small Cap Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272841"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17300">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Small Cap Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272842"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17307">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272843">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272844">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272845"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1154_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272847"
      unitRef="pure">0.0033</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1156_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272849"
      unitRef="pure">0.0031</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272850">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17400">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272851"
      unitRef="usd">32</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272852"
      unitRef="usd">32</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272853"
      unitRef="usd">104</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272854"
      unitRef="usd">104</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272855"
      unitRef="usd">183</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272856"
      unitRef="usd">183</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272857"
      unitRef="usd">183</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272858"
      unitRef="usd">416</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272859"
      unitRef="usd">416</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268968Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272860"
      unitRef="usd">416</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272861">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17427">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="ixv-272862"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272863"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17442">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Small Cap Value Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value Portfolio, using a market capitalization 
weighted approach, is designed to purchase a broad and diverse group of the readily marketable securities 
of U.S. small cap companies that the Advisor determines to be lower relative price stocks. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. Under a market 
capitalization weighted approach, companies with higher market capitalizations generally represent a 
larger proportion of the Portfolio than companies with relatively lower market capitalizations.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Value Portfolio may emphasize certain stocks, including smaller capitalization companies, 
lower relative price stocks, and/or higher profitability stocks as compared to their representation in 
the small-cap value segment of the U.S. market. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a 
non-fundamental policy, under normal circumstances, the U.S. Small Cap Value Portfolio will invest at 
least 80% of its net assets in securities of small cap U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers small cap companies to be companies whose market capitalizations are generally 
in the lowest 10% of total market capitalization or companies whose market capitalizations are smaller 
than the 1,000th largest U.S. company, whichever results in the higher market capitalization break. Total 
market capitalization is based on the market capitalization of eligible U.S. operating companies listed 
on a securities exchange in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s 
market capitalization guidelines described above, based on market capitalization data as of December 
31, 2025, the market capitalization of a small cap company would be below $16,768 million. This threshold 
will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the U.S. Small Cap Value Portfolio&#x2019;s exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Value Portfolio may purchase or sell futures 
contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Value Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Value Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") 
and does not seek to replicate the performance of a specific index and may have a higher degree of portfolio 
turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_PrincipalRisks2_S000000987Summary16Member"
      id="ixv-17460">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x25x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_RiskLoseMoneyMember_S000000987Summary16Member"
      id="ixv-272864">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_RiskNotInsuredMember_S000000987Summary16Member"
      id="ixv-272865">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_EquityMarketRisk2_S000000987Summary16Member"
      id="ixv-17466">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_SmallCompanyRisk2_S000000987Summary16Member"
      id="ixv-17471">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_ValueInvestmentRisk2_S000000987Summary16Member"
      id="ixv-17475">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_ProfitabilityInvestmentRisk2_S000000987Summary16Member"
      id="ixv-17480">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_DerivativesRisk2_S000000987Summary16Member"
      id="ixv-17484">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_SecuritiesLendingRisk2_S000000987Summary16Member"
      id="ixv-17488">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_OperationalRisk2_S000000987Summary16Member"
      id="ixv-17492">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_CyberSecurityRisk2_S000000987Summary16Member"
      id="ixv-17497">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_MarketTradingRisk2_S000000987Summary16Member"
      id="ixv-17507">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active 
trading markets for the ETF Class shares may not be developed or maintained by market makers or authorized 
participants. Authorized participants are not obligated to make a market in the ETF Class shares or to 
submit purchase or redemption orders for creation units, which may widen bid-ask spreads. Trading in 
shares on an exchange may be halted in certain circumstances. There can be no assurance that the requirements 
of the listing exchange necessary to maintain the listing of the ETF Class shares will continue to be 
met. Additionally, in stressed market conditions, the market for the ETF Class shares may become less 
liquid in response to deteriorating liquidity in the markets for the fund&#x2019;s portfolio holdings, 
which may cause a significant variance in the market price of the ETF Class shares and their underlying 
value as well as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_PremiumDiscountRisk2_S000000987Summary16Member"
      id="ixv-17512">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) 
of the ETF Class shares and the value of your investment may fluctuate. Disruptions to creations and 
redemptions or the market price of a fund&#x2019;s holdings, the existence of extreme market volatility 
or potential lack of an active trading market for shares may widen bid-ask spreads and result in shares 
trading at a significant premium or discount to NAV. If a shareholder purchases shares at a time when 
the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount 
to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272866"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-17522">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272867">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272868"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272869">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272870">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272871">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272872">U.S. 
Small Cap Value Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="ixv-272873">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="ixv-272874">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1210_"
      unitRef="pure">0.3266</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="ixv-272876">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1213_"
      unitRef="pure">-0.3902</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="ixv-272878">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="ixv-272879">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="_1217_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1218_"
      unitRef="pure">0.0838</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1219_"
      unitRef="pure">0.1376</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1220_"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="_1221_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1222_"
      unitRef="pure">0.0792</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1223_"
      unitRef="pure">0.1249</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1224_"
      unitRef="pure">0.0919</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      id="_1225_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1226_"
      unitRef="pure">0.0525</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1227_"
      unitRef="pure">0.1079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002738Member_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1228_"
      unitRef="pure">0.0821</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex345_S000000987Member_S000000987Summary16Member"
      id="_1229_">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000987Member_S000000987Summary16Member"
      id="_1230_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex346_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1231_"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex346_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1232_"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000ValueIndex346_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1233_"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index347_S000000987Member_S000000987Summary16Member"
      id="_1234_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index348_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1236_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index348_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1237_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index348_S000000987Member_S000000987Summary16Member"
      decimals="INF"
      id="_1238_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272901"> U.S. Targeted Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272902"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-17894">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Targeted Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272903"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-17901">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272904">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272905">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272906"
      unitRef="pure">0.0027</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1247_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272908"
      unitRef="pure">0.0033</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1249_"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272910"
      unitRef="pure">0.0029</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272911">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-17994">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272912"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272913"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272914"
      unitRef="usd">102</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272915"
      unitRef="usd">102</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272916"
      unitRef="usd">181</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272917"
      unitRef="usd">181</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272918"
      unitRef="usd">181</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272919"
      unitRef="usd">414</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272920"
      unitRef="usd">414</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268963Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272921"
      unitRef="usd">414</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272922">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-18021">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the  portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="ixv-272923"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272924"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-18036">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Targeted Value Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value Portfolio, using a market capitalization 
weighted approach, is designed to purchase a broad and diverse group of the readily marketable securities 
of U.S. small and mid-cap companies that the Advisor determines to be lower relative price stocks with 
higher profitability. A company&#x2019;s market capitalization is the number of its shares outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of the Portfolio than companies with relatively 
lower market capitalizations. The Portfolio may emphasize certain stocks, including smaller capitalization 
companies, lower relative price stocks, and/or higher profitability stocks as compared to their representation 
in the small-and mid-cap value segment of the U.S. market. An equity issuer is considered to have a low 
relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price and profitability are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Targeted Value Portfolio will invest at 
least 80% of its net assets in securities of U.S. companies. The Advisor generally defines a U.S. company 
as one that is listed and principally traded on a securities exchange in the United States that is deemed 
appropriate by the Advisor. As of the date of this Prospectus, the Advisor considers for investment companies 
whose market capitalizations are generally smaller than the 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
largest U.S. company. Total market capitalization is based on the market capitalization of eligible U.S. 
operating companies listed on a securities exchange in the United States that is deemed appropriate by 
the Advisor. Based on market capitalization data as of December 31, 2025, the market capitalization of 
a company smaller than the 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; largest 
U.S. company would be below $15,092 million. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Targeted Value Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value Portfolio may 
lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Targeted Value 
Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek 
to replicate the performance of a specific index and may have a higher degree of portfolio turnover than 
passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_PrincipalRisks2_S000000970Summary17Member"
      id="ixv-18058">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x35x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_RiskLoseMoneyMember_S000000970Summary17Member"
      id="ixv-272925">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_RiskNotInsuredMember_S000000970Summary17Member"
      id="ixv-272926">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_EquityMarketRisk2_S000000970Summary17Member"
      id="ixv-18064">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_SmallandMid-CapCompanyRisk2_S000000970Summary17Member"
      id="ixv-18069">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_ValueInvestmentRisk2_S000000970Summary17Member"
      id="ixv-18074">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_ProfitabilityInvestmentRisk2_S000000970Summary17Member"
      id="ixv-18079">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_DerivativesRisk2_S000000970Summary17Member"
      id="ixv-18083">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_SecuritiesLendingRisk2_S000000970Summary17Member"
      id="ixv-18087">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_OperationalRisk2_S000000970Summary17Member"
      id="ixv-18091">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_CyberSecurityRisk2_S000000970Summary17Member"
      id="ixv-18096">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_MarketTradingRisk2_S000000970Summary17Member"
      id="ixv-18106">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active 
trading markets for the ETF Class shares may not be developed or maintained by market makers or authorized 
participants. Authorized participants are not obligated to make a market in the ETF Class shares or to 
submit purchase or redemption orders for creation units, which may widen bid-ask spreads. Trading in 
shares on an exchange may be halted in certain circumstances. There can be no assurance that the requirements 
of the listing exchange necessary to maintain the listing of the ETF Class shares will continue to be 
met. Additionally, in stressed market conditions, the market for the ETF Class shares may become less 
liquid in response to deteriorating liquidity in the markets for the fund&#x2019;s portfolio holdings, 
which may cause a significant variance in the market price of the ETF Class shares and their underlying 
value as well as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_PremiumDiscountRisk2_S000000970Summary17Member"
      id="ixv-18111">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) 
of the ETF Class shares and the value of your investment may fluctuate. Disruptions to creations and 
redemptions or the market price of a fund&#x2019;s holdings, the existence of extreme market volatility 
or potential lack of an active trading market for shares may widen bid-ask spreads and result in shares 
trading at a significant premium or discount to NAV. If a shareholder purchases shares at a time when 
the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount 
to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272927"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-18121">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272928">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272929"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272930">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272931">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272932">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272933">U.S. 
Targeted Value Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="ixv-272934">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="ixv-272935">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1303_"
      unitRef="pure">0.3277</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="ixv-272937">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1306_"
      unitRef="pure">-0.3919</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="ixv-272939">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="ixv-272940">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="_1310_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1311_"
      unitRef="pure">0.0955</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1312_"
      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1313_"
      unitRef="pure">0.1081</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="_1314_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1315_"
      unitRef="pure">0.0908</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1316_"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1317_"
      unitRef="pure">0.0975</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      id="_1318_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1319_"
      unitRef="pure">0.0594</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1320_"
      unitRef="pure">0.1070</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002721Member_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1321_"
      unitRef="pure">0.0860</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex349_S000000970Member_S000000970Summary17Member"
      id="_1322_">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000970Member_S000000970Summary17Member"
      id="_1323_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex350_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1324_"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex350_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1325_"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000ValueIndex350_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1326_"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index351_S000000970Member_S000000970Summary17Member"
      id="_1327_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index352_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1329_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index352_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1330_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index352_S000000970Member_S000000970Summary17Member"
      decimals="INF"
      id="_1331_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272962"> U.S. Core Equity 1 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272963"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18493">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Core Equity 1 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272964"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18500">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272965">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272966">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272967"
      unitRef="pure">0.0012</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1340_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272969"
      unitRef="pure">0.0017</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1342_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272971"
      unitRef="pure">0.0015</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272972">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18593">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272973"
      unitRef="usd">15</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272974"
      unitRef="usd">15</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272975"
      unitRef="usd">53</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272976"
      unitRef="usd">53</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272977"
      unitRef="usd">94</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272978"
      unitRef="usd">94</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272979"
      unitRef="usd">94</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272980"
      unitRef="usd">215</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272981"
      unitRef="usd">215</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268965Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272982"
      unitRef="usd">215</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272983">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18620">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the  portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;2%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="ixv-272984"
      unitRef="pure">0.02</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272985"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18635">&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Core Equity 1 Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 1 Portfolio is designed to purchase a broad and diverse group of equity securities within 
a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of 
the universe it represents) of U.S. companies (the &#x201c;U.S. Universe&#x201d;). The Portfolio invests 
in companies of all sizes, with moderately increased exposure to smaller capitalization, lower relative 
price, and higher profitability companies as compared to their representation in the U.S. Universe. The 
Portfolio&#x2019;s moderately increased exposure to smaller capitalization, lower relative price, and 
higher profitability companies may be achieved by decreasing the allocation of the Portfolio&#x2019;s 
assets to larger capitalization, higher relative price, or lower profitability companies relative to 
their weight in the U.S. Universe. An equity issuer is considered to have a high relative price (i.e., 
a growth stock) primarily because it has a high price in relation to its book value. An equity issuer 
is considered to have a low relative price (i.e., a value stock) primarily because it has a low price 
in relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, U.S. 
Core Equity 1 Portfolio will invest at least 80% of its net assets in equity securities of U.S. companies. 
The Advisor generally defines a U.S. company as one that is listed and principally traded on a securities 
exchange in the United States that is deemed appropriate by the Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Core Equity 1 Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 1 
Portfolio also may purchase or sell futures contracts and options on futures contracts for U.S. equity 
securities and indices to increase or decrease equity market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 1 Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 1 
Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek 
to replicate the performance of a specific index and may have a higher degree of portfolio turnover than 
passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_PrincipalRisks2_S000000979Summary18Member"
      id="ixv-18648">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_RiskLoseMoneyMember_S000000979Summary18Member"
      id="ixv-272986">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_RiskNotInsuredMember_S000000979Summary18Member"
      id="ixv-272987">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_EquityMarketRisk2_S000000979Summary18Member"
      id="ixv-18657">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of equity securities, and a fund that 
owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of 
falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_SmallandMid-CapCompanyRisk2_S000000979Summary18Member"
      id="ixv-18662">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_ProfitabilityInvestmentRisk2_S000000979Summary18Member"
      id="ixv-18667">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_ValueInvestmentRisk2_S000000979Summary18Member"
      id="ixv-18671">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_DerivativesRisk2_S000000979Summary18Member"
      id="ixv-18676">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_SecuritiesLendingRisk2_S000000979Summary18Member"
      id="ixv-18680">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_OperationalRisk2_S000000979Summary18Member"
      id="ixv-18684">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_CyberSecurityRisk2_S000000979Summary18Member"
      id="ixv-18689">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_MarketTradingRisk2_S000000979Summary18Member"
      id="ixv-18695">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_PremiumDiscountRisk2_S000000979Summary18Member"
      id="ixv-18703">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value of your investment may fluctuate. 
Disruptions to creations and redemptions or the market price of a fund&#x2019;s holdings, the existence 
of extreme market volatility or potential lack of an active trading market for shares may widen bid-ask 
spreads and result in shares trading at a significant premium or discount to NAV. If a shareholder purchases 
shares at a time when the market price is at a premium to the NAV or sells shares at a time when the 
market price is at a discount to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272988"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-18713">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results. Updated performance information for the Portfolio can be obtained by 
visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table.  In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272989">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272990"> The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272991">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272992">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272993">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-272994">U.S. 
Core Equity 1 Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="ixv-272995">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="ixv-272996">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1396_"
      unitRef="pure">0.2216</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="ixv-272998">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1399_"
      unitRef="pure">-0.2435</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="ixv-273000">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="ixv-273001">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="_1403_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1404_"
      unitRef="pure">0.1600</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1405_"
      unitRef="pure">0.1341</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1406_"
      unitRef="pure">0.1379</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="_1407_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1408_"
      unitRef="pure">0.1569</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1409_"
      unitRef="pure">0.1279</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1410_"
      unitRef="pure">0.1316</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      id="_1411_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1412_"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1413_"
      unitRef="pure">0.1060</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002730Member_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1414_"
      unitRef="pure">0.1138</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index353_S000000979Member_S000000979Summary18Member"
      id="_1415_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000979Member_S000000979Summary18Member"
      id="_1416_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index354_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1417_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index354_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1418_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index354_S000000979Member_S000000979Summary18Member"
      decimals="INF"
      id="_1419_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273019"> U.S. Core Equity 2 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273020"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19047">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Core Equity 2 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273021"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19054">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273022">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273023">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273024"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1428_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273026"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1430_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273028"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273029">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19147">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273030"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273031"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273032"
      unitRef="usd">65</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273033"
      unitRef="usd">65</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273034"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273035"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273036"
      unitRef="usd">115</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273037"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273038"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268966Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273039"
      unitRef="usd">265</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273040">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19174">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="ixv-273041"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273042"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19189">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Core Equity 2 Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 2 Portfolio is designed to purchase a 
broad and diverse group of equity securities within a market capitalization weighted universe (e.g., 
the larger the company, the greater the proportion of the universe it represents) of U.S. companies (the 
&#x201c;U.S. Universe&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully increased 
exposure to smaller capitalization, lower relative price and higher profitability companies as compared 
to their representation in the U.S. Universe. The Portfolio&#x2019;s meaningfully increased exposure to 
smaller capitalization, lower relative price and higher profitability companies may be achieved by decreasing 
the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower 
profitability companies relative to their weight in the U.S. Universe. An equity issuer is considered 
to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation 
to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, U.S. Core Equity 2 Portfolio will invest at least 80% of its net assets in 
equity securities of U.S. companies. The Advisor generally defines a U.S. company as one that is listed 
and principally traded on a securities exchange in the United States that is deemed appropriate by the 
Advisor.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Core Equity 
2 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in 
assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 2 Portfolio also may purchase or sell futures contracts and options on futures contracts 
for U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Core Equity 2 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Core Equity 2 Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") 
and does not seek to replicate the performance of a specific index and may have a higher degree of portfolio 
turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_PrincipalRisks2_S000000980Summary19Member"
      id="ixv-19202">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_RiskLoseMoneyMember_S000000980Summary19Member"
      id="ixv-273043">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_RiskNotInsuredMember_S000000980Summary19Member"
      id="ixv-273044">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_EquityMarketRisk2_S000000980Summary19Member"
      id="ixv-19211">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of equity securities, and a fund that 
owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of 
falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_SmallandMid-CapCompanyRisk2_S000000980Summary19Member"
      id="ixv-19216">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_ProfitabilityInvestmentRisk2_S000000980Summary19Member"
      id="ixv-19221">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_ValueInvestmentRisk2_S000000980Summary19Member"
      id="ixv-19225">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_DerivativesRisk2_S000000980Summary19Member"
      id="ixv-19230">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_SecuritiesLendingRisk2_S000000980Summary19Member"
      id="ixv-19234">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_OperationalRisk2_S000000980Summary19Member"
      id="ixv-19238">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_CyberSecurityRisk2_S000000980Summary19Member"
      id="ixv-19243">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_MarketTradingRisk2_S000000980Summary19Member"
      id="ixv-19249">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_PremiumDiscountRisk2_S000000980Summary19Member"
      id="ixv-19257">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value of your investment may fluctuate. 
Disruptions to creations and redemptions or the market price of a fund&#x2019;s holdings, the existence 
of extreme market volatility or potential lack of an active trading market for shares may widen bid-ask 
spreads and result in shares trading at a significant premium or discount to NAV. If a shareholder purchases 
shares at a time when the market price is at a premium to the NAV or sells shares at a time when the 
market price is at a discount to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273045"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-19267">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results. Updated performance information for the Portfolio can be obtained by 
visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table.  In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273046">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273047"> The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273048">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273049">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273050">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273051">U.S. 
Core Equity 2 Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="ixv-273052">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="ixv-273053">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1484_"
      unitRef="pure">0.2239</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="ixv-273055">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1487_"
      unitRef="pure">-0.2555</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="ixv-273057">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="ixv-273058">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="_1491_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1492_"
      unitRef="pure">0.1599</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1493_"
      unitRef="pure">0.1338</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1494_"
      unitRef="pure">0.1339</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="_1495_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1496_"
      unitRef="pure">0.1567</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1497_"
      unitRef="pure">0.1267</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1498_"
      unitRef="pure">0.1269</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      id="_1499_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1500_"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1501_"
      unitRef="pure">0.1055</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002731Member_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1502_"
      unitRef="pure">0.1100</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index355_S000000980Member_S000000980Summary19Member"
      id="_1503_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000980Member_S000000980Summary19Member"
      id="_1504_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index356_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1505_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index356_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1506_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index356_S000000980Member_S000000980Summary19Member"
      decimals="INF"
      id="_1507_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273076"> U.S. Vector Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273077"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19601">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Vector Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273078"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19608">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273079">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273080">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273081"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1516_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273083"
      unitRef="pure">0.0026</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1518_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273085"
      unitRef="pure">0.0024</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273086">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19701">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273087"
      unitRef="usd">25</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273088"
      unitRef="usd">25</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273089"
      unitRef="usd">82</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273090"
      unitRef="usd">82</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273091"
      unitRef="usd">144</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273092"
      unitRef="usd">144</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273093"
      unitRef="usd">144</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273094"
      unitRef="usd">329</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273095"
      unitRef="usd">329</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268967Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273096"
      unitRef="usd">329</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273097">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19728">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;9%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="ixv-273098"
      unitRef="pure">0.09</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273099"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19743">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Vector Equity Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment 
approach that combines research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified 
by the Advisor&#x2019;s research, while balancing risk through broad diversification across companies 
and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Vector Equity Portfolio is designed to purchase a broad and diverse group of equity securities within 
a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of 
the universe it represents) of U.S. operating companies (the &#x201c;U.S. Universe&#x201d;). The Portfolio 
invests in companies of all sizes, with strongly increased exposure to smaller capitalization, lower 
relative price and higher profitability companies as compared to their representation in the U.S. Universe. 
The Portfolio&#x2019;s strongly increased exposure to smaller capitalization, lower relative price and 
higher profitability companies may be achieved by decreasing the allocation of the Portfolio&#x2019;s 
assets to larger capitalization, higher relative price, or lower profitability companies relative to 
their weight in the U.S. Universe or by avoiding purchases in that segment of the market. An equity issuer 
is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price 
in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value 
stock) primarily because it has a low price in relation to its book value. In assessing relative price, 
the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An 
equity issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the U.S. Vector Equity Portfolio will invest at least 80% of its net assets 
in equity securities of U.S. companies. The Advisor generally defines a U.S. company as one that is listed 
and principally traded on a securities exchange in the United States that is deemed appropriate by the 
Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Vector Equity Portfolio&#x2019;s 
exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as 
a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing a 
company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in assets 
divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics 
are subject to change from time to time. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Vector Equity 
Portfolio also may purchase or sell futures contracts and options on futures contracts for U.S. equity 
securities and indices to increase or decrease equity market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Vector Equity Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Vector Equity 
Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek 
to replicate the performance of a specific index and may have a higher degree of portfolio turnover than 
passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_PrincipalRisks2_S000000982Summary20Member"
      id="ixv-19751">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_RiskLoseMoneyMember_S000000982Summary20Member"
      id="ixv-273100">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_RiskNotInsuredMember_S000000982Summary20Member"
      id="ixv-273101">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_EquityMarketRisk2_S000000982Summary20Member"
      id="ixv-19760">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of equity securities, and a fund that 
owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of 
falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_SmallandMid-CapCompanyRisk2_S000000982Summary20Member"
      id="ixv-19765">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_ProfitabilityInvestmentRisk2_S000000982Summary20Member"
      id="ixv-19770">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_ValueInvestmentRisk2_S000000982Summary20Member"
      id="ixv-19774">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_DerivativesRisk2_S000000982Summary20Member"
      id="ixv-19779">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_SecuritiesLendingRisk2_S000000982Summary20Member"
      id="ixv-19783">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_OperationalRisk2_S000000982Summary20Member"
      id="ixv-19787">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_CyberSecurityRisk2_S000000982Summary20Member"
      id="ixv-19792">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_MarketTradingRisk2_S000000982Summary20Member"
      id="ixv-19798">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_PremiumDiscountRisk2_S000000982Summary20Member"
      id="ixv-19806">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value of your investment may fluctuate. 
Disruptions to creations and redemptions or the market price of a fund&#x2019;s holdings, the existence 
of extreme market volatility or potential lack of an active trading market for shares may widen bid-ask 
spreads and result in shares trading at a significant premium or discount to NAV. If a shareholder purchases 
shares at a time when the market price is at a premium to the NAV or sells shares at a time when the 
market price is at a discount to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273102"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-19816">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results. Updated performance information for the Portfolio can be obtained by 
visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table.  In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273103">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273104"> The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273105">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273106">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273107">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273108">U.S. 
Vector Equity Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="ixv-273109">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="ixv-273110">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1572_"
      unitRef="pure">0.2423</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="ixv-273112">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1575_"
      unitRef="pure">-0.3199</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="ixv-273114">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="ixv-273115">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="_1579_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1580_"
      unitRef="pure">0.1404</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1581_"
      unitRef="pure">0.1233</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1582_"
      unitRef="pure">0.1130</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="_1583_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1584_"
      unitRef="pure">0.1369</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1585_"
      unitRef="pure">0.1136</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1586_"
      unitRef="pure">0.1037</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      id="_1587_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1588_"
      unitRef="pure">0.0852</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1589_"
      unitRef="pure">0.0964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002733Member_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1590_"
      unitRef="pure">0.0908</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index357_S000000982Member_S000000982Summary20Member"
      id="_1591_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000982Member_S000000982Summary20Member"
      id="_1592_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index358_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1593_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index358_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1594_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index358_S000000982Member_S000000982Summary20Member"
      decimals="INF"
      id="_1595_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273133"> U.S. Small Cap Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273134"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20150">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Small Cap Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273135"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20157">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273136">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273137">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273138"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1604_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273140"
      unitRef="pure">0.0031</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1606_"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273142"
      unitRef="pure">0.0027</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273143">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20250">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273144"
      unitRef="usd">28</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273145"
      unitRef="usd">28</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273146"
      unitRef="usd">96</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273147"
      unitRef="usd">96</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273148"
      unitRef="usd">170</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273149"
      unitRef="usd">170</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273150"
      unitRef="usd">170</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273151"
      unitRef="usd">389</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273152"
      unitRef="usd">389</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268964Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273153"
      unitRef="usd">389</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273154">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20277">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="ixv-273155"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273156"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20292">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Small Cap Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Portfolio, using a market capitalization weighted approach, 
is designed to purchase a broad and diverse group of readily marketable securities of U.S. small cap 
companies. A company&#x2019;s market capitalization is the number of its shares outstanding times its 
price per share. Under a market capitalization weighted approach, companies with higher market capitalizations 
generally represent a larger proportion of the Portfolio than companies with relatively lower market 
capitalizations. The Portfolio may emphasize certain stocks, including smaller capitalization companies, 
lower relative price stocks, and/or higher profitability stocks as compared to their representation in 
the small-cap segment of the U.S. market. An equity issuer is considered to have a low relative price 
(i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Small Cap Portfolio will invest at least 
80% of its net assets in securities of small cap U.S. companies. The Advisor generally defines a U.S. 
company as one that is listed and principally traded on a securities exchange in the United States that 
is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers small cap companies to be companies whose market capitalizations are generally 
in the lowest 10% of total market capitalization or companies whose market capitalizations are smaller 
than the 1,000th largest U.S. company, whichever results in the higher market capitalization break. Total 
market capitalization is based on the market capitalization of eligible U.S. operating companies listed 
on a securities exchange in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s 
market capitalization guidelines described above, based on market capitalization data as of December 
31, 2025, the market capitalization of a small cap company would be below $16,768 million. This threshold 
will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the U.S. Small Cap Portfolio&#x2019;s exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Portfolio may purchase or sell futures 
contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Small Cap Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and 
does not seek to replicate the performance of a specific index and may have a higher degree of portfolio 
turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_PrincipalRisks2_S000000971Summary21Member"
      id="ixv-20303">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x75x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_RiskLoseMoneyMember_S000000971Summary21Member"
      id="ixv-273157">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_RiskNotInsuredMember_S000000971Summary21Member"
      id="ixv-273158">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_EquityMarketRisk2_S000000971Summary21Member"
      id="ixv-20309">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_SmallCompanyRisk2_S000000971Summary21Member"
      id="ixv-20314">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_ProfitabilityInvestmentRisk2_S000000971Summary21Member"
      id="ixv-20318">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_ValueInvestmentRisk2_S000000971Summary21Member"
      id="ixv-20322">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_DerivativesRisk2_S000000971Summary21Member"
      id="ixv-20327">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_SecuritiesLendingRisk2_S000000971Summary21Member"
      id="ixv-20331">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_OperationalRisk2_S000000971Summary21Member"
      id="ixv-20335">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_CyberSecurityRisk2_S000000971Summary21Member"
      id="ixv-20340">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_MarketTradingRisk2_S000000971Summary21Member"
      id="ixv-20350">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active 
trading markets for the ETF Class shares may not be developed or maintained by market makers or authorized 
participants. Authorized participants are not obligated to make a market in the ETF Class shares or to 
submit purchase or redemption orders for creation units, which may widen bid-ask spreads. Trading in 
shares on an exchange may be halted in certain circumstances. There can be no assurance that the requirements 
of the listing exchange necessary to maintain the listing of the ETF Class shares will continue to be 
met. Additionally, in stressed market conditions, the market for the ETF Class shares may become less 
liquid in response to deteriorating liquidity in the markets for the fund&#x2019;s portfolio holdings, 
which may cause a significant variance in the market price of the ETF Class shares and their underlying 
value as well as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_PremiumDiscountRisk2_S000000971Summary21Member"
      id="ixv-20355">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) 
of the ETF Class shares and the value of your investment may fluctuate. Disruptions to creations and 
redemptions or the market price of a fund&#x2019;s holdings, the existence of extreme market volatility 
or potential lack of an active trading market for shares may widen bid-ask spreads and result in shares 
trading at a significant premium or discount to NAV. If a shareholder purchases shares at a time when 
the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount 
to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273159"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-20365">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273160">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273161"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273162">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273163">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273164">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273165">U.S. 
Small Cap Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="ixv-273166">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="ixv-273167">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1660_"
      unitRef="pure">0.2870</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="ixv-273169">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1663_"
      unitRef="pure">-0.3273</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="ixv-273171">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="ixv-273172">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="_1667_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1668_"
      unitRef="pure">0.0807</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1669_"
      unitRef="pure">0.0987</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1670_"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="_1671_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1672_"
      unitRef="pure">0.0778</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1673_"
      unitRef="pure">0.0903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1674_"
      unitRef="pure">0.0910</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      id="_1675_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1676_"
      unitRef="pure">0.0496</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1677_"
      unitRef="pure">0.0768</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002722Member_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1678_"
      unitRef="pure">0.0797</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000Index359_S000000971Member_S000000971Summary21Member"
      id="_1679_">Russell 2000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000971Member_S000000971Summary21Member"
      id="_1680_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000Index360_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1681_"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000Index360_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1682_"
      unitRef="pure">0.0609</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000Index360_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1683_"
      unitRef="pure">0.0962</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index361_S000000971Member_S000000971Summary21Member"
      id="_1684_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index362_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1686_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index362_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1687_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index362_S000000971Member_S000000971Summary21Member"
      decimals="INF"
      id="_1688_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273194"> U.S. Micro Cap Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273195"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20737">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Micro Cap Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273196"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20744">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
also incur usual and customary brokerage commissions when buying or selling the ETF Class shares of the 
Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273197">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273198">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273199"
      unitRef="pure">0.0038</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1697_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273201"
      unitRef="pure">0.0043</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1699_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273203"
      unitRef="pure">0.0041</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273204">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20837">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273205"
      unitRef="usd">42</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273206"
      unitRef="usd">42</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273207"
      unitRef="usd">136</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273208"
      unitRef="usd">136</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273209"
      unitRef="usd">239</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273210"
      unitRef="usd">239</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273211"
      unitRef="usd">239</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273212"
      unitRef="usd">540</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273213"
      unitRef="usd">540</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268961Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273214"
      unitRef="usd">540</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273215">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20864">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="ixv-273216"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273217"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20879">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Micro Cap Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Micro Cap Portfolio, using a market capitalization weighted approach, 
is designed to purchase a broad and diverse group of the securities of U.S. micro cap companies. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. Under a market 
capitalization weighted approach, companies with higher market capitalizations generally represent a 
larger proportion of the Portfolio than companies with relatively lower market capitalizations. The Portfolio 
may emphasize certain stocks, including smaller capitalization companies, lower relative price stocks, 
and/or higher profitability stocks as compared to their representation in the micro-cap segment of the 
U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily 
because it has a low price in relation to its book value. In assessing relative price, the Advisor may 
consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer 
is considered to have high profitability because it has high earnings or profits from operations in relation 
to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability 
are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the U.S. Micro Cap Portfolio will invest at least 80% of its net assets in 
securities of U.S. micro cap companies. The Advisor generally defines a U.S. company as one that is listed 
and principally traded on a securities exchange in the United States that is deemed appropriate by the 
Advisor. As of the date of this Prospectus, for the purposes of the Portfolio, the Advisor considers 
micro cap companies to be companies whose market capitalizations are generally in the lowest 5% of total 
market capitalization or companies whose market capitalizations are smaller than the 1,500th largest 
U.S. company, whichever results in the higher market capitalization break. Total market capitalization 
is based on the market capitalization of eligible U.S. operating companies listed on a securities exchange 
in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization 
guidelines described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a micro cap company would be below $6,819 million. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Micro Cap Portfolio&#x2019;s exposure to an eligible company, 
or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time 
to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that 
looks for opportunities to participate in the available market liquidity, while managing turnover and 
explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Micro Cap Portfolio may purchase or sell futures 
contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Micro Cap Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Micro Cap Portfolio's ETF Class operates as an actively managed exchange-traded fund ("ETF") and 
does not seek to replicate the performance of a specific index and may have a higher degree of portfolio 
turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_PrincipalRisks2_S000000948Summary22Member"
      id="ixv-20890">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x85x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_RiskLoseMoneyMember_S000000948Summary22Member"
      id="ixv-273218">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_RiskNotInsuredMember_S000000948Summary22Member"
      id="ixv-273219">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_EquityMarketRisk2_S000000948Summary22Member"
      id="ixv-20896">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_MicroCapCompanyRisk2_S000000948Summary22Member"
      id="ixv-20901">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Micro Cap 
Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of micro cap companies are generally less liquid 
than those of large companies and this could make it difficult to sell a micro cap company security at 
a desired time or price. As a result, micro cap company stocks may fluctuate relatively more in price 
over short and/or extended periods of time. In general, smaller capitalization companies, particularly 
micro cap companies, are also more vulnerable than larger companies to adverse business or economic developments 
and they may have more limited resources. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_ProfitabilityInvestmentRisk2_S000000948Summary22Member"
      id="ixv-20905">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_ValueInvestmentRisk2_S000000948Summary22Member"
      id="ixv-20909">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_DerivativesRisk2_S000000948Summary22Member"
      id="ixv-20914">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_SecuritiesLendingRisk2_S000000948Summary22Member"
      id="ixv-20918">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_OperationalRisk2_S000000948Summary22Member"
      id="ixv-20922">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_CyberSecurityRisk2_S000000948Summary22Member"
      id="ixv-20927">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_MarketTradingRisk2_S000000948Summary22Member"
      id="ixv-20937">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active 
trading markets for the ETF Class shares may not be developed or maintained by market makers or authorized 
participants. Authorized participants are not obligated to make a market in the ETF Class shares or to 
submit purchase or redemption orders for creation units, which may widen bid-ask spreads. Trading in 
shares on an exchange may be halted in certain circumstances. There can be no assurance that the requirements 
of the listing exchange necessary to maintain the listing of the ETF Class shares will continue to be 
met. Additionally, in stressed market conditions, the market for the ETF Class shares may become less 
liquid in response to deteriorating liquidity in the markets for the fund&#x2019;s portfolio holdings, 
which may cause a significant variance in the market price of the ETF Class shares and their underlying 
value as well as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_PremiumDiscountRisk2_S000000948Summary22Member"
      id="ixv-20942">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) 
of the ETF Class shares and the value of your investment may fluctuate. Disruptions to creations and 
redemptions or the market price of a fund&#x2019;s holdings, the existence of extreme market volatility 
or potential lack of an active trading market for shares may widen bid-ask spreads and result in shares 
trading at a significant premium or discount to NAV. If a shareholder purchases shares at a time when 
the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount 
to the NAV, the shareholder may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273220"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-20952">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273221">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273222"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273223">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273224">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273225">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273226">U.S. 
Micro Cap Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="ixv-273227">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="ixv-273228">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1753_"
      unitRef="pure">0.3059</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="ixv-273230">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1756_"
      unitRef="pure">-0.3475</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="ixv-273232">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="ixv-273233">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="_1760_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1761_"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1762_"
      unitRef="pure">0.1097</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1763_"
      unitRef="pure">0.1033</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="_1764_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1765_"
      unitRef="pure">0.0937</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1766_"
      unitRef="pure">0.0993</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1767_"
      unitRef="pure">0.0931</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      id="_1768_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1769_"
      unitRef="pure">0.0590</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1770_"
      unitRef="pure">0.0854</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002699Member_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1771_"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000Index363_S000000948Member_S000000948Summary22Member"
      id="_1772_">Russell 2000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000948Member_S000000948Summary22Member"
      id="_1773_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000Index364_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1774_"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000Index364_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1775_"
      unitRef="pure">0.0609</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000Index364_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1776_"
      unitRef="pure">0.0962</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index365_S000000948Member_S000000948Summary22Member"
      id="_1777_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index366_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1779_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index366_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1780_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index366_S000000948Member_S000000948Summary22Member"
      decimals="INF"
      id="_1781_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273255"> U.S. High Relative Profitability 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273256"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21324">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the U.S. High Relative Profitability 
Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273257"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21331">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may also incur usual and customary brokerage commissions when buying or selling the ETF Class shares 
of the Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273258">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273259">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273260"
      unitRef="pure">0.0019</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1790_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273262"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1792_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273264"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273265">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21424">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273266"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273267"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273268"
      unitRef="usd">75</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273269"
      unitRef="usd">75</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273270"
      unitRef="usd">133</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273271"
      unitRef="usd">133</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273272"
      unitRef="usd">133</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273273"
      unitRef="usd">304</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273274"
      unitRef="usd">304</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268972Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273275"
      unitRef="usd">304</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273276">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21451">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="ixv-273277"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273278"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21466">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. High Relative Profitability 
Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further 
balance those long-term drivers of expected returns with shorter-term drivers of expected returns and 
trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. High Relative Profitability Portfolio is designed 
to purchase a broad and diverse group of readily marketable securities of large U.S. companies that the 
Advisor determines to have high profitability relative to other U.S. large cap companies at the time 
of purchase. An equity issuer is considered to have high profitability because it has high earnings or 
profits from operations in relation to its book value or assets. The Portfolio may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the large-cap high profitability segment of the U.S. market. 
The Portfolio&#x2019;s increased exposure to such stocks may be achieved by overweighting and/or underweighting 
eligible stocks based on their market capitalization, relative price, and/or profitability characteristics. 
An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it 
has a low price in relation to its book value. In assessing relative price, the Advisor may consider 
additional factors such as price to cash flow or price to earnings ratios. The criteria the Advisor uses 
for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. High Relative Profitability Portfolio 
will invest at least 80% of its net assets in securities of U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers large cap companies to be companies whose market capitalizations are generally 
in the highest 90% of total market capitalization or companies whose market capitalizations are larger 
than or equal to the 1,000th largest U.S. company, whichever results in the higher market capitalization 
break. Total market capitalization is based on the market capitalization of eligible U.S. operating companies 
listed on a securities exchange in the United States that is deemed appropriate by the Advisor. Under 
the Advisor&#x2019;s market capitalization guidelines described above, based on market capitalization 
data as of December 31, 2025, the market capitalization of a large cap company would be $16,768 million 
or above. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. High Relative Profitability Portfolio&#x2019;s exposure to 
an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. High Relative 
Profitability Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. 
equity securities and indices to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio. The Portfolio may invest in exchange-traded funds (&#x201c;ETFs&#x201d;) 
for the purpose of gaining exposure to the U.S. stock market while maintaining liquidity.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. High Relative Profitability Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. High Relative Profitability Portfolio's ETF Class operates as an actively managed exchange-traded 
fund ("ETF") and does not seek to replicate the performance of a specific index and may have a higher 
degree of portfolio turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_PrincipalRisks2_S000057237Summary23Member"
      id="ixv-21477">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x95x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_RiskLoseMoneyMember_S000057237Summary23Member"
      id="ixv-273279">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_RiskNotInsuredMember_S000057237Summary23Member"
      id="ixv-273280">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_EquityMarketRisk2_S000057237Summary23Member"
      id="ixv-21483">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_ProfitabilityInvestmentRisk2_S000057237Summary23Member"
      id="ixv-21488">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_ValueInvestmentRisk2_S000057237Summary23Member"
      id="ixv-21492">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_DerivativesRisk2_S000057237Summary23Member"
      id="ixv-21497">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_SecuritiesLendingRisk2_S000057237Summary23Member"
      id="ixv-21501">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_OperationalRisk2_S000057237Summary23Member"
      id="ixv-21505">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_CyberSecurityRisk2_S000057237Summary23Member"
      id="ixv-21510">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_MarketTradingRisk2_S000057237Summary23Member"
      id="ixv-21516">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;liquidity in the markets for the fund&#x2019;s portfolio holdings, which may cause 
a significant variance in the market price of the ETF Class shares and their underlying value as well 
as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_PremiumDiscountRisk2_S000057237Summary23Member"
      id="ixv-21526">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares 
and the value of your investment may fluctuate. Disruptions to creations and redemptions or the market 
price of a fund&#x2019;s holdings, the existence of extreme market volatility or potential lack of an 
active trading market for shares may widen bid-ask spreads and result in shares trading at a significant 
premium or discount to NAV. If a shareholder purchases shares at a time when the market price is at a 
premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder 
may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273281"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-21536">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results. Updated performance information for the Portfolio can be obtained by 
visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table.  In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273282">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273283"> The Portfolio&#x2019;s past performance (before and after taxes) is not 
an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273284">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273285">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273286">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273287">U.S. 
High Relative Profitability Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="ixv-273288">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="ixv-273289">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1843_"
      unitRef="pure">0.1966</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="ixv-273291">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1846_"
      unitRef="pure">-0.1726</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="ixv-273293">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="ixv-273294">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="_1850_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1851_"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1852_"
      unitRef="pure">0.1260</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1853_"
      unitRef="pure">0.1448</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="_1854_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1855_"
      unitRef="pure">0.1251</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1856_"
      unitRef="pure">0.1203</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1857_"
      unitRef="pure">0.1397</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      id="_1858_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1859_"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1860_"
      unitRef="pure">0.0995</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182415Member_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1861_"
      unitRef="pure">0.1195</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index367_S000057237Member_S000057237Summary23Member"
      id="_1862_">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000057237Member_S000057237Summary23Member"
      id="_1863_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index368_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1864_"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index368_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1865_"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_Russell1000Index368_S000057237Member_S000057237Summary23Member"
      decimals="INF"
      id="_1866_"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273312"> DFA Real Estate Securities 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273313"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-21899">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the DFA Real Estate Securities 
Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273314"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-21906">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may also incur usual and customary brokerage commissions when buying or selling the ETF Class shares 
of the Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273315">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273316">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273317"
      unitRef="pure">0.0017</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1875_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273319"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1877_"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273321"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273322">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-21999">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273323"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273324"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273325"
      unitRef="usd">67</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273326"
      unitRef="usd">67</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273327"
      unitRef="usd">120</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273328"
      unitRef="usd">120</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273329"
      unitRef="usd">120</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273330"
      unitRef="usd">276</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273331"
      unitRef="usd">276</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268962Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273332"
      unitRef="usd">276</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273333">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-22026">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;6%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="ixv-273334"
      unitRef="pure">0.06</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273335"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-22041">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the DFA Real Estate Securities 
Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Real Estate Securities Portfolio, using a market capitalization 
weighted approach, purchases readily marketable equity securities of companies whose principal activities 
include ownership, management, development, construction, or sale of residential, commercial or industrial 
real estate. The Portfolio will principally invest in equity securities of companies in certain real 
estate investment trusts (&#x201c;REITs&#x201d;) and companies engaged in residential construction and 
firms, except partnerships, whose principal business is to develop commercial property. The Portfolio 
invests in companies of all sizes. A company&#x2019;s market capitalization is the number of its shares 
outstanding times its price per share. Under a market capitalization weighted approach, companies with 
higher market capitalizations generally represent a larger proportion of the Portfolio than companies 
with relatively lower market capitalizations. The Advisor may adjust the representation in the Portfolio 
of an eligible company, or exclude a company, after considering such factors as free float, price momentum, 
short-run reversals, trading strategies, liquidity, size, relative price, profitability, and other factors 
that the Advisor determines to be appropriate. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the DFA Real Estate Securities 
Portfolio&#x2019;s net assets will be invested in securities of companies in the real estate industry. 
The Portfolio concentrates (i.e., invests more than 25% of its net assets) its investments in securities 
of companies in the real estate industry. The Portfolio generally considers a company to be principally 
engaged in the real estate industry if the company (i) derives at least 50% of its revenue or profits 
from the ownership, management, development, construction, or sale of residential, commercial, industrial, 
or other real estate; (ii) has at least 50% of the value of its assets invested in residential, commercial, 
industrial, or other real estate; or (iii) is organized as a REIT or REIT-like entity. REITs and REIT-like 
entities are types of real estate companies that pool investors&#x2019; funds for investment primarily 
in income producing real estate or real estate related loans or interests. The Portfolio will make equity 
investments in securities listed on a securities exchange in the United States that is deemed appropriate 
by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Real Estate Securities Portfolio may purchase or sell 
futures contracts and options on futures contracts for U.S. equity securities and indices to increase 
or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA Real Estate Securities Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA Real Estate Securities Portfolio's ETF Class operates as an actively managed exchange-traded fund 
("ETF") and does not seek to replicate the performance of a specific index and may have a higher degree 
of portfolio turnover than passively managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_PrincipalRisks2_S000000949Summary24Member"
      id="ixv-22048">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x105x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RiskLoseMoneyMember_S000000949Summary24Member"
      id="ixv-273336">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RiskNotInsuredMember_S000000949Summary24Member"
      id="ixv-273337">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_EquityMarketRisk2_S000000949Summary24Member"
      id="ixv-22054">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_SmallandMid-CapCompanyRisk2_S000000949Summary24Member"
      id="ixv-22064">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small 
and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_RisksofConcentratingintheRealEstateIndustry2_S000000949Summary24Member"
      id="ixv-22069">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Concentrating 
in the Real Estate Industry:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that concentrates 
(i.e., invests more than 25% of its net assets) its investments in securities of companies in the real 
estate industry will be exposed to the general risks of direct real estate ownership. The value of securities 
in the real estate industry can be affected by changes in real estate values and rental income, property 
taxes, and tax and regulatory requirements. Also, the value of securities in the real estate industry 
may decline with changes in interest rates. Investing in REITs and REIT-like entities involves certain 
unique risks in addition to those risks associated with investing in the real estate industry in general. 
REITs and REIT-like entities are dependent upon management skill, may not be diversified, and are subject 
to heavy cash flow dependency and self-liquidation. REITs and REIT-like entities also are subject to 
the possibility of failing to qualify for tax free pass-through of income. Also, because REITs and REIT-like 
entities typically are invested in a limited number of projects or in a particular market segment, these 
entities are more susceptible to adverse developments affecting a single project or market segment than 
more broadly diversified investments. The performance of a fund may be materially different from the 
broad equity market.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_DerivativesRisk2_S000000949Summary24Member"
      id="ixv-22074">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as futures contracts, and options thereon, whose value is derived from 
that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_SecuritiesLendingRisk2_S000000949Summary24Member"
      id="ixv-22078">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_OperationalRisk2_S000000949Summary24Member"
      id="ixv-22082">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_CyberSecurityRisk2_S000000949Summary24Member"
      id="ixv-22087">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_MarketTradingRisk2_S000000949Summary24Member"
      id="ixv-22093">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;liquidity in the markets for the fund&#x2019;s portfolio holdings, which may cause 
a significant variance in the market price of the ETF Class shares and their underlying value as well 
as an increase in the ETF Class shares&#x2019; bid-ask spread.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_PremiumDiscountRisk2_S000000949Summary24Member"
      id="ixv-22103">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares 
and the value of your investment may fluctuate. Disruptions to creations and redemptions or the market 
price of a fund&#x2019;s holdings, the existence of extreme market volatility or potential lack of an 
active trading market for shares may widen bid-ask spreads and result in shares trading at a significant 
premium or discount to NAV. If a shareholder purchases shares at a time when the market price is at a 
premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder 
may sustain losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273338"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-22113">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273339">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273340"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273341">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273342">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273343">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273344">DFA Real 
Estate Securities Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="ixv-273345">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="ixv-273346">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1930_"
      unitRef="pure">0.1788</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="ixv-273348">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1933_"
      unitRef="pure">-0.2306</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="ixv-273350">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="ixv-273351">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="_1937_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1938_"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1939_"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1940_"
      unitRef="pure">0.0554</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="_1941_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1942_"
      unitRef="pure">0.0058</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1943_"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1944_"
      unitRef="pure">0.0425</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      id="_1945_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1946_"
      unitRef="pure">0.0111</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1947_"
      unitRef="pure">0.0347</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002700Member_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1948_"
      unitRef="pure">0.0390</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_DowJonesUSSelectREITIndex369_S000000949Member_S000000949Summary24Member"
      id="_1949_">Dow Jones U.S. Select REIT Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000949Member_S000000949Summary24Member"
      id="_1950_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_DowJonesUSSelectREITIndex370_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1951_"
      unitRef="pure">0.0367</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_DowJonesUSSelectREITIndex370_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1952_"
      unitRef="pure">0.0665</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_DowJonesUSSelectREITIndex370_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1953_"
      unitRef="pure">0.0481</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index371_S000000949Member_S000000949Summary24Member"
      id="_1954_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index372_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1956_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index372_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1957_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index372_S000000949Member_S000000949Summary24Member"
      decimals="INF"
      id="_1958_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273373"> U.S. Large Cap Growth Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273374"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22485">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the U.S. Large Cap Growth Portfolio 
(the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273375"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22492">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may also incur usual and customary brokerage commissions when buying or selling the ETF Class shares 
of the Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273376">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273377">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273378"
      unitRef="pure">0.0015</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_1967_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273380"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_1969_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273382"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273383">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22585">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273384"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273385"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273386"
      unitRef="usd">65</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273387"
      unitRef="usd">65</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273388"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273389"
      unitRef="usd">115</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273390"
      unitRef="usd">115</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273391"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273392"
      unitRef="usd">265</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268969Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273393"
      unitRef="usd">265</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273394">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22612">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="ixv-273395"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273396"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22627">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Large Cap Growth Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth Portfolio is designed to purchase a broad and diverse 
group of readily marketable securities of large U.S. companies that the Advisor determines to have high 
profitability and high relative prices compared to other U.S. large cap companies at the time of purchase. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the Portfolio than companies with relatively lower market capitalizations. 
Securities are considered higher relative price (growth) stocks primarily because a company&#x2019;s shares 
have a high price in relation to their book value (a &#x201c;price to book ratio&#x201d;) when compared 
with other U.S. large cap companies. The Advisor may overweight certain stocks, including smaller companies, 
lower relative price stocks, and/or higher profitability stocks within the large-cap growth segment of 
the U.S. market. In assessing relative price, the Advisor may consider additional factors such as price 
to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price or profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Large Cap Growth Portfolio will invest 
at least 80% of its net assets in securities of large cap U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. As of the date of this Prospectus, for purposes of the Portfolio, 
the Advisor considers large cap companies to be companies whose market capitalizations are generally 
in the highest 90% of total market capitalization or companies whose market capitalizations are larger 
than or equal to the 1,000&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th &lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;largest U.S. company, whichever 
results in the higher market capitalization break. Total market capitalization is based on the market 
capitalization of eligible U.S. operating companies listed on a securities exchange in the United States 
that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization guidelines 
described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a large cap company would be $16,768 million or above. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Large Cap Growth Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth Portfolio may lend its portfolio 
securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Growth Portfolio's 
ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek to replicate 
the performance of a specific index and may have a higher degree of portfolio turnover than passively 
managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_PrincipalRisks2_S000039438Summary25Member"
      id="ixv-22639">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x115x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_RiskLoseMoneyMember_S000039438Summary25Member"
      id="ixv-273397">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_RiskNotInsuredMember_S000039438Summary25Member"
      id="ixv-273398">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_EquityMarketRisk2_S000039438Summary25Member"
      id="ixv-22650">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_GrowthInvestmentRisk2_S000039438Summary25Member"
      id="ixv-22655">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
the Portfolio to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_ProfitabilityInvestmentRisk2_S000039438Summary25Member"
      id="ixv-22660">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_DerivativesRisk2_S000039438Summary25Member"
      id="ixv-22664">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_SecuritiesLendingRisk2_S000039438Summary25Member"
      id="ixv-22668">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_OperationalRisk2_S000039438Summary25Member"
      id="ixv-22672">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_CyberSecurityRisk2_S000039438Summary25Member"
      id="ixv-22677">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_MarketTradingRisk2_S000039438Summary25Member"
      id="ixv-22683">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class shares or to submit purchase or redemption orders for creation 
units, which may widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. 
There can be no assurance that the requirements of the listing exchange necessary to maintain the listing 
of the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_PremiumDiscountRisk2_S000039438Summary25Member"
      id="ixv-22688">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value 
of your investment may fluctuate. Disruptions to creations and redemptions or the market price of a fund&#x2019;s 
holdings, the existence of extreme market volatility or potential lack of an active trading market for 
shares may widen bid-ask spreads and &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;result in shares trading at a significant premium or discount to NAV. If a shareholder 
purchases shares at a time when the market price is at a premium to the NAV or sells shares at a time 
when the market price is at a discount to the NAV, the shareholder may sustain losses.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273400"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-22703">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273401">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273402"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273403">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273404">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273405">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273406">U.S. 
Large Cap Growth Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="ixv-273407">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="ixv-273408">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2022_"
      unitRef="pure">0.2145</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="ixv-273410">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2025_"
      unitRef="pure">-0.1669</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="ixv-273412">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="ixv-273413">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="_2029_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2030_"
      unitRef="pure">0.1262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2031_"
      unitRef="pure">0.1329</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2032_"
      unitRef="pure">0.1501</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="_2033_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2034_"
      unitRef="pure">0.1237</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2035_"
      unitRef="pure">0.1228</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2036_"
      unitRef="pure">0.1417</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      id="_2037_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2038_"
      unitRef="pure">0.0763</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2039_"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121545Member_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2040_"
      unitRef="pure">0.1241</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000GrowthIndex373_S000039438Member_S000039438Summary25Member"
      id="_2041_">Russell 1000&#xae; 
Growth Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039438Member_S000039438Summary25Member"
      id="_2042_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000GrowthIndex374_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2043_"
      unitRef="pure">0.1856</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000GrowthIndex374_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2044_"
      unitRef="pure">0.1532</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000GrowthIndex374_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2045_"
      unitRef="pure">0.1813</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index375_S000039438Member_S000039438Summary25Member"
      id="_2046_">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index376_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2048_"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index376_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2049_"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index376_S000039438Member_S000039438Summary25Member"
      decimals="INF"
      id="_2050_"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273435"> U.S. Small Cap Growth Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273436"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23078">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the U.S. Small Cap Growth Portfolio 
(the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273437"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23085">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell ETF Class shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may also incur usual and customary brokerage commissions when buying or selling the ETF Class shares 
of the Portfolio, which are not reflected in the table or Example that follows.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273438">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273439">Annual Fund Operating Expenses 
(expenses that you pay each                       year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273440"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2059_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273442"
      unitRef="pure">0.0033</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2061_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273444"
      unitRef="pure">0.0032</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273445">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23178">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the 
cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF 
Class shares for the time periods indicated. The Example also assumes that your investment has a 5% return 
each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio's 
ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares that result from the contractual 
expense waiver in the first year only. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273446"
      unitRef="usd">33</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273447"
      unitRef="usd">33</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273448"
      unitRef="usd">105</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273449"
      unitRef="usd">105</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273450"
      unitRef="usd">184</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273451"
      unitRef="usd">184</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273452"
      unitRef="usd">184</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273453"
      unitRef="usd">417</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273454"
      unitRef="usd">417</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000268970Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273455"
      unitRef="usd">417</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273456">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23205">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;18%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="ixv-273457"
      unitRef="pure">0.18</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273458"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23220">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Small Cap Growth Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns 
identified by the Advisor&#x2019;s research, while balancing risk through broad diversification across 
companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth Portfolio, using a market capitalization weighted approach, 
is designed to purchase a broad and diverse group of readily marketable securities of U.S. small cap 
companies that the Advisor determines to have high profitability and high relative prices compared to 
other U.S. small cap companies at the time of purchase. A company&#x2019;s market capitalization is the 
number of its shares outstanding times its price per share. Under a market capitalization weighted approach, 
companies with higher market capitalizations generally represent a larger proportion of the Portfolio 
than companies with relatively lower market capitalizations. Securities are considered higher relative 
price (growth) stocks primarily because a company&#x2019;s shares have a high price in relation to their 
book value (a &#x201c;price to book ratio&#x201d;) when compared with other U.S. small cap companies. The 
Portfolio may emphasize certain stocks, including smaller capitalization companies, lower relative price 
stocks, and/or higher profitability stocks as compared to their representation in the small-cap growth 
segment of the U.S. market. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal 
circumstances, the U.S. Small Cap Growth Portfolio will invest at least 80% of its net assets in securities 
of small cap U.S. companies. The Advisor generally defines a U.S. company as one that is listed and principally 
traded on a securities exchange in the United States that is deemed appropriate by the Advisor. As of 
the date of this Prospectus, for purposes of the Portfolio, the Advisor considers small cap companies 
to be companies whose market capitalizations are generally in the lowest 10% of total market capitalization 
or companies whose market capitalizations are smaller than the 1,000&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;th 
&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;largest U.S. company, whichever results in the higher market capitalization break. 
Total market capitalization is based on the market capitalization of eligible U.S. operating companies 
listed on a securities exchange in the United States that is deemed appropriate by the Advisor. Under 
the Advisor&#x2019;s market capitalization guidelines described above, based on market capitalization 
data as of December 31, 2025, the market capitalization of a small cap company would be below $16,768 
million. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Small Cap Growth Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth 
Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth Portfolio may lend its portfolio 
securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Small Cap Growth Portfolio's 
ETF Class operates as an actively managed exchange-traded fund ("ETF") and does not seek to replicate 
the performance of a specific index and may have a higher degree of portfolio turnover than passively 
managed index ETFs.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_PrincipalRisks2_S000039439Summary26Member"
      id="ixv-23235">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x125x3"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_RiskLoseMoneyMember_S000039439Summary26Member"
      id="ixv-273459">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_RiskNotInsuredMember_S000039439Summary26Member"
      id="ixv-273460">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_EquityMarketRisk2_S000039439Summary26Member"
      id="ixv-23241">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_SmallCompanyRisk2_S000039439Summary26Member"
      id="ixv-23246">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_GrowthInvestmentRisk2_S000039439Summary26Member"
      id="ixv-23250">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause the Portfolio to at times underperform 
equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_ProfitabilityInvestmentRisk2_S000039439Summary26Member"
      id="ixv-23255">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_DerivativesRisk2_S000039439Summary26Member"
      id="ixv-23259">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_SecuritiesLendingRisk2_S000039439Summary26Member"
      id="ixv-23263">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_OperationalRisk2_S000039439Summary26Member"
      id="ixv-23267">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_CyberSecurityRisk2_S000039439Summary26Member"
      id="ixv-23272">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The following is a description of additional principal risks 
of investing in the ETF Class shares of the Portfolio, due to the shares being listed and traded on a 
national securities exchange.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_MarketTradingRisk2_S000039439Summary26Member"
      id="ixv-23278">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Trading 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Active trading markets for the ETF Class shares may not be 
developed or maintained by market makers or authorized participants. Authorized participants are not 
obligated to make a market in the ETF Class &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;shares or to submit purchase or redemption orders for creation units, which may 
widen bid-ask spreads. Trading in shares on an exchange may be halted in certain circumstances. There 
can be no assurance that the requirements of the listing exchange necessary to maintain the listing of 
the ETF Class shares will continue to be met. Additionally, in stressed market conditions, the market 
for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets 
for the fund&#x2019;s portfolio holdings, which may cause a significant variance in the market price of 
the ETF Class shares and their underlying value as well as an increase in the ETF Class shares&#x2019; 
bid-ask spread.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_PremiumDiscountRisk2_S000039439Summary26Member"
      id="ixv-23288">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Premium/Discount Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The net asset value (&#x201c;NAV&#x201d;) of the ETF Class shares and the value 
of your investment may fluctuate. Disruptions to creations and redemptions or the market price of a fund&#x2019;s 
holdings, the existence of extreme market volatility or potential lack of an active trading market for 
shares may widen bid-ask spreads and result in shares trading at a significant premium or discount to 
NAV. If a shareholder purchases shares at a time when the market price is at a premium to the NAV or 
sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain 
losses.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273461"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-23298">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year. The table 
illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, 
both before and after taxes,&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;compare with those of a broad 
measure of market performance. The table also includes the performance of an additional index with a 
similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results. Updated performance information for the Portfolio can 
be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273462">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares 
of the Portfolio are a new class of shares for which performance information is not available, and therefore, 
for periods prior to the inception of the ETF Class shares, the bar chart and table show performance 
information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the 
Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from 
the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the 
changes in performance of the Institutional Class shares of the Portfolio from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273463"> The Portfolio&#x2019;s past performance (before and after 
taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273464">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273465">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273466">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273467">U.S. 
Small Cap Growth Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="ixv-273468">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="ixv-273469">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2115_"
      unitRef="pure">0.2716</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="ixv-273471">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2118_"
      unitRef="pure">-0.3033</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="ixv-273473">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="ixv-273474">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="_2122_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2123_"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2124_"
      unitRef="pure">0.0865</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2125_"
      unitRef="pure">0.1053</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="_2126_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2127_"
      unitRef="pure">0.0579</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2128_"
      unitRef="pure">0.0796</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2129_"
      unitRef="pure">0.0990</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      id="_2130_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2131_"
      unitRef="pure">0.0362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2132_"
      unitRef="pure">0.0671</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121546Member_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2133_"
      unitRef="pure">0.0854</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000GrowthIndex377_S000039439Member_S000039439Summary26Member"
      id="_2134_">Russell 2000&#xae; 
Growth Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039439Member_S000039439Summary26Member"
      id="_2135_">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000GrowthIndex378_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2136_"
      unitRef="pure">0.1301</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000GrowthIndex378_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2137_"
      unitRef="pure">0.0318</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000GrowthIndex378_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2138_"
      unitRef="pure">0.0957</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index379_S000039439Member_S000039439Summary26Member"
      id="_2139_">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index380_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2141_"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index380_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2142_"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index380_S000039439Member_S000039439Summary26Member"
      decimals="INF"
      id="_2143_"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273496"> Enhanced U.S. Large Company Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273497"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30029">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Enhanced U.S. Large Company Portfolio (the &#x201c;Portfolio&#x201d;) seeks, as its investment objective, to achieve 
a total return which exceeds the total return performance of the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index. Total return comprises income and capital appreciation.&lt;/span&gt;&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273498"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30040">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273499">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273500">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273501"
      unitRef="pure">0.0012</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273502"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273503"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="_2154_"
      unitRef="pure">-0.0003</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273505"
      unitRef="pure">0.0015</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273506">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30123">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273507"
      unitRef="usd">15</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273508"
      unitRef="usd">15</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273509"
      unitRef="usd">55</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273510"
      unitRef="usd">55</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273511"
      unitRef="usd">98</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273512"
      unitRef="usd">98</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273513"
      unitRef="usd">98</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273514"
      unitRef="usd">227</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273515"
      unitRef="usd">227</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273516"
      unitRef="usd">227</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273517">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30150">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;86%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273518"
      unitRef="pure">0.86</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273519"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30163">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Enhanced U.S. Large Company Portfolio seeks to outperform the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index primarily through investment in S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index futures and short-term fixed income obligations. The Portfolio may invest in all of the stocks 
represented in the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index, 
options on stock indices, stock index futures, options on stock index futures, swap agreements on stock 
indices and shares of investment companies, such as exchange-traded funds (ETFs) that invest in stocks 
represented in the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index 
or other similar stock indices. The Portfolio invests in fixed income obligations, which may include 
securities of foreign issuers. The Portfolio may, from time to time, also invest in options on stock 
indices, stock index futures, options on stock index futures and swap agreements based on indices other 
than, but similar to, the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index 
(such instruments whether or not based on the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index are hereinafter collectively referred to as &#x201c;Index Derivatives&#x201d;). The S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index comprises a broad and diverse group of stocks. For the Portfolio, Dimensional Fund Advisors LP 
(the &#x201c;Advisor&#x201d;) considers stocks that comprise the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Index to be those of large companies. Under normal circumstances, the Portfolio will invest at least 
80% of its net assets in short-term fixed income obligations that are overlaid by futures, swaps and 
other derivatives of the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index 
to create exposure to the performance of large U.S. companies or in securities of large U.S. companies 
directly. Alternatively, the Portfolio may invest at least 80% of its net assets directly in securities 
of large companies.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Enhanced U.S. Large Company Portfolio 
may invest all of its assets in Index Derivatives. Certain of these Index Derivatives may be considered 
speculative and may subject the Portfolio to additional risks. Assets of the Portfolio not invested in 
the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index or Index Derivatives 
may be invested in short-term fixed income obligations including: U.S. government obligations, U.S. government 
agency obligations, corporate debt obligations, bank obligations, commercial paper, repurchase agreements, 
money market funds, foreign government and agency obligations, supranational organization obligations, 
foreign issuer obligations and eurodollar obligations. The Portfolio&#x2019;s investment in fixed income obligations 
will be considered investment grade at the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global 
Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
The fixed income obligations purchased by the Portfolio will typically mature within three years or less 
from the date of settlement and the weighted average effective maturity of the fixed income obligations 
will be two years or less.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The effective maturity adjusts 
the stated final maturity of a fixed income security for an actual or expected event such as a call, 
put, tender, mandatory early redemption, pre-refunding, coupon or interest rate reset, or other similar 
event.  &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:12.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Enhanced U.S. Large Company Portfolio may use foreign 
currency forward contracts to hedge foreign currency risks or to transfer balances from one currency 
to another. The Portfolio uses index swap agreements and/or stock index futures to hedge against changes 
in securities prices. The Portfolio may purchase or sell futures contracts and options on futures contracts 
to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows 
from the Portfolio. Additionally, the Portfolio uses index swap agreements and stock index futures to 
attempt to achieve its investment objectives.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:12.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Enhanced U.S. Large 
Company Portfolio may lend its portfolio securities to generate additional income.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;About 
the S&amp;amp;P 500&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Index: The Standard &amp;amp; 
Poor&#x2019;s 500 Composite Stock Price Index&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&lt;sup&gt;&#xae;&lt;/sup&gt;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; is 
market capitalization weighted (adjusted for free float). Its performance is usually cyclical because 
it reflects periods when stock prices generally rise or fall. For information concerning S&amp;amp;P Global 
Ratings, a division of The McGraw Hill Companies (&#x201c;S&amp;amp;P&#x201d;), and disclaimers of S&amp;amp;P with respect 
to the Enhanced U.S. Large Company Portfolio, see &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;Standard &amp;amp; Poor&#x2019;s&#x2014;Information 
and Disclaimers.&#x201d;&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_PrincipalRisks2_S000000956Summary27Member"
      id="ixv-30213">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x4"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_RiskLoseMoneyMember_S000000956Summary27Member"
      id="ixv-273520">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_RiskNotInsuredMember_S000000956Summary27Member"
      id="ixv-273521">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_EquityMarketRisk2_S000000956Summary27Member"
      id="ixv-30219">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_ForeignSecuritiesandCurrenciesRisk2_S000000956Summary27Member"
      id="ixv-30229">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_ForeignGovernmentDebtRisk2_S000000956Summary27Member"
      id="ixv-30235">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_DerivativesRisk2_S000000956Summary27Member"
      id="ixv-30240">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as swaps, futures contracts, and options thereon, and foreign currency 
forward contracts, whose value is derived from that of other assets, rates or indices. Derivatives can 
be used for hedging (attempting to reduce risk by offsetting one investment position with another) or 
non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that 
a hedging strategy will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate 
gains or cause losses if the market moves in a manner different from that anticipated by a fund or if 
the cost of the derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally 
not possible to precisely match the foreign currency exposure of such foreign currency forward contracts 
to the value of the securities involved due to fluctuations in the market values of such securities and 
cash flows into and out of a fund between the date a foreign currency forward contract is entered into 
and the date it expires. The use of derivatives for non-hedging purposes may be considered to carry more 
risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed 
to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_SecuritiesLendingRisk2_S000000956Summary27Member"
      id="ixv-30244">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_InterestRateRisk2_S000000956Summary27Member"
      id="ixv-30248">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_CreditRisk2_S000000956Summary27Member"
      id="ixv-30256">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_IncomeRisk2_S000000956Summary27Member"
      id="ixv-30261">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_CallRisk2_S000000956Summary27Member"
      id="ixv-30266">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_LiquidityRisk2_S000000956Summary27Member"
      id="ixv-30271">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments at opportune 
prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by a 
fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market developments. 
Liquidity risk includes the risk that a fund will experience significant net redemptions at a time when 
it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities 
at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market 
turmoil or in situations where ownership of shares of a fund are concentrated in one or a few investors. 
Investments that are illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_OperationalRisk2_S000000956Summary27Member"
      id="ixv-30276">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various 
operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances 
at third parties. A fund and its advisor seek to reduce these operational risks through controls and 
procedures. However, measures that seek to reduce these operational risks through controls and procedures 
may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_CyberSecurityRisk2_S000000956Summary27Member"
      id="ixv-30281">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273522"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-30291">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273523">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273524"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273525">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273526">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273527">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273528">Enhanced 
U.S. Large Company Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273529">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273530">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273531"
      unitRef="pure">0.2261</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273532">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273533"
      unitRef="pure">-0.2118</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273534">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273535">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273536">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273537"
      unitRef="pure">0.1738</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273538"
      unitRef="pure">0.1285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273539"
      unitRef="pure">0.1404</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273540">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273541"
      unitRef="pure">0.1118</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273542"
      unitRef="pure">0.0866</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273543"
      unitRef="pure">0.1035</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      id="ixv-273544">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273545"
      unitRef="pure">0.1164</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273546"
      unitRef="pure">0.0859</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002707Member_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273547"
      unitRef="pure">0.0995</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SP500Index381_S000000956Member_S000000956Summary27Member"
      id="_2229_">S&amp;P 500&#xae; 
Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000956Member_S000000956Summary27Member"
      id="ixv-273549">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SP500Index382_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273550"
      unitRef="pure">0.1788</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SP500Index382_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273551"
      unitRef="pure">0.1442</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SP500Index382_S000000956Member_S000000956Summary27Member"
      decimals="INF"
      id="ixv-273552"
      unitRef="pure">0.1482</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273553"> U.S. Large Cap Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273554"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32129">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Large Cap Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation. The Portfolio is a Feeder Portfolio and pursues its objective by investing substantially 
all of its assets in its corresponding Master Fund, The U.S. Large Cap Value Series (the &#x201c;U.S. Value 
Series&#x201d; or the &#x201c;Series&#x201d;) of The DFA Investment Trust Company (the &#x201c;Trust&#x201d;), which has the same 
investment objective and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273555"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32136">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273556">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273557">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="_2241_"
      unitRef="pure">0.0029</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="_2242_"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="_2243_"
      unitRef="pure">0.0032</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="_2244_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="_2245_"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273563">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32218">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher or 
lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273564"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273565"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273566"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273567"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273568"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273569"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273570"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273571"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273572"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273573"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273574">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32245">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). 
A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when 
fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating 
Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273575"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273576"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32260">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Large Cap Value Portfolio pursues 
its investment objective by investing substantially all of its assets in the U.S. Value Series. To achieve 
the Portfolio&#x2019;s and the Series&#x2019; investment objectives, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Series&#x2019; design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Value Series is designed to purchase a broad and 
diverse group of readily marketable securities of large U.S. companies that the Advisor determines to 
be lower relative price stocks. A company&#x2019;s market capitalization is the number of its shares outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of the Series than companies with relatively 
lower market capitalizations. The Advisor may overweight certain stocks, including smaller companies, 
lower relative price stocks, and/or higher profitability stocks within the large-cap value segment of 
the U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily 
because it has a low price in relation to its book value. In assessing relative price, the Advisor may 
consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer 
is considered to have high profitability because it has high earnings or profits from operations in relation 
to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability 
are subject to change from time to time.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the U.S. Value Series will invest at least 80% of its net assets in securities 
of large cap U.S. companies. The Advisor generally defines a U.S. company as one that is listed and principally 
traded on a securities exchange in the United States that is deemed appropriate by the Advisor. As of 
the date of this Prospectus, for purposes of the Series, the Advisor considers large cap companies to 
be companies whose market capitalizations are generally in the highest 90% of total market capitalization 
or companies whose market capitalizations are larger than or equal to the 1,000th largest U.S. company, 
whichever results in the higher market capitalization break. Total market capitalization is based on 
the market capitalization of eligible U.S. operating companies listed on a securities exchange in the 
United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization 
guidelines described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a large cap company would be $16,768 million or above. This threshold will change due to market conditions.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Value Series&#x2019; exposure to an eligible company, or exclude 
a company, based on shorter-term considerations, such as a company&#x2019;s price momentum and short-run reversals. 
In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Serif; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Value Series and the U.S. Large 
Cap Value Portfolio each may purchase or sell futures contracts and options on futures contracts for 
U.S. equity securities and indices to increase or decrease equity market exposure based on actual or 
expected cash inflows to or outflows from the Series or Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Value Series may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_PrincipalRisks2_S000000988Summary28Member"
      id="ixv-32272">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x5"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_RiskLoseMoneyMember_S000000988Summary28Member"
      id="ixv-273577">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_RiskNotInsuredMember_S000000988Summary28Member"
      id="ixv-273578">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_EquityMarketRisk2_S000000988Summary28Member"
      id="ixv-32278">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_ValueInvestmentRisk2_S000000988Summary28Member"
      id="ixv-32288">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_ProfitabilityInvestmentRisk2_S000000988Summary28Member"
      id="ixv-32293">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_DerivativesRisk2_S000000988Summary28Member"
      id="ixv-32297">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_SecuritiesLendingRisk2_S000000988Summary28Member"
      id="ixv-32301">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_OperationalRisk2_S000000988Summary28Member"
      id="ixv-32305">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_CyberSecurityRisk2_S000000988Summary28Member"
      id="ixv-32310">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology and information 
systems may expose the fund to potential risks linked to cyber security breaches of those technological 
or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party 
to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its 
service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273579"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-32320">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273580">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273581"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273582">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273583">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273584">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273585">U.S. 
Large Cap Value Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273586">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273587">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273588"
      unitRef="pure">0.1852</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273589">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273590"
      unitRef="pure">-0.3152</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273591">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273592">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273593">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273594"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273595"
      unitRef="pure">0.1203</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273596"
      unitRef="pure">0.1064</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273597">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273598"
      unitRef="pure">0.1585</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273599"
      unitRef="pure">0.1117</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273600"
      unitRef="pure">0.0958</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      id="ixv-273601">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273602"
      unitRef="pure">0.1000</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273603"
      unitRef="pure">0.0943</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002739Member_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273604"
      unitRef="pure">0.0846</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000ValueIndex383_S000000988Member_S000000988Summary28Member"
      id="ixv-273605">Russell 1000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000988Member_S000000988Summary28Member"
      id="ixv-273606">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000ValueIndex384_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273607"
      unitRef="pure">0.1591</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000ValueIndex384_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273608"
      unitRef="pure">0.1133</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000ValueIndex384_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273609"
      unitRef="pure">0.1053</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index385_S000000988Member_S000000988Summary28Member"
      id="ixv-273610">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index386_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273611"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index386_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273612"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index386_S000000988Member_S000000988Summary28Member"
      decimals="INF"
      id="ixv-273613"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273614"> Large Cap International Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273615"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38199">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Large Cap International Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273616"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38206">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273617">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273618">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273619"
      unitRef="pure">0.0014</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273620"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273621"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273622">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38265">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273623"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273624"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273625"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273626"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273627"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273628"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273629"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273630"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273631"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273632"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273633">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38292">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273634"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273635"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38302">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the Large Cap International 
Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Large Cap International Portfolio is designed to purchase 
securities of large non-U.S. companies in countries or regions designated by the Advisor as an approved 
market for investment. The Advisor may consider a company&#x2019;s &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;size, relative price, and/or profitability relative to other eligible companies 
when making investment decisions for the Portfolio. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time. The Advisor will seek to set 
country weights based on the relative adjusted market capitalizations of eligible large companies within 
each eligible country.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Large Cap International Portfolio intends to purchase 
securities of large non-U.S. companies associated with developed market countries that the Advisor has 
designated as approved markets. As a non-fundamental policy, under normal circumstances, the Portfolio 
will invest at least 80% of its net assets in securities of large cap companies in the particular markets 
in which the Portfolio invests. The Advisor determines the minimum market capitalization of a large company 
with respect to each country or region in which the Portfolio invests. Based on market capitalization 
data as of December 31, 2025, for the Portfolio, the market capitalization of a large company in any 
country or region in which the Portfolio invests would be $1,852 million or above. This threshold will 
change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce 
the Large Cap International Portfolio&#x2019;s exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum and short-run reversals. 
In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Large Cap International Portfolio may gain exposure to 
companies in an approved market by purchasing equity securities in the form of depositary receipts, which 
may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio also may purchase 
or sell futures contracts and options on futures contracts for foreign or U.S. equity securities and 
indices to increase or decrease equity market exposure based on actual or expected cash inflows to or 
outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated in 
foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Large Cap International Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_PrincipalRisks2_S000000985Summary31Member"
      id="ixv-38314">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_RiskLoseMoneyMember_S000000985Summary31Member"
      id="ixv-273636">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_RiskNotInsuredMember_S000000985Summary31Member"
      id="ixv-273637">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_EquityMarketRisk2_S000000985Summary31Member"
      id="ixv-38320">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_ForeignSecuritiesandCurrenciesRisk2_S000000985Summary31Member"
      id="ixv-38325">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;obtaining judgments with respect to foreign investments in foreign courts than 
with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_GeographicFocusRisk2_S000000985Summary31Member"
      id="ixv-38337">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_ProfitabilityInvestmentRisk2_S000000985Summary31Member"
      id="ixv-38342">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_ValueInvestmentRisk2_S000000985Summary31Member"
      id="ixv-38346">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_DerivativesRisk2_S000000985Summary31Member"
      id="ixv-38351">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_SecuritiesLendingRisk2_S000000985Summary31Member"
      id="ixv-38355">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_OperationalRisk2_S000000985Summary31Member"
      id="ixv-38359">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_CyberSecurityRisk2_S000000985Summary31Member"
      id="ixv-38364">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273638"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-38374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;taxes, compare with those of a broad measure of market performance. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273639">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273640"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273641">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273642">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273643">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273644">Large 
Cap International Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273645">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273646">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273647"
      unitRef="pure">0.1727</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273648">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273649"
      unitRef="pure">-0.2443</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273650">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273651">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273652">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273653"
      unitRef="pure">0.3391</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273654"
      unitRef="pure">0.1012</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273655"
      unitRef="pure">0.0902</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273656">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273657"
      unitRef="pure">0.3286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273658"
      unitRef="pure">0.0933</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273659"
      unitRef="pure">0.0829</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      id="ixv-273660">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273661"
      unitRef="pure">0.2070</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273662"
      unitRef="pure">0.0788</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002736Member_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273663"
      unitRef="pure">0.0720</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends395_S000000985Member_S000000985Summary31Member"
      id="ixv-273664">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000985Member_S000000985Summary31Member"
      id="ixv-273665">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends396_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273666"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends396_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273667"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends396_S000000985Member_S000000985Summary31Member"
      decimals="INF"
      id="ixv-273668"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273669"> International Core Equity 
2 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273670"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39189">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Core Equity 2 Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273671"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39196">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273672">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273673">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273674"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273675"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273676"
      unitRef="pure">0.0023</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273677">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39255">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273678"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273679"
      unitRef="usd">24</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273680"
      unitRef="usd">74</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273681"
      unitRef="usd">74</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273682"
      unitRef="usd">130</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273683"
      unitRef="usd">130</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273684"
      unitRef="usd">130</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273685"
      unitRef="usd">293</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273686"
      unitRef="usd">293</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273687"
      unitRef="usd">293</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273688">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39282">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273689"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273690"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39292">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Core Equity 
2 Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Core Equity 2 Portfolio is designed to purchase 
a broad and diverse group of equity securities within a market capitalization weighted universe (e.g., 
the larger the company, the greater the proportion of the universe it represents) of non-U.S. companies 
associated with developed markets that have been authorized for &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investment by the Advisor&#x2019;s Investment Committee (the &#x201c;International 
Universe&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully increased exposure 
to smaller capitalization, lower relative price, and higher profitability companies as compared to their 
representation in the International Universe. The Portfolio&#x2019;s meaningfully increased exposure to 
smaller capitalization, lower relative price, and higher profitability companies may be achieved by decreasing 
the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower 
profitability companies relative to their weight in the International Universe. An equity issuer is considered 
to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation 
to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Core 
Equity 2 Portfolio intends to purchase securities of companies associated with developed market countries 
that the Advisor has designated as approved markets. As a non-fundamental policy, under normal circumstances, 
the Portfolio will invest at least 80% of its net assets in equity securities. The Advisor determines 
company size on a country or region specific basis and based primarily on market capitalization. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the International Core Equity 2 Portfolio&#x2019;s exposure to an 
eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Core Equity 
2 Portfolio may gain exposure to companies associated with approved markets by purchasing equity securities 
in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile 
country. The Portfolio also may purchase or sell futures contracts and options on futures contracts for 
foreign or U.S. equity securities and indices to increase or decrease equity market exposure based on 
actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Core Equity 2 Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_PrincipalRisks2_S000000983Summary33Member"
      id="ixv-39304">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x25x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_RiskLoseMoneyMember_S000000983Summary33Member"
      id="ixv-273691">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_RiskNotInsuredMember_S000000983Summary33Member"
      id="ixv-273692">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_EquityMarketRisk2_S000000983Summary33Member"
      id="ixv-39310">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_ForeignSecuritiesandCurrenciesRisk2_S000000983Summary33Member"
      id="ixv-39315">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;issuers. A fund may have greater difficulty voting proxies, exercising shareholder 
rights, securing dividends and/or interest and obtaining information regarding corporate actions on a 
timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments in 
foreign courts than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are 
generally subject to the same risks as the foreign securities that they evidence or into which they may 
be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored 
or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_GeographicFocusRisk2_S000000983Summary33Member"
      id="ixv-39327">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_SmallandMid-CapCompanyRisk2_S000000983Summary33Member"
      id="ixv-39332">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_ProfitabilityInvestmentRisk2_S000000983Summary33Member"
      id="ixv-39337">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_ValueInvestmentRisk2_S000000983Summary33Member"
      id="ixv-39341">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_DerivativesRisk2_S000000983Summary33Member"
      id="ixv-39346">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_SecuritiesLendingRisk2_S000000983Summary33Member"
      id="ixv-39350">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_OperationalRisk2_S000000983Summary33Member"
      id="ixv-39354">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_CyberSecurityRisk2_S000000983Summary33Member"
      id="ixv-39359">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;information, customer data, or fund assets, or cause the fund and/or its service 
providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273693"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-39374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273694">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273695"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273696">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273697">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273698">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273699">International 
Core Equity 2 Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273700">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273701">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273702"
      unitRef="pure">0.1870</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273703">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273704"
      unitRef="pure">-0.2764</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273705">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273706">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273707">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273708"
      unitRef="pure">0.3615</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273709"
      unitRef="pure">0.1038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273710"
      unitRef="pure">0.0912</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273711">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273712"
      unitRef="pure">0.3503</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273713"
      unitRef="pure">0.0956</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273714"
      unitRef="pure">0.0838</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      id="ixv-273715">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273716"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273717"
      unitRef="pure">0.0808</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002734Member_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273718"
      unitRef="pure">0.0727</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3101_S000000983Member_S000000983Summary33Member"
      id="ixv-273719">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000983Member_S000000983Summary33Member"
      id="ixv-273720">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3102_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273721"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3102_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273722"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3102_S000000983Member_S000000983Summary33Member"
      decimals="INF"
      id="ixv-273723"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273724"> Global Small Company Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273725"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39680">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Global Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273726"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39687">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273727">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273728">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273729"
      unitRef="pure">0.0035</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273730"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273731"
      unitRef="pure">0.0022</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273732"
      unitRef="pure">0.0064</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2506_"
      unitRef="pure">-0.0022</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273734"
      unitRef="pure">0.0042</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273735">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39775">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273736"
      unitRef="usd">43</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273737"
      unitRef="usd">43</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273738"
      unitRef="usd">183</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273739"
      unitRef="usd">183</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273740"
      unitRef="usd">335</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273741"
      unitRef="usd">335</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273742"
      unitRef="usd">335</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273743"
      unitRef="usd">777</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273744"
      unitRef="usd">777</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273745"
      unitRef="usd">777</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273746">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39802">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; based on the weighted 
average portfolio turnover ratios of each of the Portfolio's underlying investments. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273747"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273748"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39815">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Small Company Portfolio is a &#x201c;fund of funds,&#x201d; which means the Portfolio generally 
allocates its assets among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;), although it has the ability to invest directly in securities and derivatives. To achieve 
the Portfolio&#x2019;s and the Underlying Funds&#x2019; investment objectives, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
and the Underlying Funds&#x2019; designs emphasize long-term drivers of expected returns identified by 
the Advisor&#x2019;s research, while balancing risk through broad diversification across companies, sectors, 
and countries. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Small Company Portfolio is designed to provide investors with access to securities portfolios 
consisting of a broad range of equity securities of primarily small companies in developed and emerging 
markets. The Portfolio pursues its investment objective by allocating substantially all of its assets 
among the following Underlying Funds: The Asia Pacific Small Company Series, The Canadian Small Company 
Series, The Continental Small Company Series, The Emerging Markets Small Cap Series, The Japanese Small 
Company Series, The United Kingdom Small Company Series (each a series of The DFA Investment Trust Company), 
and U.S. Small Cap Portfolio (a series of DFA Investment Dimensions Group Inc.).&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;When 
deciding allocations to the Underlying Funds, the Portfolio takes into account, among other factors, 
the aggregate market capitalizations and adjustments for free float of the eligible universe of securities 
within each region. Periodically, the Advisor will review the allocations for the Portfolio in each Underlying 
Fund and may adjust allocations to the Underlying Funds or may add or remove Underlying Funds in the 
Portfolio without notice to shareholders. Certain Underlying Funds invest in small companies using a 
market capitalization weighted approach in each country or region designated by the Advisor as an approved 
market for investment. A company&#x2019;s market capitalization is the number of its shares outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of an Underlying Fund than companies with relatively 
lower market capitalizations. The Portfolio and Underlying Funds may emphasize certain stocks, including 
smaller capitalization companies, lower relative price stocks, and/or higher profitability stocks as 
compared to their representation in the countries and/or regions in which the Portfolio and/or Underlying 
Funds are authorized to invest. An equity issuer is considered to have a low relative price (i.e., a 
value stock) primarily because it has a low price in relation to its book value. In assessing relative 
price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. 
An equity issuer is considered to have high profitability because it has high earnings or profits from 
operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative 
price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Small Company 
Portfolio, directly or indirectly through its investment in the Underlying Funds, intends to invest its 
assets to gain exposure to at least three different countries, including the United States. As of the 
date of the Prospectus, the Portfolio, directly or indirectly through its investment in the Underlying 
Funds, invests approximately 62% of its net assets in U.S. companies. This percentage will change due 
to market conditions.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
Global Small Company Portfolio, directly or through its investments in the Underlying Funds, will invest 
at least 80% of its net assets in securities of small companies. The Advisor determines the maximum market 
capitalization of a small company with respect to each country in which the Portfolio or Underlying Fund 
invests. In the countries or regions authorized for investment, the Advisor first ranks eligible companies 
listed on selected exchanges based on the companies&#x2019; market capitalizations. The Advisor then determines 
the universe of eligible stocks by defining the maximum market capitalization of a small company that 
may be purchased by the Portfolio or Underlying Fund with respect to each country or region. Based on 
market capitalization data as of December 31, 2025, for the Portfolio, the market capitalization of a 
small company in any country in which the Portfolio or its Underlying Funds invests would be below $16,226 
million. This threshold will vary by country or region. For example, based on market capitalization data 
as of December 31, 2025, the Advisor would consider a small company in Switzerland to have a market capitalization 
below $16,226 million, a small company in the United States to have a market capitalization below $11,212 
million, a small company in Norway to have a market capitalization below $1,934 million, and a small 
company in Japan to have a market capitalization below $3,311 million. These thresholds will change due 
to market conditions.&lt;/p&gt;
&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Global Small Company Portfolio&#x2019;s 
and/or Underlying Funds&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term 
considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. 
In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent 
changes in assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s 
investment characteristics are subject to change from time to time. In addition, the Advisor seeks to 
reduce trading costs using a flexible trading approach that looks for opportunities to participate in 
the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Small Company Portfolio and each Underlying Fund may invest in affiliated and unaffiliated registered 
and unregistered money market funds to manage its cash pending investment in other securities or to maintain 
liquidity for the payment of redemptions or other purposes. Investments in money market funds may involve 
a duplication of certain fees and expenses.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Small Company Portfolio 
and each Underlying Fund may gain exposure to companies associated with approved markets by purchasing 
equity securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio and each Underlying Fund may purchase or sell futures contracts and options 
on futures contracts for equity securities and indices of its approved markets or other equity market 
securities or indices, including those of the United States, to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio or Underlying Fund. Because 
many of the Portfolio&#x2019;s and certain Underlying Funds&#x2019; investments may be denominated in foreign 
currencies, the Portfolio and certain Underlying Funds may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities 
or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Small Company 
Portfolio and Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
summary of the investment strategies and policies of the Underlying Funds in which the Global Small Company 
Portfolio invests as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus 
in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_PrincipalRisks2_S000055975Summary34Member"
      id="ixv-39832">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x35x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_RiskLoseMoneyMember_S000055975Summary34Member"
      id="ixv-273749">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_RiskNotInsuredMember_S000055975Summary34Member"
      id="ixv-273750">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_FundofFundsRisk2_S000055975Summary34Member"
      id="ixv-39838">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_EquityMarketRisk2_S000055975Summary34Member"
      id="ixv-39843">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_ForeignSecuritiesandCurrenciesRisk2_S000055975Summary34Member"
      id="ixv-39848">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;value against the U.S. dollar or that a foreign government will convert, or be 
forced to convert, its currency to another currency, changing its value against the U.S. dollar). The 
Underlying Funds do not hedge foreign currency risk.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject 
to the same risks as the foreign securities that they evidence or into which they may be converted. In 
addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_EmergingMarketsRisk2_S000055975Summary34Member"
      id="ixv-39860">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_SmallCompanyRisk2_S000055975Summary34Member"
      id="ixv-39867">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies 
are often less liquid than those of large companies and this could make it difficult to sell a small 
company security at a desired time or price. As a result, small company stocks may fluctuate relatively 
more in price. In general, smaller capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_ProfitabilityInvestmentRisk2_S000055975Summary34Member"
      id="ixv-39871">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_ValueInvestmentRisk2_S000055975Summary34Member"
      id="ixv-39875">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_DerivativesRisk2_S000055975Summary34Member"
      id="ixv-39880">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_SecuritiesLendingRisk2_S000055975Summary34Member"
      id="ixv-39884">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_OperationalRisk2_S000055975Summary34Member"
      id="ixv-39888">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside 
a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor 
seek to reduce these operational risks through controls and procedures. However, measures that seek to 
reduce these operational risks through controls and procedures may not address every possible risk and 
may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_CyberSecurityRisk2_S000055975Summary34Member"
      id="ixv-39898">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273751"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-39908">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273752">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273753"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273754">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273755">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273756">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273757">Global 
Small Company Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273758">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273759">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273760"
      unitRef="pure">0.2412</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273761">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273762"
      unitRef="pure">-0.3185</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273763">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273764">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273765">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273766"
      unitRef="pure">0.1576</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273767"
      unitRef="pure">0.0911</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170118_20251231_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2569_"
      unitRef="pure">0.0861</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273769">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273770"
      unitRef="pure">0.1530</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273771"
      unitRef="pure">0.0852</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170118_20251231_AfterTaxesOnDistributionsMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2573_"
      unitRef="pure">0.0810</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      id="ixv-273773">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273774"
      unitRef="pure">0.0964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273775"
      unitRef="pure">0.0714</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170118_20251231_AfterTaxesOnDistributionsAndSalesMember_C000176269Member_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2577_"
      unitRef="pure">0.0689</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldSmallCapIndexnetdividends3103_S000055975Member_S000055975Summary34Member"
      id="ixv-273777">MSCI All Country World Small Cap 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000055975Member_S000055975Summary34Member"
      id="ixv-273778">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldSmallCapIndexnetdividends3104_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273779"
      unitRef="pure">0.1972</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldSmallCapIndexnetdividends3104_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273780"
      unitRef="pure">0.0729</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170118_20251231_MSCIAllCountryWorldSmallCapIndexnetdividends3104_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2582_"
      unitRef="pure">0.0891</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3105_S000055975Member_S000055975Summary34Member"
      id="ixv-273782">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3106_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273783"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3106_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="ixv-273784"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170118_20251231_MSCIAllCountryWorldIMIIndexnetdividends3106_S000055975Member_S000055975Summary34Member"
      decimals="INF"
      id="_2587_"
      unitRef="pure">0.1159</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273786"> International Small Company 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273787"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40272">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273788"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40279">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273789">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273790">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273791"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273792"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273793"
      unitRef="pure">0.0012</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273794"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273795">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40343">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273796"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273797"
      unitRef="usd">40</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273798"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273799"
      unitRef="usd">125</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273800"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273801"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273802"
      unitRef="usd">219</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273803"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273804"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273805"
      unitRef="usd">493</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273806">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40370">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;14%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; based on the weighted 
average portfolio turnover ratios of each of the Portfolio's underlying investments. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273807"
      unitRef="pure">0.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273808"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40380">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Small Company Portfolio is a &#x201c;fund of funds,&#x201d; which means the Portfolio generally 
allocates its assets among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;), although it has the ability to invest directly in securities and derivatives.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the International Small Company Portfolio&#x2019;s and the Underlying Funds&#x2019; investment 
objectives, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment 
approach that combines &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;research, portfolio design, portfolio management, and trading functions. As further 
described below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; designs emphasize long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Small Company Portfolio is designed to provide 
investors with access to securities portfolios consisting of a broad range of equity securities of primarily 
small Canadian, Japanese, United Kingdom, Continental European and Asia Pacific companies. The Portfolio 
also may have some exposure to small capitalization equity securities associated with other countries 
or regions. The Portfolio pursues its investment objective by investing substantially all of its assets 
in the following Underlying Funds: The Canadian Small Company Series, The Japanese Small Company Series, 
The Asia Pacific Small Company Series, The United&#160;Kingdom Small Company Series and The Continental 
Small Company Series of The DFA Investment Trust Company. Periodically, the Advisor will review the allocations 
for the Portfolio in each Underlying Fund and may adjust allocations to the Underlying Funds or may add 
or remove Underlying Funds in the Portfolio without notice to shareholders. Each Underlying Fund invests 
in small companies using a market capitalization weighted approach in each country or region designated 
by the Advisor as an approved market for investment. A company&#x2019;s market capitalization is the number 
of its shares outstanding times its price per share. Under a market capitalization weighted approach, 
companies with higher market capitalizations generally represent a larger proportion of an Underlying 
Fund than companies with relatively lower market capitalizations. The Portfolio and Underlying Funds 
may emphasize certain stocks, including smaller capitalization companies, lower relative price stocks, 
and/or higher profitability stocks as compared to their representation in the countries and/or regions 
in which the Portfolio and/or Underlying Funds are authorized to invest. An equity issuer is considered 
to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to 
its book value. In assessing relative price, the Advisor may consider additional factors such as price 
to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price and profitability are subject to change from time to time. 
As a non-fundamental policy, under normal circumstances, the International Small Company Portfolio, through 
its investments in the Underlying Funds, will invest at least 80% of its net assets in securities of 
small companies.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the International 
Small Company Portfolio&#x2019;s and/or Underlying Funds&#x2019; exposure to an eligible company, or exclude 
a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run 
reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time 
to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that 
looks for opportunities to participate in the available market liquidity, while managing turnover and 
explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Small Company Portfolio and each Underlying 
Fund may invest in affiliated and unaffiliated registered and unregistered money market funds to manage 
its cash pending investment in other securities or to maintain liquidity for the payment of redemptions 
or other purposes. Investments in money market funds may involve a duplication of certain fees and expenses.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Each 
Underlying Fund may gain exposure to companies associated with approved markets by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The International Small Company Portfolio and each Underlying Fund may purchase or 
sell futures contracts and options on futures contracts for equity securities and indices of its approved 
markets or other equity market securities or indices, including those of the United States, to increase 
or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio 
or Underlying Fund. Because many of the Portfolio&#x2019;s and the Underlying Funds&#x2019; investments 
may be denominated in foreign currencies, the Portfolio and each Underlying Fund may enter into foreign 
currency exchange transactions, including foreign currency forward contracts, in connection with the 
settlement of foreign securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Small Company Portfolio and the Underlying Funds may lend their portfolio securities to 
generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A summary of the investment strategies and policies of the 
Underlying Funds in which the International Small Company Portfolio invests as of the date of this Prospectus 
is described in the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL 
INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_PrincipalRisks2_S000000967Summary35Member"
      id="ixv-40400">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_RiskLoseMoneyMember_S000000967Summary35Member"
      id="ixv-273809">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_RiskNotInsuredMember_S000000967Summary35Member"
      id="ixv-273810">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_FundofFundsRisk2_S000000967Summary35Member"
      id="ixv-40406">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_EquityMarketRisk2_S000000967Summary35Member"
      id="ixv-40411">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_ForeignSecuritiesandCurrenciesRisk2_S000000967Summary35Member"
      id="ixv-40416">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_GeographicFocusRisk2_S000000967Summary35Member"
      id="ixv-40423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_SmallCompanyRisk2_S000000967Summary35Member"
      id="ixv-40428">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_ProfitabilityInvestmentRisk2_S000000967Summary35Member"
      id="ixv-40437">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
High relative profitability stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_ValueInvestmentRisk2_S000000967Summary35Member"
      id="ixv-40441">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_DerivativesRisk2_S000000967Summary35Member"
      id="ixv-40446">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_SecuritiesLendingRisk2_S000000967Summary35Member"
      id="ixv-40450">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_OperationalRisk2_S000000967Summary35Member"
      id="ixv-40454">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_CyberSecurityRisk2_S000000967Summary35Member"
      id="ixv-40459">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273811"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-40469">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273812">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273813"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273814">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273815">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273816">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273817">International 
Small Company Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273818">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273819">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273820"
      unitRef="pure">0.2100</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273821">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273822"
      unitRef="pure">-0.3021</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273823">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273824">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273825">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273826"
      unitRef="pure">0.3633</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273827"
      unitRef="pure">0.0892</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273828"
      unitRef="pure">0.0873</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273829">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273830"
      unitRef="pure">0.3516</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273831"
      unitRef="pure">0.0793</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273832"
      unitRef="pure">0.0761</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      id="ixv-273833">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273834"
      unitRef="pure">0.2209</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273835"
      unitRef="pure">0.0684</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002718Member_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273836"
      unitRef="pure">0.0679</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSASmallCapIndexnetdividends3107_S000000967Member_S000000967Summary35Member"
      id="ixv-273837">MSCI World ex USA Small Cap Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000967Member_S000000967Summary35Member"
      id="ixv-273838">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3108_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273839"
      unitRef="pure">0.3407</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3108_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273840"
      unitRef="pure">0.0649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3108_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273841"
      unitRef="pure">0.0805</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3109_S000000967Member_S000000967Summary35Member"
      id="ixv-273842">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3110_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273843"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3110_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273844"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3110_S000000967Member_S000000967Summary35Member"
      decimals="INF"
      id="ixv-273845"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273846"> Japanese Small Company Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273847"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-40808">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Japanese Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation. The Japanese Small Company Portfolio is a Feeder Portfolio and pursues 
its objective by investing substantially all of its assets in its corresponding Master Fund, The Japanese 
Small Company Series (the &#x201c;Japanese Small Company Series&#x201d; or the &#x201c;Series&#x201d;) of 
The DFA Investment Trust Company (the &#x201c;Trust&#x201d;), which has the same investment objective and 
policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273848"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-40815">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273849">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273850">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="_2688_"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="_2689_"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="_2690_"
      unitRef="pure">0.0050</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="_2691_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="_2692_"
      unitRef="pure">0.0040</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273856">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-40897">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273857"
      unitRef="usd">41</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273858"
      unitRef="usd">41</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273859"
      unitRef="usd">128</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273860"
      unitRef="usd">128</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273861"
      unitRef="usd">224</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273862"
      unitRef="usd">224</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273863"
      unitRef="usd">224</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273864"
      unitRef="usd">505</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273865"
      unitRef="usd">505</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273866"
      unitRef="usd">505</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273867">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-40924">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;14%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273868"
      unitRef="pure">0.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273869"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-40939">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Japanese Small Company Portfolio is 
a feeder portfolio that invests substantially all of its assets in the Japanese Small Company Series. 
To achieve the Portfolio&#x2019;s and the Series&#x2019; investment objectives, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Series&#x2019; design 
emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while balancing 
risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio management 
and trading processes further balance those long-term drivers of expected returns with shorter-term drivers 
of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Japanese Small Company Series, 
using a market capitalization weighted approach, is designed to purchase a broad and diverse group of 
readily marketable securities of small companies associated with Japan. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. Under a market capitalization weighted 
approach, companies with higher market capitalizations generally represent a larger proportion of the 
Series than companies with relatively lower market capitalizations. The Series may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small company segment of the Japanese market. An equity 
issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low 
price in relation to its book value. In assessing relative price, the Advisor may consider additional 
factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have 
high profitability because it has high earnings or profits from operations in relation to its book value 
or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to 
change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
Japanese Small Company Series will invest at least 80% of its net assets in securities of Japanese small 
companies. The Advisor first ranks eligible companies by market capitalization. The Advisor then determines 
the universe of eligible securities by defining the maximum market capitalization of a small company 
in Japan. Based on market capitalization data as of December 31, 2025, the Advisor would consider Japanese 
small companies to be those companies with a market capitalization below $3,311 million. This threshold 
will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the Japanese Small Company Series&#x2019; exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Japanese Small Company Series may gain exposure to companies 
associated with Japan by purchasing equity securities in the form of depositary receipts, which may be 
listed or traded outside the issuer&#x2019;s domicile country. The Series and the Japanese Small Company 
Portfolio each may purchase or sell futures contracts and options on futures contracts for Japanese equity 
securities and indices or other equity market securities and indices, including those of the United States, 
to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows 
from the Series or Portfolio. Because many of the Series&#x2019; and the Portfolio&#x2019;s investments 
may be denominated in foreign currencies, the Series and the Portfolio may enter into foreign currency 
exchange transactions, including foreign currency forward contracts, in connection with the settlement 
of foreign securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Japanese Small Company Series may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_PrincipalRisks2_S000000963Summary36Member"
      id="ixv-40946">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x55x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_RiskLoseMoneyMember_S000000963Summary36Member"
      id="ixv-273870">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_RiskNotInsuredMember_S000000963Summary36Member"
      id="ixv-273871">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_EquityMarketRisk2_S000000963Summary36Member"
      id="ixv-40957">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_ForeignSecuritiesandCurrenciesRisk2_S000000963Summary36Member"
      id="ixv-40962">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_GeographicFocusRisk2_S000000963Summary36Member"
      id="ixv-40969">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_JapanMarketRisk2_S000000963Summary36Member"
      id="ixv-40974">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Japan Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The performance of a fund that  concentrates investments in 
Japan is expected to be closely tied to the social, political and economic conditions within Japan and 
to be more volatile than the performance of funds with more geographically diverse investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_SmallCompanyRisk2_S000000963Summary36Member"
      id="ixv-40979">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies 
are often less liquid than those of large companies and this could make it difficult to sell a small 
company security at a desired time or price. As a result, small company stocks may fluctuate relatively 
more in price. In general, smaller capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_ProfitabilityInvestmentRisk2_S000000963Summary36Member"
      id="ixv-40983">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_ValueInvestmentRisk2_S000000963Summary36Member"
      id="ixv-40987">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_DerivativesRisk2_S000000963Summary36Member"
      id="ixv-40992">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;well as difficulties with respect to valuation. Changes in the value of a derivative 
may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than 
the principal amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_SecuritiesLendingRisk2_S000000963Summary36Member"
      id="ixv-41001">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_OperationalRisk2_S000000963Summary36Member"
      id="ixv-41005">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_CyberSecurityRisk2_S000000963Summary36Member"
      id="ixv-41010">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273873"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-41020">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273874">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273875"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273876">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273877">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273878">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273879">Japanese 
Small Company Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273880">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273881">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273882"
      unitRef="pure">0.1325</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273883">2022-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273884"
      unitRef="pure">-0.2045</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273885">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273886">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273887">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273888"
      unitRef="pure">0.3156</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273889"
      unitRef="pure">0.0721</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273890"
      unitRef="pure">0.0756</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273891">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273892"
      unitRef="pure">0.3038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273893"
      unitRef="pure">0.0606</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273894"
      unitRef="pure">0.0655</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      id="ixv-273895">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273896"
      unitRef="pure">0.1931</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273897"
      unitRef="pure">0.0543</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002714Member_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273898"
      unitRef="pure">0.0591</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIJapanSmallCapIndexnetdividends3111_S000000963Member_S000000963Summary36Member"
      id="ixv-273899">MSCI Japan Small Cap Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000963Member_S000000963Summary36Member"
      id="ixv-273900">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIJapanSmallCapIndexnetdividends3112_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273901"
      unitRef="pure">0.2870</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIJapanSmallCapIndexnetdividends3112_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273902"
      unitRef="pure">0.0552</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIJapanSmallCapIndexnetdividends3112_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273903"
      unitRef="pure">0.0702</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIJapanIndexnetdividends3113_S000000963Member_S000000963Summary36Member"
      id="ixv-273904">MSCI Japan Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIJapanIndexnetdividends3114_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273905"
      unitRef="pure">0.2460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIJapanIndexnetdividends3114_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273906"
      unitRef="pure">0.0660</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIJapanIndexnetdividends3114_S000000963Member_S000000963Summary36Member"
      decimals="INF"
      id="ixv-273907"
      unitRef="pure">0.0762</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273908"> Asia Pacific Small Company 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273909"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41358">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Asia Pacific Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation. The Asia Pacific Small Company Portfolio is a Feeder Portfolio 
and pursues its objective by investing substantially all of its assets in its corresponding Master Fund, 
The Asia Pacific Small Company Series (the &#x201c;Asia Pacific Small Company Series&#x201d; or the &#x201c;Series&#x201d;) 
of The DFA Investment Trust Company (the &#x201c;Trust&#x201d;), which has the same investment objective 
and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273910"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41365">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273911">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273912">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="_2782_"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="_2783_"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="_2784_"
      unitRef="pure">0.0051</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="_2785_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="_2786_"
      unitRef="pure">0.0041</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273918">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41447">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273919"
      unitRef="usd">42</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273920"
      unitRef="usd">42</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273921"
      unitRef="usd">132</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273922"
      unitRef="usd">132</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273923"
      unitRef="usd">230</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273924"
      unitRef="usd">230</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273925"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273926"
      unitRef="usd">518</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273927"
      unitRef="usd">518</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273928"
      unitRef="usd">518</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273929">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41474">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;21%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273930"
      unitRef="pure">0.21</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273931"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41489">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Asia Pacific Small Company Portfolio 
is a feeder portfolio that invests substantially all of its assets in the Asia Pacific Small Company 
Series. To achieve the Portfolio&#x2019;s and the Series&#x2019; investment objectives, Dimensional Fund 
Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Series&#x2019; 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Asia Pacific Small Company Series, using a market capitalization weighted approach, is designed to purchase 
a broad and diverse group of readily marketable securities of small companies associated with Australia, 
New Zealand and Pacific Rim Asian countries designated by the Advisor as approved markets for investment. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the Series than companies with relatively lower market capitalizations. 
The Series may emphasize certain stocks, including smaller capitalization companies, lower relative price 
stocks, and/or higher profitability stocks as compared to their representation in the small company segment 
of the region in which the Series is authorized to invest. An equity issuer is considered to have a low 
relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Asia Pacific Small Company Series will invest 
at least 80% of its net assets in securities of small companies located in Australia, New Zealand and 
Pacific Rim Asian countries. The Advisor determines the maximum market capitalization of a small company 
with respect to each country in which the Series invests. Based on market capitalization data as of December 
31, 2025, for the Series, the market capitalization of a small company in any country in which the Series 
invests would be below $6,817 million. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the Asia Pacific Small Company Series&#x2019; exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Asia Pacific Small Company 
Series may gain exposure to companies associated with approved markets by purchasing equity securities 
in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile 
country. The Series and the Asia Pacific Small Company Portfolio each may purchase or sell futures contracts 
and options on futures contracts for Asia Pacific equity securities and indices or other equity market 
securities and indices, including those of the United States, to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Series or Portfolio. Because many of 
the Series&#x2019; and the Portfolio&#x2019;s investments may be denominated in foreign currencies, the 
Series and the Portfolio may enter into foreign currency exchange transactions, including foreign currency 
forward contracts, in connection with the settlement of foreign securities or to transfer cash balances 
from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Asia Pacific Small Company Series 
may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_PrincipalRisks2_S000000966Summary37Member"
      id="ixv-41499">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x65x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_RiskLoseMoneyMember_S000000966Summary37Member"
      id="ixv-273932">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_RiskNotInsuredMember_S000000966Summary37Member"
      id="ixv-273933">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_EquityMarketRisk2_S000000966Summary37Member"
      id="ixv-41505">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_ForeignSecuritiesandCurrenciesRisk2_S000000966Summary37Member"
      id="ixv-41510">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_GeographicFocusRisk2_S000000966Summary37Member"
      id="ixv-41517">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_AsiaPacificMarketRisk2_S000000966Summary37Member"
      id="ixv-41522">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Asia Pacific 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The performance of a fund 
that concentrates investments in Asia Pacific countries is expected to be closely tied to the social, 
political and economic conditions within such Asia Pacific countries and to be more volatile than the 
performance of funds with more geographically diverse investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_SmallCompanyRisk2_S000000966Summary37Member"
      id="ixv-41528">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies 
are often less liquid than those of large companies and this could make it difficult to sell a small 
company security at a desired time or price. As a result, small company stocks may fluctuate relatively 
more in price. In general, smaller capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_ProfitabilityInvestmentRisk2_S000000966Summary37Member"
      id="ixv-41532">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_ValueInvestmentRisk2_S000000966Summary37Member"
      id="ixv-41536">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_DerivativesRisk2_S000000966Summary37Member"
      id="ixv-41545">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as futures contracts, and options thereon, and foreign currency forward contracts, 
whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging 
purposes may be considered to carry more risk than other types of investments. When a fund uses derivatives, 
the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject 
to a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and 
management risks, as well as difficulties with respect to valuation. Changes in the value of a derivative 
may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than 
the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_SecuritiesLendingRisk2_S000000966Summary37Member"
      id="ixv-41549">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_OperationalRisk2_S000000966Summary37Member"
      id="ixv-41553">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_CyberSecurityRisk2_S000000966Summary37Member"
      id="ixv-41558">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273934"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-41568">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273935">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273936"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273937">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273938">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273939">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273940">Asia 
Pacific Small Company Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273941">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273942">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273943"
      unitRef="pure">0.2875</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273944">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273945"
      unitRef="pure">-0.3185</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273946">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273947">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273948">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273949"
      unitRef="pure">0.3475</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273950"
      unitRef="pure">0.0557</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273951"
      unitRef="pure">0.0705</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273952">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273953"
      unitRef="pure">0.3254</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273954"
      unitRef="pure">0.0344</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273955"
      unitRef="pure">0.0531</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      id="ixv-273956">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273957"
      unitRef="pure">0.2095</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273958"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002717Member_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273959"
      unitRef="pure">0.0503</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIPacificexJapanSmallCapIndexnetdividends3115_S000000966Member_S000000966Summary37Member"
      id="ixv-273960">MSCI Pacific ex Japan Small Cap Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000966Member_S000000966Summary37Member"
      id="ixv-273961">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIPacificexJapanSmallCapIndexnetdividends3116_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273962"
      unitRef="pure">0.2933</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIPacificexJapanSmallCapIndexnetdividends3116_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273963"
      unitRef="pure">0.0462</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIPacificexJapanSmallCapIndexnetdividends3116_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273964"
      unitRef="pure">0.0723</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIPacificexJapanIndexnetdividends3117_S000000966Member_S000000966Summary37Member"
      id="ixv-273965">MSCI Pacific ex Japan Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIPacificexJapanIndexnetdividends3118_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273966"
      unitRef="pure">0.2062</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIPacificexJapanIndexnetdividends3118_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273967"
      unitRef="pure">0.0574</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIPacificexJapanIndexnetdividends3118_S000000966Member_S000000966Summary37Member"
      decimals="INF"
      id="ixv-273968"
      unitRef="pure">0.0734</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273969"> United Kingdom Small Company 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273970"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-41906">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the United Kingdom Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation. The United Kingdom Small Company Portfolio is a Feeder Portfolio 
and pursues its objective by investing substantially all of its assets in its corresponding Master Fund, 
The United Kingdom Small Company Series (the &#x201c;United Kingdom Small Company Series&#x201d; or the 
&#x201c;Series&#x201d;) of The DFA Investment Trust Company (the &#x201c;Trust&#x201d;), which has the same 
investment objective and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273971"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-41913">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273972">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273973">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="_2876_"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="_2877_"
      unitRef="pure">0.0016</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="_2878_"
      unitRef="pure">0.0061</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="_2879_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="_2880_"
      unitRef="pure">0.0051</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273979">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-41995">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273980"
      unitRef="usd">52</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273981"
      unitRef="usd">52</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273982"
      unitRef="usd">164</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273983"
      unitRef="usd">164</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273984"
      unitRef="usd">285</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273985"
      unitRef="usd">285</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273986"
      unitRef="usd">285</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273987"
      unitRef="usd">640</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273988"
      unitRef="usd">640</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273989"
      unitRef="usd">640</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273990">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-42022">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;19%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-273991"
      unitRef="pure">0.19</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273992"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-42037">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The United Kingdom Small Company Portfolio 
is a feeder portfolio that invests substantially all of its assets in the United Kingdom Small Company 
Series. To achieve the Portfolio&#x2019;s and the Series&#x2019; investment objectives, Dimensional Fund 
Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Series&#x2019; 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The United Kingdom Small 
Company Series, using a market capitalization weighted approach, is designed to purchase a broad and 
diverse group of readily marketable securities of small companies associated with the United Kingdom. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the Series than companies with relatively lower market capitalizations. 
The Series may emphasize certain stocks, including smaller capitalization companies, lower relative price 
stocks, and/or higher profitability stocks as compared to their representation in the small company segment 
of the United&#160;Kingdom market. An equity issuer is considered to have a low relative price (i.e., 
a value stock) primarily because it has a low price in relation to its book value. In assessing relative 
price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. 
An equity issuer is considered to have high profitability because it has high earnings or profits from 
operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative 
price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the United Kingdom Small Company Series will invest 
at least 80% of its net assets in securities of United Kingdom small companies. Based on market capitalization 
data as of December 31, 2025, the Advisor would consider United Kingdom small companies to be those companies 
with a market capitalization below $8,370 million. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the United Kingdom Small Company Series&#x2019; exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The United Kingdom Small 
Company Series may gain exposure to companies associated with the United&#160;Kingdom by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Series and the United Kingdom Small Company Portfolio each may purchase or sell 
futures contracts and options on futures contracts for United Kingdom equity securities and indices or 
other equity market securities and indices, including those of the United States, to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Series or Portfolio. 
Because many of the Series&#x2019; and the Portfolio&#x2019;s investments may be denominated in foreign 
currencies, the Series and the Portfolio may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The United Kingdom Small 
Company Series may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_PrincipalRisks2_S000000964Summary38Member"
      id="ixv-42044">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x75x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_RiskLoseMoneyMember_S000000964Summary38Member"
      id="ixv-273993">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_RiskNotInsuredMember_S000000964Summary38Member"
      id="ixv-273994">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_EquityMarketRisk2_S000000964Summary38Member"
      id="ixv-42055">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_ForeignSecuritiesandCurrenciesRisk2_S000000964Summary38Member"
      id="ixv-42060">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_GeographicFocusRisk2_S000000964Summary38Member"
      id="ixv-42067">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_UnitedKingdomMarketRisk2_S000000964Summary38Member"
      id="ixv-42072">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;United Kingdom 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The performance of a fund 
that concentrates investments in the United Kingdom is expected to be closely tied to the social, political 
and economic conditions within the United Kingdom and to be more volatile than the performance of funds 
with more geographically diverse investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_SmallCompanyRisk2_S000000964Summary38Member"
      id="ixv-42077">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small 
Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than 
those of large companies and this could make it difficult to sell a small company security at a desired 
time or price. As a result, small company stocks may fluctuate relatively more in price. In general, 
smaller capitalization companies are also more vulnerable than larger companies to adverse business or 
economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_ProfitabilityInvestmentRisk2_S000000964Summary38Member"
      id="ixv-42081">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_ValueInvestmentRisk2_S000000964Summary38Member"
      id="ixv-42085">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_DerivativesRisk2_S000000964Summary38Member"
      id="ixv-42090">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;well as difficulties with respect to valuation. Changes in the value of a derivative 
may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than 
the principal amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_SecuritiesLendingRisk2_S000000964Summary38Member"
      id="ixv-42099">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_OperationalRisk2_S000000964Summary38Member"
      id="ixv-42103">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_CyberSecurityRisk2_S000000964Summary38Member"
      id="ixv-42108">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273996"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-42118">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273997">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273998"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-273999">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-274000">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-274001">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-274002">United 
Kingdom Small Company Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274003">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274004">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274005"
      unitRef="pure">0.2840</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274006">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274007"
      unitRef="pure">-0.3922</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274008">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-274009">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274010">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274011"
      unitRef="pure">0.2145</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274012"
      unitRef="pure">0.0560</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274013"
      unitRef="pure">0.0467</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274014">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274015"
      unitRef="pure">0.2004</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274016"
      unitRef="pure">0.0460</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274017"
      unitRef="pure">0.0322</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      id="ixv-274018">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274019"
      unitRef="pure">0.1331</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274020"
      unitRef="pure">0.0417</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002715Member_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274021"
      unitRef="pure">0.0331</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIUnitedKingdomSmallCapIndexnetdividends3119_S000000964Member_S000000964Summary38Member"
      id="ixv-274022">MSCI United Kingdom Small Cap Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000964Member_S000000964Summary38Member"
      id="ixv-274023">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIUnitedKingdomSmallCapIndexnetdividends3120_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274024"
      unitRef="pure">0.2466</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIUnitedKingdomSmallCapIndexnetdividends3120_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274025"
      unitRef="pure">0.0355</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIUnitedKingdomSmallCapIndexnetdividends3120_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274026"
      unitRef="pure">0.0414</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIUnitedKingdomIndexnetdividends3121_S000000964Member_S000000964Summary38Member"
      id="ixv-274027">MSCI United Kingdom Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIUnitedKingdomIndexnetdividends3122_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274028"
      unitRef="pure">0.3511</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIUnitedKingdomIndexnetdividends3122_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274029"
      unitRef="pure">0.1333</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIUnitedKingdomIndexnetdividends3122_S000000964Member_S000000964Summary38Member"
      decimals="INF"
      id="ixv-274030"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274031"> Continental Small Company 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274032"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42456">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Continental Small Company Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation. The Continental Small Company Portfolio is a Feeder Portfolio and pursues 
its objective by investing substantially all of its assets in its corresponding Master Fund, The Continental 
Small Company Series (the &#x201c;Continental Small Company Series&#x201d; or the &#x201c;Series&#x201d;) 
of The DFA Investment Trust Company (the &#x201c;Trust&#x201d;), which has the same investment objective 
and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274033"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42463">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274034">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274035">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="_2970_"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="_2971_"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="_2972_"
      unitRef="pure">0.0052</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="_2973_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="_2974_"
      unitRef="pure">0.0042</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274041">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42545">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274042"
      unitRef="usd">43</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274043"
      unitRef="usd">43</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274044"
      unitRef="usd">135</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274045"
      unitRef="usd">135</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274046"
      unitRef="usd">235</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274047"
      unitRef="usd">235</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274048"
      unitRef="usd">235</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274049"
      unitRef="usd">530</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274050"
      unitRef="usd">530</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274051"
      unitRef="usd">530</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274052">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42572">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274053"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274054"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42587">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Continental Small Company Portfolio 
is a feeder portfolio that invests substantially all of its assets in the Continental Small Company Series. 
To achieve the Portfolio&#x2019;s and the Series&#x2019; investment objectives, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Series&#x2019; design 
emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while balancing 
risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Continental Small 
Company Series, using a market capitalization weighted approach, is designed to purchase a broad and 
diverse group of readily marketable securities of small companies associated with European countries 
designated by the Advisor as approved markets for investment. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. Under a market capitalization weighted 
approach, companies with higher market capitalizations generally represent a larger proportion of the 
Series than companies with relatively lower market capitalizations. The Series may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small company segment of the region in which the Series 
is authorized to invest. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the Continental Small Company Series will invest at least 80% of its net 
assets in securities of small companies located in continental Europe. The Advisor determines the maximum 
market capitalization of a small company with respect to each country or region in which the Series invests. 
Based on market capitalization data as of December 31, 2025, for the Series, the market capitalization 
of a small company in any country or region in which the Series invests would be below $16,226 million. 
This threshold will change due to market conditions. The Series also may invest up to 20% of its net 
assets in small companies associated with non-European countries that the Advisor has identified as approved 
markets for investment.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Continental Small 
Company Series&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in 
assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Continental Small Company Series may gain exposure to companies associated with approved markets by purchasing 
equity securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Series and the Continental Small Company Portfolio each may purchase or sell futures 
contracts and options on futures contracts for continental European equity securities and indices or 
other equity market securities and indices, including those of the United States, to increase or decrease 
equity market exposure based on actual or expected cash inflows to or outflows from the Series or Portfolio. 
Because many of the Series&#x2019; and the Portfolio&#x2019;s investments may be denominated in foreign 
currencies, the Series and the Portfolio may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Continental Small 
Company Series may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_PrincipalRisks2_S000000965Summary39Member"
      id="ixv-42597">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x85x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_RiskLoseMoneyMember_S000000965Summary39Member"
      id="ixv-274055">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_RiskNotInsuredMember_S000000965Summary39Member"
      id="ixv-274056">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_EquityMarketRisk2_S000000965Summary39Member"
      id="ixv-42603">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_ForeignSecuritiesandCurrenciesRisk2_S000000965Summary39Member"
      id="ixv-42608">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_EuropeanMarketRisk2_S000000965Summary39Member"
      id="ixv-42615">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;European Market 
Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The performance of a fund that concentrates investments in 
European countries is expected to be closely tied to the social, political and economic conditions within 
such European countries and to be more volatile than the performance of funds with more geographically 
diverse investments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_SmallCompanyRisk2_S000000965Summary39Member"
      id="ixv-42620">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities of small companies are often less liquid than those of large companies and this could make 
it difficult to sell a small company security at a desired time or price. As a result, small company 
stocks may fluctuate relatively more in price. In general, smaller capitalization companies are also 
more vulnerable than larger companies to adverse business or economic developments and they may have 
more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_ProfitabilityInvestmentRisk2_S000000965Summary39Member"
      id="ixv-42624">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
High relative profitability stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_ValueInvestmentRisk2_S000000965Summary39Member"
      id="ixv-42628">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_DerivativesRisk2_S000000965Summary39Member"
      id="ixv-42633">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_SecuritiesLendingRisk2_S000000965Summary39Member"
      id="ixv-42640">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_OperationalRisk2_S000000965Summary39Member"
      id="ixv-42644">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_CyberSecurityRisk2_S000000965Summary39Member"
      id="ixv-42649">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274057"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-42659">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274058">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274059"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274060">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274061">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274062">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274063">Continental 
Small Company Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274064">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274065">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274066"
      unitRef="pure">0.2255</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274067">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274068"
      unitRef="pure">-0.2978</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274069">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274070">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274071">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274072"
      unitRef="pure">0.3756</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274073"
      unitRef="pure">0.0870</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274074"
      unitRef="pure">0.0971</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274075">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274076"
      unitRef="pure">0.3665</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274077"
      unitRef="pure">0.0801</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274078"
      unitRef="pure">0.0903</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      id="ixv-274079">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274080"
      unitRef="pure">0.2300</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274081"
      unitRef="pure">0.0689</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002716Member_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274082"
      unitRef="pure">0.0790</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEuropeexUKSmallCapIndexnetdividends3123_S000000965Member_S000000965Summary39Member"
      id="ixv-274083">MSCI Europe ex UK Small Cap Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000965Member_S000000965Summary39Member"
      id="ixv-274084">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEuropeexUKSmallCapIndexnetdividends3124_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274085"
      unitRef="pure">0.3527</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEuropeexUKSmallCapIndexnetdividends3124_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274086"
      unitRef="pure">0.0561</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEuropeexUKSmallCapIndexnetdividends3124_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274087"
      unitRef="pure">0.0854</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEuropeexUKIndexnetdividends3125_S000000965Member_S000000965Summary39Member"
      id="ixv-274088">MSCI Europe ex UK Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEuropeexUKIndexnetdividends3126_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274089"
      unitRef="pure">0.3552</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEuropeexUKIndexnetdividends3126_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274090"
      unitRef="pure">0.0940</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEuropeexUKIndexnetdividends3126_S000000965Member_S000000965Summary39Member"
      decimals="INF"
      id="ixv-274091"
      unitRef="pure">0.0879</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274092"> DFA International Real Estate 
Securities Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274093"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-42994">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA International Real Estate Securities Portfolio (the &#x201c;Portfolio&#x201d;) 
is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274094"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-43001">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274095">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274096">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274097"
      unitRef="pure">0.0024</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274098"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274099"
      unitRef="pure">0.0028</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274100">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-43060">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274101"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274102"
      unitRef="usd">29</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274103"
      unitRef="usd">90</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274104"
      unitRef="usd">90</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274105"
      unitRef="usd">157</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274106"
      unitRef="usd">157</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274107"
      unitRef="usd">157</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274108"
      unitRef="usd">356</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274109"
      unitRef="usd">356</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274110"
      unitRef="usd">356</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274111">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-43087">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;3%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274112"
      unitRef="pure">0.03</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274113"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-43097">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the DFA International Real Estate Securities Portfolio&#x2019;s 
investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio, using a market capitalization weighted approach, purchases a broad and diverse set of securities 
of non-U.S. companies principally engaged in the real estate industry, including developed and emerging 
markets, with a particular focus on non-U.S. real estate investment trusts (&#x201c;REITs&#x201d;) and 
companies the Advisor considers to be REIT-like entities. The Portfolio invests in companies of all sizes. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the Portfolio than companies with relatively &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;lower market capitalizations. The Advisor may adjust the representation in the 
Portfolio of an eligible company, or exclude a company, after considering such factors as free float, 
price momentum, short-run reversals, trading strategies, liquidity, size, relative price, profitability, 
and other factors that the Advisor determines to be appropriate. An equity issuer is considered to have 
a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book 
value. In assessing relative price, the Advisor may consider additional factors such as price to cash 
flow or price to earnings ratios. An equity issuer is considered to have high profitability because it 
has high earnings or profits from operations in relation to its book value or assets. The criteria the 
Advisor uses for assessing relative price and profitability are subject to change from time to time. 
The Advisor also may limit or fix the Portfolio&#x2019;s exposure to a particular country or issuer.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA International Real Estate Securities Portfolio considers a company to be principally engaged in the 
real estate industry if the company&#x2019;s principal activities include ownership, management, development, 
construction, or sale of residential, commercial or industrial real estate. REITs and REIT-like entities 
are types of real estate companies that pool investors&#x2019; funds for investment primarily in income 
producing real estate or real estate related loans or interests.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International 
Real Estate Securities Portfolio intends to purchase securities of companies associated with developed 
and emerging markets countries that the Advisor has designated as approved markets for investment. As 
a non-fundamental policy, under normal circumstances, at least 80% of the Portfolio&#x2019;s net assets 
will be invested in securities of companies in the real estate industry. The Portfolio concentrates (i.e., 
invests more than 25% of its net assets) its investments in securities of companies in the real estate 
industry. The Portfolio generally considers a company to be principally engaged in the real estate industry 
if the company (i)&#160;derives at least 50% of its revenue or profits from the ownership, management, 
development, construction, or sale of residential, commercial, industrial, or other real estate; (ii)&#160;has 
at least 50% of the value of its assets invested in residential, commercial, industrial, or other real 
estate; or (iii)&#160;is organized as a REIT or REIT-like entity. The Portfolio also may invest in stapled 
securities, where one or more of the underlying securities represents interests in a company or subsidiary 
in the real estate industry.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International Real Estate Securities Portfolio may 
gain exposure to companies associated with approved markets by purchasing equity securities in the form 
of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The 
Portfolio may purchase or sell futures contracts and options on futures contracts for equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated 
in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International 
Real Estate Securities Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_PrincipalRisks2_S000014548Summary40Member"
      id="ixv-43109">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x95x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_RiskLoseMoneyMember_S000014548Summary40Member"
      id="ixv-274114">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_RiskNotInsuredMember_S000014548Summary40Member"
      id="ixv-274115">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_EquityMarketRisk2_S000014548Summary40Member"
      id="ixv-43115">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_ForeignSecuritiesandCurrenciesRisk2_S000014548Summary40Member"
      id="ixv-43120">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject to uniform accounting, auditing and financial 
reporting standards and there may be less reliable and publicly available financial and other information 
about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising 
shareholder rights, securing dividends and/or interest and obtaining information regarding corporate 
actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments 
in foreign courts than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary 
receipts are generally subject to the same risks as the foreign securities that they evidence or into 
which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly 
unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_GeographicFocusRisk2_S000014548Summary40Member"
      id="ixv-43131">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_SmallandMid-CapCompanyRisk2_S000014548Summary40Member"
      id="ixv-43136">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_RisksofConcentratingintheRealEstateIndustry2_S000014548Summary40Member"
      id="ixv-43141">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Concentrating 
in the Real Estate Industry:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that concentrates 
(i.e., invests more than 25% of its net assets) its investments in securities of companies in the real 
estate industry will be exposed to the general risks of direct real estate ownership. The value of securities 
in the real estate industry can be affected by changes in real estate values and rental income, property 
taxes, and tax and regulatory requirements. Also, the value of securities in the real estate industry 
may decline with changes in interest rates. Investing in REITs and REIT-like entities involves certain 
unique risks in addition to those risks associated with investing in the real estate industry in general. 
REITs and REIT-like entities are dependent upon management skill, may not be diversified, and are subject 
to heavy cash flow dependency and self-liquidation. REITs and REIT-like entities also are subject to 
the possibility of failing to qualify for tax free pass-through of income. Also, many foreign REIT-like 
entities are deemed for tax purposes as passive foreign investment companies (PFICs), which could result 
in the receipt of taxable dividends to shareholders at an unfavorable tax rate. Also, because REITs and 
REIT-like entities typically are invested in a limited number of projects or in a particular market segment, 
these entities are more susceptible to adverse developments affecting a single project or market segment 
than more broadly diversified investments. The performance of a fund may be materially different from 
the broad equity market.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_EmergingMarketsRisk2_S000014548Summary40Member"
      id="ixv-43146">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries may be subject 
to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous 
emerging market countries have a history of, and continue to experience serious, and potentially continuing, 
economic and political problems. Stock markets in many emerging market countries are relatively small, 
expensive to trade in and generally have higher risks than those in developed markets. Securities in 
emerging markets also may be less liquid than those in developed markets and foreigners are often limited 
in their ability to invest in, and withdraw assets from, these markets. Additional restrictions may be 
imposed under other conditions. Frontier market countries generally have smaller economies or less developed 
capital markets and, as a result, the risks of investing in emerging market countries are magnified in 
frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_DerivativesRisk2_S000014548Summary40Member"
      id="ixv-43153">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_SecuritiesLendingRisk2_S000014548Summary40Member"
      id="ixv-43160">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_OperationalRisk2_S000014548Summary40Member"
      id="ixv-43164">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_CyberSecurityRisk2_S000014548Summary40Member"
      id="ixv-43169">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274116"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-43179">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274117">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274118"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274119">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274120">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274121">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274122">DFA 
International Real Estate Securities Portfolio&#x2005;Institutional 
Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274123">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274124">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274125"
      unitRef="pure">0.1600</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274126">2024-09-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274127"
      unitRef="pure">-0.3287</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274128">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274129">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274130">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274131"
      unitRef="pure">0.2463</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274132"
      unitRef="pure">0.0150</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274133"
      unitRef="pure">0.0298</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274134">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274135"
      unitRef="pure">0.2213</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274136"
      unitRef="pure">-0.0005</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274137"
      unitRef="pure">0.0108</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      id="ixv-274138">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274139"
      unitRef="pure">0.1529</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274140"
      unitRef="pure">0.0073</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000039642Member_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274141"
      unitRef="pure">0.0167</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalexUSREITIndexnetdividends3127_S000014548Member_S000014548Summary40Member"
      id="_3137_">S&amp;P Global ex US REIT 
Index (net dividends)1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000014548Member_S000014548Summary40Member"
      id="ixv-274143">(reflects no deduction for 
fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalexUSREITIndexnetdividends3128_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274144"
      unitRef="pure">0.2429</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalexUSREITIndexnetdividends3128_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274145"
      unitRef="pure">0.0109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalexUSREITIndexnetdividends3128_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274146"
      unitRef="pure">0.0262</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSAIMIIndexnetdividends3129_S000014548Member_S000014548Summary40Member"
      id="ixv-274147">MSCI All Country World ex USA IMI 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3130_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274148"
      unitRef="pure">0.3196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3130_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274149"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3130_S000014548Member_S000014548Summary40Member"
      decimals="INF"
      id="ixv-274150"
      unitRef="pure">0.0837</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274151"> DFA Global Real Estate Securities 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274152"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43540">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Global Real Estate Securities Portfolio (the &#x201c;Portfolio&#x201d;) 
is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274153"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43547">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274154">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274155">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274156"
      unitRef="pure">0.0019</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274157"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274158"
      unitRef="pure">0.0007</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274159"
      unitRef="pure">0.0029</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="_3158_"
      unitRef="pure">-0.0007</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274161"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274162">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43635">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274163"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274164"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274165"
      unitRef="usd">86</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274166"
      unitRef="usd">86</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274167"
      unitRef="usd">156</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274168"
      unitRef="usd">156</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274169"
      unitRef="usd">156</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274170"
      unitRef="usd">361</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274171"
      unitRef="usd">361</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274172"
      unitRef="usd">361</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274173">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43662">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;4%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274174"
      unitRef="pure">0.04</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274175"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43675">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the DFA Global Real Estate Securities Portfolio&#x2019;s investment objective, Dimensional Fund 
Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. The Portfolio seeks to achieve exposure 
to a broad portfolio of securities of U.S. and non-U.S. companies in the real estate industry, with a 
focus on real estate investment trusts (&#x201c;REITs&#x201d;) or companies that the Advisor considers 
to be REIT-like entities. The Portfolio invests in companies of all sizes. The Portfolio may pursue its 
investment objective by investing its assets in the DFA Real Estate Securities Portfolio, DFA International 
Real Estate Securities Portfolio (the &#x201c;Underlying Funds&#x201d;), and/or directly in securities 
of companies in the real estate industry. Periodically, the Advisor will review the allocations for the 
Portfolio in each Underlying Fund and may adjust allocations to the Underlying Funds or may add or remove 
Underlying Funds in the Portfolio without notice to shareholders. The Portfolio and Underlying Funds 
generally consider a company to be principally engaged in the real estate industry if the company (i)&#160;derives 
at least 50% of its revenue or profits from the ownership, management, development, construction, or 
sale of residential, commercial, industrial, or other real estate; (ii)&#160;has at least 50% of the 
value of its assets invested in residential, commercial, industrial, or other real estate; or (iii)&#160;is 
organized as a REIT or REIT-like entity. REITs and REIT-like entities are types of real estate companies 
that pool investors&#x2019; funds for investment primarily in income producing real estate or real estate 
related loans or interests. The Portfolio and each Underlying Fund invest in companies principally engaged 
in the real estate industry in its designated market using a market capitalization weighted approach. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the Portfolio and each Underlying Fund than companies with relatively 
lower market capitalizations. The Advisor may adjust the representation in the Portfolio or the Underlying 
Funds of an eligible company, or exclude a company, after considering such factors as free float, price 
momentum, short-run reversals, trading strategies, liquidity, size, relative price, profitability, and 
other factors that the Advisor determines to be appropriate. An equity issuer is considered to have a 
low relative price (i.e., a value stock) primarily because it has a low price in relation to its book 
value. In assessing relative price, the Advisor may consider additional factors such as price to cash 
flow or price to earnings ratios. An equity issuer is considered to have high profitability because it 
has high earnings or profits from operations in relation to its book value or assets. The criteria the 
Advisor uses for assessing relative price and profitability are subject to change from time to time. 
The Advisor also may limit or fix the Portfolio&#x2019;s exposure to a particular country or issuer.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the DFA Global Real Estate Securities 
Portfolio&#x2019;s net assets will be invested directly, or indirectly through its investment in the Underlying 
Funds, in securities of companies in the real estate industry. The Portfolio concentrates (i.e., invests 
more than 25% of its net assets) its investments in securities of companies in the real estate industry. 
In addition to, or in place of, investments in the Underlying Funds, the Portfolio also is permitted 
to invest directly in the same types of securities of companies in the real estate industry that are 
eligible investments for the Underlying Funds. The Portfolio and each Underlying Fund intend to purchase 
securities of companies associated with countries that the Advisor has identified as approved markets 
for investment for the Portfolio or Underlying Fund. The Portfolio, directly or indirectly through its 
investment in the Underlying Funds, intends to invest its assets to gain exposure to at least three different 
countries, including the United States. As of the date of the Prospectus, the Portfolio, directly or 
indirectly through its investment in the Underlying Funds, invests approximately 72% of its net assets 
in U.S. companies. This percentage will change due to market conditions. The DFA Global Real Estate Securities 
Portfolio and each Underlying Fund may purchase or sell futures contracts and options on futures contracts 
for equity securities and indices to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio or Underlying Fund. Because many of the Portfolio&#x2019;s 
and an Underlying Fund&#x2019;s investments may be denominated in foreign currencies, the Portfolio and 
Underlying Fund may enter into foreign currency exchange transactions, including foreign currency forward 
contracts, in connection with the settlement of foreign securities or to transfer cash balances from 
one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Global Real Estate Securities 
Portfolio and the Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
summary of the investment strategies and policies of the Underlying Funds in which the DFA Global Real 
Estate Securities Portfolio invests as of the date of this Prospectus (other than the Underlying Funds 
that are included elsewhere in the Portfolio&#x2019;s Prospectus) is described in the Portfolio&#x2019;s 
Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT 
OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_PrincipalRisks2_S000021884Summary41Member"
      id="ixv-43685">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x105x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_RiskLoseMoneyMember_S000021884Summary41Member"
      id="ixv-274176">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_RiskNotInsuredMember_S000021884Summary41Member"
      id="ixv-274177">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_FundofFundsRisk2_S000021884Summary41Member"
      id="ixv-43691">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_EquityMarketRisk2_S000021884Summary41Member"
      id="ixv-43696">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_ForeignSecuritiesandCurrenciesRisk2_S000021884Summary41Member"
      id="ixv-43701">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_SmallandMid-CapCompanyRisk2_S000021884Summary41Member"
      id="ixv-43707">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_RisksofConcentratingintheRealEstateIndustry2_S000021884Summary41Member"
      id="ixv-43712">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Concentrating 
in the Real Estate Industry:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that concentrates 
(i.e., invests more than 25% of its net assets) its investments in securities of companies in the real 
estate industry will be exposed to the general risks of direct real estate ownership. The value of securities 
in the real estate industry can be affected by changes in real estate values and rental income, property 
taxes, and tax and regulatory requirements. Also, the value of securities in the real estate industry 
may decline with changes in interest rates. Investing in REITs and REIT-like entities involves certain 
unique risks in addition to those risks associated with investing in the real estate industry in general. 
REITs and REIT-like entities are dependent upon management skill, may not be diversified, and are subject 
to heavy cash flow dependency and self-liquidation. REITs and REIT-like entities also are subject to 
the possibility of failing to qualify for tax free pass-through of income. Also, many foreign REIT-like 
entities are deemed for tax purposes as passive foreign investment companies (PFICs), which could result 
in the receipt of taxable dividends to shareholders at an unfavorable tax rate. Also, because REITs and 
REIT-like entities typically are invested in a limited number of projects or in a particular market segment, 
these entities are more susceptible to adverse developments affecting a single project or market segment 
than more broadly diversified investments. The performance of a fund may be materially different from 
the broad equity market.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_EmergingMarketsRisk2_S000021884Summary41Member"
      id="ixv-43720">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities 
of issuers associated with emerging market countries may be subject to higher and additional risks than 
securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market 
countries have a history of, and continue to experience serious, and potentially continuing, economic 
and political problems. Stock markets in many emerging market countries are relatively small, expensive 
to trade in and generally have higher risks than those in developed markets. Securities in emerging markets 
also may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_DerivativesRisk2_S000021884Summary41Member"
      id="ixv-43727">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward 
contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, settlement, liquidity, interest 
rate, market, credit and management risks, as well as difficulties with respect to valuation. Changes 
in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and 
a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_SecuritiesLendingRisk2_S000021884Summary41Member"
      id="ixv-43731">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_OperationalRisk2_S000021884Summary41Member"
      id="ixv-43735">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_CyberSecurityRisk2_S000021884Summary41Member"
      id="ixv-43740">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274178"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-43750">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274179">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274180"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274181">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274182">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274183">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274184">DFA Global 
Real Estate Securities Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274185">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274186">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274187"
      unitRef="pure">0.1714</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274188">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274189"
      unitRef="pure">-0.2663</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274190">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274191">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274192">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274193"
      unitRef="pure">0.0789</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274194"
      unitRef="pure">0.0372</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274195"
      unitRef="pure">0.0467</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274196">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274197"
      unitRef="pure">0.0646</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274198"
      unitRef="pure">0.0241</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274199"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      id="ixv-274200">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274201"
      unitRef="pure">0.0497</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274202"
      unitRef="pure">0.0254</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000062760Member_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274203"
      unitRef="pure">0.0315</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalREITIndexnetdividends3131_S000021884Member_S000021884Summary41Member"
      id="_3231_">S&amp;P Global REIT Index 
(net dividends)1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000021884Member_S000021884Summary41Member"
      id="ixv-274205">(reflects no deduction for 
fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalREITIndexnetdividends3132_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274206"
      unitRef="pure">0.0767</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalREITIndexnetdividends3132_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274207"
      unitRef="pure">0.0392</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalREITIndexnetdividends3132_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274208"
      unitRef="pure">0.0379</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3133_S000021884Member_S000021884Summary41Member"
      id="ixv-274209">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3134_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274210"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3134_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274211"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3134_S000021884Member_S000021884Summary41Member"
      decimals="INF"
      id="ixv-274212"
      unitRef="pure">0.1145</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274213"> DFA International Small Cap 
Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274214"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44113">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA International Small Cap Value Portfolio (the &#x201c;Portfolio&#x201d;) 
is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274215"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44120">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274216">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274217">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274218"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274219"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274220"
      unitRef="pure">0.0043</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274221">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44179">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274222"
      unitRef="usd">44</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274223"
      unitRef="usd">44</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274224"
      unitRef="usd">138</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274225"
      unitRef="usd">138</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274226"
      unitRef="usd">241</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274227"
      unitRef="usd">241</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274228"
      unitRef="usd">241</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274229"
      unitRef="usd">542</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274230"
      unitRef="usd">542</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274231"
      unitRef="usd">542</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274232">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44206">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;14%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274233"
      unitRef="pure">0.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274234"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44216">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the DFA International Small 
Cap Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term 
drivers of expected returns identified by the Advisor&#x2019;s research, while balancing risk through 
broad diversification across companies, sectors, and countries. The Advisor&#x2019;s portfolio management 
and trading processes further balance those long-term drivers of expected returns with shorter-term drivers 
of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International Small Cap 
Value Portfolio, using a market capitalization weighted approach, is designed to purchase securities 
of small, non-U.S. companies in countries with developed markets that the Advisor determines to be lower 
relative price stocks at the time of purchase. A company&#x2019;s market capitalization is the number 
of its shares &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;outstanding times its price per share. Under a market capitalization weighted 
approach, companies with higher market capitalizations generally represent a larger proportion of the 
Portfolio than companies with relatively lower market capitalizations. The Portfolio may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small-cap value segment of developed ex-U.S. markets. 
An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it 
has a low price in relation to its book value. In assessing relative price, the Advisor may consider 
additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered 
to have high profitability because it has high earnings or profits from operations in relation to its 
book value or assets. The criteria the Advisor uses for assessing relative price and profitability are 
subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International Small Cap 
Value Portfolio intends to purchase securities of small lower relative price companies associated with 
developed market countries that the Advisor has designated as approved markets. As a non-fundamental 
policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in securities 
of small companies in the particular markets in which it invests. The Advisor determines the maximum 
market capitalization of a small company with respect to each country in which the Portfolio invests. 
In the countries or regions authorized for investment, the Advisor first ranks eligible companies listed 
on selected exchanges based on the companies&#x2019; market capitalizations. The Advisor then determines 
the universe of eligible securities by defining the maximum market capitalization of a small company 
that may be purchased by the Portfolio with respect to each country or region. Based on market capitalization 
data as of December 31, 2025, for the Portfolio, the market capitalization of a small company in any 
country in which the Portfolio invests would be below $16,226 million. This threshold will vary by country 
or region. For example, based on market capitalization data as of December 31, 2025, the Advisor would 
consider a small company in Switzerland to have a market capitalization below $16,226 million, a small 
company in Norway to have a market capitalization below $1,934 million, and a small company in Japan 
to have a market capitalization below $3,311 million. These thresholds will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the DFA International Small Cap Value Portfolio&#x2019;s exposure 
to an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA International Small 
Cap Value Portfolio may gain exposure to companies associated with approved markets by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio also may purchase or sell futures contracts and options on futures contracts 
for foreign and U.S. equity securities and indices to increase or decrease equity market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA International Small Cap Value Portfolio may lend its portfolio securities to generate additional 
income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_PrincipalRisks2_S000000950Summary42Member"
      id="ixv-44228">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x115x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_RiskLoseMoneyMember_S000000950Summary42Member"
      id="ixv-274235">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_RiskNotInsuredMember_S000000950Summary42Member"
      id="ixv-274236">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_EquityMarketRisk2_S000000950Summary42Member"
      id="ixv-44234">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of equity securities, and a fund that owns them, to rise or fall. Stock markets are volatile, with 
periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_SmallCompanyRisk2_S000000950Summary42Member"
      id="ixv-44242">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
of small companies are often less liquid than those of large companies and this could make it difficult 
to sell a small company security at a desired time or price. As a result, small company stocks may fluctuate 
relatively more in price. In general, smaller capitalization companies are also more vulnerable than 
larger companies to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_ForeignSecuritiesandCurrenciesRisk2_S000000950Summary42Member"
      id="ixv-44246">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_GeographicFocusRisk2_S000000950Summary42Member"
      id="ixv-44253">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_ValueInvestmentRisk2_S000000950Summary42Member"
      id="ixv-44258">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_ProfitabilityInvestmentRisk2_S000000950Summary42Member"
      id="ixv-44263">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_DerivativesRisk2_S000000950Summary42Member"
      id="ixv-44267">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_SecuritiesLendingRisk2_S000000950Summary42Member"
      id="ixv-44271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_OperationalRisk2_S000000950Summary42Member"
      id="ixv-44275">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_CyberSecurityRisk2_S000000950Summary42Member"
      id="ixv-44285">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274237"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-44295">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274238">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274239"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274240">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274241">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274242">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274243">DFA 
International Small Cap Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274244">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274245">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274246"
      unitRef="pure">0.1981</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274247">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274248"
      unitRef="pure">-0.3370</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274249">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274250">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274251">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274252"
      unitRef="pure">0.5207</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274253"
      unitRef="pure">0.1506</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274254"
      unitRef="pure">0.1006</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274255">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274256"
      unitRef="pure">0.4937</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274257"
      unitRef="pure">0.1394</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274258"
      unitRef="pure">0.0895</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      id="ixv-274259">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274260"
      unitRef="pure">0.3239</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274261"
      unitRef="pure">0.1191</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002701Member_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274262"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSASmallValueIndexnetdividends3135_S000000950Member_S000000950Summary42Member"
      id="ixv-274263">MSCI World ex USA Small Value Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000950Member_S000000950Summary42Member"
      id="ixv-274264">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSASmallValueIndexnetdividends3136_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274265"
      unitRef="pure">0.3855</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSASmallValueIndexnetdividends3136_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274266"
      unitRef="pure">0.0977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSASmallValueIndexnetdividends3136_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274267"
      unitRef="pure">0.0850</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3137_S000000950Member_S000000950Summary42Member"
      id="ixv-274268">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3138_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274269"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3138_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274270"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3138_S000000950Member_S000000950Summary42Member"
      decimals="INF"
      id="ixv-274271"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274272"> International Vector Equity 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274273"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44630">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Vector Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274274"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44637">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274275">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274276">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="_3339_"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="_3340_"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="_3341_"
      unitRef="pure">0.0029</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274280">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44709">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This Example is meant to 
help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The 
Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example 
also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274281"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274282"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274283"
      unitRef="usd">93</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274284"
      unitRef="usd">93</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274285"
      unitRef="usd">163</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274286"
      unitRef="usd">163</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274287"
      unitRef="usd">163</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274288"
      unitRef="usd">368</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274289"
      unitRef="usd">368</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274290"
      unitRef="usd">368</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274291">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44736">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274292"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274293"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44746">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Vector Equity 
Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;
&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Vector Equity Portfolio is designed to purchase a broad and 
diverse group of equity securities within a market capitalization weighted universe (e.g., the larger 
the company, the greater the proportion of the universe it represents) of non-U.S. companies associated 
with developed markets that have been authorized for investment by the Advisor&#x2019;s Investment Committee 
(the &#x201c;International Universe&#x201d;). The Portfolio invests in companies of all sizes, with strongly 
increased exposure to smaller capitalization, lower relative price, and higher profitability companies 
as compared to their representation in the International Universe. The Portfolio&#x2019;s strongly increased 
exposure to smaller capitalization, lower relative price, and higher profitability companies may be achieved 
by decreasing the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative 
price, or lower profitability companies relative to their weight in the International Universe or by 
avoiding purchases in that segment of the market. An equity issuer is considered to have a high relative 
price (i.e., a growth stock) primarily because it has a high price in relation to its book value. An 
equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has 
a low price in relation to its book value. In assessing relative price, the Advisor may consider additional 
factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have 
high profitability because it has high earnings or profits from operations in relation to its book value 
or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to 
change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor determines company size on a country or region-specific 
basis and based primarily on market capitalization. The Advisor will also establish a minimum market 
capitalization that a company must meet in order to be considered for purchase, which minimum will change 
due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Vector Equity Portfolio intends to purchase 
securities of companies associated with developed market countries that the Advisor has designated as 
approved markets for investment. Under normal market conditions, the Portfolio intends to invest at least 
40% of its assets in three or more non-U.S. countries by investing in securities of companies associated 
with such countries. To determine whether a company is associated with a developed market country, the 
Advisor will consider various factors, such as where the company is organized or maintains its principal 
place of business, the principal trading market of the company, what government, agency or instrumentality 
issued or guaranteed the security, where the company&#x2019;s revenues or profits are derived, and whether 
the company is in the Portfolio&#x2019;s benchmark. As a non-fundamental policy, under normal circumstances, 
the Portfolio will invest at least 80% of its net assets in equity securities. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the International Vector Equity Portfolio&#x2019;s exposure to an 
eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Vector 
Equity Portfolio may gain exposure to companies associated with approved markets by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio may purchase or sell futures contracts and options on futures contracts 
for foreign or U.S. equity securities and indices to increase or decrease equity market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Vector Equity Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_PrincipalRisks2_S000022895Summary43Member"
      id="ixv-44758">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x125x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_RiskLoseMoneyMember_S000022895Summary43Member"
      id="ixv-274294">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_RiskNotInsuredMember_S000022895Summary43Member"
      id="ixv-274295">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_EquityMarketRisk2_S000022895Summary43Member"
      id="ixv-44767">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of equity securities, and a fund that 
owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of 
falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_SmallandMid-CapCompanyRisk2_S000022895Summary43Member"
      id="ixv-44772">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_ForeignSecuritiesandCurrenciesRisk2_S000022895Summary43Member"
      id="ixv-44777">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_GeographicFocusRisk2_S000022895Summary43Member"
      id="ixv-44784">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_ProfitabilityInvestmentRisk2_S000022895Summary43Member"
      id="ixv-44789">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_ValueInvestmentRisk2_S000022895Summary43Member"
      id="ixv-44793">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_DerivativesRisk2_S000022895Summary43Member"
      id="ixv-44798">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_SecuritiesLendingRisk2_S000022895Summary43Member"
      id="ixv-44802">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;including the value of investments made with cash collateral. Securities lending 
also may have certain adverse tax consequences.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_OperationalRisk2_S000022895Summary43Member"
      id="ixv-44811">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_CyberSecurityRisk2_S000022895Summary43Member"
      id="ixv-44816">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274296"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-44826">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274297">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274298"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274299">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274300">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274301">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274302">International 
Vector Equity Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274303">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274304">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274305"
      unitRef="pure">0.1965</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274306">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274307"
      unitRef="pure">-0.3027</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274308">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274309">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274310">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274311"
      unitRef="pure">0.3827</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274312"
      unitRef="pure">0.1123</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274313"
      unitRef="pure">0.0932</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274314">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274315"
      unitRef="pure">0.3719</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274316"
      unitRef="pure">0.1033</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274317"
      unitRef="pure">0.0845</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      id="ixv-274318">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274319"
      unitRef="pure">0.2338</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274320"
      unitRef="pure">0.0876</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000066387Member_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274321"
      unitRef="pure">0.0740</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3139_S000022895Member_S000022895Summary43Member"
      id="ixv-274322">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000022895Member_S000022895Summary43Member"
      id="ixv-274323">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3140_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274324"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3140_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274325"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3140_S000022895Member_S000022895Summary43Member"
      decimals="INF"
      id="ixv-274326"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274327"> International High Relative 
Profitability Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274328"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45132">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International High Relative Profitability Portfolio (the &#x201c;Portfolio&#x201d;) 
is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274329"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45139">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274330">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274331">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274332"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274333"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274334"
      unitRef="pure">0.0030</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="_3428_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274336"
      unitRef="pure">0.0029</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274337">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45222">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274338"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274339"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274340"
      unitRef="usd">95</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274341"
      unitRef="usd">95</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274342"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274343"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274344"
      unitRef="usd">168</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274345"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274346"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274347"
      unitRef="usd">380</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274348">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45249">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;14%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274349"
      unitRef="pure">0.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274350"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45262">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the International High Relative Profitability Portfolio&#x2019;s investment objective, Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines 
research, portfolio design, portfolio management, and trading functions. As further described below, 
the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s 
research, while balancing risk through broad diversification across companies, sectors, and countries. 
The Advisor&#x2019;s portfolio management and trading processes further balance those long-term drivers 
of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International High Relative Profitability Portfolio is designed to purchase securities of large non-U.S. 
companies that the Advisor determines to have high profitability relative to other large capitalization 
companies in the same country or region, at the time of purchase. An equity issuer is considered to have 
high profitability because it has high earnings or profits from operations in relation to its book value 
or assets. The Portfolio may emphasize certain stocks, including smaller capitalization companies, lower 
relative price stocks, and/or higher profitability stocks as compared to their representation in the 
large-cap high profitability segments of developed non-U.S. markets. The Portfolio&#x2019;s increased 
exposure to such stocks may be achieved by overweighting and/or underweighting eligible stocks based 
on their market capitalization, relative price, and/or profitability characteristics. An equity issuer 
is considered to have a low relative price (i.e., a value stock) primarily because it has a low price 
in relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. The criteria the Advisor uses for assessing relative 
price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International High Relative Profitability Portfolio intends to purchase securities of large non-U.S. 
companies associated with developed market countries that the Advisor has designated as approved markets. 
As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its 
net assets in securities of companies in the particular non-U.S. markets in which the Portfolio invests. 
The Advisor determines the minimum market capitalization of a large company with respect to each country 
or region in which the Portfolio invests. Based on market capitalization data as of December 31, 2025, 
the market capitalization of a large company in any country or region in which the Portfolio invests 
would be $1,852 million or above. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the International High Relative Profitability Portfolio&#x2019;s exposure 
to an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International High 
Relative Profitability Portfolio may gain exposure to companies in an approved market by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio also may purchase or sell futures contracts and options on futures contracts 
for foreign or U.S. equity securities and indices to increase or decrease equity market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency. The Portfolio may invest 
in exchange-traded funds (&#x201c;ETFs&#x201d;) for the purpose of gaining exposure to the equity markets 
while maintaining liquidity.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International High Relative Profitability 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_PrincipalRisks2_S000057238Summary44Member"
      id="ixv-45269">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x135x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_RiskLoseMoneyMember_S000057238Summary44Member"
      id="ixv-274351">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_RiskNotInsuredMember_S000057238Summary44Member"
      id="ixv-274352">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_ForeignSecuritiesandCurrenciesRisk2_S000057238Summary44Member"
      id="ixv-45278">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because of: (a) economic or 
political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors 
holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency 
will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced 
to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio 
does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject 
to uniform accounting, auditing and financial reporting standards and there may be less reliable and 
publicly available financial and other information about such issuers, as compared to U.S. issuers. A 
fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or 
interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, 
and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic 
issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks 
as the foreign securities that they evidence or into which they may be converted. In addition, the underlying 
issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, 
are under no obligation to distribute shareholder communications to the holders of such receipts, or 
to pass through to them any voting rights with respect to the deposited securities. Depositary receipts 
that are not sponsored by the issuer may be less liquid and there may be less readily available public 
information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_GeographicFocusRisk2_S000057238Summary44Member"
      id="ixv-45285">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments in securities of issuers located in a particular 
country or region, the fund may be subjected, to a greater extent than if its investments were less focused, 
to the risks of volatile economic cycles and/or conditions and developments that may be particular to 
that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, 
political, regulatory, economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_EquityMarketRisk2_S000057238Summary44Member"
      id="ixv-45290">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_ProfitabilityInvestmentRisk2_S000057238Summary44Member"
      id="ixv-45295">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_ValueInvestmentRisk2_S000057238Summary44Member"
      id="ixv-45299">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_DerivativesRisk2_S000057238Summary44Member"
      id="ixv-45304">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_SecuritiesLendingRisk2_S000057238Summary44Member"
      id="ixv-45308">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_OperationalRisk2_S000057238Summary44Member"
      id="ixv-45312">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_CyberSecurityRisk2_S000057238Summary44Member"
      id="ixv-45322">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274353"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-45332">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274354">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274355"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274356">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274357">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274358">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274359">International 
High Relative Profitability Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274360">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274361">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274362"
      unitRef="pure">0.1860</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274363">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274364"
      unitRef="pure">-0.2151</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274365">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274366">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274367">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274368"
      unitRef="pure">0.2702</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274369"
      unitRef="pure">0.0726</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="_3489_"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274371">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274372"
      unitRef="pure">0.2620</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274373"
      unitRef="pure">0.0662</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="_3493_"
      unitRef="pure">0.0718</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      id="ixv-274375">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274376"
      unitRef="pure">0.1660</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274377"
      unitRef="pure">0.0565</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsAndSalesMember_C000182416Member_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="_3497_"
      unitRef="pure">0.0617</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3141_S000057238Member_S000057238Summary44Member"
      id="ixv-274379">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000057238Member_S000057238Summary44Member"
      id="ixv-274380">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3142_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274381"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3142_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="ixv-274382"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170516_20251231_MSCIWorldexUSAIndexnetdividends3142_S000057238Member_S000057238Summary44Member"
      decimals="INF"
      id="_3502_"
      unitRef="pure">0.0814</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274384"> World ex U.S. Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274385"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45661">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the World ex U.S. Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274386"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45668">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274387">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274388">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274389"
      unitRef="pure">0.0032</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274390"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274391"
      unitRef="pure">0.0019</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274392"
      unitRef="pure">0.0056</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="_3514_"
      unitRef="pure">-0.0019</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274394"
      unitRef="pure">0.0037</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274395">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45756">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274396"
      unitRef="usd">38</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274397"
      unitRef="usd">38</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274398"
      unitRef="usd">160</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274399"
      unitRef="usd">160</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274400"
      unitRef="usd">294</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274401"
      unitRef="usd">294</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274402"
      unitRef="usd">294</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274403"
      unitRef="usd">683</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274404"
      unitRef="usd">683</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274405"
      unitRef="usd">683</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274406">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45783">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; based on the weighted 
average portfolio turnover ratios of each of the Portfolio's underlying investments. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274407"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274408"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45796">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the World ex U.S. Value Portfolio&#x2019;s and the Underlying Funds&#x2019; investment objectives, 
Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach 
that combines research, portfolio design, portfolio management, and trading functions. As further described 
below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; designs emphasize long-term drivers of expected 
returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Value Portfolio seeks to achieve its investment 
objective through exposure to a broad portfolio of securities of non-U.S. companies associated with countries 
with developed and emerging markets, which may include frontier markets (emerging market countries in 
an earlier stage of development), that the Advisor believes to be lower relative price stocks at the 
time of purchase. To achieve this exposure, the Advisor will currently generally purchase shares of The 
DFA International Value Series (the &#x201c;DFA International Value Series&#x201d;), DFA International 
Small Cap Value Portfolio, and Dimensional Emerging Markets Value Fund (the &#x201c;Underlying Funds&#x201d;), 
which are other funds managed by the Advisor. Periodically, the Advisor will review the allocations for 
the Portfolio in each Underlying Fund and may adjust allocations to the Underlying Funds or may add or 
remove Underlying Funds in the Portfolio without notice to shareholders. In addition to, or in place 
of, investments in the Underlying Funds, the Portfolio also is permitted to invest directly in the same 
types of securities of companies that are described in this Prospectus as eligible investments for the 
Underlying Funds. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily 
because it has a low price in relation to its book value. In assessing relative price, the Advisor may 
consider additional factors such as price to cash flow or price to earnings ratios. The Advisor may consider 
the relative market capitalization weighting of developed and emerging markets within the universe of 
eligible securities when allocating Portfolio investments among the Underlying Funds or securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA International Value Series invests in large lower relative price companies associated with developed 
market countries and the DFA International Small Cap Value Portfolio invests in small lower relative 
price companies associated with developed market countries. Generally, the Advisor determines if a company 
is large or small based on its market capitalization. A company&#x2019;s market capitalization is the 
number of its shares outstanding times its price per share. Under a market capitalization weighted approach, 
companies with higher market capitalizations generally represent a larger proportion of an Underlying 
Fund than companies with relatively lower market capitalizations. The Dimensional Emerging Markets Value 
Fund may purchase securities of lower relative price companies associated with emerging markets, including 
frontier markets, across all market capitalizations. With respect to each Underlying Fund, the Advisor 
may limit or fix the Underlying Fund&#x2019;s exposure to a particular country, region or issuer. The 
Portfolio and Underlying Funds may emphasize certain stocks, including smaller capitalization companies, 
lower relative price stocks, and/or higher profitability stocks as compared to their representation in 
the countries and/or regions in which the Portfolio and/or Underlying Funds are authorized to invest. 
An equity issuer is considered to have high profitability because it has high earnings or profits from 
operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative 
price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Value 
Portfolio and each Underlying Fund intend to purchase securities of companies associated with countries 
that the Advisor has identified as approved markets for investment for such Portfolio or Underlying Fund. 
As a non-fundamental policy, under normal circumstances, at least 80% of the Portfolio&#x2019;s net assets 
will be invested directly, or indirectly through its investment in the Underlying Funds, in securities 
of non-U.S. companies. The Portfolio, directly or indirectly through its investment in the Underlying 
Funds, intends to invest its assets to gain exposure to at least three different countries, excluding 
the United States.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the World ex U.S. 
Value Portfolio&#x2019;s and/or Underlying Funds&#x2019; exposure to an eligible company, or exclude a 
company, based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Value Portfolio and Underlying Funds may gain exposure to companies 
associated with approved markets by purchasing equity securities in the form of depositary receipts which 
may be domiciled or traded outside the issuer&#x2019;s domicile country.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World ex U.S. Value Portfolio and each Underlying Fund may purchase or sell futures contracts and options 
on futures contracts for equity securities and indices to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio or Underlying Fund. Because 
many of the Portfolio&#x2019;s and Underlying Funds&#x2019; investments may be denominated in foreign currencies, 
the Portfolio and each Underlying Fund may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Value 
Portfolio and Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
summary of the investment strategies and policies of the Underlying Funds in which the World ex U.S. 
Value Portfolio invests as of the date of this Prospectus (other than the Underlying Funds that are included 
elsewhere in the Portfolio&#x2019;s Prospectus) is described in the Portfolio&#x2019;s Prospectus in the 
section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_PrincipalRisks2_S000029683Summary45Member"
      id="ixv-45812">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x145x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_RiskLoseMoneyMember_S000029683Summary45Member"
      id="ixv-274409">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_RiskNotInsuredMember_S000029683Summary45Member"
      id="ixv-274410">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_FundofFundsRisk2_S000029683Summary45Member"
      id="ixv-45818">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_EquityMarketRisk2_S000029683Summary45Member"
      id="ixv-45823">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_ForeignSecuritiesandCurrenciesRisk2_S000029683Summary45Member"
      id="ixv-45828">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks as the foreign securities 
that they evidence or into which they may be converted. In addition, the underlying issuers of certain 
depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation 
to distribute shareholder communications to the holders of such receipts, or to pass through to them 
any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored 
by the issuer may be less liquid and there may be less readily available public information about the 
issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_SmallandMid-CapCompanyRisk2_S000029683Summary45Member"
      id="ixv-45839">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities 
of small and mid-cap companies are often less liquid than those of large companies and this could make 
it difficult to sell a small or mid-cap company security at a desired time or price. As a result, small 
and mid-cap company stocks may fluctuate relatively more in price. In general, small and mid-capitalization 
companies are also more vulnerable than larger companies to adverse business or economic developments 
and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_ValueInvestmentRisk2_S000029683Summary45Member"
      id="ixv-45844">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies. Value stocks can react differently 
to political, economic, and industry developments than the market as a whole and other types of stocks. 
Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_ProfitabilityInvestmentRisk2_S000029683Summary45Member"
      id="ixv-45849">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_EmergingMarketsRisk2_S000029683Summary45Member"
      id="ixv-45853">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_ChinaInvestmentsRisk2_S000029683Summary45Member"
      id="ixv-45860">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, Hong Kong, and Taiwan. 
China, Hong Kong, and Taiwan are highly interconnected and interdependent, with relationships built on 
trade, finance, culture, and politics. Despite prior economic and trade reforms and the prior expansion 
of private ownership of companies in certain sectors, the Chinese government still exercises substantial 
influence over many aspects of the private sector and may own or control many companies, including by 
embedding Chinese Communist Party or People&#x2019;s Armed Forces Department personnel in Chinese companies. 
In addition, the Chinese government continues to maintain a major role in economic policy making and 
may alter or discontinue economic or trade reforms at any time. Investing in China involves risks of 
losses due to expropriation, nationalization, confiscation of assets and property, and the imposition 
of restrictions on foreign investments and on repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments 
in China, Hong Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating 
relations with the U.S. as economic and strategic competition between the U.S. and China intensifies, 
which could result in further tariffs, trade restrictions, sanctions, or other actions that adversely 
impact the value of such investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. Certain securities issued by companies located or operating in 
China, such as China A-shares, are also subject to trading restrictions, quota limitations and less market 
liquidity, which could pose risks to a fund investing in such securities. In addition, investments in 
special structures that utilize contractual arrangements to provide exposure to certain Chinese companies, 
known as variable interest entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts 
and/or prohibits foreign investments may present additional risks. The Chinese government&#x2019;s acceptance 
of the VIE structure is evolving. It is uncertain whether Chinese officials and regulators will withdraw 
their acceptance of the structure generally, or with respect to certain industries, or whether Chinese 
courts or arbitration bodies would &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;decline to enforce the contractual rights of foreign investors, each of which 
would likely have significant, detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_DerivativesRisk2_S000029683Summary45Member"
      id="ixv-45871">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_SecuritiesLendingRisk2_S000029683Summary45Member"
      id="ixv-45875">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_OperationalRisk2_S000029683Summary45Member"
      id="ixv-45879">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_CyberSecurityRisk2_S000029683Summary45Member"
      id="ixv-45884">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274411"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-45894">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274412">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274413"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274414">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274415">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274416">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274417">World 
ex U.S. Value Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274418">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274419">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274420"
      unitRef="pure">0.2168</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274421">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274422"
      unitRef="pure">-0.3209</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274423">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274424">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274425">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274426"
      unitRef="pure">0.4049</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274427"
      unitRef="pure">0.1387</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274428"
      unitRef="pure">0.0995</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274429">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274430"
      unitRef="pure">0.3903</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274431"
      unitRef="pure">0.1279</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274432"
      unitRef="pure">0.0897</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      id="ixv-274433">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274434"
      unitRef="pure">0.2466</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274435"
      unitRef="pure">0.1087</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000091238Member_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274436"
      unitRef="pure">0.0787</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSAIMIValueIndexnetdividends3143_S000029683Member_S000029683Summary45Member"
      id="ixv-274437">MSCI All Country World ex USA IMI 
Value Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000029683Member_S000029683Summary45Member"
      id="ixv-274438">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSAIMIValueIndexnetdividends3144_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274439"
      unitRef="pure">0.3851</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSAIMIValueIndexnetdividends3144_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274440"
      unitRef="pure">0.1155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSAIMIValueIndexnetdividends3144_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274441"
      unitRef="pure">0.0873</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSAIMIIndexnetdividends3145_S000029683Member_S000029683Summary45Member"
      id="ixv-274442">MSCI All Country World ex USA IMI 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3146_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274443"
      unitRef="pure">0.3196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3146_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274444"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3146_S000029683Member_S000029683Summary45Member"
      decimals="INF"
      id="ixv-274445"
      unitRef="pure">0.0837</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274446"> World ex U.S. Core Equity 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274447"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46232">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the World ex U.S. Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274448"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46239">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274449">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274450">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274451"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274452"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274453"
      unitRef="pure">0.0030</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274454">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46298">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274455"
      unitRef="usd">31</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274456"
      unitRef="usd">31</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274457"
      unitRef="usd">97</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274458"
      unitRef="usd">97</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274459"
      unitRef="usd">169</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274460"
      unitRef="usd">169</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274461"
      unitRef="usd">169</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274462"
      unitRef="usd">381</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274463"
      unitRef="usd">381</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274464"
      unitRef="usd">381</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274465">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46325">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274466"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274467"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46335">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the World ex U.S. Core Equity 
Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Core Equity Portfolio is designed to provide 
exposure to a broad and diverse group of equity securities within a market capitalization weighted universe 
(e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. 
companies associated with countries with developed and emerging &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;markets that have been authorized for investment by the Advisor&#x2019;s Investment 
Committee (the &#x201c;non-U.S. Universe&#x201d;). The Portfolio invests in companies of all sizes, with 
meaningfully increased exposure to smaller capitalization, lower relative price, and higher profitability 
companies as compared to their representation in the non-U.S. Universe. The Portfolio&#x2019;s meaningfully 
increased exposure to smaller capitalization, lower relative price, and higher profitability companies 
may be achieved by decreasing the allocation of the Portfolio&#x2019;s assets to larger capitalization, 
higher relative price, or lower profitability companies relative to their weight in the non-U.S. Universe. 
An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because 
it has a high price in relation to its book value. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time. The Advisor determines company 
size on a country or region specific basis and based primarily on market capitalization. As a non-fundamental 
policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in non-U.S. 
equity securities and/or investments that provide exposure to non-U.S. securities. The Portfolio intends 
to invest its assets to gain exposure to at least three different countries, excluding the United States.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the World ex U.S. Core Equity Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Core Equity 
Portfolio may gain exposure to companies associated with approved markets by purchasing equity securities 
in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile 
country. The Portfolio may also invest in China A-shares (equity securities of companies listed in China) 
and variable interest entities (special structures that utilize contractual arrangements to provide exposure 
to certain Chinese companies). The Portfolio may purchase or sell futures contracts and options on futures 
contracts for foreign or U.S. equity securities and indices to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World ex U.S. Core Equity Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_PrincipalRisks2_S000039915Summary46Member"
      id="ixv-46346">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x155x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_RiskLoseMoneyMember_S000039915Summary46Member"
      id="ixv-274468">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_RiskNotInsuredMember_S000039915Summary46Member"
      id="ixv-274469">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_EquityMarketRisk2_S000039915Summary46Member"
      id="ixv-46352">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_ProfitabilityInvestmentRisk2_S000039915Summary46Member"
      id="ixv-46357">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_ValueInvestmentRisk2_S000039915Summary46Member"
      id="ixv-46361">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_SmallandMid-CapCompanyRisk2_S000039915Summary46Member"
      id="ixv-46371">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_ForeignSecuritiesandCurrenciesRisk2_S000039915Summary46Member"
      id="ixv-46376">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_EmergingMarketsRisk2_S000039915Summary46Member"
      id="ixv-46383">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_ChinaInvestmentsRisk2_S000039915Summary46Member"
      id="ixv-46390">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;limitations and less market liquidity, which could pose risks to a fund investing 
in such securities. In addition, investments in special structures that utilize contractual arrangements 
to provide exposure to certain Chinese companies, known as variable interest entities (&#x201c;VIEs&#x201d;), 
that operate in sectors in which China restricts and/or prohibits foreign investments may present additional 
risks. The Chinese government&#x2019;s acceptance of the VIE structure is evolving. It is uncertain whether 
Chinese officials and regulators will withdraw their acceptance of the structure generally, or with respect 
to certain industries, or whether Chinese courts or arbitration bodies would decline to enforce the contractual 
rights of foreign investors, each of which would likely have significant, detrimental, and possibly permanent 
losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_DerivativesRisk2_S000039915Summary46Member"
      id="ixv-46401">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_SecuritiesLendingRisk2_S000039915Summary46Member"
      id="ixv-46405">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_OperationalRisk2_S000039915Summary46Member"
      id="ixv-46409">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_CyberSecurityRisk2_S000039915Summary46Member"
      id="ixv-46414">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274470"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-46424">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274471">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274472"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274473">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274474">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274475">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274476">World 
ex U.S. Core Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274477">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274478">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274479"
      unitRef="pure">0.1954</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274480">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274481"
      unitRef="pure">-0.2806</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274482">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274483">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274484">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274485"
      unitRef="pure">0.3375</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274486"
      unitRef="pure">0.0952</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274487"
      unitRef="pure">0.0904</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274488">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274489"
      unitRef="pure">0.3263</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274490"
      unitRef="pure">0.0866</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274491"
      unitRef="pure">0.0828</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      id="ixv-274492">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274493"
      unitRef="pure">0.2060</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274494"
      unitRef="pure">0.0734</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000123798Member_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274495"
      unitRef="pure">0.0718</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSAIMIIndexnetdividends3147_S000039915Member_S000039915Summary46Member"
      id="ixv-274496">MSCI All Country World ex USA IMI 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039915Member_S000039915Summary46Member"
      id="ixv-274497">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3148_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274498"
      unitRef="pure">0.3196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3148_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274499"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3148_S000039915Member_S000039915Summary46Member"
      decimals="INF"
      id="ixv-274500"
      unitRef="pure">0.0837</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274501"> World Core Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274502"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46735">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the World Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274503"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46742">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274504">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274505">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274506"
      unitRef="pure">0.0022</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274507"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274508"
      unitRef="pure">0.0020</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274509"
      unitRef="pure">0.0044</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="_3697_"
      unitRef="pure">-0.0017</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274511"
      unitRef="pure">0.0027</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274512">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46830">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274513"
      unitRef="usd">28</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274514"
      unitRef="usd">28</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274515"
      unitRef="usd">124</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274516"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274517"
      unitRef="usd">229</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274518"
      unitRef="usd">229</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274519"
      unitRef="usd">229</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274520"
      unitRef="usd">538</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274521"
      unitRef="usd">538</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274522"
      unitRef="usd">538</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274523">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46857">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274524"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274525"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46870">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World Core Equity Portfolio is a &#x201c;fund of funds,&#x201d; which means that the Portfolio generally 
allocates its assets among other mutual funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
although it also has the ability to invest directly in securities. To achieve the Portfolio&#x2019;s and 
the Underlying Funds&#x2019; investment objectives, the Advisor implements an integrated investment approach 
that combines research, portfolio design, portfolio management, and trading functions. As further described 
below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; designs emphasize long-term drivers of expected 
returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World Core Equity Portfolio is designed to provide exposure 
to a broad portfolio of equity securities of both U.S. companies and non-U.S. companies associated with 
countries with developed and emerging markets, which may include frontier markets (emerging markets in 
an earlier stage of development), by primarily purchasing shares of U.S. Core Equity 1 Portfolio, International 
Core Equity 2 Portfolio and Emerging Markets Core Equity 2 Portfolio (the &#x201c;Underlying Funds&#x201d;). 
The Underlying Funds may have a modest to meaningful emphasis on securities of smaller, lower relative 
price, and higher profitability companies. The Portfolio may have exposure to companies in all the market 
capitalization ranges.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World Core Equity Portfolio typically allocates its investments 
among the following Underlying Funds: U.S. Core Equity 1 Portfolio; International Core Equity 2 Portfolio; 
and Emerging Markets Core Equity 2 Portfolio. Periodically, the Advisor will review the allocations for 
the Portfolio in each Underlying Fund and may adjust allocations to the Underlying Funds or may add or 
remove Underlying Funds in the Portfolio without notice to shareholders.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the World Core Equity Portfolio&#x2019;s 
net assets will be invested directly, or indirectly through its investment in the Underlying Funds, in 
equity securities. The World Core Equity Portfolio, directly or indirectly through its investment in 
the Underlying Funds, intends to invest its assets to gain exposure to at least three different countries, 
including the United States. As of the date of the Prospectus, the World Core Equity Portfolio, directly 
or indirectly through its investment in the Underlying Funds, invests approximately 61% of its net assets 
in U.S. companies. This percentage will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the World Core Equity Portfolio&#x2019;s and/or Underlying Funds&#x2019; 
exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as 
a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing a 
company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in assets 
divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics 
are subject to change from time to time. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World Core Equity 
Portfolio and each Underlying Fund may purchase or sell futures contracts and options on futures contracts 
for equity securities and indices to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio or Underlying Fund. Because many of the Portfolio&#x2019;s 
and certain Underlying Funds&#x2019; investments may be denominated in foreign currencies, the Portfolio 
and certain Underlying Funds may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency. The Portfolio and each Underlying Fund may invest in 
exchange-traded funds (&#x201c;ETFs&#x201d;) for the purposes of gaining exposure to the equity markets, 
while maintaining liquidity. In addition to money market instruments and other short-term investments, 
the Portfolio and each Underlying Fund may invest in affiliated and unaffiliated registered and unregistered 
money market funds. The Portfolio and Underlying Funds may invest in such money market funds and other 
short-term investments to manage cash pending investment in other securities or to maintain liquidity 
for the payment of redemptions or other purposes. Investments in ETFs and money market funds may involve 
a duplication of certain fees and expenses.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World Core Equity 
Portfolio and Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A summary of the investment strategies and policies of the 
Underlying Funds in which the World Core Equity Portfolio invests as of the date of this Prospectus (other 
than the Underlying Funds that are included elsewhere in the Portfolio&#x2019;s Prospectus) is described 
in the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_PrincipalRisks2_S000033391Summary47Member"
      id="ixv-46885">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x165x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_RiskLoseMoneyMember_S000033391Summary47Member"
      id="ixv-274526">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_RiskNotInsuredMember_S000033391Summary47Member"
      id="ixv-274527">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_FundofFundsRisk2_S000033391Summary47Member"
      id="ixv-46891">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_EquityMarketRisk2_S000033391Summary47Member"
      id="ixv-46896">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_ForeignSecuritiesandCurrenciesRisk2_S000033391Summary47Member"
      id="ixv-46901">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_SmallandMid-CapCompanyRisk2_S000033391Summary47Member"
      id="ixv-46908">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_ProfitabilityInvestmentRisk2_S000033391Summary47Member"
      id="ixv-46916">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_ValueInvestmentRisk2_S000033391Summary47Member"
      id="ixv-46920">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_EmergingMarketsRisk2_S000033391Summary47Member"
      id="ixv-46925">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_DerivativesRisk2_S000033391Summary47Member"
      id="ixv-46932">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_SecuritiesLendingRisk2_S000033391Summary47Member"
      id="ixv-46936">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_OperationalRisk2_S000033391Summary47Member"
      id="ixv-46940">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_CyberSecurityRisk2_S000033391Summary47Member"
      id="ixv-46945">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274528"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-46955">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;depend on an investor&#x2019;s tax situation and may differ from those shown in 
the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274529">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274530"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274531">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274532">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274533">In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274534">World 
Core Equity Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274535">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274536">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274537"
      unitRef="pure">0.2088</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274538">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274539"
      unitRef="pure">-0.2582</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274540">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274541">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274542">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274543"
      unitRef="pure">0.2218</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274544"
      unitRef="pure">0.1166</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274545"
      unitRef="pure">0.1161</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274546">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274547"
      unitRef="pure">0.2067</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274548"
      unitRef="pure">0.1071</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274549"
      unitRef="pure">0.1083</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      id="ixv-274550">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274551"
      unitRef="pure">0.1415</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274552"
      unitRef="pure">0.0912</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102631Member_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274553"
      unitRef="pure">0.0944</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3149_S000033391Member_S000033391Summary47Member"
      id="ixv-274554">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000033391Member_S000033391Summary47Member"
      id="ixv-274555">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3150_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274556"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3150_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274557"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3150_S000033391Member_S000033391Summary47Member"
      decimals="INF"
      id="ixv-274558"
      unitRef="pure">0.1145</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274559"> Selectively Hedged Global 
Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274560"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47268">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Selectively Hedged Global 
Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274561"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47275">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274562">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274563">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274564"
      unitRef="pure">0.0024</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274565"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274566"
      unitRef="pure">0.0023</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274567"
      unitRef="pure">0.0050</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="_3787_"
      unitRef="pure">-0.0019</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274569"
      unitRef="pure">0.0031</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274570">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47363">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274571"
      unitRef="usd">32</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274572"
      unitRef="usd">32</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274573"
      unitRef="usd">141</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274574"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274575"
      unitRef="usd">261</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274576"
      unitRef="usd">261</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274577"
      unitRef="usd">261</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274578"
      unitRef="usd">610</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274579"
      unitRef="usd">610</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274580"
      unitRef="usd">610</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274581">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47390">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;17%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274582"
      unitRef="pure">0.17</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274583"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47403">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Selectively Hedged Global Equity Portfolio is a &#x201c;fund of funds,&#x201d; which means that the Portfolio 
generally allocates its assets among other mutual funds managed by Dimensional Fund Advisors LP (the 
&#x201c;Advisor&#x201d;) although it also has the ability to invest directly in securities and derivatives. 
To achieve the Portfolio&#x2019;s and the Underlying Funds&#x2019; investment objectives, the Advisor implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; 
designs emphasize long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Selectively Hedged Global Equity Portfolio is designed to provide exposure to a broad portfolio of equity 
securities of both U.S. companies and non-U.S. companies associated with countries with developed and 
emerging markets, including frontier markets (emerging markets in an earlier stage of development), by 
primarily purchasing shares of the U.S. Core Equity 2 Portfolio, International Core Equity 2 Portfolio 
and Emerging Markets Core Equity 2 Portfolio (the &#x201c;Underlying Funds&#x201d;). The Underlying Funds 
may have increased exposure to smaller capitalization, lower relative price and/or higher profitability 
companies as compared to their representation in the countries and/or regions in which they are authorized 
to invest. Periodically, the Advisor will review the allocations for the Portfolio in each Underlying 
Fund and may adjust allocations to the Underlying Funds or may add or remove Underlying Funds in the 
Portfolio without notice to shareholders. The Advisor may consider the relative market capitalization 
weighting of developed and emerging markets within the universe of eligible securities along with other 
factors, including different valuation ratios and/or profitability, when allocating Portfolio investments 
among the Underlying Funds or securities. The Portfolio may have exposure to companies in all the market 
capitalization ranges. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, at least 80% of the Selectively Hedged Global Equity Portfolio&#x2019;s net 
assets will be invested directly, or indirectly through its investment in the Underlying Funds, in equity 
securities or investments that provide exposure to equity securities. In addition to, or in place of, 
investments in the Underlying Funds, the Portfolio is permitted to invest directly in the same types 
of equity securities of U.S. and non-U.S. companies that are eligible investments for the Underlying 
Funds. The Portfolio, directly or indirectly through its investment in the Underlying Funds, intends 
to invest its assets to gain exposure to at least three different countries, including the United States. 
As of the date of the Prospectus, the Portfolio, directly or indirectly through its investment in the 
Underlying Funds, invests approximately 57% of its net assets in U.S. companies. This percentage will 
change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce 
the Selectively Hedged Global Equity Portfolio&#x2019;s and/or Underlying Funds&#x2019; exposure to an 
eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Selectively Hedged Global 
Equity Portfolio invests directly or indirectly through its investment in the Underlying Funds in securities 
that may be denominated in foreign currencies. The Portfolio may hedge some or all of the currency exposure 
of the foreign securities by entering into foreign currency forward contracts, futures or other derivatives. 
Currencies may be hedged against the U.S. dollar or non-U.S. dollar currencies. The decision to hedge 
the Portfolio&#x2019;s currency exposure with respect to a foreign market will be based on, among other 
things, a comparison of the respective foreign and U.S. short-term interest rates and the Portfolio&#x2019;s 
existing exposure to a given foreign currency. The Portfolio and each Underlying Fund also may purchase 
or sell futures contracts and options on futures contracts to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio or Underlying Fund. In order 
to meet payment obligations with respect to such derivative transactions, the Portfolio may hold short-term 
fixed income obligations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Selectively Hedged Global Equity Portfolio and Underlying Funds may lend their 
portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A summary 
of the investment strategies and policies of the Underlying Funds in which the Selectively Hedged Global 
Equity Portfolio invests as of the date of this Prospectus (other than the Underlying Funds that are 
included elsewhere in the Portfolio&#x2019;s Prospectus) is described in the Portfolio&#x2019;s Prospectus 
in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES&#x201d;.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_PrincipalRisks2_S000034541Summary48Member"
      id="ixv-47417">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x175x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_RiskLoseMoneyMember_S000034541Summary48Member"
      id="ixv-274584">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_RiskNotInsuredMember_S000034541Summary48Member"
      id="ixv-274585">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_FundofFundsRisk2_S000034541Summary48Member"
      id="ixv-47423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_EquityMarketRisk2_S000034541Summary48Member"
      id="ixv-47428">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_ForeignSecuritiesandCurrenciesRisk2_S000034541Summary48Member"
      id="ixv-47433">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk 
but the Portfolio may directly hedge the foreign currency risk it is exposed to through its investment 
in the Underlying Funds or its direct investment in foreign securities. The Portfolio also may leave 
some or all of its foreign currency exposure unhedged. Currencies may be hedged against the U.S. dollar 
or non-U.S. dollar currencies.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject to 
uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly 
available financial and other information about such issuers, as compared to U.S. issuers. A fund may 
have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or interest 
and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, and 
obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic 
issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks 
as the foreign securities that they evidence or into which they may be converted. In addition, the underlying 
issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, 
are under no obligation to distribute shareholder communications to the holders of such receipts, or 
to pass through to them any voting rights with respect to the deposited securities. Depositary receipts 
that are not sponsored by the issuer may be less liquid and there may be less readily available public 
information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_SmallandMid-CapCompanyRisk2_S000034541Summary48Member"
      id="ixv-47440">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mid-capitalization companies are also more vulnerable than larger companies to 
adverse business or economic developments and they may have more limited resources.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_ProfitabilityInvestmentRisk2_S000034541Summary48Member"
      id="ixv-47450">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_ValueInvestmentRisk2_S000034541Summary48Member"
      id="ixv-47454">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_EmergingMarketsRisk2_S000034541Summary48Member"
      id="ixv-47459">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_DerivativesRisk2_S000034541Summary48Member"
      id="ixv-47466">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward 
contracts, whose value is derived from that of other assets, rates or indices. Derivatives can be used 
for hedging (attempting to reduce risk by offsetting one investment position with another) or non-hedging 
purposes. Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy 
will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause 
losses if the market moves in a manner different from that anticipated by a fund or if the cost of the 
derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally not possible 
to precisely match the foreign currency exposure of such foreign currency forward contracts to the value 
of the securities involved due to fluctuations in the market values of such securities and cash flows 
into and out of a fund between the date a foreign currency forward contract is entered into and the date 
it expires. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with 
respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying 
asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_SecuritiesLendingRisk2_S000034541Summary48Member"
      id="ixv-47470">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_OperationalRisk2_S000034541Summary48Member"
      id="ixv-47474">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_CyberSecurityRisk2_S000034541Summary48Member"
      id="ixv-47479">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274586"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-47492">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274587">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274588"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274589">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274590">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274591">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274592">Selectively 
Hedged Global Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274593">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274594">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274595"
      unitRef="pure">0.2060</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274596">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274597"
      unitRef="pure">-0.2583</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274598">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274599">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274600">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274601"
      unitRef="pure">0.2142</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274602"
      unitRef="pure">0.1236</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274603"
      unitRef="pure">0.1185</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274604">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274605"
      unitRef="pure">0.2053</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274606"
      unitRef="pure">0.1064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274607"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      id="ixv-274608">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274609"
      unitRef="pure">0.1332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274610"
      unitRef="pure">0.0938</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106201Member_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274611"
      unitRef="pure">0.0940</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3151_S000034541Member_S000034541Summary48Member"
      id="ixv-274612">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000034541Member_S000034541Summary48Member"
      id="ixv-274613">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3152_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274614"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3152_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274615"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3152_S000034541Member_S000034541Summary48Member"
      decimals="INF"
      id="ixv-274616"
      unitRef="pure">0.1145</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274617"> Emerging Markets Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274618"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-47800">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Emerging Markets Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation. The Emerging Markets Portfolio is a Feeder Portfolio and pursues its objective 
by investing substantially all of its assets in its corresponding Master Fund, The Emerging Markets Series 
(the &#x201c;Emerging Markets Series&#x201d; or the &#x201c;Series&#x201d;) of The DFA Investment Trust Company 
(the &#x201c;Trust&#x201d;), which has the same investment objective and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274619"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-47807">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274620">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274621">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="_3873_"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="_3874_"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="_3875_"
      unitRef="pure">0.0046</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="_3876_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="_3877_"
      unitRef="pure">0.0036</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274627">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-47889">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274628"
      unitRef="usd">37</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274629"
      unitRef="usd">37</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274630"
      unitRef="usd">116</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274631"
      unitRef="usd">116</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274632"
      unitRef="usd">202</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274633"
      unitRef="usd">202</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274634"
      unitRef="usd">202</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274635"
      unitRef="usd">456</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274636"
      unitRef="usd">456</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274637"
      unitRef="usd">456</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274638">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-47916">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274639"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274640"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-47931">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Portfolio invests 
substantially all of its assets in the Emerging Markets Series. To achieve the Portfolio&#x2019;s and 
the Series&#x2019; investment objectives, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Series&#x2019; design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Series is designed to purchase a broad 
market coverage of larger companies associated with emerging markets, which may include frontier markets 
(emerging market countries in an earlier stage of development), authorized for investment by the Advisor&#x2019;s 
Investment Committee (&#x201c;Approved Markets&#x201d;). The Advisor&#x2019;s definition of large varies 
across countries and is based primarily on market capitalization. A company&#x2019;s market capitalization 
is the number of its shares outstanding times its price per share. In each country authorized for investment, 
the Advisor first ranks eligible companies listed on selected exchanges based on the companies&#x2019; 
market capitalizations. The Advisor then defines the minimum market capitalization for a large company 
in that country. For example, based on market capitalization data as of December 31, 2025, Mexico had 
a size threshold of $5,937 million or above, and Czech Republic had a size threshold of $10,743 million 
or above. These thresholds will change due to market conditions. In addition, the Advisor may consider 
a company&#x2019;s size, relative price, and/or profitability relative to other eligible companies when 
making investment decisions for the Series. An equity issuer is considered to have a low relative price 
(i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Emerging Markets Series will invest at least 
80% of its net assets in emerging markets investments that are defined in the Prospectus as Approved 
Market securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Emerging Markets 
Series&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum and short-run reversals. In addition, the Advisor seeks to reduce 
trading costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Series may gain exposure to companies associated with Approved Markets by purchasing 
equity securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Series may also invest in China A-shares (equity securities of companies listed 
in China) and variable interest entities (special structures that utilize contractual arrangements to 
provide exposure to certain Chinese companies). The Series and the Emerging Markets Portfolio each may 
purchase or sell futures contracts and options on futures contracts for Approved Market or other equity 
market securities and indices, including those of the United States, to increase or decrease equity market 
exposure based on actual or expected cash inflows to or outflows from the Series or Portfolio. Because 
many of the Series&#x2019; and the Portfolio&#x2019;s investments may be denominated in foreign currencies, 
the Series and the Portfolio may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Series may 
lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_PrincipalRisks2_S000000957Summary49Member"
      id="ixv-47938">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x185x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_RiskLoseMoneyMember_S000000957Summary49Member"
      id="ixv-274641">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_RiskNotInsuredMember_S000000957Summary49Member"
      id="ixv-274642">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_EquityMarketRisk2_S000000957Summary49Member"
      id="ixv-47949">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_ForeignSecuritiesandCurrenciesRisk2_S000000957Summary49Member"
      id="ixv-47954">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_GeographicFocusRisk2_S000000957Summary49Member"
      id="ixv-47961">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_EmergingMarketsRisk2_S000000957Summary49Member"
      id="ixv-47966">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_ChinaInvestmentsRisk2_S000000957Summary49Member"
      id="ixv-47973">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. Certain securities issued by companies located or operating in 
China, such as China A-shares, are also subject to trading restrictions, quota limitations and less market 
liquidity, which could pose risks to a fund investing in such securities. In addition, investments in 
special structures that utilize contractual arrangements to provide exposure to certain Chinese companies, 
known as variable interest entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts 
and/or prohibits foreign investments may present additional risks. The Chinese government&#x2019;s acceptance 
of the VIE structure is evolving. It is uncertain whether Chinese officials and regulators will withdraw 
their acceptance of the structure generally, or with respect to certain industries, or whether Chinese 
courts or arbitration bodies would decline to enforce the contractual rights of foreign investors, each 
of which would likely have significant, detrimental, and possibly permanent losses on the value of such 
investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_ProfitabilityInvestmentRisk2_S000000957Summary49Member"
      id="ixv-47984">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_ValueInvestmentRisk2_S000000957Summary49Member"
      id="ixv-47988">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_DerivativesRisk2_S000000957Summary49Member"
      id="ixv-47993">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_SecuritiesLendingRisk2_S000000957Summary49Member"
      id="ixv-47997">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_OperationalRisk2_S000000957Summary49Member"
      id="ixv-48001">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_CyberSecurityRisk2_S000000957Summary49Member"
      id="ixv-48006">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274644"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-48016">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;after taxes) is not an indication of future results. Updated performance information 
for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274645">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274646"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274648">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274649">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274650">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274651">Emerging 
Markets Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274652">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274653">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274654"
      unitRef="pure">0.2024</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274655">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274656"
      unitRef="pure">-0.2713</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274657">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274658">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274659">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274660"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274661"
      unitRef="pure">0.0659</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274662"
      unitRef="pure">0.0917</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274663">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274664"
      unitRef="pure">0.3272</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274665"
      unitRef="pure">0.0558</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274666"
      unitRef="pure">0.0839</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      id="ixv-274667">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274668"
      unitRef="pure">0.2042</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274669"
      unitRef="pure">0.0491</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002708Member_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274670"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3153_S000000957Member_S000000957Summary49Member"
      id="ixv-274671">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000957Member_S000000957Summary49Member"
      id="ixv-274672">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3154_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274673"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3154_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274674"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsIndexnetdividends3154_S000000957Member_S000000957Summary49Member"
      decimals="INF"
      id="ixv-274675"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274676"> Emerging Markets Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274677"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48324">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Emerging Markets Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation. The Emerging Markets Value Portfolio is a Feeder Portfolio and pursues 
its objective by investing substantially all of its assets in its corresponding Master Fund, the Dimensional 
Emerging Markets Value Fund (the &#x201c;Emerging Markets Value Fund&#x201d;), which has the same investment 
objective and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274678"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48331">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274679">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274680">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="_3962_"
      unitRef="pure">0.0048</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="_3963_"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="_3964_"
      unitRef="pure">0.0055</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="_3965_"
      unitRef="pure">-0.0011</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="_3966_"
      unitRef="pure">0.0044</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274686">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. The costs for the Portfolio reflect the 
net expenses of the Portfolio that result from the Temporary Fee Waiver in the first year only. Although 
your actual costs may be higher or lower, based on these assumptions your costs whether you redeem or 
hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274687"
      unitRef="usd">45</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274688"
      unitRef="usd">45</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274689"
      unitRef="usd">143</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274690"
      unitRef="usd">143</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274691"
      unitRef="usd">251</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274692"
      unitRef="usd">251</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274693"
      unitRef="usd">251</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274694"
      unitRef="usd">566</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274695"
      unitRef="usd">566</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274696"
      unitRef="usd">566</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274697">PORTFOLIO 
TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48453">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund generally pays transaction costs, 
such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). A 
higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund 
shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses 
or in the Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the 
Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of 
the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274698"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274699"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48463">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Value Portfolio invests 
substantially all of its assets in the Emerging Markets Value Fund. To achieve the Portfolio&#x2019;s 
and the Series&#x2019; investment objectives, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Series&#x2019; design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Value Fund is designed to purchase emerging 
market equity securities that are deemed by the Advisor to be lower relative price stocks at the time 
of purchase and associated with emerging markets, which may include frontier markets (emerging market 
countries in an earlier stage of development), authorized for investment by the Advisor&#x2019;s Investment 
Committee (&#x201c;Approved Markets&#x201d;). An equity issuer is considered to have a low relative price 
(i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. The Emerging Markets Value Fund may emphasize certain stocks, including smaller capitalization 
companies, lower relative price stocks, and/or higher profitability stocks as compared to their representation 
in the value segments of the Approved Markets in which the Fund is authorized to invest. An equity issuer 
is considered to have high profitability because it has high earnings or profits from operations in relation 
to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability 
are subject to change from time to time. As a non-fundamental policy, under normal circumstances, the 
Emerging Markets Value Fund will invest at least 80% of its net assets in emerging markets investments 
that are defined in the Prospectus as Approved Markets securities. The Emerging Markets Value Fund may 
purchase emerging market equity securities across all market capitalizations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the Emerging Market Value Fund&#x2019;s exposure to an eligible company, 
or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time 
to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that 
looks for opportunities to participate in the available market liquidity, while managing turnover and 
explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Value Fund may gain exposure to companies 
associated with Approved Markets by purchasing equity securities in the form of depositary receipts, 
which may be listed or traded outside the issuer&#x2019;s domicile country. The Emerging Markets Value 
Fund may also invest in China A-shares (equity securities of companies listed in China) and variable 
interest entities (special structures that utilize contractual arrangements to provide exposure to certain 
Chinese companies). The Emerging Markets Value Portfolio and the Emerging Markets Value Fund each may 
purchase or sell futures contracts and options on futures contracts for Approved Market or other equity 
market securities and indices, including those of the United States, to increase or decrease equity market 
exposure based on actual or expected cash inflows to or outflows from the Portfolio or Emerging Markets 
Value Fund. Because many of the Emerging Markets Value Fund&#x2019;s and the Portfolio&#x2019;s investments 
may be denominated in foreign currencies, the Emerging Markets Value Fund and the Portfolio may enter 
into foreign currency exchange transactions, including foreign currency forward contracts, in connection 
with the settlement of foreign securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Value Fund may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_PrincipalRisks2_S000000959Summary50Member"
      id="ixv-48472">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x195x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_RiskLoseMoneyMember_S000000959Summary50Member"
      id="ixv-274700">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_RiskNotInsuredMember_S000000959Summary50Member"
      id="ixv-274701">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_EquityMarketRisk2_S000000959Summary50Member"
      id="ixv-48478">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_ForeignSecuritiesandCurrenciesRisk2_S000000959Summary50Member"
      id="ixv-48483">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_GeographicFocusRisk2_S000000959Summary50Member"
      id="ixv-48490">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_EmergingMarketsRisk2_S000000959Summary50Member"
      id="ixv-48495">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_ChinaInvestmentsRisk2_S000000959Summary50Member"
      id="ixv-48502">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;assets and property, and the imposition of restrictions on foreign investments 
and on repatriation of capital invested.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota limitations and less market liquidity, which could pose 
risks to a fund investing in such securities. In addition, investments in special structures that utilize 
contractual arrangements to provide exposure to certain Chinese companies, known as variable interest 
entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or prohibits foreign 
investments may present additional risks. The Chinese government&#x2019;s acceptance of the VIE structure 
is evolving. It is uncertain whether Chinese officials and regulators will withdraw their acceptance 
of the structure generally, or with respect to certain industries, or whether Chinese courts or arbitration 
bodies would decline to enforce the contractual rights of foreign investors, each of which would likely 
have significant, detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_SmallandMid-CapCompanyRisk2_S000000959Summary50Member"
      id="ixv-48513">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_ValueInvestmentRisk2_S000000959Summary50Member"
      id="ixv-48518">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_ProfitabilityInvestmentRisk2_S000000959Summary50Member"
      id="ixv-48523">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_DerivativesRisk2_S000000959Summary50Member"
      id="ixv-48527">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_SecuritiesLendingRisk2_S000000959Summary50Member"
      id="ixv-48531">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_OperationalRisk2_S000000959Summary50Member"
      id="ixv-48535">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_CyberSecurityRisk2_S000000959Summary50Member"
      id="ixv-48540">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Cyber security breaches, amongst other things, could allow an unauthorized party 
to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its 
service providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274702"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-48555">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274703">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274704"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274705">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274706">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274707">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274708">Emerging 
Markets Value Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274709">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274710">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274711"
      unitRef="pure">0.2097</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274712">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274713"
      unitRef="pure">-0.3189</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274714">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274715">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274716">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274717"
      unitRef="pure">0.2949</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274718"
      unitRef="pure">0.0995</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274719"
      unitRef="pure">0.0984</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274720">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274721"
      unitRef="pure">0.2814</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274722"
      unitRef="pure">0.0879</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274723"
      unitRef="pure">0.0893</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      id="ixv-274724">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274725"
      unitRef="pure">0.1809</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274726"
      unitRef="pure">0.0759</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002710Member_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274727"
      unitRef="pure">0.0784</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsValueIndexnetdividends3155_S000000959Member_S000000959Summary50Member"
      id="ixv-274728">MSCI Emerging Markets Value Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000959Member_S000000959Summary50Member"
      id="ixv-274729">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsValueIndexnetdividends3156_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274730"
      unitRef="pure">0.3274</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsValueIndexnetdividends3156_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274731"
      unitRef="pure">0.0676</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsValueIndexnetdividends3156_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274732"
      unitRef="pure">0.0796</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3157_S000000959Member_S000000959Summary50Member"
      id="ixv-274733">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3158_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274734"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3158_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274735"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsIndexnetdividends3158_S000000959Member_S000000959Summary50Member"
      decimals="INF"
      id="ixv-274736"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274737"> Emerging Markets Targeted 
Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274738"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-48892">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Emerging Markets Targeted 
Value Portfolio (the &#x201c;Portfolio&#x201d;) is long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274739"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-48899">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274740">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274741">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274742"
      unitRef="pure">0.0052</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274743"
      unitRef="pure">0.0013</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274744"
      unitRef="pure">0.0065</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="_4060_"
      unitRef="pure">-0.0007</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274746"
      unitRef="pure">0.0058</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274747">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-48982">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274748"
      unitRef="usd">59</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274749"
      unitRef="usd">59</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274750"
      unitRef="usd">201</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274751"
      unitRef="usd">201</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274752"
      unitRef="usd">355</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274753"
      unitRef="usd">355</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274754"
      unitRef="usd">355</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274755"
      unitRef="usd">804</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274756"
      unitRef="usd">804</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274757"
      unitRef="usd">804</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274758">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-49009">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;21%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274759"
      unitRef="pure">0.21</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274760"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-49022">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the Emerging Markets Targeted Value Portfolio&#x2019;s investment objective, Dimensional Fund 
Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Targeted Value Portfolio is designed to provide exposure to a broad and diverse portfolio 
of securities, with a focus on small and mid-cap lower relative price companies with higher profitability 
associated with emerging markets, which may include frontier markets (emerging market countries in an 
earlier stage of development), authorized for investment by the Advisor&#x2019;s Investment Committee 
(&#x201c;Approved Markets&#x201d;). The Advisor determines size based primarily on market capitalization. 
A company&#x2019;s market capitalization is the number of its shares outstanding times its price per share. 
An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it 
has a low price in relation to its book value. In assessing relative price, the Advisor may consider 
additional factors such as price to cash flow or price to earnings ratios. The Portfolio may emphasize 
certain stocks, including smaller capitalization companies, lower relative price stocks, and/or higher 
profitability stocks as compared to their representation in the small- and mid-cap value segments of 
the Approved Markets in which the Portfolio is authorized to invest. An equity issuer is considered to 
have high profitability because it has high earnings or profits from operations in relation to its book 
value or assets. The criteria the Advisor uses for assessing relative price and profitability are subject 
to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
Emerging Markets Targeted Value Portfolio will invest at least 80% of its net assets in emerging markets 
equity investments that are defined in the Prospectus as Approved Market securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the Emerging Markets Targeted Value Portfolio&#x2019;s exposure to 
an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Targeted 
Value Portfolio may gain exposure to companies associated with Approved Markets by purchasing equity 
securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio may also invest in China A-shares (equity securities of companies listed 
in China) and variable interest entities (special structures that utilize contractual arrangements to 
provide exposure to certain Chinese companies). The Portfolio may purchase or sell futures contracts 
and options on futures contracts for Approved Market or other equity market securities and indices, including 
those of the United&#160;States, to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may 
be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities 
or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Targeted 
Value Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_PrincipalRisks2_S000063188Summary51Member"
      id="ixv-49029">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x205x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_RiskLoseMoneyMember_S000063188Summary51Member"
      id="ixv-274761">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_RiskNotInsuredMember_S000063188Summary51Member"
      id="ixv-274762">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_EquityMarketRisk2_S000063188Summary51Member"
      id="ixv-49035">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_ForeignSecuritiesandCurrenciesRisk2_S000063188Summary51Member"
      id="ixv-49045">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_GeographicFocusRisk2_S000063188Summary51Member"
      id="ixv-49052">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_SmallandMid-CapCompanyRisk2_S000063188Summary51Member"
      id="ixv-49057">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_EmergingMarketsRisk2_S000063188Summary51Member"
      id="ixv-49062">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_ChinaInvestmentsRisk2_S000063188Summary51Member"
      id="ixv-49069">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;result in further tariffs, trade restrictions, sanctions, or other actions that 
adversely impact the value of such investments. A reduction in spending on Chinese products and services, 
supply chain diversification or the institution of additional tariffs or other trade barriers, including 
as a result of heightened trade tensions between China and the United States may also have an adverse 
impact on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its 
political and economic relationship with China. Certain securities issued by companies located or operating 
in China, such as China A-shares, are also subject to trading restrictions, quota limitations and less 
market liquidity, which could pose risks to a fund investing in such securities. In addition, investments 
in special structures that utilize contractual arrangements to provide exposure to certain Chinese companies, 
known as variable interest entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts 
and/or prohibits foreign investments may present additional risks. The Chinese government&#x2019;s acceptance 
of the VIE structure is evolving. It is uncertain whether Chinese officials and regulators will withdraw 
their acceptance of the structure generally, or with respect to certain industries, or whether Chinese 
courts or arbitration bodies would decline to enforce the contractual rights of foreign investors, each 
of which would likely have significant, detrimental, and possibly permanent losses on the value of such 
investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_ValueInvestmentRisk2_S000063188Summary51Member"
      id="ixv-49080">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies. 
Value stocks can react differently to political, economic, and industry developments than the market 
as a whole and other types of stocks. Value stocks also may underperform the market for long periods 
of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_ProfitabilityInvestmentRisk2_S000063188Summary51Member"
      id="ixv-49085">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
High relative profitability stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_DerivativesRisk2_S000063188Summary51Member"
      id="ixv-49089">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_SecuritiesLendingRisk2_S000063188Summary51Member"
      id="ixv-49093">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_OperationalRisk2_S000063188Summary51Member"
      id="ixv-49097">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_CyberSecurityRisk2_S000063188Summary51Member"
      id="ixv-49102">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274763"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-49112">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;after taxes) is not an indication of future results. Updated performance information 
for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274764">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274765"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274767">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274768">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274769">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274770">Emerging 
Markets Targeted Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274771">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274772">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274773"
      unitRef="pure">0.2388</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274774">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274775"
      unitRef="pure">-0.3364</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274776">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274777">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274778">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274779"
      unitRef="pure">0.2428</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274780"
      unitRef="pure">0.0872</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181114_20251231_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="_4123_"
      unitRef="pure">0.0891</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274782">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274783"
      unitRef="pure">0.2239</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274784"
      unitRef="pure">0.0699</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181114_20251231_AfterTaxesOnDistributionsMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="_4127_"
      unitRef="pure">0.0744</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      id="ixv-274786">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274787"
      unitRef="pure">0.1490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274788"
      unitRef="pure">0.0637</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181114_20251231_AfterTaxesOnDistributionsAndSalesMember_C000204811Member_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="_4131_"
      unitRef="pure">0.0667</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3159_S000063188Member_S000063188Summary51Member"
      id="ixv-274790">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000063188Member_S000063188Summary51Member"
      id="ixv-274791">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3160_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274792"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3160_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="ixv-274793"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181114_20251231_MSCIEmergingMarketsIndexnetdividends3160_S000063188Member_S000063188Summary51Member"
      decimals="INF"
      id="_4136_"
      unitRef="pure">0.0792</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274795"> Emerging Markets Small Cap 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274796"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49448">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Emerging Markets Small Cap 
Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation. The Emerging Markets 
Small Cap Portfolio is a Feeder Portfolio and pursues its objective by investing substantially all of 
its assets in its corresponding Master Fund, The Emerging Markets Small Cap Series (the &#x201c;Emerging 
Markets Small Cap Series&#x201d; or the &#x201c;Series&#x201d;) of The DFA Investment Trust Company (the 
&#x201c;Trust&#x201d;), which has the same investment objective and policies as the Portfolio.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274797"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49455">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274798">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274799">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="_4144_"
      unitRef="pure">0.0072</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="_4145_"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="_4146_"
      unitRef="pure">0.0080</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="_4147_"
      unitRef="pure">-0.0020</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="_4148_"
      unitRef="pure">0.0060</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274805">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49537">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its 
portion of the expenses of the Series. The Example assumes that you invest $10,000 in the Portfolio for 
the time periods indicated. The Example also assumes that your investment has a 5% return each year and 
that the Portfolio&#x2019;s operating expenses remain the same. Although your actual costs may be higher 
or lower, based on these assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274806"
      unitRef="usd">61</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274807"
      unitRef="usd">61</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274808"
      unitRef="usd">192</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274809"
      unitRef="usd">192</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274810"
      unitRef="usd">335</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274811"
      unitRef="usd">335</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274812"
      unitRef="usd">335</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274813"
      unitRef="usd">750</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274814"
      unitRef="usd">750</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274815"
      unitRef="usd">750</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274816">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49564">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual 
Fund Operating Expenses or in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Series' portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274817"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274818"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49579">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the Emerging Markets Small 
Cap Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
implements an integrated investment approach that combines research, portfolio design, portfolio management, 
and trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term 
drivers of expected returns identified by the Advisor&#x2019;s research, while balancing risk through 
broad diversification across companies, sectors, and countries. The Advisor&#x2019;s portfolio management 
and trading processes further balance those long-term drivers of expected returns with shorter-term drivers 
of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Small Cap Portfolio 
invests substantially all of its assets in the Emerging Markets Small Cap Series. The Series is designed 
to purchase a broad market coverage of smaller companies associated with emerging markets, which may 
include frontier markets (emerging market countries in an earlier stage of development), authorized for 
investment by the Advisor&#x2019;s Investment Committee (&#x201c;Approved Markets&#x201d;). The Advisor&#x2019;s 
definition of small varies across countries and is based primarily on market capitalization. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. In each country 
authorized for investment, the Advisor first ranks eligible companies listed on selected exchanges based 
on the companies&#x2019; market capitalizations. The Advisor then defines the maximum market capitalization 
for a small company in that country. For example, based on market capitalization data as of December 
31, 2025, Mexico had a size threshold of below $5,937 million, and Greece had a size threshold of below 
$3,907 million. These thresholds will change due to market conditions. The Series may emphasize certain 
stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability 
stocks as compared to their representation in the small-cap segment of the Approved Markets in which 
the Series is authorized to invest. An equity issuer is considered to have a low relative price (i.e., 
a value stock) primarily because it has a low price in relation to its book value. In assessing relative 
price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. 
An equity issuer is considered to have high profitability because it has high earnings or profits from 
operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative 
price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Emerging Markets Small Cap Series will invest 
at least 80% of its net assets in emerging market investments that are designated in the Prospectus as 
Approved Market securities of small companies. The Advisor generally defines a U.S. company as one that 
is listed and principally traded on a securities exchange in the United States that is deemed appropriate 
by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Emerging Markets 
Small Cap Series&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term 
considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. 
In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent 
changes in assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s 
investment characteristics are subject to change from time to time. In addition, the Advisor seeks to 
reduce trading costs using a flexible trading approach that looks for opportunities to participate in 
the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Small Cap Series may gain exposure to companies associated with Approved Markets by 
purchasing equity securities in the form of depositary receipts, which may be listed or traded outside 
the issuer&#x2019;s domicile country. The Series may also invest in China A-shares (equity securities 
of companies listed in China) and variable interest entities (special structures that utilize contractual 
arrangements to provide exposure to certain Chinese companies). The Series and the Emerging Markets Small 
Cap Portfolio each may purchase or sell futures contracts and options on futures contracts for Approved 
Market or other equity market securities and indices, including those of the United States, to increase 
or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Series 
or Portfolio. Because many of the Series&#x2019; and the Portfolio&#x2019;s investments may be denominated 
in foreign currencies, the Series and the Portfolio may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities 
or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Small 
Cap Series may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_PrincipalRisks2_S000000981Summary52Member"
      id="ixv-49589">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x215x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_RiskLoseMoneyMember_S000000981Summary52Member"
      id="ixv-274819">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_RiskNotInsuredMember_S000000981Summary52Member"
      id="ixv-274820">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_EquityMarketRisk2_S000000981Summary52Member"
      id="ixv-49595">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_ForeignSecuritiesandCurrenciesRisk2_S000000981Summary52Member"
      id="ixv-49600">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Series does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_GeographicFocusRisk2_S000000981Summary52Member"
      id="ixv-49607">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_SmallCompanyRisk2_S000000981Summary52Member"
      id="ixv-49612">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_ProfitabilityInvestmentRisk2_S000000981Summary52Member"
      id="ixv-49616">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_ValueInvestmentRisk2_S000000981Summary52Member"
      id="ixv-49620">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_EmergingMarketsRisk2_S000000981Summary52Member"
      id="ixv-49625">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;developed markets and foreigners are often limited in their ability to invest 
in, and withdraw assets from, these markets. Additional restrictions may be imposed under other conditions. 
Frontier market countries generally have smaller economies or less developed capital markets and, as 
a result, the risks of investing in emerging market countries are magnified in frontier market countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_ChinaInvestmentsRisk2_S000000981Summary52Member"
      id="ixv-49637">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota limitations and less market liquidity, which could pose 
risks to a fund investing in such securities. In addition, investments in special structures that utilize 
contractual arrangements to provide exposure to certain Chinese companies, known as variable interest 
entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or prohibits foreign 
investments may present additional risks. The Chinese government&#x2019;s acceptance of the VIE structure 
is evolving. It is uncertain whether Chinese officials and regulators will withdraw their acceptance 
of the structure generally, or with respect to certain industries, or whether Chinese courts or arbitration 
bodies would decline to enforce the contractual rights of foreign investors, each of which would likely 
have significant, detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_DerivativesRisk2_S000000981Summary52Member"
      id="ixv-49643">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_SecuritiesLendingRisk2_S000000981Summary52Member"
      id="ixv-49647">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_OperationalRisk2_S000000981Summary52Member"
      id="ixv-49651">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_CyberSecurityRisk2_S000000981Summary52Member"
      id="ixv-49656">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;information, customer data, or fund assets, or cause the fund and/or its service 
providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274821"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-49671">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274822">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274823"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274824">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274825">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274826">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274827">Emerging 
Markets Small Cap Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274828">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274829">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274830"
      unitRef="pure">0.2652</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274831">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274832"
      unitRef="pure">-0.3156</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274833">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274834">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274835">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274836"
      unitRef="pure">0.1900</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274837"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274838"
      unitRef="pure">0.0859</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274839">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274840"
      unitRef="pure">0.1779</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274841"
      unitRef="pure">0.0595</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274842"
      unitRef="pure">0.0734</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      id="ixv-274843">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274844"
      unitRef="pure">0.1184</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274845"
      unitRef="pure">0.0530</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002732Member_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274846"
      unitRef="pure">0.0656</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3161_S000000981Member_S000000981Summary52Member"
      id="ixv-274847">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000981Member_S000000981Summary52Member"
      id="ixv-274848">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3162_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274849"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3162_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274850"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsIndexnetdividends3162_S000000981Member_S000000981Summary52Member"
      decimals="INF"
      id="ixv-274851"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274852"> Emerging Markets Core Equity 
2 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274853"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-49974">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Emerging Markets Core Equity 
2 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274854"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-49981">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274855">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274856">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274857"
      unitRef="pure">0.0033</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274858"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274859"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274860">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-50040">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274861"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274862"
      unitRef="usd">40</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274863"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274864"
      unitRef="usd">125</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274865"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274866"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274867"
      unitRef="usd">219</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274868"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274869"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274870"
      unitRef="usd">493</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274871">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-50067">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274872"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274873"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-50077">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the Emerging Markets Core Equity 
2 Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Core Equity 2 Portfolio is designed to 
purchase a broad and diverse group of equity securities associated with emerging markets, which may include 
frontier markets (emerging market countries in an earlier stage of development), authorized for investment 
by the Advisor&#x2019;s Investment Committee (&#x201c;Approved &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Markets&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully 
increased exposure to smaller capitalization, lower relative price, and higher profitability companies. 
The Portfolio&#x2019;s meaningfully increased exposure to smaller capitalization, lower relative price, 
and higher profitability companies may be achieved by decreasing the allocation of the Portfolio&#x2019;s 
assets to larger capitalization, higher relative price, or lower profitability companies. An equity issuer 
is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price 
in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value 
stock) primarily because it has a low price in relation to its book value. In assessing relative price, 
the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An 
equity issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the Emerging Markets Core Equity 2 Portfolio will invest at least 80% of 
its net assets in emerging markets equity investments that are defined in the Prospectus as Approved 
Market securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Emerging Markets 
Core Equity 2 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term 
considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. 
In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent 
changes in assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s 
investment characteristics are subject to change from time to time. In addition, the Advisor seeks to 
reduce trading costs using a flexible trading approach that looks for opportunities to participate in 
the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Core Equity 2 Portfolio may gain exposure to companies in Approved Markets by purchasing 
equity securities in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s 
domicile country. The Portfolio may also invest in China A-shares (equity securities of companies listed 
in China) and variable interest entities (special structures that utilize contractual arrangements to 
provide exposure to certain Chinese companies). The Portfolio may purchase or sell futures contracts 
and options on futures contracts for Approved Market or other equity market securities and indices, including 
those of the United States, to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may 
be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities 
or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Core 
Equity 2 Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_PrincipalRisks2_S000000978Summary53Member"
      id="ixv-50089">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x225x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_RiskLoseMoneyMember_S000000978Summary53Member"
      id="ixv-274874">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_RiskNotInsuredMember_S000000978Summary53Member"
      id="ixv-274875">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_EquityMarketRisk2_S000000978Summary53Member"
      id="ixv-50095">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_ForeignSecuritiesandCurrenciesRisk2_S000000978Summary53Member"
      id="ixv-50100">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;interest and obtaining information regarding corporate actions on a timely basis, 
pursuing legal remedies, and obtaining judgments with respect to foreign investments in foreign courts 
than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are 
generally subject to the same risks as the foreign securities that they evidence or into which they may 
be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored 
or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_GeographicFocusRisk2_S000000978Summary53Member"
      id="ixv-50112">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_SmallandMid-CapCompanyRisk2_S000000978Summary53Member"
      id="ixv-50117">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_EmergingMarketsRisk2_S000000978Summary53Member"
      id="ixv-50122">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_ChinaInvestmentsRisk2_S000000978Summary53Member"
      id="ixv-50129">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota limitations and less market liquidity, which could pose 
risks to a fund investing in such securities. In addition, investments in special structures that utilize 
contractual arrangements to provide exposure to certain Chinese companies, known as variable interest 
entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or prohibits foreign 
investments may present additional risks. The Chinese government&#x2019;s acceptance of the VIE structure 
is evolving. It is uncertain whether Chinese officials and regulators will withdraw their acceptance 
of the structure generally, or with respect to certain industries, or whether Chinese courts or arbitration 
bodies would &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;decline to enforce the contractual rights of foreign investors, each of which 
would likely have significant, detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_ProfitabilityInvestmentRisk2_S000000978Summary53Member"
      id="ixv-50140">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_ValueInvestmentRisk2_S000000978Summary53Member"
      id="ixv-50144">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_DerivativesRisk2_S000000978Summary53Member"
      id="ixv-50149">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_SecuritiesLendingRisk2_S000000978Summary53Member"
      id="ixv-50153">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_OperationalRisk2_S000000978Summary53Member"
      id="ixv-50157">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_CyberSecurityRisk2_S000000978Summary53Member"
      id="ixv-50162">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274876"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-50172">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274877">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274878"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274879">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274880">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274881">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274882">Emerging 
Markets Core Equity 2 Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274883">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274884">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274885"
      unitRef="pure">0.2125</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274886">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274887"
      unitRef="pure">-0.2831</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274888">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274889">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274890">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274891"
      unitRef="pure">0.2877</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274892"
      unitRef="pure">0.0714</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274893"
      unitRef="pure">0.0926</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274894">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274895"
      unitRef="pure">0.2774</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274896"
      unitRef="pure">0.0617</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274897"
      unitRef="pure">0.0845</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      id="ixv-274898">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274899"
      unitRef="pure">0.1752</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274900"
      unitRef="pure">0.0529</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002729Member_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274901"
      unitRef="pure">0.0731</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3163_S000000978Member_S000000978Summary53Member"
      id="ixv-274902">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000978Member_S000000978Summary53Member"
      id="ixv-274903">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3164_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274904"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3164_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274905"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsIndexnetdividends3164_S000000978Member_S000000978Summary53Member"
      decimals="INF"
      id="ixv-274906"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274907"> Emerging Markets ex China 
Core Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274908"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50483">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Emerging Markets ex China 
Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274909"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50490">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274910">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274911">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274912"
      unitRef="pure">0.0033</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274913"
      unitRef="pure">0.0012</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274914"
      unitRef="pure">0.0045</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="_4325_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274916"
      unitRef="pure">0.0043</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274917">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50573">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274918"
      unitRef="usd">44</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274919"
      unitRef="usd">44</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274920"
      unitRef="usd">142</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274921"
      unitRef="usd">142</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274922"
      unitRef="usd">250</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274923"
      unitRef="usd">250</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274924"
      unitRef="usd">250</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274925"
      unitRef="usd">565</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274926"
      unitRef="usd">565</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274927"
      unitRef="usd">565</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274928">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50600">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;27%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274929"
      unitRef="pure">0.27</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274930"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50613">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the Emerging Markets ex China Core Equity Portfolio&#x2019;s investment objective, Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines 
research, portfolio design, portfolio management, and trading functions. As further described below, 
the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s 
research, while balancing risk through broad diversification across companies, sectors, and countries. 
The Advisor&#x2019;s portfolio management and trading processes further balance those long-term drivers 
of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets ex China Core Equity Portfolio is designed to purchase a broad and diverse group of 
equity securities associated with emerging markets authorized for investment by the Advisor&#x2019;s Investment 
Committee (&#x201c;Approved Markets&#x201d;), which may include frontier markets (emerging market countries 
in an earlier stage of development) but which does not include China. The Portfolio will invest in companies 
of all sizes, with meaningfully increased exposure to smaller capitalization, lower relative price, and 
higher profitability companies. The Portfolio&#x2019;s meaningfully increased exposure to smaller capitalization, 
lower relative price, and higher profitability companies may be achieved by decreasing the allocation 
of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower profitability 
companies. An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily 
because it has a high price in relation to its book value. An equity issuer is considered to have a low 
relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Emerging Markets ex China Core Equity Portfolio 
will invest at least 80% of its net assets in emerging markets equity investments that are defined in 
the Prospectus as Approved Market securities. In determining which countries are eligible Approved Markets 
for the Portfolio, the Advisor may consider various factors, including, without limitation, the classification 
of countries recognized by global index providers, market liquidity, relative availability of information 
to investors, government regulation, including fiscal and foreign exchange repatriation rules, the availability 
of other access to these markets, clearing and settlement processes, taxes, fees, duties, and other costs 
of transacting in the market, and observance of property rights.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the Emerging Markets ex China Core Equity Portfolio&#x2019;s exposure 
to an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets ex China 
Core Equity Portfolio may gain exposure to companies in Approved Markets by purchasing equity securities 
in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile 
country. The Portfolio may purchase or sell futures contracts and options on futures contracts for Approved 
Market or other equity market securities and indices, including those of the United States, to increase 
or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio. 
Because many of the Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio 
may enter into foreign currency exchange transactions, including foreign currency forward contracts, 
in connection with the settlement of foreign securities or to transfer cash balances from one currency 
to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio may lend its portfolio securities to generate 
additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_PrincipalRisks2_S000073658Summary54Member"
      id="ixv-50620">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x235x6"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_RiskLoseMoneyMember_S000073658Summary54Member"
      id="ixv-274931">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_RiskNotInsuredMember_S000073658Summary54Member"
      id="ixv-274932">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_EquityMarketRisk2_S000073658Summary54Member"
      id="ixv-50631">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_ForeignSecuritiesandCurrenciesRisk2_S000073658Summary54Member"
      id="ixv-50636">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_TaiwanInvestmentsRisk2_S000073658Summary54Member"
      id="ixv-50643">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Taiwan Investments 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; There are special risks associated with investments in Taiwan. Taiwan and China 
are highly interconnected and interdependent, with relationships and tensions built on trade, finance, 
culture, and politics. Taiwan&#x2019;s political stability and ability to sustain its economic growth 
could be significantly affected by its political and economic relationship with China&#160;and Taiwan&#160;remains 
vulnerable to both Chinese territorial ambitions and economic downturns. The economic success of China 
will continue to have an outsized influence on the growth and prosperity of Taiwan.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_GeographicFocusRisk2_S000073658Summary54Member"
      id="ixv-50647">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a 
fund focuses its investments in securities of issuers located in a particular country or region, the 
fund may be subjected, to a greater extent than if its investments were less focused, to the risks of 
volatile economic cycles and/or conditions and developments that may be particular to that country or 
region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, 
economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_SmallandMid-CapCompanyRisk2_S000073658Summary54Member"
      id="ixv-50652">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_EmergingMarketsRisk2_S000073658Summary54Member"
      id="ixv-50657">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_ProfitabilityInvestmentRisk2_S000073658Summary54Member"
      id="ixv-50667">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_ValueInvestmentRisk2_S000073658Summary54Member"
      id="ixv-50671">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_DerivativesRisk2_S000073658Summary54Member"
      id="ixv-50676">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_SecuritiesLendingRisk2_S000073658Summary54Member"
      id="ixv-50680">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_OperationalRisk2_S000073658Summary54Member"
      id="ixv-50684">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_CyberSecurityRisk2_S000073658Summary54Member"
      id="ixv-50689">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274934"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-50699">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274935">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274936"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274937">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274938">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274939">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274940">Emerging 
Markets ex China Core Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274941">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274942">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274943"
      unitRef="pure">0.1550</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274944">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274945"
      unitRef="pure">-0.1708</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274946">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274947">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274948">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274949"
      unitRef="pure">0.2785</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20211115_20251231_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="_4384_"
      unitRef="pure">0.0831</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274951">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274952"
      unitRef="pure">0.2721</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20211115_20251231_AfterTaxesOnDistributionsMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="_4387_"
      unitRef="pure">0.0756</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-274954">Return After Taxes on Distributions and Sale of Portfolio 
Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274955"
      unitRef="pure">0.1712</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20211115_20251231_AfterTaxesOnDistributionsAndSalesMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="_4390_"
      unitRef="pure">0.0633</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsexChinaIndexnetdividends3165_S000073658Member_S000073658Summary54Member"
      id="ixv-274957">MSCI Emerging Markets ex China Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000073658Member_S000073658Summary54Member"
      id="ixv-274958">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsexChinaIndexnetdividends3166_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="ixv-274959"
      unitRef="pure">0.3461</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20211115_20251231_MSCIEmergingMarketsexChinaIndexnetdividends3166_S000073658Member_S000073658Summary54Member"
      decimals="INF"
      id="_4394_"
      unitRef="pure">0.0731</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274961"> DFA One-Year Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274962"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65495">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA One-Year Fixed Income Portfolio (the &#x201c;One-Year Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to achieve a stable real return in excess of the rate of inflation 
with a minimum of risk.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274963"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65502">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274964">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274965">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274966"
      unitRef="pure">0.0010</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274967"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274968"
      unitRef="pure">0.0012</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274969">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65561">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274970"
      unitRef="usd">12</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274971"
      unitRef="usd">12</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274972"
      unitRef="usd">39</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274973"
      unitRef="usd">39</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274974"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274975"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274976"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274977"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274978"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274979"
      unitRef="usd">154</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274980">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65588">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;78%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274981"
      unitRef="pure">0.78</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274982"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65598">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The One-Year Portfolio seeks to achieve 
its investment objective by generally investing in a universe of high quality fixed income securities 
that typically mature in one year or less from the date of settlement. The Portfolio may, however, take 
a large position in securities maturing within two years from the date of settlement when higher yields 
are available. The Portfolio invests in U.S. government obligations, U.S. government agency obligations, 
dollar-denominated obligations of foreign issuers issued in the U.S., securities of domestic or foreign 
issuers denominated in U.S. dollars but not trading in the U.S., foreign government and agency obligations, 
bank obligations, including U.S. subsidiaries and branches of foreign banks, corporate obligations, commercial 
paper, repurchase agreements, money market funds and obligations of supranational organizations. In making 
purchase decisions, if the expected term premium is greater for longer-term securities in the eligible 
maturity range, Dimensional Fund Advisors LP (the &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;&#x201c;Advisor&#x201d;) will focus investment in the longer-term area, otherwise, 
the Portfolio will focus investment in the shorter-term area of the eligible maturity range. The fixed 
income securities in which the Portfolio invests are considered investment grade at the time of purchase 
(e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). As a non-fundamental policy, 
under normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed income 
securities and maintain a weighted average effective maturity that will not exceed one year. The effective 
maturity adjusts the stated final maturity of a fixed income security for an actual or expected event 
such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest rate reset, 
or other similar event. The Portfolio principally invests in certificates of deposit, commercial paper, 
bankers&#x2019; acceptances, notes and bonds. In addition, the Portfolio is authorized to invest more 
than 25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies 
and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The One-Year Portfolio may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The One-Year Portfolio may lend 
its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_PrincipalRisks2_S000000968Summary55Member"
      id="ixv-65607">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_RiskLoseMoneyMember_S000000968Summary55Member"
      id="ixv-274983">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_RiskNotInsuredMember_S000000968Summary55Member"
      id="ixv-274984">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_MarketRisk2_S000000968Summary55Member"
      id="ixv-65613">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_ForeignSecuritiesandCurrenciesRisk2_S000000968Summary55Member"
      id="ixv-65618">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_ForeignGovernmentDebtRisk2_S000000968Summary55Member"
      id="ixv-65624">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_InterestRateRisk2_S000000968Summary55Member"
      id="ixv-65629">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_CreditRisk2_S000000968Summary55Member"
      id="ixv-65637">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_IncomeRisk2_S000000968Summary55Member"
      id="ixv-65642">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_CallRisk2_S000000968Summary55Member"
      id="ixv-65647">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_LiquidityRisk2_S000000968Summary55Member"
      id="ixv-65652">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_DerivativesRisk2_S000000968Summary55Member"
      id="ixv-65657">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as futures contracts, and options thereon, whose value is derived from that of 
other assets, rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting 
one investment position with another) or non-hedging purposes. Hedging with derivatives may increase 
expenses, and there is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate 
losses, it can also reduce or eliminate gains or cause losses if the market moves in a manner different 
from that anticipated by a fund or if the cost of the derivative outweighs the benefit of the hedge. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_SecuritiesLendingRisk2_S000000968Summary55Member"
      id="ixv-65661">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_OperationalRisk2_S000000968Summary55Member"
      id="ixv-65665">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_CyberSecurityRisk2_S000000968Summary55Member"
      id="ixv-65670">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;information, customer data, or fund assets, or cause the fund and/or its service 
providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274985"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-65685">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274986">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274987"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274988">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274989">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274990">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274991">DFA 
One-Year Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-274992">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-274993">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274994"
      unitRef="pure">0.0144</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-274995">2024-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-274996"
      unitRef="pure">-0.0123</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-274997">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-274998">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-274999">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275000"
      unitRef="pure">0.0439</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275001"
      unitRef="pure">0.0264</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275002"
      unitRef="pure">0.0198</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-275003">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275004"
      unitRef="pure">0.0262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275005"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275006"
      unitRef="pure">0.0115</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      id="ixv-275007">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275008"
      unitRef="pure">0.0258</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275009"
      unitRef="pure">0.0153</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002719Member_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275010"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofAUS3-MonthTreasuryBillIndex3167_S000000968Member_S000000968Summary55Member"
      id="_4478_">ICE BofA US 3-Month Treasury 
Bill Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000968Member_S000000968Summary55Member"
      id="ixv-275012">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3168_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275013"
      unitRef="pure">0.0418</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3168_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275014"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3168_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275015"
      unitRef="pure">0.0218</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3169_S000000968Member_S000000968Summary55Member"
      id="ixv-275016">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3170_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275017"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3170_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275018"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3170_S000000968Member_S000000968Summary55Member"
      decimals="INF"
      id="ixv-275019"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275020"> DFA Two-Year Global Fixed 
Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275021"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67073">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Two-Year Global Fixed Income Portfolio (the &#x201c;Two-Year Global Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to maximize total returns consistent with preservation of capital. 
Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275022"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67080">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275023">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275024">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275025"
      unitRef="pure">0.0014</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275026"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275027"
      unitRef="pure">0.0016</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275028">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67139">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275029"
      unitRef="usd">16</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275030"
      unitRef="usd">16</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275031"
      unitRef="usd">52</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275032"
      unitRef="usd">52</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275033"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275034"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275035"
      unitRef="usd">90</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275036"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275037"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275038"
      unitRef="usd">205</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275039">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67166">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;78%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275040"
      unitRef="pure">0.78</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275041"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67176">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Two-Year Global Portfolio seeks to 
maximize total returns from a universe of U.S. and foreign debt securities maturing in three years or 
less from the date of settlement. The Portfolio invests in obligations issued or guaranteed by the U.S. 
and foreign governments, their agencies and instrumentalities, corporate debt obligations, bank obligations, 
commercial paper, repurchase agreements, money market funds, securities of domestic or foreign issuers 
denominated in U.S. dollars but not trading in the United States, and obligations of supranational organizations. 
Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that the Portfolio will primarily invest 
in the obligations of issuers that are in developed countries. The Advisor selects the Portfolio's foreign 
country and currency compositions based on an evaluation of various factors, including, but not limited 
to, relative interest rates and exchange rates. The fixed income securities in which the Portfolio invests 
are considered investment grade at &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
The Portfolio intends to invest its assets to gain exposure to at least three different countries, including 
the United States. As of the date of the Prospectus, the Portfolio invests approximately 23% of its net 
assets in U.S. issuers. This percentage will change due to market conditions. An issuer may be considered 
to be of a country if it is organized under the laws of, maintains its principal place of business in, 
has at least 50% of its assets or derives at least 50% of its operating income in, or is a government, 
government agency, instrumentality or central bank of, that country. As a non-fundamental policy, under 
normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed income securities 
that mature within two years from the date of settlement.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;It is the policy of the 
Two-Year Global Portfolio that the weighted average effective maturity of investments will not exceed 
two years. The effective maturity adjusts the stated final maturity of a fixed income security for an 
actual or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon 
or interest rate reset, or other similar event. In making purchase decisions, if the expected term premium 
is greater for longer-term securities in the eligible maturity range, the Advisor will focus investment 
in the longer-term area, otherwise, the Portfolio will focus investment in the shorter-term area of the 
eligible maturity range. In addition, the Portfolio is authorized to invest more than 25% of its total 
assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
many of the Two-Year Global Portfolio&#x2019;s investments may be denominated in foreign currencies, the 
Portfolio may also enter into foreign currency forward contracts to attempt to protect against uncertainty 
in the level of future foreign currency rates, to hedge against fluctuations in currency exchange rates 
or to transfer balances from one currency to another. The Portfolio may purchase or sell futures contracts 
and options on futures contracts, to hedge its currency exposure or to hedge its interest rate exposure 
or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease market 
exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Two-Year Global Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_PrincipalRisks2_S000000955Summary58Member"
      id="ixv-67186">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_RiskLoseMoneyMember_S000000955Summary58Member"
      id="ixv-275042">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_RiskNotInsuredMember_S000000955Summary58Member"
      id="ixv-275043">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_MarketRisk2_S000000955Summary58Member"
      id="ixv-67192">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_ForeignSecuritiesandCurrenciesRisk2_S000000955Summary58Member"
      id="ixv-67197">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_ForeignGovernmentDebtRisk2_S000000955Summary58Member"
      id="ixv-67203">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;required by the International Monetary Fund or other multilateral agencies, and/or 
other national economic factors; (b) governments may default on their debt securities, which may require 
holders of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy 
process by which defaulted government debt may be collected in whole or in part.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_InterestRateRisk2_S000000955Summary58Member"
      id="ixv-67213">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_CreditRisk2_S000000955Summary58Member"
      id="ixv-67218">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_IncomeRisk2_S000000955Summary58Member"
      id="ixv-67223">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_CallRisk2_S000000955Summary58Member"
      id="ixv-67228">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_DerivativesRisk2_S000000955Summary58Member"
      id="ixv-67233">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_LiquidityRisk2_S000000955Summary58Member"
      id="ixv-67237">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_SecuritiesLendingRisk2_S000000955Summary58Member"
      id="ixv-67245">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_OperationalRisk2_S000000955Summary58Member"
      id="ixv-67249">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_CyberSecurityRisk2_S000000955Summary58Member"
      id="ixv-67254">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275044"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-67264">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275045">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275046"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275047">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275048">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275049">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275050">DFA 
Two-Year Global Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275051">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275052">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275053"
      unitRef="pure">0.0140</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275054">2024-09-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275055"
      unitRef="pure">-0.0202</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275056">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275057">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275058">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275059"
      unitRef="pure">0.0442</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275060"
      unitRef="pure">0.0230</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275061"
      unitRef="pure">0.0190</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275062">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275063"
      unitRef="pure">0.0269</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275064"
      unitRef="pure">0.0119</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275065"
      unitRef="pure">0.0104</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      id="ixv-275066">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275067"
      unitRef="pure">0.0261</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275068"
      unitRef="pure">0.0128</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002706Member_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275069"
      unitRef="pure">0.0108</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSEWorldGovernmentBondIndex1-2YearshedgedtoUSD3182_S000000955Member_S000000955Summary58Member"
      id="ixv-275070">FTSE World Government Bond Index 
1-2 Years (hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000955Member_S000000955Summary58Member"
      id="ixv-275071">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSEWorldGovernmentBondIndex1-2YearshedgedtoUSD3183_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275072"
      unitRef="pure">0.0455</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSEWorldGovernmentBondIndex1-2YearshedgedtoUSD3183_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275073"
      unitRef="pure">0.0243</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSEWorldGovernmentBondIndex1-2YearshedgedtoUSD3183_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275074"
      unitRef="pure">0.0210</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3184_S000000955Member_S000000955Summary58Member"
      id="ixv-275075">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3185_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275076"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3185_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275077"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3185_S000000955Member_S000000955Summary58Member"
      decimals="INF"
      id="ixv-275078"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275079"> DFA Selectively Hedged Global 
Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275080"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67599">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Selectively Hedged Global Fixed Income Portfolio (the &#x201c;Selectively 
Hedged Global Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to maximize total returns within the 
universe of domestic and foreign debt securities that the Portfolio invests. Total return is comprised 
of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275081"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67606">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275082">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275083">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275084"
      unitRef="pure">0.0014</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275085"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275086"
      unitRef="pure">0.0017</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275087">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67665">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275088"
      unitRef="usd">17</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275089"
      unitRef="usd">17</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275090"
      unitRef="usd">55</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275091"
      unitRef="usd">55</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275092"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275093"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275094"
      unitRef="usd">96</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275095"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275096"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275097"
      unitRef="usd">217</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275098">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67692">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;39%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275099"
      unitRef="pure">0.39</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275100"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67702">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Selectively Hedged Global Portfolio 
seeks to maximize total returns from a universe of U.S. and foreign debt securities maturing in five 
years or less from the date of settlement. The Portfolio may selectively hedge its currency exposures 
depending on market conditions. The debt securities in which the Portfolio may invest include obligations 
issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, corporate 
debt obligations, bank obligations, commercial paper, repurchase agreements, money market funds, securities 
of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, and 
obligations of supranational organizations. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
expects that the Portfolio will primarily &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;invest in the obligations of issuers that are in developed countries. The Advisor 
selects the Portfolio's foreign country and currency compositions based on an evaluation of various factors, 
including, but not limited to, relative interest rates and exchange rates. The fixed income securities 
in which the Portfolio invests are considered investment grade at the time of purchase (e.g., rated AAA 
to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). The Portfolio generally invests 
with an emphasis on debt securities rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s. 
The Portfolio will increase or decrease investment exposure to these lower-rated investment grade securities 
(i.e., those rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s) depending on the expected 
credit premium.  The Portfolio intends to invest its assets to gain exposure to at least three different 
countries, including the United States. As of the date of the Prospectus, the Portfolio invests approximately 
24% of its net assets in U.S. issuers. This percentage will change due to market conditions. An issuer 
may be considered to be of a country if it is organized under the laws of, maintains its principal place 
of business in, has at least 50% of its assets or derives at least 50% of its operating income in, or 
is a government, government agency, instrumentality or central bank of, that country.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Selectively Hedged Global Portfolio will invest 
at least 80% of its net assets in fixed income securities. The Portfolio primarily invests in securities 
that mature within five years from the date of settlement and maintains a weighted average effective 
maturity and a weighted average duration of three years or less. The effective maturity adjusts the stated 
final maturity of a fixed income security for an actual or expected event such as a call, put, tender, 
mandatory early redemption, pre-refunding, coupon or interest rate reset, or other similar event. Duration 
is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The longer 
a security&#x2019;s duration, the more sensitive it will be to changes in interest rates. In making purchase 
decisions, if the expected term premium is greater for longer-term securities in the eligible maturity 
range, the Advisor will focus investment in the longer-term area, otherwise, the Portfolio will focus 
investment in the shorter-term area of the eligible maturity range. In addition, the Portfolio is authorized 
to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations 
of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because many of the Selectively 
Hedged Global Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may 
also enter into foreign currency forward contracts to attempt to protect against uncertainty in the level 
of future foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer 
balances from one currency to another. Alternatively, the Portfolio may leave all or some of the currency 
exposure unhedged. The decision to hedge the Portfolio&#x2019;s currency exposure with respect to a foreign 
market will be based on, among other things, a comparison of the respective foreign and U.S. short-term 
interest rates and the Portfolio&#x2019;s existing exposure to a given foreign currency. The Portfolio 
may also enter into foreign currency forward contracts in order to gain exposure to foreign currencies 
in a more efficient manner. The Portfolio may purchase or sell futures contracts and options on futures 
contracts, to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging purposes, 
such as a substitute for direct investment or to increase or decrease market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Selectively Hedged 
Global Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_PrincipalRisks2_S000020421Summary59Member"
      id="ixv-67712">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_RiskLoseMoneyMember_S000020421Summary59Member"
      id="ixv-275101">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_RiskNotInsuredMember_S000020421Summary59Member"
      id="ixv-275102">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_MarketRisk2_S000020421Summary59Member"
      id="ixv-67718">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_ForeignSecuritiesandCurrenciesRisk2_S000020421Summary59Member"
      id="ixv-67723">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio may hedge the currency exposure of its foreign 
securities or leave some or all of the currency exposure unhedged.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject to uniform accounting, auditing and financial 
reporting standards and there may be less reliable and publicly available financial and other information 
about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising 
shareholder rights, securing dividends and/or interest and obtaining information regarding corporate 
actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments 
in foreign courts than with respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_ForeignGovernmentDebtRisk2_S000020421Summary59Member"
      id="ixv-67733">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
risk that: (a) the governmental entity that controls the repayment of government debt may not be willing 
or able to repay the principal and/or to pay the interest when it becomes due, due to factors such as 
political considerations, the relative size of the governmental entity&#x2019;s debt position in relation 
to the economy, cash flow problems, insufficient foreign currency reserves, the failure to put in place 
economic reforms required by the International Monetary Fund or other multilateral agencies, and/or other 
national economic factors; (b) governments may default on their debt securities, which may require holders 
of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy process 
by which defaulted government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_InterestRateRisk2_S000020421Summary59Member"
      id="ixv-67738">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_CreditRisk2_S000020421Summary59Member"
      id="ixv-67743">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_IncomeRisk2_S000020421Summary59Member"
      id="ixv-67748">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_CallRisk2_S000020421Summary59Member"
      id="ixv-67753">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_DerivativesRisk2_S000020421Summary59Member"
      id="ixv-67758">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_LiquidityRisk2_S000020421Summary59Member"
      id="ixv-67766">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity 
risk exists when particular portfolio investments are difficult to purchase or sell. To the extent that 
a fund holds illiquid investments, the fund&#x2019;s performance may be reduced due to an inability to 
sell the investments at opportune prices or times. Liquid portfolio investments may become illiquid or 
less liquid after purchase by a fund due to low trading volume, adverse investor perceptions, credit 
tightening and/or other market developments. Liquidity risk includes the risk that a fund will experience 
significant net redemptions at a time when it cannot find willing buyers for its portfolio securities 
or can only sell its portfolio securities at a material loss or at increased costs. Liquidity risk can 
be more pronounced in periods of market turmoil or in situations where ownership of shares of a fund 
are concentrated in one or a few investors. Investments that are illiquid or that trade in lower volumes 
may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_SecuritiesLendingRisk2_S000020421Summary59Member"
      id="ixv-67771">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_OperationalRisk2_S000020421Summary59Member"
      id="ixv-67775">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_CyberSecurityRisk2_S000020421Summary59Member"
      id="ixv-67780">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275103"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-67790">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275104">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275105"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275106">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275107">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275108">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275109">DFA Selectively 
Hedged Global Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275110">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275111">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275112"
      unitRef="pure">0.0313</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275113">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275114"
      unitRef="pure">-0.0346</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275115">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275116">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275117">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275118"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275119"
      unitRef="pure">0.0169</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275120"
      unitRef="pure">0.0232</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275121">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275122"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275123"
      unitRef="pure">0.0052</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275124"
      unitRef="pure">0.0136</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      id="ixv-275125">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275126"
      unitRef="pure">0.0286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275127"
      unitRef="pure">0.0079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057262Member_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275128"
      unitRef="pure">0.0137</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSEWorldGovernmentBondIndex1-3Years3186_S000020421Member_S000020421Summary59Member"
      id="ixv-275129">FTSE World Government Bond Index 
1-3 Years</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000020421Member_S000020421Summary59Member"
      id="ixv-275130">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSEWorldGovernmentBondIndex1-3Years3187_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275131"
      unitRef="pure">0.0795</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSEWorldGovernmentBondIndex1-3Years3187_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275132"
      unitRef="pure">0.0029</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSEWorldGovernmentBondIndex1-3Years3187_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275133"
      unitRef="pure">0.0130</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3188_S000020421Member_S000020421Summary59Member"
      id="ixv-275134">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3189_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275135"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3189_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275136"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3189_S000020421Member_S000020421Summary59Member"
      decimals="INF"
      id="ixv-275137"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275138"> DFA Five-Year Global Fixed 
Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275139"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68133">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Five-Year Global Fixed Income Portfolio (the &#x201c;Five-Year Global 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide a market rate of return for a fixed income 
portfolio with low relative volatility of returns. The Five-Year Global Portfolio seeks to focus the 
eligible universe on securities with relatively less expected upward or downward movement in market value.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275140"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68140">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275141">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275142">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275143"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275144"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275145"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275146">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68199">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275147"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275148"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275149"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275150"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275151"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275152"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275153"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275154"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275155"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275156"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275157">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68226">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;44%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275158"
      unitRef="pure">0.44</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275159"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68236">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Five-Year Global Portfolio seeks to 
achieve its investment objective by generally investing in a universe of U.S. and foreign debt securities 
maturing in five years or less from the date of settlement. The Portfolio primarily invests in obligations 
issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, corporate 
debt obligations, bank obligations, commercial paper, repurchase agreements, money market funds, securities 
of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, and 
obligations of supranational organizations. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
expects that the Portfolio will primarily invest in the obligations of issuers that are in developed 
countries. The Advisor selects the Portfolio's foreign country and currency compositions based on an 
evaluation of various factors, including, but not limited to, &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;relative interest rates and exchange rates. The fixed income securities in which 
the Portfolio invests are considered investment grade at the time of purchase (e.g., rated AAA to BBB- 
by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa 
to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). The Portfolio intends to invest its 
assets to gain exposure to at least three different countries, including the United States. As of the 
date of the Prospectus, the Portfolio invests approximately 6% of its net assets in U.S. issuers. This 
percentage will change due to market conditions. An issuer may be considered to be of a country if it 
is organized under the laws of, maintains its principal place of business in, has at least 50% of its 
assets or derives at least 50% of its operating income in, or is a government, government agency, instrumentality 
or central bank of, that country. As a non-fundamental policy, under normal circumstances, the Portfolio 
will invest at least 80% of its net assets in fixed income securities that mature within five years from 
the date of settlement.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;It is the policy of the Five-Year Global Portfolio that the 
weighted average effective maturity of investments will not exceed five years. The effective maturity 
adjusts the stated final maturity of a fixed income security for an actual or expected event such as 
a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest rate reset, or other 
similar event. In making purchase decisions, if the expected term premium is greater for longer-term 
securities in the eligible maturity range, the Advisor will focus investment in the longer-term area, 
otherwise, the Portfolio will focus investment in the shorter-term area of the eligible maturity range. 
The Portfolio is authorized to invest more than 25% of its total assets in U.S. Treasury bonds, bills 
and notes and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
many of the Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may 
also enter into foreign currency forward contracts to attempt to protect against uncertainty in the level 
of future foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer 
balances from one currency to another. The Portfolio may purchase or sell futures contracts and options 
on futures contracts, to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging 
purposes, such as a substitute for direct investment or to increase or decrease market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Five-Year Global Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_PrincipalRisks2_S000000969Summary60Member"
      id="ixv-68246">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_RiskLoseMoneyMember_S000000969Summary60Member"
      id="ixv-275160">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_RiskNotInsuredMember_S000000969Summary60Member"
      id="ixv-275161">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_MarketRisk2_S000000969Summary60Member"
      id="ixv-68252">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_ForeignSecuritiesandCurrenciesRisk2_S000000969Summary60Member"
      id="ixv-68257">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_ForeignGovernmentDebtRisk2_S000000969Summary60Member"
      id="ixv-68263">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;economy, cash flow problems, insufficient foreign currency reserves, the failure 
to put in place economic reforms required by the International Monetary Fund or other multilateral agencies, 
and/or other national economic factors; (b) governments may default on their debt securities, which may 
require holders of such securities to participate in debt rescheduling; and (c) there is no legal or 
bankruptcy process by which defaulted government debt may be collected in whole or in part.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_InterestRateRisk2_S000000969Summary60Member"
      id="ixv-68273">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_CreditRisk2_S000000969Summary60Member"
      id="ixv-68278">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_IncomeRisk2_S000000969Summary60Member"
      id="ixv-68283">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_CallRisk2_S000000969Summary60Member"
      id="ixv-68288">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_DerivativesRisk2_S000000969Summary60Member"
      id="ixv-68293">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_LiquidityRisk2_S000000969Summary60Member"
      id="ixv-68297">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_SecuritiesLendingRisk2_S000000969Summary60Member"
      id="ixv-68305">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_OperationalRisk2_S000000969Summary60Member"
      id="ixv-68309">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_CyberSecurityRisk2_S000000969Summary60Member"
      id="ixv-68314">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275162"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-68324">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275163">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275164"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275165">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275166">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275167">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275168">DFA 
Five-Year Global Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275169">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275170">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275171"
      unitRef="pure">0.0232</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275172">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275173"
      unitRef="pure">-0.0458</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275174">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275175">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275176">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275177"
      unitRef="pure">0.0433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275178"
      unitRef="pure">0.0130</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275179"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275180">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275181"
      unitRef="pure">0.0263</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275182"
      unitRef="pure">0.0011</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275183"
      unitRef="pure">0.0070</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      id="ixv-275184">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275185"
      unitRef="pure">0.0255</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275186"
      unitRef="pure">0.0047</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002720Member_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275187"
      unitRef="pure">0.0088</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3190_S000000969Member_S000000969Summary60Member"
      id="ixv-275188">FTSE World Government Bond Index 
1-5 Years (hedged to USD) </oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000969Member_S000000969Summary60Member"
      id="ixv-275189">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3191_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275190"
      unitRef="pure">0.0512</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3191_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275191"
      unitRef="pure">0.0180</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3191_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275192"
      unitRef="pure">0.0208</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3192_S000000969Member_S000000969Summary60Member"
      id="ixv-275193">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3193_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275194"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3193_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275195"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3193_S000000969Member_S000000969Summary60Member"
      decimals="INF"
      id="ixv-275196"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275197"> DFA International Government 
Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275198"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68659">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA International Government Fixed Income Portfolio (the &#x201c;International 
Government Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to maximize total returns from 
the universe of debt securities in which the Portfolio invests. Total return is comprised of income and 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275199"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68666">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275200">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275201">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275202"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275203"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275204"
      unitRef="pure">0.0020</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275205">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68725">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275206"
      unitRef="usd">20</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275207"
      unitRef="usd">20</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275208"
      unitRef="usd">64</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275209"
      unitRef="usd">64</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275210"
      unitRef="usd">113</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275211"
      unitRef="usd">113</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275212"
      unitRef="usd">113</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275213"
      unitRef="usd">255</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275214"
      unitRef="usd">255</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275215"
      unitRef="usd">255</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275216">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68752">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;56%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275217"
      unitRef="pure">0.56</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275218"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68762">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Government Portfolio 
seeks its investment objective by primarily investing in a universe of non-U.S. dollar-denominated obligations 
issued or guaranteed by foreign and U.S. government issuers, their agencies and instrumentalities and 
supranational organizations having investment grade credit ratings at the time of purchase (e.g., rated 
AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). The Portfolio also may invest 
in U.S. dollar-denominated obligations issued or guaranteed by the U.S. government, its agencies and 
instrumentalities to manage cash or to maintain liquidity. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
expects that the Portfolio will primarily invest in the obligations of issuers that are in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;developed countries. The Portfolio intends to invest its assets to gain exposure 
to at least three different countries, excluding the United States. The Advisor selects the Portfolio&#x2019;s 
foreign country and currency compositions based on an evaluation of various factors, including, but not 
limited to, relative interest rates and exchange rates. As a non-fundamental policy, under normal circumstances, 
the Portfolio will invest at least 80% of its net assets in fixed income securities issued or guaranteed 
by foreign governments or their authorities, agencies, instrumentalities or political subdivisions.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, 
the International Government Portfolio will purchase fixed income securities that mature between five 
and fifteen years from the date of settlement. Under normal circumstances, the Portfolio will generally 
maintain a weighted average duration of no more than one quarter year greater than, and no less than 
one year below, the weighted average duration of the FTSE Non-USD World Government Bond Index, Currency-Hedged 
in USD Terms, which was approximately 7.26 years as of December 31, 2025. From time to time, the Portfolio 
may deviate from this duration range when the Advisor determines it to be appropriate under the circumstances. 
Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The 
longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
many of the International Government Portfolio&#x2019;s investments may be denominated in foreign currencies, 
the Portfolio may also enter into foreign currency forward contracts to attempt to protect against uncertainty 
in the level of future foreign currency rates, to hedge against fluctuations in currency exchange rates 
or to transfer balances from one currency to another. The Portfolio may purchase or sell futures contracts 
and options on futures contracts, to hedge its currency exposure or to hedge its interest rate exposure 
or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease market 
exposure based on actual or expected cash inflows to or outflows from the Portfolio. The Portfolio may 
also invest in money market funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Government Portfolio is &#x201c;non-diversified,&#x201d; 
which means that the Portfolio may invest its assets in a smaller number of issuers than a diversified 
fund.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Government Portfolio may lend its portfolio securities to generate 
additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_PrincipalRisks2_S000034651Summary61Member"
      id="ixv-68773">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_RiskLoseMoneyMember_S000034651Summary61Member"
      id="ixv-275219">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_RiskNotInsuredMember_S000034651Summary61Member"
      id="ixv-275220">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_MarketRisk2_S000034651Summary61Member"
      id="ixv-68779">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_ForeignSecuritiesandCurrenciesRisk2_S000034651Summary61Member"
      id="ixv-68784">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_GeographicFocusRisk2_S000034651Summary61Member"
      id="ixv-68790">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_as2_S000034651Summary61Member"
      id="ixv-68798">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;as: adverse securities markets; adverse exchange rates; adverse social, political, 
regulatory, economic, business, environmental or other developments; or natural disasters.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_ForeignGovernmentDebtRisk2_S000034651Summary61Member"
      id="ixv-68800">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
risk that: (a) the governmental entity that controls the repayment of government debt may not be willing 
or able to repay the principal and/or to pay the interest when it becomes due, due to factors such as 
political considerations, the relative size of the governmental entity&#x2019;s debt position in relation 
to the economy, cash flow problems, insufficient foreign currency reserves, the failure to put in place 
economic reforms required by the International Monetary Fund or other multilateral agencies, and/or other 
national economic factors; (b) governments may default on their debt securities, which may require holders 
of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy process 
by which defaulted government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_InterestRateRisk2_S000034651Summary61Member"
      id="ixv-68805">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_Non-DiversificationRisk2_S000034651Summary61Member"
      id="ixv-68810">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Non-Diversification Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that a fund may 
be more volatile than a diversified fund because a fund invests its assets in a smaller number of issuers. 
The gains or losses on a single security, therefore, may have a greater impact on a fund&#x2019;s net 
asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_CreditRisk2_S000034651Summary61Member"
      id="ixv-68815">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_IncomeRisk2_S000034651Summary61Member"
      id="ixv-68820">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_CallRisk2_S000034651Summary61Member"
      id="ixv-68825">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_DerivativesRisk2_S000034651Summary61Member"
      id="ixv-68830">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_LiquidityRisk2_S000034651Summary61Member"
      id="ixv-68838">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity 
risk exists when particular portfolio investments are difficult to purchase or sell. To the extent that 
a fund holds illiquid investments, the fund&#x2019;s performance may be reduced due to an inability to 
sell the investments at opportune prices or times. Liquid portfolio investments may become illiquid or 
less liquid after purchase by a fund due to low trading volume, adverse investor perceptions, credit 
tightening and/or other market developments. Liquidity risk includes the risk that a fund will experience 
significant net redemptions at a time when it cannot find willing buyers for its portfolio securities 
or can only sell its portfolio securities at a material loss or at increased costs. Liquidity risk can 
be more pronounced in periods of market turmoil or in situations where ownership of shares of a fund 
are concentrated in one or a few investors. Investments that are illiquid or that trade in lower volumes 
may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_SecuritiesLendingRisk2_S000034651Summary61Member"
      id="ixv-68843">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_OperationalRisk2_S000034651Summary61Member"
      id="ixv-68847">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_CyberSecurityRisk2_S000034651Summary61Member"
      id="ixv-68852">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275221"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-68862">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275222">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275223"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275224">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275225">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275226">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275227">DFA International 
Government Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275228">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275229">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275230"
      unitRef="pure">0.0844</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275231">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275232"
      unitRef="pure">-0.0740</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275233">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275234">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275235">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275236"
      unitRef="pure">0.0315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275237"
      unitRef="pure">-0.0228</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275238"
      unitRef="pure">0.0147</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275239">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275240"
      unitRef="pure">0.0220</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275241"
      unitRef="pure">-0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275242"
      unitRef="pure">0.0037</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      id="ixv-275243">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275244"
      unitRef="pure">0.0186</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275245"
      unitRef="pure">-0.0207</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000106763Member_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275246"
      unitRef="pure">0.0070</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSENon-USDWorldGovernmentBondIndexhedgedtoUSD3194_S000034651Member_S000034651Summary61Member"
      id="ixv-275247">FTSE Non-USD World Government Bond 
Index (hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000034651Member_S000034651Summary61Member"
      id="ixv-275248">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSENon-USDWorldGovernmentBondIndexhedgedtoUSD3195_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275249"
      unitRef="pure">0.0198</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSENon-USDWorldGovernmentBondIndexhedgedtoUSD3195_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275250"
      unitRef="pure">-0.0064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSENon-USDWorldGovernmentBondIndexhedgedtoUSD3195_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275251"
      unitRef="pure">0.0197</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateex-USDBondIndexhedgedtoUSD3196_S000034651Member_S000034651Summary61Member"
      id="ixv-275252">Bloomberg Global Aggregate ex-USD 
Bond Index (hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateex-USDBondIndexhedgedtoUSD3197_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275253"
      unitRef="pure">0.0280</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateex-USDBondIndexhedgedtoUSD3197_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275254"
      unitRef="pure">0.0079</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateex-USDBondIndexhedgedtoUSD3197_S000034651Member_S000034651Summary61Member"
      decimals="INF"
      id="ixv-275255"
      unitRef="pure">0.0258</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275256"> DFA Short-Term Government 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275257"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69200">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Short-Term Government Portfolio (the &#x201c;Short-Term Government Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to maximize total returns from the universe of debt obligations of 
the U.S. Government and U.S. government agencies. Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275258"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69207">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275259">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275260">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275261"
      unitRef="pure">0.0014</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275262"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275263"
      unitRef="pure">0.0017</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275264">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69266">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275265"
      unitRef="usd">17</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275266"
      unitRef="usd">17</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275267"
      unitRef="usd">55</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275268"
      unitRef="usd">55</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275269"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275270"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275271"
      unitRef="usd">96</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275272"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275273"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275274"
      unitRef="usd">217</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275275">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69293">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;63%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275276"
      unitRef="pure">0.63</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275277"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69303">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Government Portfolio seeks 
to maximize total returns from a universe of obligations of the U.S. Government and its agencies maturing 
in five years or less from the date of settlement. The credit quality of the securities purchased by 
the Portfolio will be that of the U.S. Government or its agencies. As a non-fundamental policy, under 
normal circumstances, the Portfolio will invest at least 80% of its net assets in government securities 
that mature within five years from the date of settlement. It is the policy of the Portfolio that the 
maximum length of maturity of investments will not exceed five years from the date of settlement. In 
making these purchase decisions, if the expected term premium is greater for longer-term securities in 
the eligible maturity range, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) will focus investment 
in that longer-term area, otherwise, the portfolio will focus investment in the shorter-term area of 
the eligible maturity range. The Advisor expects that the Portfolio&#x2019;s weighted &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;average effective maturity and weighted average duration will be three years or 
less. The effective maturity adjusts the stated final maturity of a fixed income security for an actual 
or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest 
rate reset, or other similar event. Duration is a measure of the sensitivity of a security&#x2019;s price 
to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will be to 
interest rates. The Portfolio may also acquire repurchase agreements backed by U.S. government securities. 
The Portfolio may also invest in money market funds. The Portfolio is authorized to invest more than 
25% of its total assets in U.S. Treasury bonds, bills and notes and obligations of federal agencies and 
instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Government Portfolio may purchase or sell futures 
contracts and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, 
such as a substitute for direct investment or to increase or decrease market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Government 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_PrincipalRisks2_S000000984Summary62Member"
      id="ixv-69312">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x75x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_RiskLoseMoneyMember_S000000984Summary62Member"
      id="ixv-275278">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_RiskNotInsuredMember_S000000984Summary62Member"
      id="ixv-275279">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_MarketRisk2_S000000984Summary62Member"
      id="ixv-69318">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_InterestRateRisk2_S000000984Summary62Member"
      id="ixv-69323">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_CreditRisk2_S000000984Summary62Member"
      id="ixv-69328">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_IncomeRisk2_S000000984Summary62Member"
      id="ixv-69333">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_LiquidityRisk2_S000000984Summary62Member"
      id="ixv-69338">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_DerivativesRisk2_S000000984Summary62Member"
      id="ixv-69347">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as futures contracts, and options thereon, whose value is derived from that of 
other assets, rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting 
one investment position with another) or non-hedging purposes. Hedging with derivatives may increase 
expenses, and there is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate 
losses, it can also reduce or eliminate gains or cause losses if the market moves in a manner different 
from that anticipated by a fund or if the cost of the derivative outweighs the benefit of the hedge. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_SecuritiesLendingRisk2_S000000984Summary62Member"
      id="ixv-69351">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_OperationalRisk2_S000000984Summary62Member"
      id="ixv-69355">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_CyberSecurityRisk2_S000000984Summary62Member"
      id="ixv-69360">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275280"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-69370">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275281">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275282"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275283">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275284">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275285">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275286">DFA Short-Term 
Government Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275287">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275288">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275289"
      unitRef="pure">0.0167</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275290">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275291"
      unitRef="pure">-0.0358</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275292">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275293">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275294">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275295"
      unitRef="pure">0.0415</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275296"
      unitRef="pure">0.0168</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275297"
      unitRef="pure">0.0139</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275298">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275299"
      unitRef="pure">0.0249</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275300"
      unitRef="pure">0.0050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275301"
      unitRef="pure">0.0055</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      id="ixv-275302">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275303"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275304"
      unitRef="pure">0.0077</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002735Member_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275305"
      unitRef="pure">0.0070</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-5YearUSTreasuryAgencyIndex3198_S000000984Member_S000000984Summary62Member"
      id="_4943_">ICE BofA 1-5 Year US Treasury 
&amp; Agency Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000984Member_S000000984Summary62Member"
      id="ixv-275307">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-5YearUSTreasuryAgencyIndex3199_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275308"
      unitRef="pure">0.0573</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-5YearUSTreasuryAgencyIndex3199_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275309"
      unitRef="pure">0.0135</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-5YearUSTreasuryAgencyIndex3199_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275310"
      unitRef="pure">0.0183</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3200_S000000984Member_S000000984Summary62Member"
      id="ixv-275311">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3201_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275312"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3201_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275313"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3201_S000000984Member_S000000984Summary62Member"
      decimals="INF"
      id="ixv-275314"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275315"> DFA Intermediate Government 
Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275316"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69719">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Intermediate Government Fixed Income Portfolio (the &#x201c;Intermediate 
Government Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to earn current income consistent with 
preservation of capital.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275317"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69726">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275318">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275319">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275320"
      unitRef="pure">0.0009</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275321"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275322"
      unitRef="pure">0.0012</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275323">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69785">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275324"
      unitRef="usd">12</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275325"
      unitRef="usd">12</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275326"
      unitRef="usd">39</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275327"
      unitRef="usd">39</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275328"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275329"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275330"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275331"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275332"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275333"
      unitRef="usd">154</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275334">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69812">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;13%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275335"
      unitRef="pure">0.13</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275336"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69822">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate Government Portfolio 
primarily invests in high quality, low-risk obligations of the U.S. Government and its agencies with 
maturities between five and fifteen years from the date of settlement. The Portfolio normally invests 
in non-callable obligations issued or guaranteed by the U.S. Government and U.S. government agencies, 
AAA-rated, dollar-denominated obligations of foreign governments, obligations of supranational organizations, 
and futures contracts on U.S. Treasury securities. Since government guaranteed mortgage-backed securities 
are considered callable, such securities will not be included in the Portfolio.  Generally, the Intermediate 
Government Portfolio will purchase securities with maturities between five and fifteen years from the 
date of settlement. The Portfolio will not shift the maturity of its investments in anticipation of interest 
rate movements and ordinarily will &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;have a weighted average effective maturity, based upon market values, between 
three and ten years. The effective maturity adjusts the stated final maturity of a fixed income security 
for an actual or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, 
coupon or interest rate reset, or other similar event. Under normal circumstances, when determining its 
duration, the Portfolio will consider a duration similar to the Bloomberg U.S. Government Bond Index, 
which was approximately 5.85 years as of December 31, 2025. In any event, as a non-fundamental policy, 
under normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed income 
government securities and maintain a weighted average effective maturity between three and ten years. 
Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The 
longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Intermediate Government Portfolio may invest a portion of its assets in the obligations of foreign governments. 
Those obligations at the time of purchase must be either rated in the highest rating category of a nationally 
recognized statistical rating organization or, in the case of any obligation that is unrated, of comparable 
quality. The Portfolio is authorized to invest more than 25% of its total assets in U.S. Treasury bonds, 
bills and notes and obligations of federal agencies and instrumentalities. The Portfolio may also invest 
in money market funds. The Portfolio also may purchase or sell futures contracts on U.S. Treasury securities 
or options on such contracts to increase or decrease market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio. However, the Portfolio will not purchase or sell futures contracts 
or options thereon if as a result more than 5% of its net assets would then consist of initial margin 
deposits and premiums required to establish such positions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate Government 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_PrincipalRisks2_S000000986Summary63Member"
      id="ixv-69831">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x85x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_RiskLoseMoneyMember_S000000986Summary63Member"
      id="ixv-275337">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_RiskNotInsuredMember_S000000986Summary63Member"
      id="ixv-275338">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_MarketRisk2_S000000986Summary63Member"
      id="ixv-69837">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_InterestRateRisk2_S000000986Summary63Member"
      id="ixv-69842">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_CreditRisk2_S000000986Summary63Member"
      id="ixv-69847">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_IncomeRisk2_S000000986Summary63Member"
      id="ixv-69852">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_DerivativesRisk2_S000000986Summary63Member"
      id="ixv-69857">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging 
purposes may be considered to &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;carry more risk than other types of investments. When a fund uses derivatives, 
the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject 
to a number of risks including counterparty, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_LiquidityRisk2_S000000986Summary63Member"
      id="ixv-69866">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_SecuritiesLendingRisk2_S000000986Summary63Member"
      id="ixv-69871">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_OperationalRisk2_S000000986Summary63Member"
      id="ixv-69875">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_CyberSecurityRisk2_S000000986Summary63Member"
      id="ixv-69880">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275339"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-69890">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275340">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275341"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275342">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275343">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275344">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275345">DFA Intermediate 
Government Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275346">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275347">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275348"
      unitRef="pure">0.0857</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275349">2020-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275350"
      unitRef="pure">-0.0598</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275351">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275352">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275353">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275354"
      unitRef="pure">0.0714</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275355"
      unitRef="pure">-0.0108</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275356"
      unitRef="pure">0.0146</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275357">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275358"
      unitRef="pure">0.0584</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275359"
      unitRef="pure">-0.0202</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275360"
      unitRef="pure">0.0049</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      id="ixv-275361">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275362"
      unitRef="pure">0.0421</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275363"
      unitRef="pure">-0.0120</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002737Member_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275364"
      unitRef="pure">0.0074</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSGovernmentBondIndex3203_S000000986Member_S000000986Summary63Member"
      id="ixv-275365">Bloomberg U.S. Government Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000986Member_S000000986Summary63Member"
      id="ixv-275366">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSGovernmentBondIndex3204_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275367"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSGovernmentBondIndex3204_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275368"
      unitRef="pure">-0.0094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSGovernmentBondIndex3204_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275369"
      unitRef="pure">0.0138</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3205_S000000986Member_S000000986Summary63Member"
      id="ixv-275370">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3206_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275371"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3206_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275372"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3206_S000000986Member_S000000986Summary63Member"
      decimals="INF"
      id="ixv-275373"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275374"> DFA Short-Term Extended Quality 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275375"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70229">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Short-Term Extended Quality Portfolio (the &#x201c;Short-Term Extended 
Quality Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to maximize total returns from the universe 
of debt securities in which the Portfolio invests. Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275376"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70236">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275377">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275378">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275379"
      unitRef="pure">0.0015</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275380"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275381"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275382">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70295">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275383"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275384"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275385"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275386"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275387"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275388"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275389"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275390"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275391"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275392"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275393">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70322">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;47%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275394"
      unitRef="pure">0.47</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275395"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70332">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Extended Quality Portfolio 
seeks to maximize total returns from a universe of U.S. and foreign corporate debt securities with an 
investment grade credit rating (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
In addition, the Portfolio may invest in obligations issued or guaranteed by the U.S. and foreign governments, 
their agencies and instrumentalities, bank obligations, commercial paper, repurchase agreements, money 
market funds, obligations of other domestic and foreign issuers having investment grade ratings, securities 
of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, and 
obligations of supranational organizations. The Portfolio generally invests with an emphasis on debt 
securities rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s. The Portfolio will increase 
or decrease investment exposure to lower-rated investment grade securities &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;(i.e., those rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s) 
depending on the expected credit premium.  The Advisor expects that the Portfolio will primarily invest 
in the obligations of issuers that are in developed countries.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Extended 
Quality Portfolio primarily invests in securities that mature within five years from the date of settlement 
and maintains a weighted average effective maturity and a weighted average duration of three years or 
less. In making these purchase decisions, if the expected term premium is greater for longer-term securities 
in the eligible maturity range, the Advisor will focus on investment in the longer-term area, otherwise, 
the Portfolio will focus its investment in the shorter-term area of the eligible maturity range. The 
effective maturity adjusts the stated final maturity of a fixed income security for an actual or expected 
event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest rate 
reset, or other similar event. Duration is a measure of the sensitivity of a security&#x2019;s price to 
changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will be to changes 
in interest rates. As a non-fundamental policy, under normal circumstances, the Portfolio will invest 
at least 80% of its net assets in fixed income securities considered to be investment grade quality. 
In addition, the Portfolio is authorized to invest more than 25% of its total assets in U.S. Treasury 
bonds, bills and notes, and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Short-Term Extended Quality Portfolio&#x2019;s investments may include securities denominated in foreign 
currencies. The Portfolio intends to hedge foreign currency exposure to attempt to protect against uncertainty 
in the level of future foreign currency rates. The Portfolio may enter into foreign currency forward 
contracts to hedge against fluctuations in currency exchange rates or to transfer balances from one currency 
to another. The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell 
credit protection to hedge its credit exposure; gain market or issuer exposure without owning the underlying 
securities; or increase the Portfolio&#x2019;s total return. The Portfolio may purchase or sell futures 
contracts and options on futures contracts, to hedge its currency exposure or to hedge its interest rate 
exposure or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease 
market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Short-Term Extended Quality Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_PrincipalRisks2_S000024202Summary64Member"
      id="ixv-70342">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x95x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_RiskLoseMoneyMember_S000024202Summary64Member"
      id="ixv-275396">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_RiskNotInsuredMember_S000024202Summary64Member"
      id="ixv-275397">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_MarketRisk2_S000024202Summary64Member"
      id="ixv-70348">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_ForeignSecuritiesandCurrenciesRisk2_S000024202Summary64Member"
      id="ixv-70353">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because 
of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities 
markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility 
that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will 
convert, or be forced to convert, its currency to another currency, changing its value against the U.S. 
dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_ForeignGovernmentDebtRisk2_S000024202Summary64Member"
      id="ixv-70359">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;required by the International Monetary Fund or other multilateral agencies, and/or 
other national economic factors; (b) governments may default on their debt securities, which may require 
holders of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy 
process by which defaulted government debt may be collected in whole or in part.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_InterestRateRisk2_S000024202Summary64Member"
      id="ixv-70369">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_CreditRisk2_S000024202Summary64Member"
      id="ixv-70374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_IncomeRisk2_S000024202Summary64Member"
      id="ixv-70379">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_CallRisk2_S000024202Summary64Member"
      id="ixv-70384">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_DerivativesRisk2_S000024202Summary64Member"
      id="ixv-70389">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_LiquidityRisk2_S000024202Summary64Member"
      id="ixv-70393">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;it cannot find willing buyers for its portfolio securities or can only sell its 
portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced 
in periods of market turmoil or in situations where ownership of shares of a fund are concentrated in 
one or a few investors. Investments that are illiquid or that trade in lower volumes may be more difficult 
to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_SecuritiesLendingRisk2_S000024202Summary64Member"
      id="ixv-70403">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_OperationalRisk2_S000024202Summary64Member"
      id="ixv-70407">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_CyberSecurityRisk2_S000024202Summary64Member"
      id="ixv-70412">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275398"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-70422">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275399">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275400"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275401">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275402">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275403">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275404">DFA Short-Term 
Extended Quality Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275405">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275406">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275407"
      unitRef="pure">0.0211</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275408">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275409"
      unitRef="pure">-0.0351</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275410">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275411">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275412">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275413"
      unitRef="pure">0.0492</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275414"
      unitRef="pure">0.0192</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275415"
      unitRef="pure">0.0217</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275416">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275417"
      unitRef="pure">0.0313</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275418"
      unitRef="pure">0.0071</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275419"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      id="ixv-275420">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275421"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275422"
      unitRef="pure">0.0094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071023Member_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275423"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-5YearUSCorporateGovernmentIndex3207_S000024202Member_S000024202Summary64Member"
      id="_5126_">ICE BofA 1-5 Year US Corporate 
&amp; Government Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000024202Member_S000024202Summary64Member"
      id="ixv-275425">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-5YearUSCorporateGovernmentIndex3208_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275426"
      unitRef="pure">0.0606</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-5YearUSCorporateGovernmentIndex3208_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275427"
      unitRef="pure">0.0160</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-5YearUSCorporateGovernmentIndex3208_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275428"
      unitRef="pure">0.0219</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3209_S000024202Member_S000024202Summary64Member"
      id="ixv-275429">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3210_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275430"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3210_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275431"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3210_S000024202Member_S000024202Summary64Member"
      decimals="INF"
      id="ixv-275432"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275433"> DFA Intermediate-Term Extended 
Quality Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275434"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70776">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Intermediate-Term Extended Quality Portfolio (the &#x201c;Intermediate-Term 
Extended Quality Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to maximize total returns from the 
universe of debt securities in which the Portfolio invests. Total return is comprised of income and capital 
appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275435"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70783">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275436">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275437">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275438"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275439"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275440"
      unitRef="pure">0.0020</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275441">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70844">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275442"
      unitRef="usd">20</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275443"
      unitRef="usd">20</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275444"
      unitRef="usd">64</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275445"
      unitRef="usd">64</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275446"
      unitRef="usd">113</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275447"
      unitRef="usd">113</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275448"
      unitRef="usd">113</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275449"
      unitRef="usd">255</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275450"
      unitRef="usd">255</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275451"
      unitRef="usd">255</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275452">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70871">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;35%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275453"
      unitRef="pure">0.35</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275454"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70881">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate-Term Extended Quality 
Portfolio seeks to maximize total returns from a universe of U.S. and foreign corporate debt securities 
with an investment grade credit rating (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)).&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;In 
addition, the Portfolio may invest in obligations issued or guaranteed by the U.S. and foreign governments, 
their agencies and instrumentalities, bank obligations, repurchase agreements, money market funds, obligations 
of other domestic and foreign issuers having investment grade ratings, securities of domestic or foreign 
issuers denominated in U.S. dollars but not trading in the United States, and obligations of supranational 
organizations. The Portfolio generally invests with an emphasis on debt securities rated A+ to BBB- by 
S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s. &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio will increase or decrease investment exposure to lower-rated investment 
grade securities (i.e., those rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s) depending 
on the expected credit premium. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that 
the Portfolio will primarily invest in the obligations of issuers that are in developed countries.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Intermediate-Term Extended Quality Portfolio primarily invests in securities that mature within three 
to twenty years from the date of settlement. Under normal circumstances, the Portfolio will generally 
maintain a weighted average duration of no more than one quarter year greater than, and no less than 
one year below, the weighted average duration of the Bloomberg U.S. Credit Bond Index, which was approximately 
6.67 years as of December 31, 2025. From time to time, the Portfolio may deviate from this duration range 
when the Advisor determines it to be appropriate under the circumstances. In any event, the Portfolio 
will ordinarily maintain a weighted average duration between three and ten years. Duration is a measure 
of the sensitivity of a security&#x2019;s price to changes in interest rates. The longer a security&#x2019;s 
duration, the more sensitive it will be to changes in interest rates. As a non-fundamental policy, under 
normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed income securities 
considered to be investment grade quality. In addition, the Portfolio is authorized to invest more than 
25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies 
and instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate-Term Extended Quality Portfolio&#x2019;s investments 
may include securities denominated in foreign currencies. The Portfolio intends to hedge foreign currency 
exposure to attempt to protect against uncertainty in the level of future foreign currency rates. The 
Portfolio may enter into foreign currency forward contracts to hedge against fluctuations in currency 
exchange rates or to transfer balances from one currency to another. The Portfolio also may enter into 
credit default swaps on issuers or indices to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Portfolio&#x2019;s 
total return. The Portfolio may purchase or sell futures contracts and options on futures contracts, 
to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate-Term 
Extended Quality Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_PrincipalRisks2_S000024203Summary65Member"
      id="ixv-70892">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x105x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_RiskLoseMoneyMember_S000024203Summary65Member"
      id="ixv-275455">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_RiskNotInsuredMember_S000024203Summary65Member"
      id="ixv-275456">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_MarketRisk2_S000024203Summary65Member"
      id="ixv-70898">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_ForeignSecuritiesandCurrenciesRisk2_S000024203Summary65Member"
      id="ixv-70903">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_ForeignGovernmentDebtRisk2_S000024203Summary65Member"
      id="ixv-70909">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;economy, cash flow problems, insufficient foreign currency reserves, the failure 
to put in place economic reforms required by the International Monetary Fund or other multilateral agencies, 
and/or other national economic factors; (b) governments may default on their debt securities, which may 
require holders of such securities to participate in debt rescheduling; and (c) there is no legal or 
bankruptcy process by which defaulted government debt may be collected in whole or in part.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_InterestRateRisk2_S000024203Summary65Member"
      id="ixv-70919">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_CreditRisk2_S000024203Summary65Member"
      id="ixv-70924">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_IncomeRisk2_S000024203Summary65Member"
      id="ixv-70929">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_CallRisk2_S000024203Summary65Member"
      id="ixv-70934">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_DerivativesRisk2_S000024203Summary65Member"
      id="ixv-70939">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_LiquidityRisk2_S000024203Summary65Member"
      id="ixv-70943">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
&lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;developments. Liquidity risk includes the risk that a fund will experience significant 
net redemptions at a time when it cannot find willing buyers for its portfolio securities or can only 
sell its portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced 
in periods of market turmoil or in situations where ownership of shares of a fund are concentrated in 
one or a few investors. Investments that are illiquid or that trade in lower volumes may be more difficult 
to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_SecuritiesLendingRisk2_S000024203Summary65Member"
      id="ixv-70953">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_OperationalRisk2_S000024203Summary65Member"
      id="ixv-70957">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_CyberSecurityRisk2_S000024203Summary65Member"
      id="ixv-70962">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275457"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-70972">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275458">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275459"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275460">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275461">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275462">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275463">DFA Intermediate-Term 
Extended Quality Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275464">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275465">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275466"
      unitRef="pure">0.0877</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275467">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275468"
      unitRef="pure">-0.0779</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275469">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275470">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275471">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275472"
      unitRef="pure">0.0804</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275473"
      unitRef="pure">-0.0002</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275474"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275475">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275476"
      unitRef="pure">0.0603</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275477"
      unitRef="pure">-0.0157</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275478"
      unitRef="pure">0.0153</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      id="ixv-275479">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275480"
      unitRef="pure">0.0473</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275481"
      unitRef="pure">-0.0066</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000071024Member_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275482"
      unitRef="pure">0.0168</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSCreditBondIndex3212_S000024203Member_S000024203Summary65Member"
      id="ixv-275483">Bloomberg U.S. Credit Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000024203Member_S000024203Summary65Member"
      id="ixv-275484">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSCreditBondIndex3213_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275485"
      unitRef="pure">0.0783</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSCreditBondIndex3213_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275486"
      unitRef="pure">-0.0005</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSCreditBondIndex3213_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275487"
      unitRef="pure">0.0315</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3214_S000024203Member_S000024203Summary65Member"
      id="ixv-275488">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3215_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275489"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3215_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275490"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3215_S000024203Member_S000024203Summary65Member"
      decimals="INF"
      id="ixv-275491"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275492"> DFA Targeted Credit Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275493"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71315">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Targeted Credit Portfolio (the &#x201c;Targeted Credit Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to maximize total returns from the universe of debt securities in 
which the Portfolio invests. Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275494"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71322">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275495">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275496">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275497"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275498"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275499"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="_5239_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275501"
      unitRef="pure">0.0020</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275502">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71405">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275503"
      unitRef="usd">20</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275504"
      unitRef="usd">20</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275505"
      unitRef="usd">69</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275506"
      unitRef="usd">69</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275507"
      unitRef="usd">122</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275508"
      unitRef="usd">122</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275509"
      unitRef="usd">122</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275510"
      unitRef="usd">278</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275511"
      unitRef="usd">278</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275512"
      unitRef="usd">278</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275513">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71432">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;70%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275514"
      unitRef="pure">0.70</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275515"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71445">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Targeted Credit Portfolio seeks to maximize total returns from a universe of U.S. and foreign corporate 
debt securities that mature within five years from the date of settlement. In addition, the Portfolio 
may invest in obligations issued or guaranteed by the U.S. and foreign governments, their agencies and 
instrumentalities, bank obligations, commercial paper, repurchase agreements, money market funds, obligations 
of other domestic and foreign issuers, securities of domestic or foreign issuers denominated in U.S. 
dollars but not trading in the United States, and obligations of supranational organizations. The Portfolio 
generally emphasizes investments in debt securities rated A+ to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or A1 to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;). 
The Portfolio may also invest in higher-rated investment grade securities (i.e., those rated AAA to AA- 
by S&amp;amp;P or Fitch or Aaa to Aa3 by Moody&#x2019;s) and/or below-investment grade securities (i.e., those 
rated below BBB- by S&amp;amp;P or Fitch or below Baa3 by Moody&#x2019;s) depending on the expected credit 
premium. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that the Portfolio will primarily 
invest in the obligations of issuers that are in developed countries.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the Targeted Credit Portfolio will invest at least 80% of its net assets 
in debt securities. The Portfolio seeks to maintain a weighted average effective maturity and a weighted 
average duration of five years or less. The effective maturity adjusts the stated final maturity of a 
fixed income security for an actual or expected event such as a call, put, tender, mandatory early redemption, 
pre-refunding, coupon or interest rate reset, or other similar event. Duration is a measure of the sensitivity 
of a security&#x2019;s price to changes in interest rates. The longer a security&#x2019;s duration, the 
more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Targeted Credit Portfolio&#x2019;s 
investments may include securities denominated in foreign currencies. The Portfolio intends to hedge 
foreign currency exposure to attempt to protect against uncertainty in the level of future foreign currency 
rates. The Portfolio may enter into foreign currency forward contracts to hedge against fluctuations 
in currency exchange rates or to transfer balances from one currency to another. The Portfolio also may 
enter into credit default swaps on issuers or indices to buy or sell credit protection to hedge its credit 
exposure; gain market or issuer exposure without owning the underlying securities; or increase the Portfolio&#x2019;s 
total return. The Portfolio may purchase or sell futures contracts and options on futures contracts, 
to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Targeted Credit Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_PrincipalRisks2_S000049338Summary66Member"
      id="ixv-71450">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x115x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_RiskLoseMoneyMember_S000049338Summary66Member"
      id="ixv-275516">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_RiskNotInsuredMember_S000049338Summary66Member"
      id="ixv-275517">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_MarketRisk2_S000049338Summary66Member"
      id="ixv-71456">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_ForeignSecuritiesandCurrenciesRisk2_S000049338Summary66Member"
      id="ixv-71461">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;obtaining judgments with respect to foreign investments in foreign courts than 
with respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_ForeignGovernmentDebtRisk2_S000049338Summary66Member"
      id="ixv-71472">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the 
governmental entity that controls the repayment of government debt may not be willing or able to repay 
the principal and/or to pay the interest when it becomes due, due to factors such as political considerations, 
the relative size of the governmental entity&#x2019;s debt position in relation to the economy, cash flow 
problems, insufficient foreign currency reserves, the failure to put in place economic reforms required 
by the International Monetary Fund or other multilateral agencies, and/or other national economic factors; 
(b) governments may default on their debt securities, which may require holders of such securities to 
participate in debt rescheduling; and (c) there is no legal or bankruptcy process by which defaulted 
government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_InterestRateRisk2_S000049338Summary66Member"
      id="ixv-71477">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_CreditRisk2_S000049338Summary66Member"
      id="ixv-71482">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived 
change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, impact 
the performance of a fund holding such securities. Government agency obligations have different levels 
of credit support and, therefore, different degrees of credit risk. Securities issued by agencies and 
instrumentalities of the U.S. Government that are supported by the full faith and credit of the United 
States, such as the Federal Housing Administration and Ginnie Mae, present little credit risk. Other 
securities issued by agencies and instrumentalities sponsored by the U.S. Government, that are supported 
only by the issuer&#x2019;s right to borrow from the U.S. Treasury, subject to certain limitations, and 
securities issued by agencies and instrumentalities sponsored by the U.S. Government that are sponsored 
by the credit of the issuing agencies, such as Freddie Mac and Fannie Mae, are subject to a greater degree 
of credit risk. U.S. government agency securities issued or guaranteed by the credit of the agency may 
still involve a risk of non-payment of principal and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_HighYieldRisk2_S000049338Summary66Member"
      id="ixv-71487">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Yield Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities rated below 
investment grade may be subject to greater credit, valuation, price volatility, and liquidity risks than 
investment grade securities. Fixed income securities that are below investment grade involve high credit 
risk and are considered speculative. Below investment grade fixed income securities may also fluctuate 
in value more than higher quality fixed income securities and, during periods of market volatility, may 
be more difficult to sell at the time and price a fund desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_IncomeRisk2_S000049338Summary66Member"
      id="ixv-71492">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_CallRisk2_S000049338Summary66Member"
      id="ixv-71497">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_DerivativesRisk2_S000049338Summary66Member"
      id="ixv-71502">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_LiquidityRisk2_S000049338Summary66Member"
      id="ixv-71511">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_SecuritiesLendingRisk2_S000049338Summary66Member"
      id="ixv-71516">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_OperationalRisk2_S000049338Summary66Member"
      id="ixv-71520">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_CyberSecurityRisk2_S000049338Summary66Member"
      id="ixv-71525">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275518"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-71535">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275519">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275520"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275521">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275522">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275523">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275524">DFA Targeted 
Credit Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275525">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275526">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275527"
      unitRef="pure">0.0415</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275528">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275529"
      unitRef="pure">-0.0469</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275530">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275531">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275532">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275533"
      unitRef="pure">0.0536</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275534"
      unitRef="pure">0.0175</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275535"
      unitRef="pure">0.0240</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275536">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275537"
      unitRef="pure">0.0362</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275538"
      unitRef="pure">0.0058</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275539"
      unitRef="pure">0.0132</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      id="ixv-275540">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275541"
      unitRef="pure">0.0315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275542"
      unitRef="pure">0.0083</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156056Member_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275543"
      unitRef="pure">0.0137</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateCreditBondIndex1-5YearshedgedtoUSD3216_S000049338Member_S000049338Summary66Member"
      id="ixv-275544">Bloomberg Global Aggregate Credit 
Bond Index 1-5 Years (hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000049338Member_S000049338Summary66Member"
      id="ixv-275545">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateCreditBondIndex1-5YearshedgedtoUSD3217_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275546"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateCreditBondIndex1-5YearshedgedtoUSD3217_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275547"
      unitRef="pure">0.0235</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateCreditBondIndex1-5YearshedgedtoUSD3217_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275548"
      unitRef="pure">0.0294</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3218_S000049338Member_S000049338Summary66Member"
      id="ixv-275549">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3219_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275550"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3219_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275551"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3219_S000049338Member_S000049338Summary66Member"
      decimals="INF"
      id="ixv-275552"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275553"> DFA Global Core Plus Fixed 
Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275554"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-71873">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Global Core Plus Fixed Income Portfolio (the &#x201c;Global Core Plus 
Fixed Income Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to maximize total returns from the universe 
of fixed income securities in which the Portfolio invests. Total return is comprised of income and capital 
appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275555"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-71880">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275556">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275557">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275558"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275559"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275560"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="_5335_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275562"
      unitRef="pure">0.0023</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275563">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-71963">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275564"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275565"
      unitRef="usd">24</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275566"
      unitRef="usd">76</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275567"
      unitRef="usd">76</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275568"
      unitRef="usd">134</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275569"
      unitRef="usd">134</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275570"
      unitRef="usd">134</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275571"
      unitRef="usd">305</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275572"
      unitRef="usd">305</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275573"
      unitRef="usd">305</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275574">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-71990">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;44%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275575"
      unitRef="pure">0.44</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275576"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-72003">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Core Plus Fixed Income Portfolio seeks to achieve its investment objective by investing in a universe 
of U.S. and foreign debt securities. The Portfolio may invest in obligations issued or guaranteed by 
the U.S. and foreign governments, their agencies and instrumentalities, including mortgage-backed securities, 
corporate debt obligations, bank obligations, commercial paper, repurchase agreements, money market funds, 
securities of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, 
and obligations of supranational organizations. The Portfolio may purchase or sell mortgage-backed securities 
on a delayed delivery or forward commitment basis through the &#x201c;to-be-announced&#x201d; (TBA) market. 
Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that the Portfolio will primarily invest 
in the obligations of issuers that are in developed countries. However, the Advisor may invest in issuers 
located in other countries as well, which may include emerging markets. The Advisor selects the Portfolio's 
foreign country and currency compositions based on an evaluation of various factors, including, but not 
limited to, relative interest rates and exchange rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Core Plus Fixed 
Income Portfolio may invest in fixed income securities considered investment grade at the time of purchase 
(e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)) and in lower-rated (i.e., below 
investment grade, also known as &#x201c;junk&#x201d; bonds) fixed income securities. The Portfolio may 
invest with an emphasis on fixed income securities rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 
by Moody&#x2019;s. In addition, the Portfolio may invest in fixed income securities rated below investment 
grade. The Portfolio will be managed with a view to capturing expected credit premiums and expected term 
premiums. The term &#x201c;expected credit premium&#x201d; means the expected incremental return on investment 
for holding obligations considered to have greater credit risk than direct obligations of the U.S. Treasury, 
and &#x201c;expected term premium&#x201d; means the expected incremental return on investment for holding 
securities having longer-term maturities as compared to shorter-term maturities. In managing the Portfolio, 
the Advisor will increase or decrease investment exposure to intermediate-term securities depending on 
the expected term premium and also increase or decrease investment exposure to lower-rated debt securities 
depending on the expected credit premium.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Core Plus Fixed Income 
Portfolio primarily invests in securities that mature within twenty years from the date of settlement, 
but may, as in the case of mortgage-backed securities, invest in securities with longer maturities. Under 
normal circumstances, the Portfolio will generally maintain a weighted average duration of no more than 
one half year greater than, and no less than one year below, the weighted average duration of the Bloomberg 
Global Aggregate Bond Index (hedged to USD), which was approximately 6.34 years as of December 31, 2025. 
From time to time, the Portfolio may deviate from this duration range when the Advisor determines it 
to be appropriate under the circumstances. Duration is a measure of the sensitivity of a security&#x2019;s 
price to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will 
be to changes in interest rates. The Portfolio is authorized to invest more than 25% of its total assets 
in U.S. Treasury bonds, bills and notes, and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Core Plus Fixed Income Portfolio intends to invest its assets to gain exposure to at least three 
different countries, including the United States. As of the date of the Prospectus, the Portfolio invests 
approximately 46% of its net assets in U.S. issuers. This percentage will change due to market conditions. 
An issuer may be considered to be of a country if it is organized under the laws of, maintains its principal 
place of business in, has at least 50% of its assets or derives at least 50% of its operating income 
in, or is a government, government agency, instrumentality or central bank of, that country. As a non-fundamental 
policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in fixed 
income securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because many of the Global Core Plus Fixed Income Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency forward 
contracts to attempt to protect against uncertainty in the level of future foreign currency rates, to 
hedge against fluctuations in currency exchange rates or to transfer balances from one currency to another. 
The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Portfolio&#x2019;s total return. The Portfolio may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate or currency exposure or for non-hedging 
purposes, such as a substitute for direct investment or to increase or decrease market exposure, including 
adjustments based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Core Plus Fixed Income Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_PrincipalRisks2_S000060107Summary67Member"
      id="ixv-72013">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x125x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_RiskLoseMoneyMember_S000060107Summary67Member"
      id="ixv-275577">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_RiskNotInsuredMember_S000060107Summary67Member"
      id="ixv-275578">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_MarketRisk2_S000060107Summary67Member"
      id="ixv-72019">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_ForeignSecuritiesandCurrenciesRisk2_S000060107Summary67Member"
      id="ixv-72024">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because 
of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities 
markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility 
that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will 
convert, or be forced to convert, its currency to another currency, changing its value against the U.S. 
dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_ForeignGovernmentDebtRisk2_S000060107Summary67Member"
      id="ixv-72030">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_EmergingMarketsRisk2_S000060107Summary67Member"
      id="ixv-72035">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries may be subject 
to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous 
emerging market countries have a history of, and continue to experience serious, and potentially continuing, 
economic and political problems. Stock markets in many emerging market countries are relatively small, 
expensive to trade in and generally have higher risks than those in developed markets. Securities in 
emerging markets also may be less liquid than those in developed markets and foreigners are often limited 
in their ability to invest in, and withdraw assets from, these markets. Additional restrictions may be 
imposed under other conditions. Frontier market countries generally have smaller economies or less developed 
capital markets and, as a result, the risks of investing in emerging market countries are magnified in 
frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_ChinaInvestmentsRisk2_S000060107Summary67Member"
      id="ixv-72042">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, 
Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly interconnected and interdependent, with 
relationships built on trade, finance, culture, and politics. Despite prior economic and trade reforms 
and the prior expansion of private ownership of companies in certain sectors, the Chinese government 
still exercises substantial influence over many aspects of the private sector and may own or control 
many companies, including by embedding Chinese Communist Party or People&#x2019;s Armed Forces Department 
personnel in Chinese companies. In addition, the Chinese government continues to maintain a major role 
in economic policy making and may alter or discontinue economic or trade reforms at any time. Investing 
in China involves risks of losses due to expropriation, nationalization, confiscation of assets and property, 
and the imposition of restrictions on foreign investments and on repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments 
in China, Hong Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating 
relations with the U.S. as economic and strategic competition between the U.S. and China intensifies, 
which could result in further tariffs, trade restrictions, sanctions, or other actions that adversely 
impact the value of such &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_Mortgage-BackedSecuritiesRisk2_S000060107Summary67Member"
      id="ixv-72053">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Mortgage-Backed 
Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Mortgage-backed securities 
represent interests in &#x201c;pools&#x201d; of mortgages and often involve risks that are different from 
or potentially more significant than risks associated with other types of debt instruments. Mortgage 
securities differ from typical debt securities in that principal is not paid back at maturity, but rather 
periodically over the life of the security. A fund may receive unscheduled payments of principal due 
to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. When interest 
rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce the returns 
of a fund because it may have to reinvest that money at the lower prevailing interest rates. As a result, 
mortgage securities may be less effective than some other types of debt securities as a means of securing 
long-term interest rates and may have less potential for capital appreciation during periods of falling 
interest rates. Conversely, in a period of rising interest rates, a fund may exhibit additional volatility 
since rising interest rates tend to extend the duration of fixed rate mortgage-related securities, making 
them more sensitive to changes in interest rates. As interest rates rise mortgage borrowers are less 
likely to exercise prepayment options, which may reduce the value of these securities and potentially 
cause a fund to lose money. This is known as extension risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_InterestRateRisk2_S000060107Summary67Member"
      id="ixv-72058">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_CreditRisk2_S000060107Summary67Member"
      id="ixv-72063">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived 
change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, impact 
the performance of a fund holding such securities. Government agency obligations have different levels 
of credit support and, therefore, different degrees of credit risk. Securities issued by agencies and 
instrumentalities of the U.S. Government that are supported by the full faith and credit of the United 
States, such as the Federal Housing Administration and Ginnie Mae, present little credit risk. Other 
securities issued by agencies and instrumentalities sponsored by the U.S. Government, that are supported 
only by the issuer&#x2019;s right to borrow from the U.S. Treasury, subject to certain limitations, and 
securities issued by agencies and instrumentalities sponsored by the U.S. Government that are sponsored 
by the credit of the issuing agencies, such as Freddie Mac and Fannie Mae, are subject to a greater degree 
of credit risk. U.S. government agency securities issued or guaranteed by the credit of the agency may 
still involve a risk of non-payment of principal and/or interest. Credit risk is greater for fixed income 
securities with ratings below investment grade (e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below 
by Moody&#x2019;s). Fixed income securities that are below investment grade involve high credit risk and 
are considered speculative. Below investment grade fixed income securities may also fluctuate in value 
more than higher quality fixed income securities and, during periods of market volatility, may be more 
difficult to sell at the time and price the Portfolio desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_HighYieldRisk2_S000060107Summary67Member"
      id="ixv-72068">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Yield Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities rated below 
investment grade may be subject to greater credit, valuation, price volatility, and liquidity risks than 
investment grade securities. Fixed income securities that are below investment grade involve high credit 
risk and are considered speculative. Below investment grade fixed income securities may also fluctuate 
in value more than higher quality fixed income securities and, during periods of market volatility, may 
be more difficult to sell at the time and price a fund desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_IncomeRisk2_S000060107Summary67Member"
      id="ixv-72073">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_CallRisk2_S000060107Summary67Member"
      id="ixv-72078">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_DerivativesRisk2_S000060107Summary67Member"
      id="ixv-72083">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;used for hedging (attempting to reduce risk by offsetting one investment position 
with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there is no 
guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can also 
reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. In regard to currency 
hedging, it is generally not possible to precisely match the foreign currency exposure of such foreign 
currency forward contracts to the value of the securities involved due to fluctuations in the market 
values of such securities and cash flows into and out of a fund between the date a foreign currency forward 
contract is entered into and the date it expires. The use of derivatives for non-hedging purposes may 
be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund 
will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number 
of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. Additional risks are associated with the use of swaps including counterparty and credit 
risk (the risk that the other party to a swap agreement will not fulfill its contractual obligations, 
whether because of bankruptcy or other default) and liquidity risk (the possible lack of a secondary 
market for the swap agreement). Credit risk increases when a fund is the seller of swaps and counterparty 
risk increases when the fund is a buyer of swaps. In addition, where a fund is the seller of swaps, it 
may be required to liquidate portfolio securities at inopportune times in order to meet payment obligations. 
Swaps may be illiquid or difficult to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_LiquidityRisk2_S000060107Summary67Member"
      id="ixv-72092">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_SecuritiesLendingRisk2_S000060107Summary67Member"
      id="ixv-72097">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_OperationalRisk2_S000060107Summary67Member"
      id="ixv-72101">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_CyberSecurityRisk2_S000060107Summary67Member"
      id="ixv-72106">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275579"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-72116">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes. Actual after-tax returns depend on an investor&#x2019;s tax situation and may 
differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275580">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275581"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275582">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275583">The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275584">In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275585">DFA Global 
Core Plus Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275586">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275587">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275588"
      unitRef="pure">0.0773</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275589">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275590"
      unitRef="pure">-0.0739</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275591">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275592">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275593">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275594"
      unitRef="pure">0.0611</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275595"
      unitRef="pure">-0.0007</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180111_20251231_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="_5402_"
      unitRef="pure">0.0237</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275597">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275598"
      unitRef="pure">0.0432</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275599"
      unitRef="pure">-0.0144</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180111_20251231_AfterTaxesOnDistributionsMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="_5406_"
      unitRef="pure">0.0100</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-275601">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275602"
      unitRef="pure">0.0361</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275603"
      unitRef="pure">-0.0063</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180111_20251231_AfterTaxesOnDistributionsAndSalesMember_C000196746Member_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="_5410_"
      unitRef="pure">0.0123</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3220_S000060107Member_S000060107Summary67Member"
      id="ixv-275605">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000060107Member_S000060107Summary67Member"
      id="ixv-275606">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3221_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275607"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3221_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="ixv-275608"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180111_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3221_S000060107Member_S000060107Summary67Member"
      decimals="INF"
      id="_5415_"
      unitRef="pure">0.0217</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275610"> DFA Investment Grade Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275611"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72449">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Investment Grade Portfolio (the &#x201c;Investment Grade Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to maximize total returns from the universe of eligible investments. 
Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275612"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72456">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275613">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275614">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275615"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275616"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275617"
      unitRef="pure">0.0019</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275618">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72515">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275619"
      unitRef="usd">19</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275620"
      unitRef="usd">19</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275621"
      unitRef="usd">61</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275622"
      unitRef="usd">61</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275623"
      unitRef="usd">107</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275624"
      unitRef="usd">107</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275625"
      unitRef="usd">107</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275626"
      unitRef="usd">243</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275627"
      unitRef="usd">243</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275628"
      unitRef="usd">243</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275629">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72542">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;25%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275630"
      unitRef="pure">0.25</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275631"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72552">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Investment Grade Portfolio seeks to 
achieve its investment objective through exposure to a broad portfolio of investment grade debt securities 
(e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)) of U.S. and non-U.S. corporate 
and government issuers. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that the Portfolio 
will primarily invest in the obligations of issuers that are in developed countries. As a non-fundamental 
policy, under normal circumstances, at least 80% of the Portfolio&#x2019;s net assets will be invested 
in fixed income securities considered to be investment grade quality.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Investment Grade Portfolio will be managed with a view to capturing expected credit premiums and expected 
term premiums. The term &#x201c;expected credit premium&#x201d; means the expected incremental return on 
investment for &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;holding obligations considered to have greater credit risk than direct obligations 
of the U.S. Treasury, and &#x201c;expected term premium&#x201d; means the expected incremental return on 
investment for holding securities having longer-term maturities as compared to shorter-term maturities. 
In managing the Portfolio, the Advisor will increase or decrease investment exposure to intermediate-term 
securities depending on the expected term premium and also increase or decrease investment exposure to 
non-government securities depending on the expected credit premium.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Investment Grade Portfolio 
invests in U.S. and foreign corporate debt securities with an investment grade credit rating. In addition, 
the Portfolio may invest in obligations issued or guaranteed by the U.S. and foreign governments, their 
agencies and instrumentalities, bank obligations, commercial paper, repurchase agreements, money market 
funds, obligations of other domestic and foreign issuers having investment grade ratings, securities 
of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, and 
obligations of supranational organizations. The Portfolio may invest with an emphasis on debt securities 
rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s. The Portfolio will increase or decrease 
investment exposure to lower-rated investment grade securities (i.e., those rated A+ to BBB- by S&amp;amp;P 
or Fitch or A1 to Baa3 by Moody&#x2019;s) depending on the expected credit premium. In addition, the Portfolio 
is authorized to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, and 
obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Investment Grade Portfolio 
primarily invests in securities that mature within twenty years from the date of settlement. Under normal 
circumstances, the Portfolio will generally maintain a weighted average duration of no more than one 
quarter year greater than, and no less than one year below, the weighted average duration of the Bloomberg 
U.S. Aggregate Bond Index, which was approximately 5.98 years as of December 31, 2025. From time to time, 
the Portfolio may deviate from this duration range when the Advisor determines it to be appropriate under 
the circumstances. Duration is a measure of the sensitivity of a security&#x2019;s price to changes in 
interest rates. The longer a security&#x2019;s duration, the more sensitive it will be to changes in interest 
rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Investment Grade Portfolio&#x2019;s investments may include securities denominated 
in foreign currencies. The Portfolio intends to hedge foreign currency exposure to attempt to protect 
against uncertainty in the level of future foreign currency rates. The Portfolio may enter into foreign 
currency forward contracts to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. The Portfolio also may enter into credit default swaps on issuers or indices 
to buy or sell credit protection to hedge its credit exposure; gain market or issuer exposure without 
owning the underlying securities; or increase the Portfolio&#x2019;s total return. The Portfolio may purchase 
or sell futures contracts and options on futures contracts, to hedge its currency exposure or to hedge 
its interest rate exposure or for non-hedging purposes, such as a substitute for direct investment or 
to increase or decrease market exposure based on actual or expected cash inflows to or outflows from 
the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Investment Grade Portfolio may lend its portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_PrincipalRisks2_S000031490Summary68Member"
      id="ixv-72564">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x135x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_RiskLoseMoneyMember_S000031490Summary68Member"
      id="ixv-275632">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_RiskNotInsuredMember_S000031490Summary68Member"
      id="ixv-275633">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_MarketRisk2_S000031490Summary68Member"
      id="ixv-72570">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_InterestRateRisk2_S000031490Summary68Member"
      id="ixv-72575">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_CreditRisk2_S000031490Summary68Member"
      id="ixv-72580">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived 
change in an issuer&#x2019;s financial strength &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;may affect a security&#x2019;s value, and thus, impact the performance of a fund 
holding such securities. Government agency obligations have different levels of credit support and, therefore, 
different degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government 
that are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_IncomeRisk2_S000031490Summary68Member"
      id="ixv-72590">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_CallRisk2_S000031490Summary68Member"
      id="ixv-72595">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_ForeignSecuritiesandCurrenciesRisk2_S000031490Summary68Member"
      id="ixv-72600">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_ForeignGovernmentDebtRisk2_S000031490Summary68Member"
      id="ixv-72606">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_DerivativesRisk2_S000031490Summary68Member"
      id="ixv-72611">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as swaps, futures contracts, and options thereon, and foreign currency 
forward contracts, whose value is derived from that of other assets, rates or indices. Derivatives can 
be used for hedging (attempting to reduce risk by offsetting one investment position with another) or 
non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that 
a hedging strategy will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate 
gains or cause losses if the market moves in a manner different from that anticipated by a fund or if 
the cost of the derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally 
not possible to precisely match the foreign currency exposure of such foreign currency forward contracts 
to the value of the securities involved due to fluctuations in the market values of such securities and 
cash flows into and out of a fund between the date a foreign currency forward contract is entered into 
and the date it expires. The use of derivatives for non-hedging purposes may be considered to carry more 
risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed 
to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_LiquidityRisk2_S000031490Summary68Member"
      id="ixv-72620">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_SecuritiesLendingRisk2_S000031490Summary68Member"
      id="ixv-72625">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_OperationalRisk2_S000031490Summary68Member"
      id="ixv-72629">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_CyberSecurityRisk2_S000031490Summary68Member"
      id="ixv-72634">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275634"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-72644">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275635">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275636"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275637">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275638">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275639">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275640">DFA Investment 
Grade Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275641">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275642">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275643"
      unitRef="pure">0.0635</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275644">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275645"
      unitRef="pure">-0.0635</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275646">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275647">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275648">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275649"
      unitRef="pure">0.0722</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275650"
      unitRef="pure">-0.0012</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275651"
      unitRef="pure">0.0236</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275652">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275653"
      unitRef="pure">0.0558</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275654"
      unitRef="pure">-0.0139</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275655"
      unitRef="pure">0.0121</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      id="ixv-275656">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275657"
      unitRef="pure">0.0426</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275658"
      unitRef="pure">-0.0063</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097895Member_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275659"
      unitRef="pure">0.0132</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3222_S000031490Member_S000031490Summary68Member"
      id="ixv-275660">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000031490Member_S000031490Summary68Member"
      id="ixv-275661">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3223_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275662"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3223_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275663"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3223_S000031490Member_S000031490Summary68Member"
      decimals="INF"
      id="ixv-275664"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275665"> DFA Diversified Fixed Income 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275666"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-72949">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Diversified Fixed Income Portfolio (the &#x201c;Diversified Fixed Income 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide a market rate of return for a fixed income 
portfolio with low relative volatility of returns.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275667"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-72956">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275668">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275669">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275670"
      unitRef="pure">0.0012</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275671"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275672"
      unitRef="pure">0.0011</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275673"
      unitRef="pure">0.0025</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5515_"
      unitRef="pure">-0.0010</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275675"
      unitRef="pure">0.0015</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275676">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-73044">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275677"
      unitRef="usd">15</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275678"
      unitRef="usd">15</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275679"
      unitRef="usd">70</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275680"
      unitRef="usd">70</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275681"
      unitRef="usd">131</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275682"
      unitRef="usd">131</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275683"
      unitRef="usd">131</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275684"
      unitRef="usd">308</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275685"
      unitRef="usd">308</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275686"
      unitRef="usd">308</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275687">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-73071">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;31%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275688"
      unitRef="pure">0.31</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275689"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-73084">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Diversified Fixed Income Portfolio seeks its investment objective by investing directly or through other 
funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) (the &#x201c;Underlying Funds&#x201d;) 
in a universe of U.S. and foreign debt securities, including inflation-protected securities. The Portfolio 
and/or its Underlying Funds invest in obligations issued or guaranteed by the U.S. and foreign governments, 
their agencies and instrumentalities, corporate debt obligations, bank obligations, commercial paper, 
repurchase agreements, money market funds, securities of domestic or foreign issuers denominated in U.S. 
dollars but not trading in the United States, and obligations of supranational organizations. The inflation-protected 
securities in which the Portfolio and/or its Underlying Funds invest may include Treasury Inflation-Protected 
Securities. As of the date of this Prospectus, the Portfolio invests its assets in the DFA Two-Year Global 
Fixed Income Portfolio and DFA Intermediate Government Fixed Income Portfolio and/or other Underlying 
Funds, but the Portfolio also invests a substantial portion of its assets directly.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depending 
on the credit and term spreads in the current yield curves, the Diversified Fixed Income Portfolio will 
adjust its investment allocations to credit and maturity, within the eligible universe of investments 
held directly or through Underlying Funds. The fixed income securities in which the Portfolio invests 
will be considered investment grade at the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global 
Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s 
Ratings (&#x201c;Moody&#x2019;s&#x201d;). Generally, the Portfolio will purchase debt securities that mature 
within twenty years from the date of settlement. The Portfolio will ordinarily have a weighted average 
effective maturity, based on market values, between two and seven years. The effective maturity adjusts 
the stated final maturity of a fixed income security for an actual or expected event such as a call, 
put, tender, mandatory early redemption, pre-refunding, coupon or interest rate reset, or other similar 
event.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the Diversified Fixed 
Income Portfolio will invest directly, or indirectly through its investment in the Underlying Funds, 
at least 80% of its net assets in fixed income securities. In addition, the Portfolio and each Underlying 
Fund are authorized to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, 
and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because many of the Diversified 
Fixed Income Portfolio&#x2019;s and certain Underlying Funds&#x2019; investments may be denominated in 
foreign currencies, the Portfolio and such Underlying Funds may also enter into foreign currency forward 
contracts to attempt to protect against uncertainty in the level of future foreign currency rates, to 
hedge against fluctuations in currency exchange rates or to transfer balances from one currency to another. 
The Portfolio and certain Underlying Funds may also purchase or sell futures contracts and options on 
futures contracts for securities and indices, to hedge their currency exposure or to increase or decrease 
market exposure based on actual or expected cash inflows to or outflows from the Portfolio or Underlying 
Fund.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Diversified Fixed Income Portfolio and the Underlying Funds may lend their 
portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_PrincipalRisks2_S000054156Summary69Member"
      id="ixv-73090">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x145x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_RiskLoseMoneyMember_S000054156Summary69Member"
      id="ixv-275690">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_RiskNotInsuredMember_S000054156Summary69Member"
      id="ixv-275691">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_FundofFundsRisk2_S000054156Summary69Member"
      id="ixv-73096">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_MarketRisk2_S000054156Summary69Member"
      id="ixv-73105">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_ForeignSecuritiesandCurrenciesRisk2_S000054156Summary69Member"
      id="ixv-73110">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because 
of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities 
markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility 
that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will 
convert, or be forced to convert, its currency to another currency, changing its value against the U.S. 
dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_ForeignGovernmentDebtRisk2_S000054156Summary69Member"
      id="ixv-73116">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_InterestRateRisk2_S000054156Summary69Member"
      id="ixv-73121">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_LiquidityRisk2_S000054156Summary69Member"
      id="ixv-73126">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000054156Summary69Member"
      id="ixv-73131">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_Inflation-ProtectedSecuritiesTaxRisk2_S000054156Summary69Member"
      id="ixv-73136">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_RisksofInvestingforInflationProtection2_S000054156Summary69Member"
      id="ixv-73144">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected security 
are adjusted periodically for changes in inflation, the income distributed by a fund investing in such 
securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least the original 
face value of any inflation-protected securities the Treasury issues, other issuers may not offer the 
same guarantee. Inflation-protected securities are not protected against deflation. As a result, in a 
period of deflation, the principal and income of inflation-protected securities held by a fund will decline 
and the fund may suffer a loss during such periods. While inflation-protected securities are expected 
to be protected from long-term inflationary trends, short-term increases in inflation may lead to a decline 
in the value of a fund holding such securities. For example, if interest rates rise due to reasons other 
than inflation, a fund&#x2019;s investment in these securities may not be protected to the extent that 
the increase is not reflected in the securities&#x2019; inflation measures. In addition, positive adjustments 
to principal generally will result in taxable income to a fund at the time of such adjustments (which 
generally would be distributed by the fund as part of its taxable dividends), even though the principal 
amount is not paid until maturity. The current market value of inflation-protected securities is not 
guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_CreditRisk2_S000054156Summary69Member"
      id="ixv-73149">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived 
change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, impact 
the performance of a fund holding such securities. Government agency obligations have different levels 
of credit support and, therefore, different degrees of credit risk. Securities issued by agencies and 
instrumentalities of the U.S. Government that are supported by the full faith and credit of the United 
States, such as the Federal Housing Administration and Ginnie Mae, present little credit risk. Other 
securities issued by agencies and instrumentalities sponsored by the U.S. Government, that are supported 
only by the issuer&#x2019;s right to borrow from the U.S. Treasury, subject to certain limitations, and 
securities issued by agencies and instrumentalities sponsored by the U.S. Government that are sponsored 
by the credit of the issuing agencies, such as Freddie Mac and Fannie Mae, are subject to a greater degree 
of credit risk. U.S. government agency securities issued or guaranteed by the credit of the agency may 
still involve a risk of non-payment of principal and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_IncomeRisk2_S000054156Summary69Member"
      id="ixv-73154">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_CallRisk2_S000054156Summary69Member"
      id="ixv-73159">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_DerivativesRisk2_S000054156Summary69Member"
      id="ixv-73164">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_SecuritiesLendingRisk2_S000054156Summary69Member"
      id="ixv-73168">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_OperationalRisk2_S000054156Summary69Member"
      id="ixv-73172">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside 
a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor 
seek to reduce these operational risks through controls and procedures. However, measures that seek to 
reduce these operational risks through controls and procedures may not address every possible risk and 
may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_CyberSecurityRisk2_S000054156Summary69Member"
      id="ixv-73182">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275692"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-73192">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275693">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275694"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275695">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275696">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275697">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275698">DFA 
Diversified Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275699">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275700">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275701"
      unitRef="pure">0.0423</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275702">2020-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275703"
      unitRef="pure">-0.0359</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275704">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275705">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275706">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275707"
      unitRef="pure">0.0634</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275708"
      unitRef="pure">0.0103</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160810_20251231_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5584_"
      unitRef="pure">0.0177</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275710">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275711"
      unitRef="pure">0.0477</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275712"
      unitRef="pure">-0.0018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160810_20251231_AfterTaxesOnDistributionsMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5588_"
      unitRef="pure">0.0076</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      id="ixv-275714">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275715"
      unitRef="pure">0.0374</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275716"
      unitRef="pure">0.0027</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160810_20251231_AfterTaxesOnDistributionsAndSalesMember_C000170210Member_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5592_"
      unitRef="pure">0.0092</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSGovernmentBondIndexIntermediate3224_S000054156Member_S000054156Summary69Member"
      id="ixv-275718">Bloomberg U.S. Government Bond Index 
Intermediate</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000054156Member_S000054156Summary69Member"
      id="ixv-275719">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSGovernmentBondIndexIntermediate3225_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275720"
      unitRef="pure">0.0650</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSGovernmentBondIndexIntermediate3225_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275721"
      unitRef="pure">0.0064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160810_20251231_BloombergUSGovernmentBondIndexIntermediate3225_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5597_"
      unitRef="pure">0.0150</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3226_S000054156Member_S000054156Summary69Member"
      id="ixv-275723">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3227_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275724"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3227_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="ixv-275725"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160810_20251231_BloombergUSAggregateBondIndex3227_S000054156Member_S000054156Summary69Member"
      decimals="INF"
      id="_5602_"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275727"> DFA LTIP Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275728"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73556">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA LTIP Portfolio (the &#x201c;Portfolio&#x201d;) is to seek to provide total 
return consistent with inflation protected long-term instruments. Total return is comprised of income 
and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275729"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73563">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275730">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275731">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275732"
      unitRef="pure">0.0010</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275733"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275734"
      unitRef="pure">0.0012</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275735">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73622">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275736"
      unitRef="usd">12</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275737"
      unitRef="usd">12</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275738"
      unitRef="usd">39</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275739"
      unitRef="usd">39</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275740"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275741"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275742"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275743"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275744"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275745"
      unitRef="usd">154</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275746">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73649">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;15%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275747"
      unitRef="pure">0.15</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275748"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73659">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA LTIP Portfolio seeks its investment 
objective by generally investing in a universe of long-term fixed income securities structured to provide 
protection against inflation. The Portfolio may invest in inflation-protected securities issued by the 
U.S. Government and its agencies and instrumentalities. The Portfolio also may invest in inflation-protected 
securities of other investment grade issuers (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)) 
including foreign governments and U.S. and non-U.S. corporations. The fixed income securities in which 
the Portfolio invests are considered investment grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities (also known as inflation-indexed securities) are securities whose principal and/or interest 
payments are adjusted for inflation, unlike conventional debt securities that make fixed principal and 
interest &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;payments. Inflation-protected securities include Treasury Inflation-Protected 
Securities (&#x201c;TIPS&#x201d;), which are securities issued by the U.S. Treasury. The principal value 
of TIPS is adjusted for inflation (payable at maturity) and the semi-annual interest payments by TIPS 
equal a fixed percentage of the inflation-adjusted principal amount. These inflation adjustments are 
based upon the Consumer Price Index for Urban Consumers (CPI-U). The original principal value of TIPS 
is guaranteed. At maturity, TIPS are redeemed at the greater of their inflation-adjusted principal or 
par amount at original issue. Other types of inflation-protected securities may use other methods to 
adjust for inflation and other measures of inflation. In addition, inflation-protected securities issued 
by entities other than the U.S. Treasury may not provide a guarantee of principal value at maturity.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, 
the DFA LTIP Portfolio will purchase long-term fixed income securities with maturities greater than ten 
years from the date of settlement, although at times, the Portfolio may purchase securities with shorter 
maturities. The Portfolio ordinarily will have a weighted average effective maturity, based upon market 
values, of greater than ten years. The effective maturity adjusts the stated final maturity of a fixed 
income security for an actual or expected event such as a call, put, tender, mandatory early redemption, 
pre-refunding, coupon or interest rate reset, or other similar event.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA LTIP Portfolio also may invest in securities issued by the U.S. Government and its agencies and instrumentalities 
and other investment grade issuers that do not provide inflation protection while attempting to protect 
for inflation by engaging in swaps, futures or other derivatives to hedge against the inflation risk 
associated with such securities. The Portfolio may also invest in money market funds. Because many of 
the LTIP Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may enter 
into foreign currency forward contracts to attempt to protect against uncertainty in the level of future 
foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. The Portfolio may purchase or sell futures contracts and options on futures 
contracts, to hedge its interest rate exposure or for non-hedging purposes, such as a substitute for 
direct investment or to increase or decrease market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, at 
least 80% of the DFA LTIP Portfolio&#x2019;s net assets will be invested in fixed income securities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA LTIP Portfolio is authorized to invest more than 25% of its total assets in Treasury bonds, bills 
and notes and obligations of U.S. government agencies and instrumentalities. The Portfolio will not shift 
the maturity of its investments in anticipation of interest rate movements.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA LTIP Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_PrincipalRisks2_S000033394Summary70Member"
      id="ixv-73672">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x155x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_RiskLoseMoneyMember_S000033394Summary70Member"
      id="ixv-275749">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_RiskNotInsuredMember_S000033394Summary70Member"
      id="ixv-275750">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_MarketRisk2_S000033394Summary70Member"
      id="ixv-73678">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_InterestRateRisk2_S000033394Summary70Member"
      id="ixv-73683">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000033394Summary70Member"
      id="ixv-73688">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;represent nominal (stated) interest rates reduced by the expected impact of inflation. 
Generally, the value of an inflation-protected security will fall when real interest rates rise and will 
rise when real interest rates fall.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_Inflation-ProtectedSecuritiesTaxRisk2_S000033394Summary70Member"
      id="ixv-73698">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary 
income distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified 
as a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_CreditRisk2_S000033394Summary70Member"
      id="ixv-73703">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_RisksofInvestingforInflationProtection2_S000033394Summary70Member"
      id="ixv-73708">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation 
Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected 
security are adjusted periodically for changes in inflation, the income distributed by a fund investing 
in such securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least 
the original face value of any inflation-protected securities the Treasury issues, other issuers may 
not offer the same guarantee. Inflation-protected securities are not protected against deflation. As 
a result, in a period of deflation, the principal and income of inflation-protected securities held by 
a fund will decline and the fund may suffer a loss during such periods. While inflation-protected securities 
are expected to be protected from long-term inflationary trends, short-term increases in inflation may 
lead to a decline in the value of a fund holding such securities. For example, if interest rates rise 
due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_IncomeRisk2_S000033394Summary70Member"
      id="ixv-73713">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_ForeignSecuritiesandCurrenciesRisk2_S000033394Summary70Member"
      id="ixv-73718">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_ForeignGovernmentDebtRisk2_S000033394Summary70Member"
      id="ixv-73724">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_DerivativesRisk2_S000033394Summary70Member"
      id="ixv-73734">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as swaps, futures contracts, and options thereon, and foreign currency 
forward contracts, whose value is derived from that of other assets, rates or indices. Derivatives can 
be used for hedging (attempting to reduce risk by offsetting one investment position with another) or 
non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that 
a hedging strategy will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate 
gains or cause losses if the market moves in a manner different from that anticipated by a fund or if 
the cost of the derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally 
not possible to precisely match the foreign currency exposure of such foreign currency forward contracts 
to the value of the securities involved due to fluctuations in the market values of such securities and 
cash flows into and out of a fund between the date a foreign currency forward contract is entered into 
and the date it expires. The use of derivatives for non-hedging purposes may be considered to carry more 
risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed 
to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_SecuritiesLendingRisk2_S000033394Summary70Member"
      id="ixv-73738">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_LiquidityRisk2_S000033394Summary70Member"
      id="ixv-73742">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&#160;&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_OperationalRisk2_S000033394Summary70Member"
      id="ixv-73747">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_CyberSecurityRisk2_S000033394Summary70Member"
      id="ixv-73752">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275751"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-73765">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275752">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275753"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275754">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275755">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275756">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275757">DFA LTIP 
Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275758">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275759">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275760"
      unitRef="pure">0.1174</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275761">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275762"
      unitRef="pure">-0.2234</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275763">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275764">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275765">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275766"
      unitRef="pure">0.0154</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275767"
      unitRef="pure">-0.0964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275768"
      unitRef="pure">0.0011</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275769">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275770"
      unitRef="pure">-0.0109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275771"
      unitRef="pure">-0.1198</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275772"
      unitRef="pure">-0.0182</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      id="ixv-275773">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275774"
      unitRef="pure">0.0092</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275775"
      unitRef="pure">-0.0759</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000102640Member_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275776"
      unitRef="pure">-0.0041</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSEUSInflation-LinkedSecuritiesIndex20Years3228_S000033394Member_S000033394Summary70Member"
      id="ixv-275777">FTSE U.S. Inflation-Linked Securities 
Index, 20+ Years</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000033394Member_S000033394Summary70Member"
      id="ixv-275778">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSEUSInflation-LinkedSecuritiesIndex20Years3229_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275779"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSEUSInflation-LinkedSecuritiesIndex20Years3229_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275780"
      unitRef="pure">-0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSEUSInflation-LinkedSecuritiesIndex20Years3229_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275781"
      unitRef="pure">0.0118</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3230_S000033394Member_S000033394Summary70Member"
      id="ixv-275782">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3231_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275783"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3231_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275784"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3231_S000033394Member_S000033394Summary70Member"
      decimals="INF"
      id="ixv-275785"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275786"> DFA Inflation-Protected Securities 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275787"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74100">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Inflation-Protected Securities Portfolio (the &#x201c;Inflation-Protected 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide inflation protection and earn current 
income consistent with inflation-protected securities.&lt;/span&gt;&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275788"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74108">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275789">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275790">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275791"
      unitRef="pure">0.0009</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275792"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275793"
      unitRef="pure">0.0011</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275794">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74167">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275795"
      unitRef="usd">11</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275796"
      unitRef="usd">11</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275797"
      unitRef="usd">35</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275798"
      unitRef="usd">35</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275799"
      unitRef="usd">62</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275800"
      unitRef="usd">62</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275801"
      unitRef="usd">62</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275802"
      unitRef="usd">141</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275803"
      unitRef="usd">141</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275804"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275805">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74194">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;16%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275806"
      unitRef="pure">0.16</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275807"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74204">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Inflation-Protected Portfolio seeks its investment objective 
by investing in a universe of inflation-protected securities that are structured to provide returns linked 
to the rate of inflation over the long-term. The Portfolio ordinarily invests in inflation-protected 
securities issued by the U.S. Government and its agencies and instrumentalities and the credit quality 
of such inflation-protected securities will be that of such applicable U.S. government, agency or instrumentality 
issuer.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the Inflation-Protected 
Portfolio will invest at least 80% of its net assets in inflation-protected securities. Inflation-protected 
securities (also known as inflation-indexed securities) are securities whose principal and/or interest 
payments are adjusted for inflation, unlike conventional debt &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;securities that make fixed principal and interest payments. Inflation-protected 
securities include Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;), which are securities 
issued by the U.S. Treasury. The principal value of TIPS is adjusted for inflation (payable at maturity) 
and the semi-annual interest payments by TIPS equal a fixed percentage of the inflation-adjusted principal 
amount. These inflation adjustments are based upon the Consumer Price Index for Urban Consumers (CPI-U). 
The original principal value of TIPS is guaranteed. At maturity, TIPS are redeemed at the greater of 
their inflation-adjusted principal or par amount at original issue. Other types of inflation-protected 
securities may use other methods to adjust for inflation and other measures of inflation. In addition, 
inflation-protected securities issued by entities other than the U.S. Treasury may not provide a guarantee 
of principal value at maturity.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the Inflation-Protected Portfolio 
will purchase inflation-protected securities with maturities between five and twenty years from the date 
of settlement, although at times, the Portfolio may purchase securities outside of this range. Under 
normal circumstances, when determining its duration, the Portfolio will consider a weighted average duration 
similar to the Bloomberg U.S. TIPS Index, which was approximately 6.50 years as of December 31, 2025. 
Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The 
longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Inflation-Protected Portfolio is authorized to invest more than 25% of its total assets in U.S. Treasury 
bonds, bills and notes and obligations of U.S. government agencies and instrumentalities. The Portfolio 
may also invest in money market funds. The Portfolio will not shift the maturity of its investments in 
anticipation of interest rate movements.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Inflation-Protected Portfolio may 
purchase or sell futures contracts and options on futures contracts, to hedge its interest rate exposure 
or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease market 
exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Inflation-Protected Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_PrincipalRisks2_S000013345Summary71Member"
      id="ixv-74216">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x165x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_RiskLoseMoneyMember_S000013345Summary71Member"
      id="ixv-275808">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_RiskNotInsuredMember_S000013345Summary71Member"
      id="ixv-275809">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_MarketRisk2_S000013345Summary71Member"
      id="ixv-74222">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_InterestRateRisk2_S000013345Summary71Member"
      id="ixv-74227">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_Inflation-ProtectedSecuritiesTaxRisk2_S000013345Summary71Member"
      id="ixv-74232">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000013345Summary71Member"
      id="ixv-74237">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;of inflation-protected securities are anticipated to change in response to changes 
in &#x201c;real&#x201d; interest rates, which represent nominal (stated) interest rates reduced by the 
expected impact of inflation. Generally, the value of an inflation-protected security will fall when 
real interest rates rise and will rise when real interest rates fall.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_CreditRisk2_S000013345Summary71Member"
      id="ixv-74247">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may 
be unable to make interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s 
credit rating or a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s 
value, and thus, impact the performance of a fund holding such securities. Government agency obligations 
have different levels of credit support and, therefore, different degrees of credit risk. Securities 
issued by agencies and instrumentalities of the U.S. Government that are supported by the full faith 
and credit of the United States, such as the Federal Housing Administration and Ginnie Mae, present little 
credit risk. Other securities issued by agencies and instrumentalities sponsored by the U.S. Government, 
that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, subject to certain 
limitations, and securities issued by agencies and instrumentalities sponsored by the U.S. Government 
that are sponsored by the credit of the issuing agencies, such as Freddie Mac and Fannie Mae, are subject 
to a greater degree of credit risk. U.S. government agency securities issued or guaranteed by the credit 
of the agency may still involve a risk of non-payment of principal and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_RisksofInvestingforInflationProtection2_S000013345Summary71Member"
      id="ixv-74252">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_IncomeRisk2_S000013345Summary71Member"
      id="ixv-74257">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_LiquidityRisk2_S000013345Summary71Member"
      id="ixv-74262">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_DerivativesRisk2_S000013345Summary71Member"
      id="ixv-74267">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. 
Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will 
work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses 
if the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_SecuritiesLendingRisk2_S000013345Summary71Member"
      id="ixv-74271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;securities. A fund could also lose money if it does not recover the securities 
and/or the value of the collateral falls, including the value of investments made with cash collateral. 
Securities lending also may have certain adverse tax consequences.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_OperationalRisk2_S000013345Summary71Member"
      id="ixv-74280">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_CyberSecurityRisk2_S000013345Summary71Member"
      id="ixv-74285">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275810"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-74295">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275811">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275812"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275813">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275814">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275815">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275816">DFA 
Inflation-Protected Securities Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275817">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275818">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275819"
      unitRef="pure">0.0501</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275820">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275821"
      unitRef="pure">-0.0652</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275822">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275823">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275824">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275825"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275826"
      unitRef="pure">0.0101</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275827"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275828">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275829"
      unitRef="pure">0.0548</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275830"
      unitRef="pure">-0.0082</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275831"
      unitRef="pure">0.0174</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      id="ixv-275832">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275833"
      unitRef="pure">0.0416</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275834"
      unitRef="pure">-0.0002</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000036041Member_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275835"
      unitRef="pure">0.0181</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3232_S000013345Member_S000013345Summary71Member"
      id="ixv-275836">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000013345Member_S000013345Summary71Member"
      id="ixv-275837">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3233_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275838"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3233_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275839"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3233_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275840"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3234_S000013345Member_S000013345Summary71Member"
      id="ixv-275841">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3235_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275842"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3235_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275843"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3235_S000013345Member_S000013345Summary71Member"
      decimals="INF"
      id="ixv-275844"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275845"> DFA Short-Duration Real Return 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275846"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74630">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Short-Duration Real Return Portfolio (the &#x201c;Short-Duration Real 
Return Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek inflation protection and maximize 
total returns.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275847"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74637">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275848">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275849">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275850"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275851"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275852"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275853">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74696">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275854"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275855"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275856"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275857"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275858"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275859"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275860"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275861"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275862"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275863"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275864">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74723">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;36%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275865"
      unitRef="pure">0.36</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275866"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74733">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Duration Real Return Portfolio 
pursues its investment objective by investing in a combination of debt securities, including inflation-protected 
securities, and derivative instruments. The Portfolio will maintain a weighted average duration of three 
years or less. In making purchase decisions, if the expected term premium is greater for longer-term 
securities in the eligible maturity range, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) will 
focus investment in the longer-term area, otherwise, the Portfolio will focus investment in the shorter-term 
area of the eligible maturity range. The fixed income securities in which the Portfolio invests are considered 
investment grade at the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
The Portfolio generally invests with an emphasis on debt securities rated A+ to BBB- by S&amp;amp;P or Fitch 
or A1 to Baa3 by Moody&#x2019;s. The Portfolio will increase or decrease investment exposure to lower-rated 
investment grade securities (i.e., those rated A+ to BBB- by S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s) 
&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;depending on the expected credit premium. Duration is a measure of the sensitivity 
of a security&#x2019;s price to changes in interest rates. The longer a security&#x2019;s duration, the 
more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Duration Real 
Return Portfolio may invest in inflation protected securities, obligations issued or guaranteed by the 
U.S. and foreign governments, their agencies and instrumentalities, corporate debt obligations, bank 
obligations, commercial paper, repurchase agreements, money market funds, securities of domestic or foreign 
issuers denominated in U.S. dollars but not trading in the United States, and obligations of supranational 
organizations. The Advisor expects that the Portfolio will primarily invest in the obligations of issuers 
that are in developed countries. In addition, the Portfolio is authorized to invest more than 25% of 
its total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Short-Duration Real Return Portfolio may enter into swaps, such as inflation swaps, to seek inflation 
protection. The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell 
credit protection to hedge its credit exposure; gain market or issuer exposure without owning the underlying 
securities; or increase the Portfolio&#x2019;s total return. The Portfolio also may purchase or sell futures 
contracts and options on futures contracts, to hedge its interest rate or currency exposure or for non-hedging 
purposes, such as a substitute for direct investment or to increase or decrease market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio. The Portfolio may use foreign currency 
forward contracts to attempt to protect against uncertainty in the level of future foreign currency rates, 
to hedge against fluctuations in currency exchange rates or to transfer balances from one currency to 
another.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Duration Real Return Portfolio may lend its portfolio securities to 
generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_PrincipalRisks2_S000042173Summary72Member"
      id="ixv-74743">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x175x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_RiskLoseMoneyMember_S000042173Summary72Member"
      id="ixv-275867">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_RiskNotInsuredMember_S000042173Summary72Member"
      id="ixv-275868">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_MarketRisk2_S000042173Summary72Member"
      id="ixv-74749">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_ForeignSecuritiesandCurrenciesRisk2_S000042173Summary72Member"
      id="ixv-74754">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_ForeignGovernmentDebtRisk2_S000042173Summary72Member"
      id="ixv-74760">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_InterestRateRisk2_S000042173Summary72Member"
      id="ixv-74768">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000042173Summary72Member"
      id="ixv-74773">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_Inflation-ProtectedSecuritiesTaxRisk2_S000042173Summary72Member"
      id="ixv-74778">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_CreditRisk2_S000042173Summary72Member"
      id="ixv-74783">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_RisksofInvestingforInflationProtection2_S000042173Summary72Member"
      id="ixv-74788">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation 
Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected 
security are adjusted periodically for changes in inflation, the income distributed by a fund investing 
in such securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least 
the original face value of any inflation-protected securities the Treasury issues, other issuers may 
not offer the same guarantee. Inflation-protected securities are not protected against deflation. As 
a result, in a period of deflation, the principal and income of inflation-protected securities held by 
a fund will decline and the fund may suffer a loss during such periods. While inflation-protected securities 
are expected to be protected from long-term inflationary trends, short-term increases in inflation may 
lead to a decline in the value of a fund holding such securities. For example, if interest rates rise 
due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_IncomeRisk2_S000042173Summary72Member"
      id="ixv-74793">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_CallRisk2_S000042173Summary72Member"
      id="ixv-74798">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_DerivativesRisk2_S000042173Summary72Member"
      id="ixv-74807">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as swaps, futures contracts, and options thereon, and foreign currency forward 
contracts, whose value is derived from that of other assets, rates or indices. Derivatives can be used 
for hedging (attempting to reduce risk by offsetting one investment position with another) or non-hedging 
purposes. Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy 
will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause 
losses if the market moves in a manner different from that anticipated by a fund or if the cost of the 
derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally not possible 
to precisely match the foreign currency exposure of such foreign currency forward contracts to the value 
of the securities involved due to fluctuations in the market values of such securities and cash flows 
into and out of a fund between the date a foreign currency forward contract is entered into and the date 
it expires. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with 
respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying 
asset, rate or index, and a fund could lose more than the principal amount invested. Additional risks 
are associated with the use of swaps including counterparty and credit risk (the risk that the other 
party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_LiquidityRisk2_S000042173Summary72Member"
      id="ixv-74811">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_SecuritiesLendingRisk2_S000042173Summary72Member"
      id="ixv-74816">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_OperationalRisk2_S000042173Summary72Member"
      id="ixv-74820">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_CyberSecurityRisk2_S000042173Summary72Member"
      id="ixv-74825">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275869"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-74835">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;after taxes) is not an indication of future results. Updated performance information 
for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275870">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275871"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275873">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275874">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275875">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275876">DFA Short-Duration 
Real Return Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275877">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275878">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275879"
      unitRef="pure">0.0357</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275880">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275881"
      unitRef="pure">-0.0374</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275882">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275883">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275884">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275885"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275886"
      unitRef="pure">0.0384</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275887"
      unitRef="pure">0.0330</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275888">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275889"
      unitRef="pure">0.0304</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275890"
      unitRef="pure">0.0262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275891"
      unitRef="pure">0.0230</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      id="ixv-275892">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275893"
      unitRef="pure">0.0296</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275894"
      unitRef="pure">0.0244</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000130944Member_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275895"
      unitRef="pure">0.0212</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPS1-5YearsIndex3236_S000042173Member_S000042173Summary72Member"
      id="ixv-275896">Bloomberg U.S. TIPS 1-5 Years Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000042173Member_S000042173Summary72Member"
      id="ixv-275897">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPS1-5YearsIndex3237_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275898"
      unitRef="pure">0.0655</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPS1-5YearsIndex3237_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275899"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPS1-5YearsIndex3237_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275900"
      unitRef="pure">0.0316</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3238_S000042173Member_S000042173Summary72Member"
      id="ixv-275901">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3239_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275902"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3239_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275903"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3239_S000042173Member_S000042173Summary72Member"
      decimals="INF"
      id="ixv-275904"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275905"> DFA Global Core Plus Real 
Return Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275906"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75180">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Global Core Plus Real Return Portfolio (the &#x201c;Global Core Plus Real 
Return Portfolio&#x201d; or &#x201c;Portfolio&#x201d;) is to seek inflation protection and maximize total 
returns.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275907"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75187">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275908">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275909">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275910"
      unitRef="pure">0.0021</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275911"
      unitRef="pure">0.0009</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275912"
      unitRef="pure">0.0030</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="_5897_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275914"
      unitRef="pure">0.0029</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275915">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75270">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275916"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275917"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275918"
      unitRef="usd">95</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275919"
      unitRef="usd">95</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275920"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275921"
      unitRef="usd">168</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275922"
      unitRef="usd">168</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275923"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275924"
      unitRef="usd">380</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275925"
      unitRef="usd">380</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275926">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75297">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;59%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275927"
      unitRef="pure">0.59</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275928"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75310">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Core Plus Real Return Portfolio will pursue its investment objective by investing in a universe 
of U.S. and foreign debt securities, including inflation-protected securities, and derivative instruments. 
The Portfolio primarily invests in securities that mature within twenty years from the date of settlement, 
but may, as in the case of mortgage-backed securities, invest in securities with longer maturities. Under 
normal circumstances, the Portfolio will generally maintain a weighted average duration between three 
and ten years. Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest 
rates. The longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates. 
 Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that the Portfolio will primarily invest 
in the obligations of issuers that are in developed countries.  However, the Advisor may invest in issuers 
located in other countries as well, which may include emerging markets. The Advisor selects the Portfolio's 
foreign country and currency compositions based on an evaluation of various factors, including, but not 
limited to, relative interest rates and exchange rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;In making purchase decisions, 
if the expected term premium is greater for longer-term securities in the eligible maturity range, the 
Advisor will focus investments in the longer-term area, otherwise, the Global Core Plus Real Return Portfolio 
will focus investments in the shorter-term area of the eligible maturity range.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Core Plus Real Return Portfolio may invest in fixed income securities considered investment grade 
at the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or 
Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
The Portfolio may invest with an emphasis on fixed income securities rated A+ to BBB- by S&amp;amp;P or Fitch 
or A1 to Baa3 by Moody&#x2019;s. In addition, the Portfolio may invest in fixed income securities rated 
below investment grade (also known as &#x201c;junk&#x201d; bonds). The Portfolio will be managed with a 
view to capturing expected credit premiums and expected term premiums. The term &#x201c;expected credit 
premium&#x201d; means the expected incremental return on investment for holding obligations considered 
to have greater credit risk than direct obligations of the U.S. Treasury, and &#x201c;expected term premium&#x201d; 
means the expected incremental return on investment for holding securities having longer-term maturities 
as compared to shorter-term maturities. In managing the Portfolio, the Advisor will increase or decrease 
investment exposure to intermediate-term securities depending on the expected term premium and also increase 
or decrease investment exposure to lower-rated debt securities depending on the expected credit premium. 
&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Core Plus Real Return Portfolio may invest in inflation protected securities, 
obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
including mortgage-backed securities, corporate debt obligations, bank obligations, commercial paper, 
repurchase agreements, money market funds, securities of domestic or foreign issuers denominated in U.S. 
dollars but not trading in the United States, and obligations of supranational organizations. The Portfolio 
may purchase or sell mortgage-backed securities on a delayed delivery or forward commitment basis through 
the &#x201c;to-be-announced&#x201d; (TBA) market. In addition, the Portfolio is authorized to invest more 
than 25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies 
and instrumentalities. The Advisor expects that the Portfolio will primarily invest in the obligations 
of issuers that are in developed countries. The Portfolio intends to invest its assets to gain exposure 
to at least three different countries, including the United States. As of the date of the Prospectus, 
the Portfolio invests approximately 47% of its net assets in U.S. issuers. This percentage will change 
due to market conditions. An issuer may be considered to be of a country if it is organized under the 
laws of, maintains its principal place of business in, has at least 50% of its assets or derives at least 
50% of its operating income in, or is a government, government agency, instrumentality or central bank 
of, that country.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Core Plus Real Return Portfolio may enter into 
swaps, such as inflation swaps, to seek inflation protection.  Because many of the Global Core Plus Real 
Return Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may enter 
into foreign currency forward contracts to attempt to protect against uncertainty in the level of future 
foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another.  The Portfolio also may enter into credit default swaps on issuers or indices 
to buy or sell credit protection to hedge its credit exposure; gain market or issuer exposure without 
owning the underlying securities; or increase the Portfolio&#x2019;s total return.  The Portfolio may 
purchase or sell futures contracts and options on futures contracts, to hedge its interest rate or currency 
exposure or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease 
market exposure, including adjustments based on actual or expected cash inflows to or outflows from the 
Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Core Plus Real Return Portfolio may lend its portfolio securities to 
generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_PrincipalRisks2_S000071470Summary73Member"
      id="ixv-75320">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x185x7"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_RiskLoseMoneyMember_S000071470Summary73Member"
      id="ixv-275929">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_RiskNotInsuredMember_S000071470Summary73Member"
      id="ixv-275930">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_MarketRisk2_S000071470Summary73Member"
      id="ixv-75326">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_ForeignSecuritiesandCurrenciesRisk2_S000071470Summary73Member"
      id="ixv-75331">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because 
of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities 
markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility 
that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will 
convert, or be forced to convert, its currency to another currency, changing its value against the U.S. 
dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_ForeignGovernmentDebtRisk2_S000071470Summary73Member"
      id="ixv-75337">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_EmergingMarketsRisk2_S000071470Summary73Member"
      id="ixv-75342">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries may be subject 
to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous 
emerging market countries have a history of, and continue to experience serious, and potentially continuing, 
economic and political problems. Stock markets in many emerging market countries are relatively small, 
expensive to trade in and generally have higher risks than those in developed markets. Securities in 
emerging markets also may be less liquid than those in developed markets and foreigners are often limited 
in their ability to invest in, and withdraw assets from, these markets. Additional restrictions may be 
imposed under other conditions. Frontier market countries generally have smaller economies or less developed 
capital markets and, as a result, the risks of investing in emerging market countries are magnified in 
frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_ChinaInvestmentsRisk2_S000071470Summary73Member"
      id="ixv-75349">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, 
Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly interconnected and interdependent, with 
relationships built on trade, finance, culture, and politics. Despite prior economic and trade reforms 
and the prior expansion of private ownership of companies in certain sectors, the Chinese government 
still exercises substantial influence over many aspects of the private sector and may own or control 
many companies, including by embedding Chinese Communist Party or People&#x2019;s Armed Forces Department 
personnel in Chinese companies. In addition, the Chinese government continues to maintain a major role 
in economic policy making and may alter or discontinue economic or trade reforms at any time. Investing 
in China involves risks of losses due to expropriation, nationalization, confiscation of assets and property, 
and the imposition of restrictions on foreign investments and on repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments 
in China, Hong Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating 
relations with the U.S. as economic and strategic competition between the U.S. and China intensifies, 
which could result in further tariffs, trade restrictions, sanctions, or other actions that adversely 
impact the value of such &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_Mortgage-BackedSecuritiesRisk2_S000071470Summary73Member"
      id="ixv-75360">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Mortgage-Backed 
Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Mortgage-backed securities 
represent interests in &#x201c;pools&#x201d; of mortgages and often involve risks that are different from 
or potentially more significant than risks associated with other types of debt instruments. Mortgage 
securities differ from typical debt securities in that principal is not paid back at maturity, but rather 
periodically over the life of the security. A fund may receive unscheduled payments of principal due 
to voluntary prepayments, refinancings or foreclosures on the underlying mortgage loans. When interest 
rates decline, borrowers may pay off their mortgages sooner than expected. This can reduce the returns 
of a fund because it may have to reinvest that money at the lower prevailing interest rates. As a result, 
mortgage securities may be less effective than some other types of debt securities as a means of securing 
long-term interest rates and may have less potential for capital appreciation during periods of falling 
interest rates. Conversely, in a period of rising interest rates, a fund may exhibit additional volatility 
since rising interest rates tend to extend the duration of fixed rate mortgage-related securities, making 
them more sensitive to changes in interest rates. As interest rates rise mortgage borrowers are less 
likely to exercise prepayment options, which may reduce the value of these securities and potentially 
cause a fund to lose money. This is known as extension risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_InterestRateRisk2_S000071470Summary73Member"
      id="ixv-75365">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000071470Summary73Member"
      id="ixv-75370">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_Inflation-ProtectedSecuritiesTaxRisk2_S000071470Summary73Member"
      id="ixv-75375">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_RisksofInvestingforInflationProtection2_S000071470Summary73Member"
      id="ixv-75380">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation 
Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected 
security are adjusted periodically for changes in inflation, the income distributed by a fund investing 
in such securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least 
the original face value of any inflation-protected securities the Treasury issues, other issuers may 
not offer the same guarantee. Inflation-protected securities are not protected against deflation. As 
a result, in a period of deflation, the principal and income of inflation-protected securities held by 
a fund will decline and the fund may suffer a loss during such periods. While inflation-protected securities 
are expected to be protected from long-term inflationary trends, short-term increases in inflation may 
lead to a decline in the value of a fund holding such securities. For example, if interest rates rise 
due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_CreditRisk2_S000071470Summary73Member"
      id="ixv-75385">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may 
be unable to make interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s 
credit rating or a perceived change in an issuer&#x2019;s financial strength &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;may affect a security&#x2019;s value, and thus, impact the performance of a fund 
holding such securities. Government agency obligations have different levels of credit support and, therefore, 
different degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government 
that are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest. Credit risk is greater for fixed income securities with ratings below investment grade 
(e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s). Fixed income securities that 
are below investment grade involve high credit risk and are considered speculative. Below investment 
grade fixed income securities may also fluctuate in value more than higher quality fixed income securities 
and, during periods of market volatility, may be more difficult to sell at the time and price the Portfolio 
desires.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_HighYieldRisk2_S000071470Summary73Member"
      id="ixv-75395">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Yield Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities rated below investment grade may be subject to greater credit, valuation, 
price volatility, and liquidity risks than investment grade securities. Fixed income securities that 
are below investment grade involve high credit risk and are considered speculative. Below investment 
grade fixed income securities may also fluctuate in value more than higher quality fixed income securities 
and, during periods of market volatility, may be more difficult to sell at the time and price a fund 
desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_IncomeRisk2_S000071470Summary73Member"
      id="ixv-75400">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_CallRisk2_S000071470Summary73Member"
      id="ixv-75405">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_DerivativesRisk2_S000071470Summary73Member"
      id="ixv-75410">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_LiquidityRisk2_S000071470Summary73Member"
      id="ixv-75414">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;of shares of a fund are concentrated in one or a few investors. Investments that 
are illiquid or that trade in lower volumes may be more difficult to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_SecuritiesLendingRisk2_S000071470Summary73Member"
      id="ixv-75424">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_OperationalRisk2_S000071470Summary73Member"
      id="ixv-75428">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_CyberSecurityRisk2_S000071470Summary73Member"
      id="ixv-75433">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275931"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-75443">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275932">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275933"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of 
future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275934">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275935">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275936">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275937">DFA Global 
Core Plus Real Return Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275938">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275939">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275940"
      unitRef="pure">0.0649</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275941">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275942"
      unitRef="pure">-0.0908</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275943">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275944">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275945">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275946"
      unitRef="pure">0.0635</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210426_20251231_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="_5963_"
      unitRef="pure">0.0242</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275948">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275949"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210426_20251231_AfterTaxesOnDistributionsMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="_5966_"
      unitRef="pure">0.0111</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      id="ixv-275951">Return After Taxes on Distributions and Sale of Portfolio 
Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275952"
      unitRef="pure">0.0376</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210426_20251231_AfterTaxesOnDistributionsAndSalesMember_C000226674Member_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="_5969_"
      unitRef="pure">0.0128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3240_S000071470Member_S000071470Summary73Member"
      id="ixv-275954">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000071470Member_S000071470Summary73Member"
      id="ixv-275955">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3241_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="ixv-275956"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210426_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3241_S000071470Member_S000071470Summary73Member"
      decimals="INF"
      id="_5973_"
      unitRef="pure">0.0079</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275958"> DFA Municipal Real Return Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275959"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85262">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Municipal Real Return Portfolio (the &#x201c;Municipal Real Return Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek inflation protection and to provide current income from municipal 
securities.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275960"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85269">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275961">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275962">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275963"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275964"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275965"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275966">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85328">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275967"
      unitRef="usd">25</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275968"
      unitRef="usd">25</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275969"
      unitRef="usd">77</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275970"
      unitRef="usd">77</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275971"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275972"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275973"
      unitRef="usd">135</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275974"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275975"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275976"
      unitRef="usd">306</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275977">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85355">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;132%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275978"
      unitRef="pure">1.32</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275979"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85365">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Municipal Real Return Portfolio seeks its investment objective 
by investing primarily in a universe of investment grade municipal securities, including inflation-protected 
municipal securities, and in derivative instruments to provide inflation protection. Municipal securities 
in which the Portfolio may invest include, among others, revenue bonds, general obligation bonds, industrial 
development bonds, municipal lease obligations, commercial paper, variable rate demand obligations and 
other instruments (including participation interests in such securities) issued by or on behalf of the 
states, territories and possessions of the United States (including the District of Columbia) and their 
political subdivisions, agencies and instrumentalities. The interest on the municipal securities purchased 
by the Portfolio, in the opinion of bond counsel for the issuers and under current tax law, is exempt 
from federal income tax (i.e., excludable from gross income for individuals for federal income tax purposes 
but not necessarily exempt from &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;state or local taxes). As a fundamental investment policy, under normal market 
conditions, the Portfolio will invest at least 80% of its net assets in municipal securities that pay 
interest exempt from federal income tax. The Portfolio does not currently intend to invest its assets 
in municipal securities whose interest is subject to the federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Under 
normal circumstances, the Municipal Real Return Portfolio will maintain a weighted average duration of 
no greater than five years. If a security has been or is expected to be redeemed by the issuer at a date 
prior to the stated final maturity date for the purposes of the above duration restriction, the early 
redemption date shall be considered the maturity date regardless of the stated final maturity. If a security's 
coupon or interest rate is periodically reset, the reset date will be considered for the purposes of 
the above duration restriction. Duration is a measure of the sensitivity of a security&#x2019;s price 
to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will be to 
changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At least 75% of the assets of the Municipal Real Return Portfolio 
will be invested in municipal securities that, at the time of purchase, are rated in the top three credit-rating 
categories (e.g., Aaa, Aa and A for Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or AAA, AA and 
A for S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;), or 
an equivalent rating assigned by another nationally recognized statistical rating organization, or that 
are unrated but have been determined by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) to be 
of comparable quality). No more than 25% of the Portfolio&#x2019;s assets will be invested in municipal 
securities that, at the time of purchase, are rated in the lowest quarter of the investment grade spectrum 
(e.g., rated Baa1 to Baa3 (by Moody&#x2019;s) or BBB+ to BBB- (by S&amp;amp;P or Fitch), or an equivalent 
rating assigned by another nationally recognized statistical rating organization, or that are unrated 
but have been determined by the Advisor to be of comparable quality). The fixed income securities in 
which the Portfolio invests are considered investment grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The Municipal Real Return Portfolio may invest more than 25% of its assets in municipal 
securities issued to finance projects in a particular segment of the bond market including, but not limited 
to, health care, housing, education, utilities, and transportation. The Portfolio also may invest more 
than 25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Municipal Real Return 
Portfolio may (1)&#160;purchase certain municipal securities that are insured, (2)&#160;invest in municipal 
securities secured by mortgages on single-family homes and multi-family projects, (3)&#160;invest in 
pre-refunded municipal securities, (4)&#160;purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; 
basis, and (5)&#160;use derivatives, such as fixed income related futures and options contracts, credit 
default swaps and interest rate swaps, to hedge against changes in interest rates. The Portfolio may 
also invest in exchange-traded funds (ETFs) to gain exposure to the municipal bond market pending investment 
in municipal bonds. The Portfolio may also invest in money market funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Municipal Real Return Portfolio may enter into swaps, such as inflation swaps, to seek inflation protection. 
The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Portfolio&#x2019;s total return. The Portfolio also may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the Municipal Real Return 
Portfolio attempts to invest all of its assets in tax-exempt securities, it is possible, although not 
anticipated, that a portion of its assets may be invested in securities that pay taxable interest, including 
interest that may be subject to the federal alternative minimum tax. These investments could generate 
taxable income for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_PrincipalRisks2_S000046723Summary74Member"
      id="ixv-85378">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_RiskLoseMoneyMember_S000046723Summary74Member"
      id="ixv-275980">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_RiskNotInsuredMember_S000046723Summary74Member"
      id="ixv-275981">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_MarketRisk2_S000046723Summary74Member"
      id="ixv-85389">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_InterestRateRisk2_S000046723Summary74Member"
      id="ixv-85394">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_CreditRisk2_S000046723Summary74Member"
      id="ixv-85399">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000046723Summary74Member"
      id="ixv-85404">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_Inflation-ProtectedSecuritiesTaxRisk2_S000046723Summary74Member"
      id="ixv-85409">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_RisksofInvestingforInflationProtection2_S000046723Summary74Member"
      id="ixv-85414">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation 
Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected 
security are adjusted periodically for changes in inflation, the income distributed by a fund investing 
in such securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least 
the original face value of any inflation-protected securities the Treasury issues, other issuers may 
not offer the same guarantee. Inflation-protected securities are not protected against deflation. As 
a result, in a period of deflation, the principal and income of inflation-protected securities held by 
a fund will decline and the fund may suffer a loss during such periods. While inflation-protected securities 
are expected to be protected from long-term inflationary trends, short-term increases in inflation may 
lead to a decline in the value of a fund holding such securities. For example, if interest rates rise 
due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_IncomeRisk2_S000046723Summary74Member"
      id="ixv-85419">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_CallRisk2_S000046723Summary74Member"
      id="ixv-85424">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_TaxLiabilityRisk2_S000046723Summary74Member"
      id="ixv-85432">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax 
liability risk is the risk that distributions by a fund become taxable to shareholders due to noncompliant 
conduct by a municipal bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations 
of tax laws by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. Additionally, 
if a fund's use of derivative instruments for hedging and non-hedging purposes cause the fund to invest 
less than 50% of its assets in municipal securities in any quarter, which a fund does not anticipate, 
the fund may fail to qualify to pay exempt-interest dividends to its shareholders, resulting in the distributions 
by the fund becoming taxable to shareholders as ordinary income.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_MunicipalSecuritiesRisk2_S000046723Summary74Member"
      id="ixv-85437">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_MunicipalProject-SpecificRisk2_S000046723Summary74Member"
      id="ixv-85442">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of projects in a segment of 
the municipal bond market (such as education, health care, housing, education, utilities or transportation) 
or industrial development bonds. A change that affects one project in a particular segment of the market, 
such as proposed legislation on the financing of the project, a shortage of the materials needed for 
the project, or a declining need for the project, would likely affect all similar projects, thereby increasing 
market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_VariableRateDemandObligationsRisk2_S000046723Summary74Member"
      id="ixv-85447">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active 
secondary market. These VRDOs could be difficult to dispose of if the remarketing agent defaults on its 
payment obligation and/or if the fund is not entitled to exercise its demand rights, which could cause 
a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_DerivativesRisk2_S000046723Summary74Member"
      id="ixv-85453">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. 
Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will 
work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses 
if the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. Additionally, payments made or received by a fund under such derivatives may increase 
the amount of distributions taxable to you as ordinary income, increase or decrease the amount of capital 
gain distributions to you and/or decrease the amount available for distribution to you as exempt-interest 
dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_HighPortfolioTurnoverRisk2_S000046723Summary74Member"
      id="ixv-85457">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
When high portfolio turnover (more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities 
and the reinvestment by the fund in other portfolio securities, such high portfolio turnover may &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;result in increased transaction costs, including brokerage commissions, dealer 
mark-ups and other transaction costs. Additionally, the sale of a fund&#x2019;s portfolio securities may 
result in the distribution of higher capital gains as compared to a fund with less active trading policies. 
Alternatively, for fixed income funds, a higher portfolio turnover may be in part the result of bonds 
being held to their maturity, which may have a minimal impact on transaction costs and taxes.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_LiquidityRisk2_S000046723Summary74Member"
      id="ixv-85466">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_OperationalRisk2_S000046723Summary74Member"
      id="ixv-85471">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_CyberSecurityRisk2_S000046723Summary74Member"
      id="ixv-85476">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275983"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-85486">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275984">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275985"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275986">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275987">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275988">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275989">DFA Municipal 
Real Return Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-275990">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-275991">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275992"
      unitRef="pure">0.0526</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-275993">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275994"
      unitRef="pure">-0.0541</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-275995">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-275996">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-275997">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275998"
      unitRef="pure">0.0312</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-275999"
      unitRef="pure">0.0279</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276000"
      unitRef="pure">0.0275</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-276001">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276002"
      unitRef="pure">0.0291</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276003"
      unitRef="pure">0.0269</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276004"
      unitRef="pure">0.0270</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      id="ixv-276005">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276006"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276007"
      unitRef="pure">0.0257</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000145907Member_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276008"
      unitRef="pure">0.0251</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3242_S000046723Member_S000046723Summary74Member"
      id="ixv-276009">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000046723Member_S000046723Summary74Member"
      id="ixv-276010">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3243_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276011"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3243_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276012"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3243_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276013"
      unitRef="pure">0.0225</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3244_S000046723Member_S000046723Summary74Member"
      id="ixv-276014">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3245_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276015"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3245_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276016"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3245_S000046723Member_S000046723Summary74Member"
      decimals="INF"
      id="ixv-276017"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276018"> DFA California Municipal 
Real Return Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276019"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-85826">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the DFA California Municipal Real 
Return Portfolio (the &#x201c;California Municipal Real Return Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) 
is to seek to provide inflation protection and earn current income that is expected to be exempt from 
federal personal income taxes and California state personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276020"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-85833">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276021">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276022">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276023"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276024"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276025"
      unitRef="pure">0.0025</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276026">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-85892">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276027"
      unitRef="usd">26</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276028"
      unitRef="usd">26</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276029"
      unitRef="usd">80</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276030"
      unitRef="usd">80</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276031"
      unitRef="usd">141</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276032"
      unitRef="usd">141</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276033"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276034"
      unitRef="usd">318</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276035"
      unitRef="usd">318</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276036"
      unitRef="usd">318</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276037">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-85919">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;137%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276038"
      unitRef="pure">1.37</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276039"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-85929">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Municipal Real Return Portfolio seeks to achieve 
its investment objective by investing primarily in a universe of municipal securities, including inflation-protected 
municipal securities, issued by or on behalf of California state or local governments and their agencies, 
instrumentalities, and regional governmental authorities, and in derivative instruments to provide inflation 
protection. The Portfolio may also invest a portion of its assets in municipal securities issued by U.S. 
territories that are exempt from state taxation under federal law. Municipal securities in which the 
Portfolio may invest include, among others, revenue bonds, general obligation bonds, industrial development 
bonds, municipal lease obligations, commercial paper, variable rate demand obligations and other instruments 
(including participation interests in such securities). The interest on the municipal securities purchased 
by the Portfolio, in the opinion of bond counsel for the issuers and under current tax law, is exempt 
from &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;federal income tax (i.e., excludable from gross income for individuals for federal 
income tax purposes) and California state personal income tax. As a fundamental investment policy, under 
normal market conditions, the Portfolio will invest at least 80% of its net assets in municipal securities 
that pay interest exempt from federal income tax and California state personal income tax. The Portfolio 
does not currently intend to invest its assets in municipal securities whose interest is subject to the 
federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Under normal circumstances, the California 
Municipal Real Return Portfolio will maintain a weighted average duration of no greater than five years. 
If a security has been or is expected to be redeemed by the issuer at a date prior to the stated final 
maturity date for the purposes of the above duration restriction, the early redemption date shall be 
considered the maturity date regardless of the stated final maturity. If a security's coupon or interest 
rate is periodically reset, the reset date will be considered for the purposes of the above duration 
restriction. Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest 
rates. The longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The California Municipal Real Return Portfolio may invest more than 25% of its assets 
in municipal securities issued to finance projects in a particular segment of the bond market including, 
but not limited to, health care, housing, education, utilities, and transportation. The Portfolio also 
may invest more than 25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
California Municipal Real Return Portfolio intends to maintain a dollar-weighted average credit quality 
equal to or better than the lower of: (i)&#160;a credit quality rating of AA by S&amp;amp;P Global Ratings 
(&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aa2 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) 
or (ii)&#160;the credit quality of general obligation bonds issued by the State of California. For purposes 
of the above policy on dollar-weighted average credit quality, unrated securities may be included if 
such securities have been determined by the Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;)&#160;to 
be of comparable quality.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Municipal Real Return Portfolio may (1)&#160;purchase 
certain municipal securities that are insured, (2)&#160;invest in municipal securities secured by mortgages 
on single-family homes and multi-family projects, (3)&#160;invest in pre-refunded municipal securities, 
(4)&#160;purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; basis and (5)&#160;use 
derivatives, such as fixed income related futures and options contracts, credit default swaps and interest 
rate swaps, to hedge against changes in interest rates. The Portfolio may also invest in exchange-traded 
funds (ETFs) to gain exposure to the municipal bond market pending investment in municipal bonds. The 
Portfolio may also invest in money market funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Municipal 
Real Return Portfolio may enter into swaps, such as inflation swaps, to seek inflation protection. The 
Portfolio also may enter into credit default swaps on issuers or indices to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Portfolio&#x2019;s total return. The Portfolio also may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the California Municipal 
Real Return Portfolio attempts to invest all of its assets in tax-exempt securities (federal and State 
of California), it is possible, although not anticipated, that a portion of its assets may be invested 
in securities that pay taxable interest, including interest that may be subject to the federal alternative 
minimum tax. These investments could generate taxable income for shareholders.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
California Municipal Real Return Portfolio is primarily designed for investment by California taxpayers.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_PrincipalRisks2_S000059251Summary75Member"
      id="ixv-85943">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x15x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_RiskLoseMoneyMember_S000059251Summary75Member"
      id="ixv-276040">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_RiskNotInsuredMember_S000059251Summary75Member"
      id="ixv-276041">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_MarketRisk2_S000059251Summary75Member"
      id="ixv-85954">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_InterestRateRisk2_S000059251Summary75Member"
      id="ixv-85959">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000059251Summary75Member"
      id="ixv-85964">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_CreditRisk2_S000059251Summary75Member"
      id="ixv-85969">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. Credit risk is greater for fixed income securities with ratings below investment grade 
(e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s). Fixed income securities that 
are below investment grade involve high credit risk and are considered speculative. Below investment 
grade fixed income securities may also fluctuate in value more than higher quality fixed income securities 
and, during periods of market volatility, may be more difficult to sell at the time and price the Portfolio 
desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_Inflation-ProtectedSecuritiesTaxRisk2_S000059251Summary75Member"
      id="ixv-85974">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_RisksofInvestingforInflationProtection2_S000059251Summary75Member"
      id="ixv-85979">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation 
Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected 
security are adjusted periodically for changes in inflation, the income distributed by a fund investing 
in such securities may be irregular. Some issuers may not guarantee to pay at maturity at least the original 
face value of any inflation-protected securities.  Inflation-protected securities are not protected against 
deflation. As a result, in a period of deflation, the principal and income of inflation-protected securities 
held by a fund will decline and the fund may suffer a loss during such periods. While inflation-protected 
securities are expected to be protected from long-term inflationary trends, short-term increases in inflation 
may lead to a decline in the value of a fund holding such securities. For example, if interest rates 
rise due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_IncomeRisk2_S000059251Summary75Member"
      id="ixv-85984">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_CallRisk2_S000059251Summary75Member"
      id="ixv-85992">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_TaxLiabilityRisk2_S000059251Summary75Member"
      id="ixv-85997">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_MunicipalSecuritiesRisk2_S000059251Summary75Member"
      id="ixv-86002">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_MunicipalProject-SpecificRisk2_S000059251Summary75Member"
      id="ixv-86007">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of projects in a segment of 
the municipal bond market (such as education, health care, housing, education, utilities or transportation) 
or industrial development bonds. A change that affects one project in a particular segment of the market, 
such as proposed legislation on the financing of the project, a shortage of the materials needed for 
the project, or a declining need for the project, would likely affect all similar projects, thereby increasing 
market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_State-SpecificRisk2_S000059251Summary75Member"
      id="ixv-86012">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its investments primarily in California municipal securities 
will be highly sensitive to events affecting the fiscal stability of the State of California and its 
agencies, municipalities, authorities and other instrumentalities that issue securities. Having a significant 
percentage of its assets invested in the securities of fewer issuers, particularly obligations of government 
issuers of a single state, could result in greater credit risk exposure to a smaller number of issuers 
due to economic, regulatory or political problems in California.  These issues may include economic or 
political policy changes, tax base erosion, unfunded pension and healthcare liabilities, state constitutional 
limits on tax increases, natural disasters or environmental issues (including drought and wildfires), 
budget deficits and other financial difficulties, and changes in the credit ratings assigned to municipal 
issuers of California. Also, to the extent that a fund makes significant investments in securities issued 
to finance projects in a particular segment of the California municipal securities market such focused 
investment may cause the value of the fund&#x2019;s shares to change more than the value of shares of 
funds that invest more broadly. These risks are disclosed in more detail in the Portfolio&#x2019;s Statement 
of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_VariableRateDemandObligationsRisk2_S000059251Summary75Member"
      id="ixv-86017">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active 
secondary market. These VRDOs could be difficult to dispose of if the remarketing agent defaults on its 
payment obligation and/or if the fund is not entitled to exercise its demand rights, which could cause 
a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_DerivativesRisk2_S000059251Summary75Member"
      id="ixv-86023">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. 
Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will 
work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses 
if the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;difficulties with respect to valuation. Changes in the value of a derivative may 
not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the 
principal amount invested. Additional risks are associated with the use of swaps including counterparty 
and credit risk (the risk that the other party to a swap agreement will not fulfill its contractual obligations, 
whether because of bankruptcy or other default) and liquidity risk (the possible lack of a secondary 
market for the swap agreement). Credit risk increases when a fund is the seller of swaps and counterparty 
risk increases when the fund is a buyer of swaps. In addition, where a fund is the seller of swaps, it 
may be required to liquidate portfolio securities at inopportune times in order to meet payment obligations. 
Swaps may be illiquid or difficult to value. Additionally, payments made or received by a fund under 
such derivatives may increase the amount of distributions taxable to you as ordinary income, increase 
or decrease the amount of capital gain distributions to you and/or decrease the amount available for 
distribution to you as exempt-interest dividends. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_HighPortfolioTurnoverRisk2_S000059251Summary75Member"
      id="ixv-86032">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High 
Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; When high portfolio turnover (more than 100%) is caused by 
the sale of a fund&#x2019;s portfolio securities and the reinvestment by the fund in other portfolio securities, 
such high portfolio turnover may result in increased transaction costs, including brokerage commissions, 
dealer mark-ups and other transaction costs. Additionally, the sale of a fund&#x2019;s portfolio securities 
may result in the distribution of higher capital gains as compared to a fund with less active trading 
policies. Alternatively, for fixed income funds, a higher portfolio turnover may be in part the result 
of bonds being held to their maturity, which may have a minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_LiquidityRisk2_S000059251Summary75Member"
      id="ixv-86036">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_OperationalRisk2_S000059251Summary75Member"
      id="ixv-86041">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_CyberSecurityRisk2_S000059251Summary75Member"
      id="ixv-86046">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276043"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-86056">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276044">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276045"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276046">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276047">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276048">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276049">DFA California 
Municipal Real Return Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276050">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276051">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276052"
      unitRef="pure">0.0474</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276053">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276054"
      unitRef="pure">-0.0597</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276055">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276056">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276057">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276058"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276059"
      unitRef="pure">0.0278</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20171101_20251231_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="_6150_"
      unitRef="pure">0.0252</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276061">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276062"
      unitRef="pure">0.0289</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276063"
      unitRef="pure">0.0268</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20171101_20251231_AfterTaxesOnDistributionsMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="_6154_"
      unitRef="pure">0.0246</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      id="ixv-276065">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276066"
      unitRef="pure">0.0310</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276067"
      unitRef="pure">0.0255</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20171101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000194527Member_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="_6158_"
      unitRef="pure">0.0231</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3246_S000059251Member_S000059251Summary75Member"
      id="ixv-276069">S&amp;P Intermediate Term California 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000059251Member_S000059251Summary75Member"
      id="ixv-276070">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3247_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276071"
      unitRef="pure">0.0459</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3247_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276072"
      unitRef="pure">0.0109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20171101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3247_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="_6163_"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3248_S000059251Member_S000059251Summary75Member"
      id="ixv-276074">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3249_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276075"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3249_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="ixv-276076"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20171101_20251231_SPNationalAMT-FreeMunicipalBondIndex3249_S000059251Member_S000059251Summary75Member"
      decimals="INF"
      id="_6168_"
      unitRef="pure">0.0219</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276078"> DFA Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276079"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Municipal Bond Portfolio (the &#x201c;Municipal Bond Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to provide current income that is exempt from federal personal 
income tax.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276080"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86430">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276081">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276082">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276083"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276084"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276085"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276086">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86489">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276087"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276088"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276089"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276090"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276091"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276092"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276093"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276094"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276095"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276096"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276097">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86516">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;76%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276098"
      unitRef="pure">0.76</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276099"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86526">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Municipal Bond Portfolio seeks its investment objective 
by investing primarily in a universe of investment grade municipal securities, the interest on which 
is exempt from regular federal income tax. Municipal securities in which the Portfolio may invest include, 
among others, revenue bonds, general obligation bonds, industrial development bonds, municipal lease 
obligations, commercial paper, variable rate demand obligations and other instruments (including participation 
interests in such securities) issued by or on behalf of the states, territories and possessions of the 
United States (including the District of Columbia) and their political subdivisions, agencies and instrumentalities. 
The interest on the municipal securities purchased by the Portfolio, in the opinion of bond counsel for 
the issuers and under current tax law, is exempt from federal income tax (i.e., excludable from gross 
income for individuals for federal income tax purposes but not necessarily exempt from state or local 
taxes). As a fundamental investment policy, under normal market conditions, the Portfolio will invest 
at least 80% of its net assets in municipal securities &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;that pay interest exempt from federal income tax. The Portfolio does not currently 
intend to invest its assets in municipal securities whose interest is subject to the federal alternative 
minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the Municipal Bond Portfolio will acquire obligations 
that mature within fifteen years from the date of settlement, and in variable rate demand obligations 
with longer maturities. Under normal circumstances, the Portfolio will maintain a weighted average duration 
of more than three years but less than five years. In making purchase decisions, if the expected term 
premium is greater for longer-term securities in the eligible maturity range, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) will focus investment in the longer-term area, otherwise, the Portfolio 
will focus investment in the shorter-term area of the eligible maturity range. If a security has been 
or is expected to be redeemed by the issuer at a date prior to the stated final maturity date for the 
purposes of the above duration restriction, the early redemption date shall be considered the maturity 
date regardless of the stated final maturity. If a security's coupon or interest rate is periodically 
reset, the reset date will be considered for the purposes of the above duration restriction. Duration 
is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The longer 
a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At 
least 75% of the assets of the Municipal Bond Portfolio will be invested in municipal securities that, 
at the time of purchase, are rated in the top three credit-rating categories (e.g., Aaa, Aa and A for 
Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or AAA, AA and A for S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;), or an equivalent rating assigned by another nationally recognized 
statistical rating organization, or that are unrated but have been determined by the Advisor to be of 
comparable quality). No more than 25% of the Portfolio&#x2019;s assets will be invested in municipal securities 
that, at the time of purchase, are rated in the lowest quarter of the investment grade spectrum (e.g., 
rated Baa1 to Baa3 (by Moody&#x2019;s) or BBB+ to BBB- (by S&amp;amp;P or Fitch), or an equivalent rating 
assigned by another nationally recognized statistical rating organization, or that are unrated but have 
been determined by the Advisor to be of comparable quality). The fixed income securities in which the 
Portfolio invests are considered investment grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The Municipal Bond Portfolio may invest more than 25% of its assets in municipal securities 
issued to finance projects in a particular segment of the bond market including, but not limited to, 
health care, housing, education, utilities, and transportation. The Portfolio also may invest more than 
25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Municipal Bond Portfolio 
may (1)&#160;purchase certain municipal securities that are insured, (2)&#160;invest in municipal securities 
secured by mortgages on single-family homes and multi-family projects, (3)&#160;invest in pre-refunded 
municipal securities, (4)&#160;purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; 
basis, and (5)&#160;use derivatives, such as fixed income related futures and options contracts, credit 
default swaps and interest rate swaps, to hedge against changes in interest rates. The Portfolio may 
also invest in exchange-traded funds (ETFs) to gain exposure to the municipal bond market pending investment 
in municipal bonds. The Portfolio may also invest in money market funds. The Portfolio also may purchase 
or sell futures contracts and options on futures contracts, to hedge its interest rate exposure or for 
non-hedging purposes, such as a substitute for direct investment or to increase or decrease market exposure 
based on actual or expected cash inflows or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although 
the Municipal Bond Portfolio attempts to invest all of its assets in tax-exempt securities, it is possible, 
although not anticipated, that a portion of its assets may be invested in securities that pay taxable 
interest, including interest that may be subject to the federal alternative minimum tax. These investments 
could generate taxable income for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_PrincipalRisks2_S000048085Summary76Member"
      id="ixv-86538">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_RiskLoseMoneyMember_S000048085Summary76Member"
      id="ixv-276100">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_RiskNotInsuredMember_S000048085Summary76Member"
      id="ixv-276101">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_MarketRisk2_S000048085Summary76Member"
      id="ixv-86547">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_InterestRateRisk2_S000048085Summary76Member"
      id="ixv-86552">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_CreditRisk2_S000048085Summary76Member"
      id="ixv-86557">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_IncomeRisk2_S000048085Summary76Member"
      id="ixv-86562">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_CallRisk2_S000048085Summary76Member"
      id="ixv-86567">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_TaxLiabilityRisk2_S000048085Summary76Member"
      id="ixv-86572">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_MunicipalSecuritiesRisk2_S000048085Summary76Member"
      id="ixv-86577">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_MunicipalProject-SpecificRisk2_S000048085Summary76Member"
      id="ixv-86582">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of projects in a segment of 
the municipal bond market (such as education, health care, housing, education, utilities or transportation) 
or industrial development bonds. A change that affects one project in a particular segment of the market, 
such as proposed legislation on the financing of the project, a shortage of the materials needed for 
the project, or a declining need for the project, would likely affect all similar projects, thereby increasing 
market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_VariableRateDemandObligationsRisk2_S000048085Summary76Member"
      id="ixv-86587">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active 
secondary market. These VRDOs could be difficult to dispose of if the remarketing agent defaults on its 
payment obligation and/or if the fund is not entitled to exercise its demand rights, which could cause 
a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_DerivativesRisk2_S000048085Summary76Member"
      id="ixv-86593">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;offsetting one investment position with another) or non-hedging purposes. Hedging 
with derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. 
While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if 
the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. Additionally, payments made or received by a fund under such derivatives may increase 
the amount of distributions taxable to you as ordinary income, increase or decrease the amount of capital 
gain distributions to you and/or decrease the amount available for distribution to you as exempt-interest 
dividends. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_LiquidityRisk2_S000048085Summary76Member"
      id="ixv-86602">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity 
risk exists when particular portfolio investments are difficult to purchase or sell. To the extent that 
a fund holds illiquid investments, the fund&#x2019;s performance may be reduced due to an inability to 
sell the investments at opportune prices or times. Liquid portfolio investments may become illiquid or 
less liquid after purchase by a fund due to low trading volume, adverse investor perceptions, credit 
tightening and/or other market developments. Liquidity risk includes the risk that a fund will experience 
significant net redemptions at a time when it cannot find willing buyers for its portfolio securities 
or can only sell its portfolio securities at a material loss or at increased costs. Liquidity risk can 
be more pronounced in periods of market turmoil or in situations where ownership of shares of a fund 
are concentrated in one or a few investors. Investments that are illiquid or that trade in lower volumes 
may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_OperationalRisk2_S000048085Summary76Member"
      id="ixv-86607">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_CyberSecurityRisk2_S000048085Summary76Member"
      id="ixv-86612">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276102"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-86622">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276103">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276104"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276105">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276106">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276107">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276108">DFA Municipal 
Bond Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276109">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276110">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276111"
      unitRef="pure">0.0432</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276112">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276113"
      unitRef="pure">-0.0412</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276114">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276115">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276116">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276117"
      unitRef="pure">0.0391</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276118"
      unitRef="pure">0.0062</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276119"
      unitRef="pure">0.0137</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276120">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276121"
      unitRef="pure">0.0391</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276122"
      unitRef="pure">0.0062</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276123"
      unitRef="pure">0.0137</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      id="ixv-276124">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276125"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276126"
      unitRef="pure">0.0077</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000151980Member_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276127"
      unitRef="pure">0.0136</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3250_S000048085Member_S000048085Summary76Member"
      id="ixv-276128">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000048085Member_S000048085Summary76Member"
      id="ixv-276129">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3251_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276130"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3251_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276131"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3251_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276132"
      unitRef="pure">0.0225</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3252_S000048085Member_S000048085Summary76Member"
      id="ixv-276133">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3253_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276134"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3253_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276135"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3253_S000048085Member_S000048085Summary76Member"
      decimals="INF"
      id="ixv-276136"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276137"> DFA Short-Term Municipal 
Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276138"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-86960">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Short-Term Municipal Bond Portfolio (the &#x201c;Short-Term Municipal 
Bond Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide current income that is exempt from 
federal personal income taxes and to preserve investors&#x2019; principal.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276139"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-86967">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276140">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276141">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276142"
      unitRef="pure">0.0015</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276143"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276144"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276145">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-87026">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276146"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276147"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276148"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276149"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276150"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276151"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276152"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276153"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276154"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276155"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276156">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-87053">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;198%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276157"
      unitRef="pure">1.98</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276158"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-87063">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Municipal Bond Portfolio seeks its investment 
objective by investing primarily in a universe of investment grade municipal securities, the interest 
on which is exempt from regular federal income tax. Municipal securities in which the Portfolio may invest 
include, among others, revenue bonds, general obligation bonds, industrial development bonds, municipal 
lease obligations, commercial paper, variable rate demand obligations and other instruments (including 
participation interests in such securities) issued by or on behalf of the states, territories and possessions 
of the United States (including the District of Columbia) and their political subdivisions, agencies 
and instrumentalities. The interest on the municipal securities purchased by the Portfolio, in the opinion 
of bond counsel for the issuers and under current tax law, is exempt from federal income tax (i.e., excludable 
from gross income for individuals for federal income tax purposes but not necessarily exempt from state 
or local taxes). As a &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fundamental investment policy, under normal market conditions, the Portfolio will 
invest at least 80% of its net assets in municipal securities that pay interest exempt from federal income 
tax. The Portfolio does not currently intend to invest its assets in municipal securities whose interest 
is subject to the federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Generally, 
the Short-Term Municipal Bond Portfolio will acquire obligations that mature within three years from 
the date of settlement, but substantial investments may be made in obligations maturing up to ten years 
from the date of settlement when greater expected returns are available, and in variable rate demand 
obligations with longer maturities. Under normal circumstances, the Portfolio will maintain a weighted 
average effective maturity of three years or less.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
effective maturity adjusts the stated final maturity of a fixed income security for an actual or expected 
event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest rate 
reset, or other similar event. In making purchase decisions, if the expected term premium is greater 
for longer-term securities in the eligible maturity range, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
will focus investment in the longer-term area, otherwise, the Portfolio will focus investment in the 
shorter-term area of the eligible maturity range. If a security has been or is expected to be redeemed 
by the issuer at a date prior to the stated final maturity date for the purposes of the above maturity 
restriction, the early redemption date shall be considered the maturity date regardless of the stated 
final maturity.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a security's coupon or 
interest rate is periodically reset, the reset date will be considered for the purposes of the above 
duration restriction.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At least 75% of the assets of the Short-Term Municipal Bond 
Portfolio will be invested in municipal securities that, at the time of purchase, are rated in the top 
three credit-rating categories (e.g., Aaa, Aa and A for Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) 
or AAA, AA and A for S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;), 
or an equivalent rating assigned by another nationally recognized statistical rating organization, or 
that are unrated but have been determined by the Advisor to be of comparable quality). No more than 25% 
of the Portfolio&#x2019;s assets will be invested in municipal securities that, at the time of purchase, 
are rated in the lowest quarter of the investment grade spectrum (e.g., rated Baa1 to Baa3 (by Moody&#x2019;s) 
or BBB+ to BBB- (by S&amp;amp;P or Fitch), or an equivalent rating assigned by another nationally recognized 
statistical rating organization, or that are unrated but have been determined by the Advisor to be of 
comparable quality). The fixed income securities in which the Portfolio invests are considered investment 
grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are often issued 
to obtain funds for various public purposes, including the construction of a wide range of public facilities, 
such as bridges, highways, housing, hospitals, mass transportation facilities, schools, streets and public 
utilities, such as water and sewer works. Municipal securities include municipal leases, certificates 
of participation, municipal obligation components and municipal custody receipts. The Short-Term Municipal 
Bond Portfolio may invest more than 25% of its assets in municipal securities issued to finance projects 
in a particular segment of the bond market including, but not limited to, health care, housing, education, 
utilities, and transportation. The Portfolio also may invest more than 25% of its assets in industrial 
development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Municipal Bond Portfolio may (1) purchase certain 
municipal securities that are insured, (2) invest in municipal securities secured by mortgages on single-family 
homes and multi-family projects, (3) invest in pre-refunded municipal securities, (4) purchase tax-exempt 
municipal securities on a &#x201c;when-issued&#x201d; basis, and (5) use derivatives, such as fixed income 
related futures and options contracts, credit default swaps, and interest rate swaps, to hedge against 
changes in interest rates. The Portfolio may also invest in exchange-traded funds (ETFs) to gain exposure 
to the municipal bond market pending investment in municipal bonds. The Portfolio may also invest in 
money market funds. The Portfolio also may purchase or sell futures contracts and options on futures 
contracts, to hedge its interest rate exposure or for non-hedging purposes, such as a substitute for 
direct investment or to increase or decrease market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the Short-Term Municipal Bond Portfolio attempts 
to invest all of its assets in tax-exempt securities, it is possible, although not anticipated, that 
a portion of its assets may be invested in securities that pay taxable interest, including interest that 
may be subject to the federal alternative minimum tax. These investments could generate taxable income 
for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_PrincipalRisks2_S000000973Summary77Member"
      id="ixv-87080">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_RiskLoseMoneyMember_S000000973Summary77Member"
      id="ixv-276159">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_RiskNotInsuredMember_S000000973Summary77Member"
      id="ixv-276160">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_MarketRisk2_S000000973Summary77Member"
      id="ixv-87089">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_InterestRateRisk2_S000000973Summary77Member"
      id="ixv-87094">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_CreditRisk2_S000000973Summary77Member"
      id="ixv-87099">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_IncomeRisk2_S000000973Summary77Member"
      id="ixv-87104">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_CallRisk2_S000000973Summary77Member"
      id="ixv-87109">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_TaxLiabilityRisk2_S000000973Summary77Member"
      id="ixv-87114">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_MunicipalSecuritiesRisk2_S000000973Summary77Member"
      id="ixv-87119">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_MunicipalProject-SpecificRisk2_S000000973Summary77Member"
      id="ixv-87124">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of projects in a segment of 
the municipal bond market (such as education, health care, housing, education, utilities or transportation) 
or industrial development bonds. A change that affects one project in a particular segment of the market, 
such as proposed legislation on the financing of the project, a shortage of the materials needed for 
the project, or a declining need for the project, would likely affect all similar projects, thereby increasing 
market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_VariableRateDemandObligationsRisk2_S000000973Summary77Member"
      id="ixv-87129">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active 
secondary market. These VRDOs could be difficult to dispose of if the remarketing agent defaults on its 
payment obligation and/or if the fund is not entitled to exercise its demand rights, which could cause 
a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_DerivativesRisk2_S000000973Summary77Member"
      id="ixv-87135">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;offsetting one investment position with another) or non-hedging purposes. Hedging 
with derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. 
While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if 
the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. Additionally, payments made or received by a fund under such derivatives may increase 
the amount of distributions taxable to you as ordinary income, increase or decrease the amount of capital 
gain distributions to you and/or decrease the amount available for distribution to you as exempt-interest 
dividends. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_HighPortfolioTurnoverRisk2_S000000973Summary77Member"
      id="ixv-87144">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; When 
high portfolio turnover (more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities 
and the reinvestment by the fund in other portfolio securities, such high portfolio turnover may result 
in increased transaction costs, including brokerage commissions, dealer mark-ups and other transaction 
costs. Additionally, the sale of a fund&#x2019;s portfolio securities may result in the distribution of 
higher capital gains as compared to a fund with less active trading policies. Alternatively, for fixed 
income funds, a higher portfolio turnover may be in part the result of bonds being held to their maturity, 
which may have a minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_LiquidityRisk2_S000000973Summary77Member"
      id="ixv-87148">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_OperationalRisk2_S000000973Summary77Member"
      id="ixv-87153">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_CyberSecurityRisk2_S000000973Summary77Member"
      id="ixv-87158">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276161"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-87168">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;after taxes) is not an indication of future results. Updated performance information 
for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276162">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276163"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276165">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276166">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276167">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276168">DFA Short-Term 
Municipal Bond Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276169">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276170">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276171"
      unitRef="pure">0.0136</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276172">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276173"
      unitRef="pure">-0.0096</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276174">2022-09-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276175">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276176">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276177"
      unitRef="pure">0.0293</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276178"
      unitRef="pure">0.0165</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276179"
      unitRef="pure">0.0131</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276180">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276181"
      unitRef="pure">0.0293</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276182"
      unitRef="pure">0.0165</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276183"
      unitRef="pure">0.0131</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      id="ixv-276184">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276185"
      unitRef="pure">0.0285</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276186"
      unitRef="pure">0.0165</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002724Member_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276187"
      unitRef="pure">0.0131</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearsUSMunicipalSecuritiesIndex3254_S000000973Member_S000000973Summary77Member"
      id="_6348_">ICE BofA 1-3 Years US Municipal 
Securities Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000973Member_S000000973Summary77Member"
      id="ixv-276189">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearsUSMunicipalSecuritiesIndex3255_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276190"
      unitRef="pure">0.0372</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearsUSMunicipalSecuritiesIndex3255_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276191"
      unitRef="pure">0.0156</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearsUSMunicipalSecuritiesIndex3255_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276192"
      unitRef="pure">0.0159</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3256_S000000973Member_S000000973Summary77Member"
      id="ixv-276193">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3257_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276194"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3257_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276195"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3257_S000000973Member_S000000973Summary77Member"
      decimals="INF"
      id="ixv-276196"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276197"> DFA Intermediate-Term Municipal 
Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276198"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87519">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Intermediate-Term Municipal Bond Portfolio (the &#x201c;Intermediate-Term 
Municipal Bond Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to provide current income 
that is exempt from federal personal income tax.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276199"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87526">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276200">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276201">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276202"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276203"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276204"
      unitRef="pure">0.0020</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="_6368_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276206"
      unitRef="pure">0.0019</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276207">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87609">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276208"
      unitRef="usd">19</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276209"
      unitRef="usd">19</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276210"
      unitRef="usd">63</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276211"
      unitRef="usd">63</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276212"
      unitRef="usd">112</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276213"
      unitRef="usd">112</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276214"
      unitRef="usd">112</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276215"
      unitRef="usd">254</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276216"
      unitRef="usd">254</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276217"
      unitRef="usd">254</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276218">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87636">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;56%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276219"
      unitRef="pure">0.56</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276220"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87649">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Intermediate-Term Municipal Bond Portfolio seeks its investment objective by investing primarily in a 
universe of investment grade municipal securities, the interest on which is exempt from regular federal 
income tax. Municipal securities in which the Portfolio may invest include, among others, revenue bonds, 
general obligation bonds, industrial development bonds, municipal lease obligations, commercial paper, 
variable rate demand obligations and other instruments (including participation interests in such securities) 
issued by or on behalf of the states, territories and possessions of the United States (including the 
District of Columbia) and their political subdivisions, agencies and instrumentalities. The interest 
on the municipal securities purchased by the Portfolio, in the opinion of bond counsel for the issuers 
and under current tax law, is exempt from federal income tax (i.e., excludable from gross income for 
individuals for federal income tax purposes but not necessarily exempt from state or local taxes). As 
a fundamental investment policy, under normal market conditions, the Portfolio will invest at least 80% 
of its net assets in municipal securities that pay interest exempt from federal income tax. The Portfolio 
does not currently intend to invest its assets in municipal securities whose interest is subject to the 
federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Generally, the Intermediate-Term 
Municipal Bond Portfolio will acquire obligations that mature more than three years from the date of 
settlement. Under normal circumstances, the Portfolio will generally maintain a weighted average duration 
of no more than one half year greater than, and no less than one year below, the weighted average duration 
of the S&amp;amp;P Intermediate Term National AMT-Free Municipal Bond Index, which was approximately 5.36 
years as of December 31, 2025. From time to time, the Portfolio may deviate from this duration range 
when Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) determines it to be appropriate under the 
circumstances. In any event, the Portfolio will maintain a weighted average effective maturity of more 
than three years but less than ten years.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
effective maturity adjusts the stated final maturity of a fixed income security for an actual or expected 
event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest rate 
reset, or other similar event. If a security has been or is expected to be redeemed by the issuer at 
a date prior to the stated final maturity date for the purposes of the above duration and maturity restrictions, 
the early redemption date shall be considered the maturity date regardless of the stated final maturity. 
If a security's coupon or interest rate is periodically reset, the reset date will be considered for 
the purposes of the above duration restriction. Duration is a measure of the sensitivity of a security&#x2019;s 
price to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will 
be to changes in interest rates.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At least 75% of the assets of the Intermediate-Term 
Municipal Bond Portfolio will be invested in municipal securities that, at the time of purchase, are 
rated in the top three credit-rating categories (e.g., Aaa, Aa and A for Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) 
or AAA, AA and A for S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or an equivalent rating assigned by another nationally recognized statistical rating organization, or 
that are unrated but have been determined by the Advisor to be of comparable quality). No more than 25% 
of the Portfolio&#x2019;s assets will be invested in municipal securities that, at the time of purchase, 
are rated in the lowest quarter of the investment grade spectrum (e.g, rated Baa1 to Baa3 (by Moody&#x2019;s) 
or BBB+ to BBB- (by S&amp;amp;P or Fitch), or an equivalent rating assigned by another nationally recognized 
statistical rating organization, or that are unrated but have been determined by the Advisor to be of 
comparable quality). The fixed income securities in which the Portfolio invests are considered investment 
grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are often issued 
to obtain funds for various public purposes, including the construction of a wide range of public facilities, 
such as bridges, highways, housing, hospitals, mass transportation facilities, schools, streets and public 
utilities, such as water and sewer works. Municipal securities include municipal leases, certificates 
of participation, municipal obligation components and municipal custody receipts. The Intermediate-Term 
Municipal Bond Portfolio may invest more than 25% of its assets in municipal securities issued to finance 
projects in a particular segment of the bond market including, but not limited to, health care, housing, 
education, utilities, and transportation. The Portfolio also may invest more than 25% of its assets in 
industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Intermediate-Term Municipal Bond Portfolio may (1) purchase 
certain municipal securities that are insured, (2) invest in municipal securities secured by mortgages 
on single-family homes and multi-family projects, (3)&#160;invest in pre-refunded municipal securities, 
(4) purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; basis, and (5) use derivatives, 
such as fixed income related futures and options contracts, credit default swaps, and interest rate swaps, 
to hedge against changes in interest rates. The Portfolio may also invest in exchange-traded funds (ETFs) 
to gain exposure to the municipal bond market pending investment in municipal bonds. The Portfolio may 
also invest in money market funds. The Portfolio also may purchase or sell futures contracts and options 
on futures contracts, to &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;hedge its interest rate exposure or for non-hedging purposes, such as a substitute 
for direct investment or to increase or decrease market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the Intermediate-Term Municipal Bond Portfolio attempts 
to invest all of its assets in tax-exempt securities, it is possible, although not anticipated, that 
a portion of its assets may be invested in securities that pay taxable interest, including interest that 
may be subject to the federal alternative minimum tax. These investments could generate taxable income 
for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_PrincipalRisks2_S000035595Summary78Member"
      id="ixv-87664">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_RiskLoseMoneyMember_S000035595Summary78Member"
      id="ixv-276221">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_RiskNotInsuredMember_S000035595Summary78Member"
      id="ixv-276222">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_MarketRisk2_S000035595Summary78Member"
      id="ixv-87670">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_InterestRateRisk2_S000035595Summary78Member"
      id="ixv-87675">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_CreditRisk2_S000035595Summary78Member"
      id="ixv-87680">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security, including a governmental 
entity, may be unable to make interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s 
credit rating or a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s 
value, and thus, impact the performance of a fund holding such securities. The ability of a municipal 
securities issuer to make payments could be affected by litigation, legislation or other political events 
or the bankruptcy of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_IncomeRisk2_S000035595Summary78Member"
      id="ixv-87685">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause a fund&#x2019;s 
income to decline because, among other reasons, the proceeds from maturing short-term securities in its 
portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_CallRisk2_S000035595Summary78Member"
      id="ixv-87690">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call 
Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call risk is the risk that during periods of falling interest 
rates, an issuer will call or repay a higher-yielding fixed income security before its maturity date, 
forcing a fund to reinvest in fixed income securities with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_TaxLiabilityRisk2_S000035595Summary78Member"
      id="ixv-87695">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_MunicipalSecuritiesRisk2_S000035595Summary78Member"
      id="ixv-87700">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;the sale of a portfolio investment may differ from the fund&#x2019;s valuation 
of the investment, particularly for investments that trade in thin or volatile markets or that are valued 
using a fair valuation methodology.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_MunicipalProject-SpecificRisk2_S000035595Summary78Member"
      id="ixv-87710">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal 
Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive 
to adverse economic, business or political developments if it invests a substantial portion of its assets 
in municipal securities that finance similar types of projects in a segment of the municipal bond market 
(such as education, health care, housing, education, utilities or transportation) or industrial development 
bonds. A change that affects one project in a particular segment of the market, such as proposed legislation 
on the financing of the project, a shortage of the materials needed for the project, or a declining need 
for the project, would likely affect all similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_VariableRateDemandObligationsRisk2_S000035595Summary78Member"
      id="ixv-87715">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_DerivativesRisk2_S000035595Summary78Member"
      id="ixv-87721">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_LiquidityRisk2_S000035595Summary78Member"
      id="ixv-87725">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_OperationalRisk2_S000035595Summary78Member"
      id="ixv-87730">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_CyberSecurityRisk2_S000035595Summary78Member"
      id="ixv-87735">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276223"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-87748">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276224">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276225"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276226">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276227">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276228">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276229">DFA Intermediate-Term 
Municipal Bond Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276230">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276231">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276232"
      unitRef="pure">0.0524</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276233">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276234"
      unitRef="pure">-0.0370</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276235">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276236">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276237">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276238"
      unitRef="pure">0.0407</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276239"
      unitRef="pure">0.0101</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276240"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276241">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276242"
      unitRef="pure">0.0407</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276243"
      unitRef="pure">0.0101</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276244"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      id="ixv-276245">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276246"
      unitRef="pure">0.0353</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276247"
      unitRef="pure">0.0121</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000109006Member_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276248"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3259_S000035595Member_S000035595Summary78Member"
      id="ixv-276249">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000035595Member_S000035595Summary78Member"
      id="ixv-276250">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3260_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276251"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3260_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276252"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3260_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276253"
      unitRef="pure">0.0225</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3261_S000035595Member_S000035595Summary78Member"
      id="ixv-276254">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3262_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276255"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3262_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276256"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3262_S000035595Member_S000035595Summary78Member"
      decimals="INF"
      id="ixv-276257"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276258"> DFA Selective State Municipal 
Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276259"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88083">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Selective State Municipal Bond Portfolio (the &#x201c;Selective State 
Municipal Bond Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to provide current income 
that is expected to be exempt from federal personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276260"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88090">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276261">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276262">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276263"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276264"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276265"
      unitRef="pure">0.0025</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6464_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276267"
      unitRef="pure">0.0023</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276268">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88173">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276269"
      unitRef="usd">24</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276270"
      unitRef="usd">24</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276271"
      unitRef="usd">78</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276272"
      unitRef="usd">78</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276273"
      unitRef="usd">139</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276274"
      unitRef="usd">139</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276275"
      unitRef="usd">139</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276276"
      unitRef="usd">316</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276277"
      unitRef="usd">316</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276278"
      unitRef="usd">316</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276279">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88200">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;114%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276280"
      unitRef="pure">1.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276281"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88213">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Selective State Municipal Bond Portfolio seeks its investment objective by investing primarily in a universe 
of investment grade municipal securities, the interest on which is exempt from regular federal income 
tax. Municipal securities in which the Portfolio may invest include, among others, revenue bonds, general 
obligation bonds, industrial development bonds, municipal lease obligations, commercial paper, variable 
rate demand obligations and other instruments (including participation interests in such securities) 
issued by or on behalf of the states, territories, and possessions of the United States (including the 
District of Columbia) and their political subdivisions, agencies, and instrumentalities (&#x201c;state 
issuers&#x201d;). As of the date of this prospectus, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
expects to emphasize investments in obligations issued by or on behalf of: (i) state issuers with no 
personal income tax (e.g., Wyoming, Washington, Tennessee, Texas, South Dakota, Nevada, New Hampshire, 
Florida, and Alaska); (ii) state issuers that generally tax income earned from both in-state and out-of-state 
municipal securities (e.g., Iowa, Illinois, and Wisconsin); (iii) state issuers that do not tax income 
earned from in-state municipal securities and certain out-of-state municipal securities (e.g., Utah) 
and (iv) state issuers that do not tax income earned from in-state or any out-of-state municipal securities. 
From time to time, the Advisor may emphasize investments in additional state issuers or reduce the Portfolio&#x2019;s 
emphasis on certain state issuers without notice to shareholders. The interest on the municipal securities 
purchased by the Portfolio, in the opinion of bond counsel for the issuers and under current tax law, 
is exempt from federal income tax (i.e., excludable from gross income for individuals for federal income 
tax purposes but not necessarily exempt from state or local taxes). As a fundamental investment policy, 
under normal market conditions, the Portfolio will invest at least 80% of its net assets in municipal 
securities that pay interest exempt from federal income tax. The Portfolio does not currently intend 
to invest its assets in municipal securities whose interest is subject to the federal alternative minimum 
tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the Selective State Municipal Bond Portfolio will acquire obligations 
that mature within twenty years from the date of settlement, and in variable rate demand obligations 
with longer maturities. Under normal circumstances, the Portfolio will maintain a weighted average duration 
of more than three years but less than five years. In making purchase decisions, if the expected term 
premium is greater for longer-term securities in the eligible maturity range, the Advisor will focus 
investment in the longer-term area, otherwise, the Portfolio will focus investment in the shorter-term 
area of the eligible maturity range. If a security has been or is expected to be redeemed by the issuer 
at a date prior to the stated final maturity date for the purposes of the above duration restriction, 
the early redemption date shall be considered the maturity date regardless of the stated final maturity. 
If a security's coupon or interest rate is periodically reset, the reset date will be considered for 
the purposes of the above duration restriction. Duration is a measure of the sensitivity of a security&#x2019;s 
price to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will 
be to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At least 75% of the assets of the Selective State Municipal 
Bond Portfolio will be invested in municipal securities that, at the time of purchase, are rated in the 
top three credit-rating categories (e.g., Aaa, Aa and A for Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) 
or AAA, AA and A for S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;), 
or an equivalent rating assigned by another nationally recognized statistical rating organization, or 
that are unrated but have been determined by the Advisor to be of comparable quality). No more than 25% 
of the Portfolio&#x2019;s assets will be invested in municipal securities that, at the time of purchase, 
are rated in the lowest quarter of the investment grade spectrum (e.g., rated Baa1 to Baa3 (by Moody&#x2019;s) 
or BBB+ to BBB- (by S&amp;amp;P or Fitch), or an equivalent rating assigned by another nationally recognized 
statistical rating organization, or that are unrated but have been determined by the Advisor to be of 
comparable quality). The fixed income securities in which the Portfolio invests are considered investment 
grade at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are often issued 
to obtain funds for various public purposes, including the construction of a wide range of public facilities, 
such as bridges, highways, housing, hospitals, mass transportation facilities, schools, streets and public 
utilities, such as water and sewer works. Municipal securities include municipal leases, certificates 
of participation, municipal obligation components and municipal custody receipts. The Selective State 
Municipal Bond Portfolio may invest more than 25% of its assets in municipal securities issued to finance 
projects in a particular segment of the bond market including, but not limited to, health care, housing, 
education, utilities, and transportation. The Portfolio also may invest more than 25% of its assets in 
industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Selective State Municipal Bond Portfolio may (1) purchase 
certain municipal securities that are insured, (2) invest in municipal securities secured by mortgages 
on single-family homes and multi-family projects, (3) invest in pre-refunded municipal securities, (4) 
purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; basis, and (5) use derivatives, 
such as fixed income related futures and options contracts, credit default swaps and interest rate swaps, 
&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;to hedge against changes in interest rates. The Portfolio may also invest in exchange-traded 
funds (ETFs) to gain exposure to the municipal bond market pending investment in municipal bonds. The 
Portfolio may also invest in money market funds. The Portfolio also may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the Selective State 
Municipal Bond Portfolio attempts to invest all of its assets in tax-exempt securities, it is possible, 
although not anticipated, that a portion of its assets may be invested in securities that pay taxable 
interest, including interest that may be subject to the federal alternative minimum tax. These investments 
could generate taxable income for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_PrincipalRisks2_S000066101Summary79Member"
      id="ixv-88225">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_RiskLoseMoneyMember_S000066101Summary79Member"
      id="ixv-276282">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_RiskNotInsuredMember_S000066101Summary79Member"
      id="ixv-276283">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_MarketRisk2_S000066101Summary79Member"
      id="ixv-88231">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_InterestRateRisk2_S000066101Summary79Member"
      id="ixv-88236">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_CreditRisk2_S000066101Summary79Member"
      id="ixv-88241">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_IncomeRisk2_S000066101Summary79Member"
      id="ixv-88246">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_CallRisk2_S000066101Summary79Member"
      id="ixv-88251">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_TaxLiabilityRisk2_S000066101Summary79Member"
      id="ixv-88256">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_MunicipalSecuritiesRisk2_S000066101Summary79Member"
      id="ixv-88261">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;there may be less publicly available information about the financial condition 
of municipal security issuers than for issuers of other types of securities, making the securities more 
difficult to value. The price a fund could receive upon the sale of a portfolio investment may differ 
from the fund&#x2019;s valuation of the investment, particularly for investments that trade in thin or 
volatile markets or that are valued using a fair valuation methodology.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_MunicipalProject-SpecificRisk2_S000066101Summary79Member"
      id="ixv-88271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of projects in a segment of 
the municipal bond market (such as education, health care, housing, education, utilities or transportation) 
or industrial development bonds. A change that affects one project in a particular segment of the market, 
such as proposed legislation on the financing of the project, a shortage of the materials needed for 
the project, or a declining need for the project, would likely affect all similar projects, thereby increasing 
market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_VariableRateDemandObligationsRisk2_S000066101Summary79Member"
      id="ixv-88276">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active 
secondary market. These VRDOs could be difficult to dispose of if the remarketing agent defaults on its 
payment obligation and/or if the fund is not entitled to exercise its demand rights, which could cause 
a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_DerivativesRisk2_S000066101Summary79Member"
      id="ixv-88282">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. 
Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will 
work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses 
if the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. The use of derivatives for non-hedging purposes may be considered 
to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly 
exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. Additionally, payments made or received by a fund under such derivatives may increase 
the amount of distributions taxable to you as ordinary income, increase or decrease the amount of capital 
gain distributions to you and/or decrease the amount available for distribution to you as exempt-interest 
dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_HighPortfolioTurnoverRisk2_S000066101Summary79Member"
      id="ixv-88286">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
When high portfolio turnover (more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities 
and the reinvestment by the fund in other portfolio securities, such high portfolio turnover may result 
in increased transaction costs, including brokerage commissions, dealer mark-ups and other transaction 
costs. Additionally, the sale of a fund&#x2019;s portfolio securities may result in the distribution of 
higher capital gains as compared to a fund with less active trading policies. Alternatively, for fixed 
income funds, a higher portfolio turnover may be in part the result of bonds being held to their maturity, 
which may have a minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_LiquidityRisk2_S000066101Summary79Member"
      id="ixv-88290">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_OperationalRisk2_S000066101Summary79Member"
      id="ixv-88295">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside 
a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor 
seek to reduce these operational risks through controls and procedures. However, measures that seek to 
reduce these operational risks through controls and procedures may not address every possible risk and 
may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_CyberSecurityRisk2_S000066101Summary79Member"
      id="ixv-88305">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276284"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-88315">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276285">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276286"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276287">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276288">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276289">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276290">DFA 
Selective State Municipal Bond Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276291">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276292">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276293"
      unitRef="pure">0.0428</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276294">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276295"
      unitRef="pure">-0.0529</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276296">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276297">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276298">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276299"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276300"
      unitRef="pure">0.0055</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200930_20251231_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6527_"
      unitRef="pure">0.0071</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276302">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276303"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276304"
      unitRef="pure">0.0055</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200930_20251231_AfterTaxesOnDistributionsMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6531_"
      unitRef="pure">0.0071</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      id="ixv-276306">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276307"
      unitRef="pure">0.0337</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276308"
      unitRef="pure">0.0080</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200930_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213639Member_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6535_"
      unitRef="pure">0.0091</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3263_S000066101Member_S000066101Summary79Member"
      id="ixv-276310">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000066101Member_S000066101Summary79Member"
      id="ixv-276311">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3264_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276312"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3264_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276313"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200930_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3264_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6540_"
      unitRef="pure">0.0145</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3265_S000066101Member_S000066101Summary79Member"
      id="ixv-276315">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3266_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276316"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3266_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="ixv-276317"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200930_20251231_SPNationalAMT-FreeMunicipalBondIndex3266_S000066101Member_S000066101Summary79Member"
      decimals="INF"
      id="_6545_"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276319"> DFA Short-Term Selective 
State Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276320"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88679">&lt;p style="font-size:9.0pt; font-family:Arial; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Short-Term Selective State Municipal Bond Portfolio (the &#x201c;Short-Term 
Selective State Municipal Bond Portfolio&#x201d; or &#x201c;Portfolio&#x201d;) is to seek to provide current 
income that is expected to be exempt from federal personal income taxes.&lt;/span&gt;&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276321"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88687">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276322">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276323">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276324"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276325"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276326"
      unitRef="pure">0.0025</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276327">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88746">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276328"
      unitRef="usd">26</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276329"
      unitRef="usd">26</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276330"
      unitRef="usd">80</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276331"
      unitRef="usd">80</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276332"
      unitRef="usd">141</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276333"
      unitRef="usd">141</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276334"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276335"
      unitRef="usd">318</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276336"
      unitRef="usd">318</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276337"
      unitRef="usd">318</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276338">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88773">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;227%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276339"
      unitRef="pure">2.27</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276340"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88783">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Short-Term Selective State Municipal 
Bond Portfolio seeks its investment objective by investing primarily in a universe of investment grade 
municipal securities, the interest on which is exempt from regular federal income tax. Municipal securities 
in which the Portfolio may invest include, among others, revenue bonds, general obligation bonds, industrial 
development bonds, municipal lease obligations, commercial paper, variable rate demand obligations and 
other instruments (including participation interests in such securities) issued by or on behalf of the 
states, territories, and possessions of the United States (including the District of Columbia) and their 
political subdivisions, agencies, and instrumentalities (&#x201c;state issuers&#x201d;). As of the date 
of this prospectus, Dimensional Fund &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Advisors LP (the &#x201c;Advisor&#x201d;) expects to emphasize investments in obligations 
issued by or on behalf of: (i) state issuers with no personal income tax (e.g., Wyoming, Washington, 
Tennessee, Texas, South Dakota, Nevada, New Hampshire, Florida, and Alaska); (ii) state issuers that 
generally tax income earned from both in state and out-of-state municipal securities (e.g., Iowa, Illinois, 
and Wisconsin); (iii)&#160;state issuers that do not tax income earned from in-state municipal securities 
and certain out-of-state municipal securities (e.g., Utah) and (iv) state issuers that do not tax income 
earned from in-state or any out-of-state municipal securities. From time to time, the Advisor may emphasize 
investments in additional state issuers or reduce the Portfolio&#x2019;s emphasis on certain state issuers 
without notice to shareholders. The interest on the municipal securities purchased by the Portfolio, 
in the opinion of bond counsel for the issuers and under current tax law, is exempt from federal income 
tax (i.e., excludable from gross income for individuals for federal income tax purposes but not necessarily 
exempt from state or local taxes). As a fundamental investment policy, under normal market conditions, 
the Portfolio will invest at least 80% of its net assets in municipal securities that pay interest exempt 
from federal income tax.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio does not currently intend to invest its assets 
in municipal securities whose interest is subject to the federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, 
the Portfolio will acquire obligations that mature within three years from the date of settlement, but 
substantial investments may be made in obligations maturing up to ten years from the date of settlement 
when greater expected returns are available, and in variable rate demand obligations with longer maturities. 
Under normal circumstances, the Portfolio will maintain a weighted average effective maturity of three 
years or less. The effective maturity adjusts the stated final maturity of a fixed income security for 
an actual or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon 
or interest rate reset, or other similar event. In making purchase decisions, if the expected term premium 
is greater for longer-term securities in the eligible maturity range, the Advisor will focus investment 
in the longer-term area, otherwise, the Portfolio will focus investment in the shorter-term area of the 
eligible maturity range. If a security has been or is expected to be redeemed by the issuer at a date 
prior to the stated final maturity date for the purposes of the above maturity restriction, the early 
redemption date shall be considered the maturity date regardless of the stated final maturity. If a security's 
coupon or interest rate is periodically reset, the reset date will be considered for the purposes of 
the above duration restriction.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;At least 75% of the assets of the Portfolio will be invested 
in municipal securities that, at the time of purchase, are rated in the top three credit-rating categories 
(e.g., Aaa, Aa and A for Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;), AAA, AA and A for S&amp;amp;P 
Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;), or an equivalent 
rating assigned by another nationally recognized statistical rating organization, or that are unrated 
but have been determined by the Advisor to be of comparable quality). No more than 25% of the Portfolio&#x2019;s 
assets will be invested in municipal securities that, at the time of purchase, are rated in the lowest 
quarter of the investment grade spectrum (e.g., rated Baa1 to Baa3 (by Moody&#x2019;s) or BBB+ to BBB- 
(by S&amp;amp;P or Fitch), or an equivalent rating assigned by another nationally recognized statistical 
rating organization, or that are unrated but have been determined by the Advisor to be of comparable 
quality). The fixed income securities in which the Portfolio invests are considered investment grade 
at the time of purchase.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are often issued to obtain funds for 
various public purposes, including the construction of a wide range of public facilities, such as bridges, 
highways, housing, hospitals, mass transportation facilities, schools, streets and public utilities, 
such as water and sewer works. Municipal securities include municipal leases, certificates of participation, 
municipal obligation components and municipal custody receipts. The Portfolio may invest more than 25% 
of its assets in municipal securities issued to finance projects in a particular segment of the bond 
market including, but not limited to, health care, housing, education, utilities, and transportation. 
The Portfolio also may invest more than 25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio may (1) purchase certain municipal securities that are insured, (2) invest in municipal securities 
secured by mortgages on single-family homes and multi-family projects, (3) invest in pre-refunded municipal 
securities, (4) purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; basis, and (5) 
use derivatives, such as fixed income related futures and options contracts, credit default swaps, and 
interest rate swaps, to hedge against changes in interest rates. The Portfolio may also invest in exchange-traded 
funds (ETFs) to gain exposure to the municipal bond market pending investment in municipal bonds. The 
Portfolio may also invest in money market funds. The Portfolio also may purchase or sell futures contracts 
and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the Portfolio attempts to invest all of its assets in tax-exempt securities, 
it is possible, although not anticipated, that a portion of its assets may be invested in securities 
that pay taxable interest, including interest that may be subject to the federal alternative minimum 
tax. These investments could generate taxable income for shareholders.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_PrincipalRisks2_S000075838Summary80Member"
      id="ixv-88800">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_RiskLoseMoneyMember_S000075838Summary80Member"
      id="ixv-276341">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_RiskNotInsuredMember_S000075838Summary80Member"
      id="ixv-276342">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_MarketRisk2_S000075838Summary80Member"
      id="ixv-88806">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_InterestRateRisk2_S000075838Summary80Member"
      id="ixv-88811">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_CreditRisk2_S000075838Summary80Member"
      id="ixv-88816">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_IncomeRisk2_S000075838Summary80Member"
      id="ixv-88821">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_CallRisk2_S000075838Summary80Member"
      id="ixv-88826">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_TaxLiabilityRisk2_S000075838Summary80Member"
      id="ixv-88831">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_MunicipalSecuritiesRisk2_S000075838Summary80Member"
      id="ixv-88836">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_MunicipalProject-SpecificRisk2_S000075838Summary80Member"
      id="ixv-88844">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive to adverse economic, business or political developments 
if it invests a substantial portion of its assets in municipal securities that finance similar types 
of projects in a segment of the municipal bond market (such as education, health care, housing, education, 
utilities or transportation) or industrial development bonds. A change that affects one project in a 
particular segment of the market, such as proposed legislation on the financing of the project, a shortage 
of the materials needed for the project, or a declining need for the project, would likely affect all 
similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_VariableRateDemandObligationsRisk2_S000075838Summary80Member"
      id="ixv-88849">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_DerivativesRisk2_S000075838Summary80Member"
      id="ixv-88855">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_HighPortfolioTurnoverRisk2_S000075838Summary80Member"
      id="ixv-88859">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; When high portfolio turnover 
(more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities and the reinvestment by 
the fund in other portfolio securities, such high portfolio turnover may result in increased transaction 
costs, including brokerage commissions, dealer mark-ups and other transaction costs. Additionally, the 
sale of a fund&#x2019;s portfolio securities may result in the distribution of higher capital gains as 
compared to a fund with less active trading policies. Alternatively, for fixed income funds, a higher 
portfolio turnover may be in part the result of bonds being held to their maturity, which may have a 
minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_LiquidityRisk2_S000075838Summary80Member"
      id="ixv-88863">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_OperationalRisk2_S000075838Summary80Member"
      id="ixv-88868">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_CyberSecurityRisk2_S000075838Summary80Member"
      id="ixv-88876">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
fund and its service providers&#x2019; use of internet, technology and information systems may expose 
the fund to potential risks linked to cyber security breaches of those technological or information systems. 
Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary 
information, customer data, or fund assets, or cause the fund and/or its service providers to suffer 
data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276343"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-88886">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276344">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276345"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276346">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276347">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276348">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276349">DFA 
Short-Term Selective State Municipal Bond Portfolio&#x2005;Institutional 
Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276350">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276351">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276352"
      unitRef="pure">0.0159</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276353">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276354"
      unitRef="pure">0.0006</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276355">2023-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276356">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276357">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276358"
      unitRef="pure">0.0287</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20220412_20251231_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="_6614_"
      unitRef="pure">0.0247</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276360">Return After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276361"
      unitRef="pure">0.0287</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20220412_20251231_AfterTaxesOnDistributionsMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="_6617_"
      unitRef="pure">0.0247</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      id="ixv-276363">Return After Taxes on Distributions and Sale of Portfolio 
Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276364"
      unitRef="pure">0.0283</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20220412_20251231_AfterTaxesOnDistributionsAndSalesMember_C000235151Member_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="_6620_"
      unitRef="pure">0.0248</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearUSMunicipalSecuritiesIndex3267_S000075838Member_S000075838Summary80Member"
      id="_6621_">ICE BofA 1-3 Year US Municipal 
Securities Index2</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000075838Member_S000075838Summary80Member"
      id="ixv-276367">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearUSMunicipalSecuritiesIndex3268_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276368"
      unitRef="pure">0.0372</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20220412_20251231_ICEBofA1-3YearUSMunicipalSecuritiesIndex3268_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="_6624_"
      unitRef="pure">0.0277</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3269_S000075838Member_S000075838Summary80Member"
      id="ixv-276370">S&amp;P 
National AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3270_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="ixv-276371"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20220412_20251231_SPNationalAMT-FreeMunicipalBondIndex3270_S000075838Member_S000075838Summary80Member"
      decimals="INF"
      id="_6628_"
      unitRef="pure">0.0271</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276373"> DFA California Short-Term 
Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276374"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89206">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA California Short-Term Municipal Bond Portfolio (the &#x201c;California 
Short-Term Municipal Bond Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to provide current 
income that is expected to be exempt from federal personal income taxes and California state personal 
income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276375"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89213">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276376">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276377">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276378"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276379"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276380"
      unitRef="pure">0.0020</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="_6639_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276382"
      unitRef="pure">0.0019</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276383">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89296">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276384"
      unitRef="usd">19</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276385"
      unitRef="usd">19</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276386"
      unitRef="usd">63</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276387"
      unitRef="usd">63</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276388"
      unitRef="usd">112</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276389"
      unitRef="usd">112</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276390"
      unitRef="usd">112</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276391"
      unitRef="usd">254</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276392"
      unitRef="usd">254</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276393"
      unitRef="usd">254</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276394">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89323">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;153%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276395"
      unitRef="pure">1.53</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276396"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89336">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
California Short-Term Municipal Bond Portfolio seeks its investment objective by investing primarily 
in a universe of municipal securities issued by or on behalf of California state or local governments 
and their agencies, instrumentalities and regional governmental authorities, the interest on which is 
exempt from regular federal income tax and the state personal income tax of California. The Portfolio 
may also invest a portion of its assets in municipal securities issued by U.S. territories that are exempt 
from state taxation under federal law. Municipal securities in which the Portfolio may invest include, 
among others, revenue bonds, general obligation bonds, industrial development bonds, municipal lease 
obligations, commercial paper, variable rate demand obligations and other instruments (including participation 
interests in such securities). The Portfolio intends to invest in municipal securities that in the opinion 
of bond counsel for the issuers and under current tax law provide interest that is exempt from California 
and federal personal income taxes. As a fundamental investment policy, under normal market conditions, 
the Portfolio will invest at least 80% of its net assets in municipal securities that pay interest exempt 
from federal personal income tax and the California state personal income taxes. The Portfolio does not 
currently intend to invest its assets in municipal securities whose interest is subject to the federal 
alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the California Short-Term Municipal Bond Portfolio 
will acquire obligations that mature within three years from the date of settlement, but substantial 
investments may be made in obligations maturing up to ten years from the date of settlement when greater 
expected returns are available, and in variable rate demand obligations with longer maturities. Under 
normal circumstances, the Portfolio will maintain a weighted average effective maturity of three years 
or less. The effective maturity adjusts the stated final maturity of a fixed income security for an actual 
or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, coupon or interest 
rate reset, or other similar event. In making purchase decisions, if the expected term premium is greater 
for longer-term securities in the eligible maturity range, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) 
will focus investment in that longer-term area, otherwise, the portfolio will focus investment in the 
shorter-term area of the eligible maturity range. The Portfolio intends to maintain a dollar-weighted 
average credit quality equal to or better than the lower of: (i)&#160;a credit quality rating of AA by 
S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aa2 by 
Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or (ii)&#160;the credit quality of general obligation 
bonds issued by the state of California. For purposes of the above policy on dollar-weighted average 
credit quality, unrated securities may be included if such securities have been determined by the Advisor 
to be of comparable quality. If a security has been or is expected to be redeemed by the issuer at a 
date prior to the stated final maturity date for the purposes of the above maturity restriction, the 
early redemption date shall be considered the maturity date regardless of the stated final maturity. 
If a security's coupon or interest rate is periodically reset, the reset date will be considered for 
the purposes of the above duration restriction.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are 
often issued to obtain funds for various public purposes, including the construction of a wide range 
of public facilities, such as bridges, highways, housing, hospitals, mass transportation facilities, 
schools, streets and public utilities, such as water and sewer works. Municipal securities include municipal 
leases, certificates of participation, municipal obligation components and municipal custody receipts. 
The California Short-Term Municipal Bond Portfolio may invest more than 25% of its assets in municipal 
securities issued to finance projects in a particular segment of the bond market including, but not limited 
to, health care, housing, education, utilities, and transportation. The Portfolio also may invest more 
than 25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Short-Term 
Municipal Bond Portfolio may (1)&#160;purchase certain municipal securities that are insured, (2)&#160;invest 
in municipal securities secured by mortgages on single-family homes and multi-family projects, (3)&#160;invest 
in pre-refunded municipal securities, (4)&#160;purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; 
basis and (5)&#160;use derivatives, such as fixed income related futures and options contracts, credit 
default swaps, and interest rate swaps, to hedge against changes in interest rates. The Portfolio may 
also invest in exchange-traded funds (ETFs) to gain exposure to the municipal bond market pending investment 
in municipal bonds. The Portfolio may also invest in money market funds. The Portfolio also may purchase 
or sell futures contracts and options on futures contracts, to hedge its interest rate exposure or for 
non-hedging purposes, such as a substitute for direct investment or to increase or decrease market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although 
the California Short-Term Municipal Bond Portfolio attempts to invest all of its assets in tax-exempt 
securities, it is possible, although not anticipated, that a portion of its assets may be invested in 
securities that pay taxable interest, including interest that may be subject to the federal alternative 
minimum tax. These investments could generate taxable income for shareholders.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Short-Term Municipal Bond Portfolio is primarily designed for investment 
by California taxpayers.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_PrincipalRisks2_S000016731Summary81Member"
      id="ixv-89347">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x75x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_RiskLoseMoneyMember_S000016731Summary81Member"
      id="ixv-276397">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_RiskNotInsuredMember_S000016731Summary81Member"
      id="ixv-276398">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_MarketRisk2_S000016731Summary81Member"
      id="ixv-89353">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_InterestRateRisk2_S000016731Summary81Member"
      id="ixv-89358">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_CreditRisk2_S000016731Summary81Member"
      id="ixv-89363">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security, including a governmental 
entity, may be unable to make interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s 
credit rating or a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s 
value, and thus, impact the performance of a fund holding such securities. The ability of a municipal 
securities issuer to make payments could be affected by litigation, legislation or other political events 
or the bankruptcy of the issuer. Credit risk is greater for fixed income securities with ratings below 
investment grade (e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s). Fixed income 
securities that are below investment grade involve high credit risk and are considered speculative. Below 
investment grade fixed income securities may also fluctuate in value more than higher quality fixed income 
securities and, during periods of market volatility, may be more difficult to sell at the time and price 
the Portfolio desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_IncomeRisk2_S000016731Summary81Member"
      id="ixv-89368">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_CallRisk2_S000016731Summary81Member"
      id="ixv-89373">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_TaxLiabilityRisk2_S000016731Summary81Member"
      id="ixv-89378">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_MunicipalSecuritiesRisk2_S000016731Summary81Member"
      id="ixv-89383">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_MunicipalProject-SpecificRisk2_S000016731Summary81Member"
      id="ixv-89391">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive to adverse economic, business or political developments 
if it invests a substantial portion of its assets in municipal securities that finance similar types 
of projects in a segment of the municipal bond market (such as education, health care, housing, education, 
utilities or transportation) or industrial development bonds. A change that affects one project in a 
particular segment of the market, such as proposed legislation on the financing of the project, a shortage 
of the materials needed for the project, or a declining need for the project, would likely affect all 
similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_State-SpecificRisk2_S000016731Summary81Member"
      id="ixv-89396">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its investments primarily in California 
municipal securities will be highly sensitive to events affecting the fiscal stability of the State of 
California and its agencies, municipalities, authorities and other instrumentalities that issue securities. 
Having a significant percentage of its assets invested in the securities of fewer issuers, particularly 
obligations of government issuers of a single state, could result in greater credit risk exposure to 
a smaller number of issuers due to economic, regulatory or political problems in California.  These issues 
may include economic or political policy changes, tax base erosion, unfunded pension and healthcare liabilities, 
state constitutional limits on tax increases, natural disasters or environmental issues (including drought 
and wildfires), budget deficits and other financial difficulties, and changes in the credit ratings assigned 
to municipal issuers of California. Also, to the extent that a fund makes significant investments in 
securities issued to finance projects in a particular segment of the California municipal securities 
market such focused investment may cause the value of the fund&#x2019;s shares to change more than the 
value of shares of funds that invest more broadly. These risks are disclosed in more detail in the Portfolio&#x2019;s 
Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_VariableRateDemandObligationsRisk2_S000016731Summary81Member"
      id="ixv-89401">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable Rate Demand Obligations 
Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_DerivativesRisk2_S000016731Summary81Member"
      id="ixv-89407">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_HighPortfolioTurnoverRisk2_S000016731Summary81Member"
      id="ixv-89411">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; When high portfolio turnover 
(more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities and the reinvestment by 
the fund in other portfolio securities, such high portfolio turnover may result in increased transaction 
costs, including brokerage commissions, dealer mark-ups and other transaction costs. Additionally, the 
sale of a fund&#x2019;s portfolio securities may result in the distribution of higher capital gains as 
compared to a fund with less active trading policies. Alternatively, for fixed income funds, a higher 
portfolio turnover may be in part the result of bonds being held to their maturity, which may have a 
minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_LiquidityRisk2_S000016731Summary81Member"
      id="ixv-89415">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;developments. Liquidity risk includes the risk that a fund will experience significant 
net redemptions at a time when it cannot find willing buyers for its portfolio securities or can only 
sell its portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced 
in periods of market turmoil or in situations where ownership of shares of a fund are concentrated in 
one or a few investors. Investments that are illiquid or that trade in lower volumes may be more difficult 
to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_OperationalRisk2_S000016731Summary81Member"
      id="ixv-89425">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_CyberSecurityRisk2_S000016731Summary81Member"
      id="ixv-89430">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276399"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-89440">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276400">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276401"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276402">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276403">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276404">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276405">DFA 
California Short-Term Municipal Bond Portfolio&#x2005;Institutional 
Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276406">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276407">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276408"
      unitRef="pure">0.0135</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276409">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276410"
      unitRef="pure">-0.0120</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276411">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276412">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276413">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276414"
      unitRef="pure">0.0296</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276415"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276416"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276417">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276418"
      unitRef="pure">0.0296</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276419"
      unitRef="pure">0.0151</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276420"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      id="ixv-276421">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276422"
      unitRef="pure">0.0283</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276423"
      unitRef="pure">0.0154</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000046747Member_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276424"
      unitRef="pure">0.0124</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearCaliforniaincludingPuertoRicoMunicipalSecuritiesIndex3272_S000016731Member_S000016731Summary81Member"
      id="_6717_">ICE BofA 1-3 Year California 
including Puerto Rico Municipal Securities Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000016731Member_S000016731Summary81Member"
      id="ixv-276426">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearCaliforniaincludingPuertoRicoMunicipalSecuritiesIndex3273_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276427"
      unitRef="pure">0.0357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearCaliforniaincludingPuertoRicoMunicipalSecuritiesIndex3273_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276428"
      unitRef="pure">0.0142</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearCaliforniaincludingPuertoRicoMunicipalSecuritiesIndex3273_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276429"
      unitRef="pure">0.0142</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3274_S000016731Member_S000016731Summary81Member"
      id="ixv-276430">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3275_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276431"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3275_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276432"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3275_S000016731Member_S000016731Summary81Member"
      decimals="INF"
      id="ixv-276433"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276434"> DFA California Intermediate-Term 
Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276435"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89786">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA California Intermediate-Term Municipal Bond Portfolio (the &#x201c;California 
Intermediate-Term Municipal Bond Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to provide 
current income that is expected to be exempt from federal personal income taxes and California state 
personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276436"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89793">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276437">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276438">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276439"
      unitRef="pure">0.0016</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276440"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276441"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276442">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89852">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276443"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276444"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276445"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276446"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276447"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276448"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276449"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276450"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276451"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276452"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276453">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89879">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;71%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276454"
      unitRef="pure">0.71</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276455"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89889">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The California Intermediate-Term Municipal Bond Portfolio 
seeks its investment objective by investing primarily in a universe of municipal securities issued by 
or on behalf of California state or local governments and their agencies, instrumentalities and regional 
governmental authorities, the interest on which is exempt from regular federal income tax and the state 
personal income tax of California. The Portfolio may also invest a portion of its assets in municipal 
securities issued by U.S. territories that are exempt from state taxation under federal law. Municipal 
securities in which the Portfolio may invest include, among others, revenue bonds, general obligation 
bonds, industrial development bonds, municipal lease obligations, commercial paper, variable rate demand 
obligations and other &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;instruments (including participation interests in such securities). The Portfolio 
intends to invest in municipal securities that in the opinion of bond counsel for the issuers and under 
current tax law provide interest that is exempt from California and federal personal income taxes. As 
a fundamental investment policy, under normal market conditions, the Portfolio will invest at least 80% 
of its net assets in municipal securities that pay interest exempt from federal personal income tax and 
California state personal income taxes. The Portfolio does not currently intend to invest its assets 
in municipal securities whose interest is subject to the federal alternative minimum tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, 
the California Intermediate-Term Municipal Bond Portfolio will acquire obligations that mature more than 
three years from the date of settlement. Under normal circumstances, the Portfolio will generally maintain 
a weighted average duration of no more than one half year greater than, and no less than one year below, 
the weighted average duration of the S&amp;amp;P Intermediate Term California AMT-Free Municipal Bond Index, 
which was approximately 5.05 years as of December 31, 2025. From time to time, the Portfolio may deviate 
from this duration range when Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) determines it 
to be appropriate under the circumstances. In any event, the Portfolio will maintain a weighted average 
effective maturity of more than three years but less than ten years. The effective maturity adjusts the 
stated final maturity of a fixed income security for an actual or expected event such as a call, put, 
tender, mandatory early redemption, pre-refunding, coupon or interest rate reset, or other similar event. 
The Portfolio intends to maintain a dollar-weighted average credit quality equal to or better than the 
lower of: (i) a credit quality rating of AA by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch 
Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aa2 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or (ii) 
the credit quality of general obligation bonds issued by the state of California. For purposes of the 
above policy on dollar-weighted average credit quality, unrated securities may be included if such securities 
have been determined by the Advisor to be of comparable quality. If a security has been or is expected 
to be redeemed by the issuer at a date prior to the stated final maturity date for the purposes of the 
above duration and maturity restrictions, the early redemption date shall be considered the maturity 
date regardless of the stated final maturity. If a security's coupon or interest rate is periodically 
reset, the reset date will be considered for the purposes of the above duration restriction. Duration 
is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The longer 
a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The California Intermediate-Term Municipal Bond Portfolio may invest more than 25% 
of its assets in municipal securities issued to finance projects in a particular segment of the bond 
market including, but not limited to, health care, housing, education, utilities, and transportation. 
The Portfolio also may invest more than 25% of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
California Intermediate-Term Municipal Bond Portfolio may (1) purchase certain municipal securities that 
are insured, (2) invest in municipal securities secured by mortgages on single-family homes and multi-family 
projects, (3) invest in pre-refunded municipal securities, (4) purchase tax-exempt municipal securities 
on a &#x201c;when-issued&#x201d; basis and (5) use derivatives, such as fixed income related futures and 
options contracts, credit default swaps and interest rate swaps, to hedge against changes in interest 
rates. The Portfolio may also invest in exchange-traded funds (ETFs) to gain exposure to the municipal 
bond market pending investment in municipal bonds. The Portfolio may also invest in money market funds. 
The Portfolio also may purchase or sell futures contracts and options on futures contracts, to hedge 
its interest rate exposure or for non-hedging purposes, such as a substitute for direct investment or 
to increase or decrease market exposure based on actual or expected cash inflows to or outflows from 
the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the California Intermediate-Term Municipal Bond Portfolio attempts to 
invest all of its assets in tax-exempt securities, it is possible, although not anticipated, that a portion 
of its assets may be invested in securities that pay taxable interest, including interest that may be 
subject to the federal alternative minimum tax. These investments could generate taxable income for shareholders.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
California Intermediate-Term Municipal Bond Portfolio is primarily designed for investment by California 
taxpayers.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_PrincipalRisks2_S000031489Summary82Member"
      id="ixv-89904">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x85x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_RiskLoseMoneyMember_S000031489Summary82Member"
      id="ixv-276456">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_RiskNotInsuredMember_S000031489Summary82Member"
      id="ixv-276457">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_MarketRisk2_S000031489Summary82Member"
      id="ixv-89910">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_InterestRateRisk2_S000031489Summary82Member"
      id="ixv-89915">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_CreditRisk2_S000031489Summary82Member"
      id="ixv-89920">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, including a governmental entity, may be unable to make 
interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or 
a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, 
impact the performance of a fund holding such securities. The ability of a municipal securities issuer 
to make payments could be affected by litigation, legislation or other political events or the bankruptcy 
of the issuer. Credit risk is greater for fixed income securities with ratings below investment grade 
(e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s). Fixed income securities that 
are below investment grade involve high credit risk and are considered speculative. Below investment 
grade fixed income securities may also fluctuate in value more than higher quality fixed income securities 
and, during periods of market volatility, may be more difficult to sell at the time and price the Portfolio 
desires.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_IncomeRisk2_S000031489Summary82Member"
      id="ixv-89925">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_CallRisk2_S000031489Summary82Member"
      id="ixv-89930">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_TaxLiabilityRisk2_S000031489Summary82Member"
      id="ixv-89935">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_MunicipalSecuritiesRisk2_S000031489Summary82Member"
      id="ixv-89940">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_MunicipalProject-SpecificRisk2_S000031489Summary82Member"
      id="ixv-89945">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
may be more sensitive to adverse economic, business or political developments if it invests a substantial 
portion of its assets in municipal securities that finance similar types of &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;projects in a segment of the municipal bond market (such as education, health 
care, housing, education, utilities or transportation) or industrial development bonds. A change that 
affects one project in a particular segment of the market, such as proposed legislation on the financing 
of the project, a shortage of the materials needed for the project, or a declining need for the project, 
would likely affect all similar projects, thereby increasing market risk.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_State-SpecificRisk2_S000031489Summary82Member"
      id="ixv-89955">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its 
investments primarily in California municipal securities will be highly sensitive to events affecting 
the fiscal stability of the State of California and its agencies, municipalities, authorities and other 
instrumentalities that issue securities. Having a significant percentage of its assets invested in the 
securities of fewer issuers, particularly obligations of government issuers of a single state, could 
result in greater credit risk exposure to a smaller number of issuers due to economic, regulatory or 
political problems in California.  These issues may include economic or political policy changes, tax 
base erosion, unfunded pension and healthcare liabilities, state constitutional limits on tax increases, 
natural disasters or environmental issues (including drought and wildfires), budget deficits and other 
financial difficulties, and changes in the credit ratings assigned to municipal issuers of California. 
Also, to the extent that a fund makes significant investments in securities issued to finance projects 
in a particular segment of the California municipal securities market such focused investment may cause 
the value of the fund&#x2019;s shares to change more than the value of shares of funds that invest more 
broadly. These risks are disclosed in more detail in the Portfolio&#x2019;s Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_VariableRateDemandObligationsRisk2_S000031489Summary82Member"
      id="ixv-89960">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_DerivativesRisk2_S000031489Summary82Member"
      id="ixv-89966">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_LiquidityRisk2_S000031489Summary82Member"
      id="ixv-89970">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_OperationalRisk2_S000031489Summary82Member"
      id="ixv-89975">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_CyberSecurityRisk2_S000031489Summary82Member"
      id="ixv-89985">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276458"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-89995">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276459">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276460"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276461">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276462">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276463">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276464">DFA 
California Intermediate-Term Municipal Bond Portfolio&#x2005;Institutional 
Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276465">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276466">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276467"
      unitRef="pure">0.0498</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276468">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276469"
      unitRef="pure">-0.0395</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276470">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276471">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276472">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276473"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276474"
      unitRef="pure">0.0083</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276475"
      unitRef="pure">0.0143</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276476">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276477"
      unitRef="pure">0.0370</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276478"
      unitRef="pure">0.0083</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276479"
      unitRef="pure">0.0143</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      id="ixv-276480">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276481"
      unitRef="pure">0.0321</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276482"
      unitRef="pure">0.0102</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000097894Member_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276483"
      unitRef="pure">0.0145</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3277_S000031489Member_S000031489Summary82Member"
      id="ixv-276484">S&amp;P Intermediate Term California 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000031489Member_S000031489Summary82Member"
      id="ixv-276485">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3278_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276486"
      unitRef="pure">0.0459</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3278_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276487"
      unitRef="pure">0.0109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPIntermediateTermCaliforniaAMT-FreeMunicipalBondIndex3278_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276488"
      unitRef="pure">0.0207</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3279_S000031489Member_S000031489Summary82Member"
      id="ixv-276489">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3280_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276490"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3280_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276491"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3280_S000031489Member_S000031489Summary82Member"
      decimals="INF"
      id="ixv-276492"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276493"> DFA MN Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276494"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90330">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA MN Municipal Bond Portfolio (the &#x201c;MN Municipal Bond Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to provide current income that is expected to be exempt from 
federal personal income taxes and Minnesota state personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276495"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90337">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276496">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276497">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276498"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276499"
      unitRef="pure">0.0020</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276500"
      unitRef="pure">0.0045</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6832_"
      unitRef="pure">-0.0015</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276502"
      unitRef="pure">0.0030</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276503">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90420">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276504"
      unitRef="usd">31</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276505"
      unitRef="usd">31</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276506"
      unitRef="usd">129</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276507"
      unitRef="usd">129</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276508"
      unitRef="usd">237</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276509"
      unitRef="usd">237</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276510"
      unitRef="usd">237</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276511"
      unitRef="usd">552</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276512"
      unitRef="usd">552</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276513"
      unitRef="usd">552</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276514">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90447">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;42%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276515"
      unitRef="pure">0.42</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276516"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90460">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
MN Municipal Bond Portfolio seeks its investment objective by investing primarily in a universe of municipal 
securities issued by or on behalf of Minnesota state or local governments and their agencies, instrumentalities 
and regional governmental authorities, the interest on which is exempt from regular federal income tax 
and the state personal income tax of Minnesota. Municipal securities in which the Portfolio may invest 
include, among others, revenue bonds, general obligation bonds, industrial development bonds, municipal 
lease obligations, commercial paper, variable rate demand obligations and other instruments (including 
participation interests in such securities). The Portfolio invests in municipal and other fixed income 
securities that have an investment grade credit rating (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings 
(&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings 
(&#x201c;Moody&#x2019;s&#x201d;) or an equivalent rating assigned by another nationally recognized statistical 
rating organization, or that are unrated but have been determined by Dimensional Fund Advisors LP (the 
&#x201c;Advisor&#x201d;) to be of comparable quality).&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The MN Municipal Bond 
Portfolio intends to invest in municipal securities that in the opinion of bond counsel for the issuers 
and under current tax law provide interest that is exempt from Minnesota state and federal personal income 
taxes. The Portfolio is required, and intends, to derive at least 95% of its exempt-interest dividends 
from interest on Minnesota municipal securities in order for any of its income to be exempt from Minnesota 
state personal income tax. As a fundamental investment policy, under normal market conditions, the Portfolio 
will invest at least 80% of its net assets in municipal securities that pay interest exempt from federal 
personal income tax and the Minnesota state personal income tax. The Portfolio does not currently intend 
to invest its assets in municipal securities whose interest is subject to the federal alternative minimum 
tax.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the MN Municipal Bond Portfolio will acquire obligations that mature 
within twenty years from the date of settlement, and in variable rate demand obligations with longer 
maturities. Under normal circumstances, the Portfolio will maintain a weighted average duration of no 
greater than six years. If a security has been or is expected to be redeemed by the issuer at a date 
prior to the stated final maturity date for the purposes of the above duration restriction, the early 
redemption date shall be considered the maturity date regardless of the stated final maturity. If a security's 
coupon or interest rate is periodically reset, the reset date will be considered for the purposes of 
the above duration restriction. From time to time, the Portfolio may deviate from this average duration 
when the Advisor determines it to be appropriate under the circumstances. Duration is a measure of the 
sensitivity of a security&#x2019;s price to changes in interest rates. The longer a security&#x2019;s duration, 
the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Municipal securities are 
often issued to obtain funds for various public purposes, including the construction of a wide range 
of public facilities, such as bridges, highways, housing, hospitals, mass transportation facilities, 
schools, streets and public utilities, such as water and sewer works. Municipal securities include municipal 
leases, certificates of participation, municipal obligation components and municipal custody receipts. 
The MN Municipal Bond Portfolio may invest more than 25% of its assets in municipal securities issued 
to finance projects in a particular segment of the bond market including, but not limited to, health 
care, housing, education, utilities, and transportation. The Portfolio also may invest more than 25% 
of its assets in industrial development bonds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The MN Municipal Bond Portfolio 
may (1) purchase certain municipal securities that are insured, (2) invest in municipal securities secured 
by mortgages on single-family homes and multi-family projects, (3) invest in pre-refunded municipal securities, 
(4) purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; basis and (5) use derivatives, 
such as fixed income related futures and options contracts, credit default swaps and interest rate swaps, 
to hedge against changes in interest rates. The Portfolio may also invest in exchange-traded funds (ETFs) 
to gain exposure to the municipal bond market pending investment in municipal bonds. The Portfolio may 
also invest in money market funds. The Portfolio also may purchase or sell futures contracts and options 
on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, such as a substitute 
for direct investment or to increase or decrease market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Although the MN Municipal Bond Portfolio attempts to invest 
all of its assets in tax-exempt securities, it is possible, although not anticipated, that a portion 
of its assets may be invested in securities that pay taxable interest, including interest that may be 
subject to the federal alternative minimum tax. These investments could generate taxable income for shareholders.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
MN Municipal Bond Portfolio is primarily designed for investment by Minnesota tax payers.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The MN Municipal Bond Portfolio is &#x201c;non-diversified,&#x201d; which means 
that the Portfolio may invest its assets in a smaller number of issuers than a diversified fund.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_PrincipalRisks2_S000058180Summary83Member"
      id="ixv-90473">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x95x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_RiskLoseMoneyMember_S000058180Summary83Member"
      id="ixv-276517">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_RiskNotInsuredMember_S000058180Summary83Member"
      id="ixv-276518">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_MarketRisk2_S000058180Summary83Member"
      id="ixv-90479">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_InterestRateRisk2_S000058180Summary83Member"
      id="ixv-90484">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_Non-DiversificationRisk2_S000058180Summary83Member"
      id="ixv-90489">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Non-Diversification Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that a fund may be more volatile than a diversified fund because a fund 
invests its assets in a smaller number of issuers. The gains or losses on a single security, therefore, 
may have a greater impact on a fund&#x2019;s net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_CreditRisk2_S000058180Summary83Member"
      id="ixv-90494">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit 
Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security, including 
a governmental entity, may be unable to make interest payments and/or repay principal when due. A downgrade 
to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength may 
affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
The ability of a municipal securities issuer to make payments could be affected by litigation, legislation 
or other political events or the bankruptcy of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_IncomeRisk2_S000058180Summary83Member"
      id="ixv-90499">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_CallRisk2_S000058180Summary83Member"
      id="ixv-90504">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_TaxLiabilityRisk2_S000058180Summary83Member"
      id="ixv-90509">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_MunicipalSecuritiesRisk2_S000058180Summary83Member"
      id="ixv-90514">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_MunicipalProject-SpecificRisk2_S000058180Summary83Member"
      id="ixv-90522">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive to adverse economic, business or political developments 
if it invests a substantial portion of its assets in municipal securities that finance similar types 
of projects in a segment of the municipal bond market (such as education, health care, housing, education, 
utilities or transportation) or industrial development bonds. A change that affects one project in a 
particular segment of the market, such as proposed legislation on the financing of the project, a shortage 
of the materials needed for the project, or a declining need for the project, would likely affect all 
similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_State-SpecificRisk2_S000058180Summary83Member"
      id="ixv-90527">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its investments primarily in Minnesota 
municipal securities will be highly sensitive to events affecting the fiscal stability of the State of 
Minnesota and its agencies, municipalities, authorities and other instrumentalities that issue securities. 
Having a significant percentage of its assets invested in the securities of fewer issuers, particularly 
obligations of government issuers of a single state, could result in greater credit risk exposure to 
a smaller number of issuers due to economic, regulatory or political problems in Minnesota. Also, to 
the extent that a fund makes significant investments in securities issued to finance projects in a particular 
segment of the Minnesota municipal securities market such focused investment may cause the value of the 
fund&#x2019;s shares to change more than the value of shares of funds that invest more broadly. These 
risks are disclosed in more detail in the Portfolio&#x2019;s Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_VariableRateDemandObligationsRisk2_S000058180Summary83Member"
      id="ixv-90532">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_DerivativesRisk2_S000058180Summary83Member"
      id="ixv-90538">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_LiquidityRisk2_S000058180Summary83Member"
      id="ixv-90542">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_OperationalRisk2_S000058180Summary83Member"
      id="ixv-90547">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_CyberSecurityRisk2_S000058180Summary83Member"
      id="ixv-90557">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276519"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-90567">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276520">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276521"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276522">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276523">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276524">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276525">DFA 
MN Municipal Bond Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276526">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276527">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276528"
      unitRef="pure">0.0215</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276529">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276530"
      unitRef="pure">-0.0221</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276531">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276532">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276533">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276534"
      unitRef="pure">0.0284</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276535"
      unitRef="pure">0.0106</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170725_20251231_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6899_"
      unitRef="pure">0.0125</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276537">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276538"
      unitRef="pure">0.0284</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276539"
      unitRef="pure">0.0106</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170725_20251231_AfterTaxesOnDistributionsMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6903_"
      unitRef="pure">0.0123</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      id="ixv-276541">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276542"
      unitRef="pure">0.0267</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276543"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170725_20251231_AfterTaxesOnDistributionsAndSalesMember_C000190799Member_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6907_"
      unitRef="pure">0.0127</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3281_S000058180Member_S000058180Summary83Member"
      id="ixv-276545">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000058180Member_S000058180Summary83Member"
      id="ixv-276546">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3282_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276547"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3282_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276548"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170725_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3282_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6912_"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3283_S000058180Member_S000058180Summary83Member"
      id="ixv-276550">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3284_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276551"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3284_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="ixv-276552"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170725_20251231_SPNationalAMT-FreeMunicipalBondIndex3284_S000058180Member_S000058180Summary83Member"
      decimals="INF"
      id="_6917_"
      unitRef="pure">0.0219</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276554"> DFA NY Municipal Bond Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276555"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-90931">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA NY Municipal Bond Portfolio (the &#x201c;NY Municipal Bond Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to provide current income that is expected to be exempt from 
federal personal income taxes and New York state personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276556"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-90938">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276557">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276558">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276559"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276560"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276561"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="_6928_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276563"
      unitRef="pure">0.0025</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276564">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-91021">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276565"
      unitRef="usd">26</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276566"
      unitRef="usd">26</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276567"
      unitRef="usd">85</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276568"
      unitRef="usd">85</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276569"
      unitRef="usd">150</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276570"
      unitRef="usd">150</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276571"
      unitRef="usd">150</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276572"
      unitRef="usd">341</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276573"
      unitRef="usd">341</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276574"
      unitRef="usd">341</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276575">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-91048">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;156%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276576"
      unitRef="pure">1.56</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276577"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-91061">&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
NY Municipal Bond Portfolio seeks its investment objective by investing primarily in a universe of municipal 
securities issued by or on behalf of New York state or local governments and their agencies, instrumentalities 
and regional governmental authorities. The Portfolio may also invest a portion of its assets in municipal 
securities issued by U.S. territories that are exempt from state taxation under federal law. Municipal 
securities in which the Portfolio may invest include, among others, revenue bonds, general obligation 
bonds, industrial development bonds, municipal lease obligations, commercial paper, variable rate demand 
obligations and other instruments (including participation interests in such securities). The Portfolio 
intends to invest in municipal securities that, in the opinion of bond counsel for the issuers and under 
current tax law, provide interest that is exempt from New&#160;York state and federal personal income 
taxes. As a fundamental investment policy, under normal market conditions, the Portfolio will invest 
at least 80% of its net assets in municipal securities that pay interest exempt from New York state and 
federal personal income taxes. The Portfolio does not currently intend to invest its assets in municipal 
securities whose interest is subject to the federal alternative minimum tax.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, 
the NY Municipal Bond Portfolio will maintain a maximum weighted average duration of five years. The 
Portfolio intends to maintain a dollar-weighted average credit quality equal to or better than the lower 
of: (i) a credit quality rating of AA by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings 
Ltd. (&#x201c;Fitch&#x201d;) or Aa2 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or (ii) the 
credit quality of general obligation bonds issued by the state of New York. For purposes of the above 
policy on dollar-weighted average credit quality, unrated securities may be included if such securities 
have been determined by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) to be of comparable 
quality. If a security has been or is expected to be redeemed by the issuer at a date prior to the stated 
final maturity date for the purposes of the above duration restriction, the early redemption date shall 
be considered the maturity date regardless of the stated final maturity. If a security's coupon or interest 
rate is periodically reset, the reset date will be considered for the purposes of the above duration 
restriction. Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest 
rates. The longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The NY Municipal Bond Portfolio may invest more than 25% of its assets in municipal 
securities issued to finance projects in a particular segment of the bond market including, but not limited 
to, health care, housing, education, utilities, and transportation. The Portfolio also may invest more 
than 25% of its assets in industrial development bonds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
NY Municipal Bond Portfolio may (1) purchase certain municipal securities that are insured, (2) invest 
in municipal securities secured by mortgages on single-family homes and multi-family projects, (3) invest 
in pre-refunded municipal securities, (4) purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; 
basis and (5)&#160;use derivatives, such as fixed income related futures and options contracts, credit 
default swaps and interest rate swaps, to hedge against changes in interest rates. The Portfolio may 
also invest in exchange-traded funds (ETFs) to gain exposure to the municipal bond market pending investment 
in municipal bonds. The Portfolio may also invest in money market funds. The Portfolio also may purchase 
or sell futures contracts and options on futures contracts, to hedge its interest rate exposure or for 
non-hedging purposes, such as a substitute for direct investment or to increase or decrease market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Although 
the NY Municipal Bond Portfolio attempts to invest all of its assets in tax-exempt securities, it is 
possible, although not anticipated, that a portion of its assets may be invested in securities that pay 
taxable interest, including interest that may be subject to the federal alternative minimum tax. These 
investments could generate taxable income for shareholders.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
NY Municipal Bond Portfolio is primarily designed for investment by New York tax payers.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
NY Municipal Bond Portfolio is &#x201c;non-diversified,&#x201d; which means that the Portfolio may invest 
its assets in a smaller number of issuers than a diversified fund.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_PrincipalRisks2_S000049339Summary84Member"
      id="ixv-91077">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x105x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_RiskLoseMoneyMember_S000049339Summary84Member"
      id="ixv-276578">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_RiskNotInsuredMember_S000049339Summary84Member"
      id="ixv-276579">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_MarketRisk2_S000049339Summary84Member"
      id="ixv-91083">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_InterestRateRisk2_S000049339Summary84Member"
      id="ixv-91088">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_Non-DiversificationRisk2_S000049339Summary84Member"
      id="ixv-91093">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Non-Diversification Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that a fund may be more volatile than a diversified fund because a fund 
invests its assets in a smaller number of issuers. The gains or losses on a single security, therefore, 
may have a greater impact on a fund&#x2019;s net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_CreditRisk2_S000049339Summary84Member"
      id="ixv-91098">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Credit 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Credit risk is the risk that the issuer of a security, including a governmental 
entity, may be unable to make interest payments and/or repay principal when due. A downgrade to an issuer&#x2019;s 
credit rating or a perceived change in an issuer&#x2019;s financial strength may affect a security&#x2019;s 
value, and thus, impact the performance&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of a fund holding such securities&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;. 
The ability of a municipal securities issuer to make payments could be affected by litigation, legislation 
or other political events or the bankruptcy of the issuer.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Credit risk is greater 
for fixed income securities with ratings below investment grade (e.g., BB or below by S&amp;amp;P or Fitch 
or Ba or below by Moody&#x2019;s). Fixed income securities that are below investment grade involve high 
credit risk and are considered speculative. Below investment grade fixed income securities may also fluctuate 
in value more than higher quality fixed income securities and, during periods of market volatility, may 
be more difficult to sell at the desired time and price.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_IncomeRisk2_S000049339Summary84Member"
      id="ixv-91105">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_CallRisk2_S000049339Summary84Member"
      id="ixv-91110">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_TaxLiabilityRisk2_S000049339Summary84Member"
      id="ixv-91115">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_MunicipalSecuritiesRisk2_S000049339Summary84Member"
      id="ixv-91120">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;the sale of a portfolio investment may differ from the fund&#x2019;s valuation 
of the investment, particularly for investments that trade in thin or volatile markets or that are valued 
using a fair valuation methodology.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_MunicipalProject-SpecificRisk2_S000049339Summary84Member"
      id="ixv-91130">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal 
Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive 
to adverse economic, business or political developments if it invests a substantial portion of its assets 
in municipal securities that finance similar types of projects in a segment of the municipal bond market 
(such as education, health care, housing, education, utilities or transportation) or industrial development 
bonds. A change that affects one project in a particular segment of the market, such as proposed legislation 
on the financing of the project, a shortage of the materials needed for the project, or a declining need 
for the project, would likely affect all similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_State-SpecificRisk2_S000049339Summary84Member"
      id="ixv-91135">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its 
investments primarily in New York municipal securities will be highly sensitive to events affecting the 
fiscal stability of the State of New York and its agencies, municipalities, authorities and other instrumentalities 
that issue securities. Having a significant percentage of its assets invested in the securities of fewer 
issuers, particularly obligations of government issuers of a single state, could result in greater credit 
risk exposure to a smaller number of issuers due to economic, regulatory or political problems in New 
York. Also, to the extent that a fund makes significant investments in securities issued to finance projects 
in a particular segment of the New York municipal securities market such focused investment may cause 
the value of the fund&#x2019;s shares to change more than the value of shares of funds that invest more 
broadly. These risks are disclosed in more detail in the Portfolio&#x2019;s Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_VariableRateDemandObligationsRisk2_S000049339Summary84Member"
      id="ixv-91140">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_DerivativesRisk2_S000049339Summary84Member"
      id="ixv-91146">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_HighPortfolioTurnoverRisk2_S000049339Summary84Member"
      id="ixv-91150">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;High Portfolio Turnover Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; When high portfolio turnover 
(more than 100%) is caused by the sale of a fund&#x2019;s portfolio securities and the reinvestment by 
the fund in other portfolio securities, such high portfolio turnover may result in increased transaction 
costs, including brokerage commissions, dealer mark-ups and other transaction costs. Additionally, the 
sale of a fund&#x2019;s portfolio securities may result in the distribution of higher capital gains as 
compared to a fund with less active trading policies. Alternatively, for fixed income funds, a higher 
portfolio turnover may be in part the result of bonds being held to their maturity, which may have a 
minimal impact on transaction costs and taxes.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_LiquidityRisk2_S000049339Summary84Member"
      id="ixv-91154">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;developments. Liquidity risk includes the risk that a fund will experience significant 
net redemptions at a time when it cannot find willing buyers for its portfolio securities or can only 
sell its portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced 
in periods of market turmoil or in situations where ownership of shares of a fund are concentrated in 
one or a few investors. Investments that are illiquid or that trade in lower volumes may be more difficult 
to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_OperationalRisk2_S000049339Summary84Member"
      id="ixv-91164">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_CyberSecurityRisk2_S000049339Summary84Member"
      id="ixv-91169">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276580"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-91179">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276581">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276582"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276583">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276584">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276585">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276586">DFA 
NY Municipal Bond Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276587">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276588">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276589"
      unitRef="pure">0.0156</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276590">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276591"
      unitRef="pure">-0.0146</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276592">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276593">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276594">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276595"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276596"
      unitRef="pure">0.0148</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276597"
      unitRef="pure">0.0145</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276598">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276599"
      unitRef="pure">0.0311</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276600"
      unitRef="pure">0.0148</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276601"
      unitRef="pure">0.0145</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      id="ixv-276602">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276603"
      unitRef="pure">0.0299</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276604"
      unitRef="pure">0.0154</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000156057Member_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276605"
      unitRef="pure">0.0145</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNewYorkAMT-FreeMunicipalBondIndex3285_S000049339Member_S000049339Summary84Member"
      id="ixv-276606">S&amp;P Intermediate Term New York 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000049339Member_S000049339Summary84Member"
      id="ixv-276607">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNewYorkAMT-FreeMunicipalBondIndex3286_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276608"
      unitRef="pure">0.0451</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNewYorkAMT-FreeMunicipalBondIndex3286_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276609"
      unitRef="pure">0.0134</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPIntermediateTermNewYorkAMT-FreeMunicipalBondIndex3286_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276610"
      unitRef="pure">0.0217</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3287_S000049339Member_S000049339Summary84Member"
      id="ixv-276611">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3288_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276612"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3288_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276613"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPNationalAMT-FreeMunicipalBondIndex3288_S000049339Member_S000049339Summary84Member"
      decimals="INF"
      id="ixv-276614"
      unitRef="pure">0.0228</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276615"> DFA Oregon Municipal Bond 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276616"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91514">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Oregon Municipal Bond Portfolio (the &#x201c;Oregon Municipal Bond Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to provide current income that is expected to be exempt from 
federal personal income taxes and Oregon state personal income taxes.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276617"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91521">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276618">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276619">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276620"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276621"
      unitRef="pure">0.0009</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276622"
      unitRef="pure">0.0034</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7027_"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276624"
      unitRef="pure">0.0030</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276625">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91604">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276626"
      unitRef="usd">31</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276627"
      unitRef="usd">31</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276628"
      unitRef="usd">105</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276629"
      unitRef="usd">105</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276630"
      unitRef="usd">187</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276631"
      unitRef="usd">187</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276632"
      unitRef="usd">187</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276633"
      unitRef="usd">427</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276634"
      unitRef="usd">427</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276635"
      unitRef="usd">427</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276636">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91631">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During 
the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;28%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276637"
      unitRef="pure">0.28</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276638"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91644">&lt;p style="-sec-ix-redline:true;font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Oregon Municipal Bond Portfolio seeks its investment objective by investing primarily in a universe of 
municipal securities issued by or on behalf of Oregon state or local governments and their agencies, 
instrumentalities and regional governmental authorities, the interest on which is exempt from regular 
federal income tax and the state personal income tax of Oregon. Municipal securities in which the Portfolio 
may invest include, among others, revenue bonds, general obligation bonds, industrial development bonds, 
municipal lease obligations, commercial paper, variable rate demand obligations and other instruments 
(including participation interests in such securities). The Portfolio invests in municipal and other 
fixed income securities that have an investment grade credit rating (e.g., rated AAA to BBB- by S&amp;amp;P 
Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by 
Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;) or an equivalent rating assigned by another nationally 
recognized statistical rating organization, or that are unrated but have been determined by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) to be of comparable quality).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Oregon Municipal Bond Portfolio intends to invest in municipal securities that in the opinion of bond 
counsel for the issuers and under current tax law provide interest that is exempt from Oregon and federal 
personal income taxes. As a fundamental investment policy, under normal market conditions, the Portfolio 
will invest at least 80% of its net assets in municipal securities that pay interest exempt from federal 
personal income tax and the Oregon state personal income tax. The Portfolio does not currently intend 
to invest its assets in municipal securities whose interest is subject to the federal alternative minimum 
tax.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the Oregon Municipal Bond Portfolio will acquire 
obligations that mature within twenty years from the date of settlement, and in variable rate demand 
obligations with longer maturities. Under normal circumstances, the Portfolio will maintain a weighted 
average duration of no less than three years and no greater than six years. If a security has been or 
is expected to be redeemed by the issuer at a date prior to the stated final maturity date for the purposes 
of the above duration restriction, the early redemption date shall be considered the maturity date regardless 
of the stated final maturity. If a security's coupon or interest rate is periodically reset, the reset 
date will be considered for the purposes of the above duration restriction. From time to time, the Portfolio 
may deviate from this duration range when the Advisor determines it to be appropriate under the circumstances. 
Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The 
longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Municipal 
securities are often issued to obtain funds for various public purposes, including the construction of 
a wide range of public facilities, such as bridges, highways, housing, hospitals, mass transportation 
facilities, schools, streets and public utilities, such as water and sewer works. Municipal securities 
include municipal leases, certificates of participation, municipal obligation components and municipal 
custody receipts. The Oregon Municipal Bond Portfolio may invest more than 25% of its assets in municipal 
securities issued to finance projects in a particular segment of the bond market including, but not limited 
to, health care, housing, education, utilities, and transportation. The Portfolio also may invest more 
than 25% of its assets in industrial development bonds.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Oregon Municipal Bond Portfolio may (1) purchase certain municipal securities that are insured, (2) invest 
in municipal securities secured by mortgages on single-family homes and multi-family projects, (3) invest 
in pre-refunded municipal securities, (4) purchase tax-exempt municipal securities on a &#x201c;when-issued&#x201d; 
basis and (5) use derivatives, such as fixed income related futures and options contracts, credit default 
swaps and interest rate swaps, to hedge against changes in interest rates. The Portfolio may also invest 
in exchange-traded funds (ETFs) to gain exposure to the municipal bond market pending investment in municipal 
bonds. The Portfolio may also invest in money market funds. The Portfolio also may purchase or sell futures 
contracts and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, 
such as a substitute for direct investment or to increase or decrease market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Although 
the Oregon Municipal Bond Portfolio attempts to invest all of its assets in tax-exempt securities, it 
is possible, although not anticipated, that a portion of its assets may be invested in securities that 
pay taxable interest, including interest that may be subject to the federal alternative minimum tax. 
These investments could generate taxable income for shareholders.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:10.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Oregon Municipal Bond Portfolio is primarily designed for investment by Oregon taxpayers.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Oregon Municipal Bond Portfolio is &#x201c;non-diversified,&#x201d; which means 
that the Portfolio may invest its assets in a smaller number of issuers than a diversified fund.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_PrincipalRisks2_S000066100Summary85Member"
      id="ixv-91663">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x115x8"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_RiskLoseMoneyMember_S000066100Summary85Member"
      id="ixv-276639">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_RiskNotInsuredMember_S000066100Summary85Member"
      id="ixv-276640">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_MarketRisk2_S000066100Summary85Member"
      id="ixv-91669">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_InterestRateRisk2_S000066100Summary85Member"
      id="ixv-91674">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_Non-DiversificationRisk2_S000066100Summary85Member"
      id="ixv-91679">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Non-Diversification Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that a fund may be more volatile than a diversified fund because a fund 
invests its assets in a smaller number of issuers. The gains or losses on a single security, therefore, 
may have a greater impact on a fund&#x2019;s net asset value.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_CreditRisk2_S000066100Summary85Member"
      id="ixv-91684">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit 
Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security, including 
a governmental entity, may be unable to make interest payments and/or repay principal when due. A downgrade 
to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength may 
affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
The ability of a municipal securities issuer to make payments could be affected by litigation, legislation 
or other political events or the bankruptcy of the issuer. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_IncomeRisk2_S000066100Summary85Member"
      id="ixv-91689">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause 
a fund&#x2019;s income to decline because, among other reasons, the proceeds from maturing short-term 
securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_CallRisk2_S000066100Summary85Member"
      id="ixv-91694">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_TaxLiabilityRisk2_S000066100Summary85Member"
      id="ixv-91699">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax 
Liability Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Tax liability risk is the 
risk that distributions by a fund become taxable to shareholders due to noncompliant conduct by a municipal 
bond issuer, unfavorable changes in federal or state tax laws, or adverse interpretations of tax laws 
by the Internal Revenue Service or state tax authorities or other factors. Such adverse interpretations 
or actions could cause interest from a security to become taxable, possibly retroactively, subjecting 
shareholders to increased tax liability. In addition, such adverse interpretations or actions could cause 
the value of a security, and therefore, the value of a fund&#x2019;s shares, to decline. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_MunicipalSecuritiesRisk2_S000066100Summary85Member"
      id="ixv-91704">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Securities Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk of a municipal 
security generally depends on the financial and credit status of the issuer. Municipal securities can 
be significantly affected by political, regulatory or economic changes, including changes made in the 
law after issuance of the securities, as well as uncertainties in the municipal market related to taxation, 
legislative changes or the rights of municipal security holders, including in connection with an issuer&#x2019;s 
insolvency. The municipal securities market can be susceptible to increases in volatility and decreases 
in liquidity. The secondary market for certain municipal securities tends to be less well developed or 
liquid than many other securities markets, which may adversely affect a fund's ability to sell such municipal 
securities at attractive prices. Liquidity can decline unpredictably in response to overall economic 
conditions or credit tightening. In addition, there may be less publicly available information about 
the financial condition of municipal security issuers than for issuers of other types of securities, 
making the securities more difficult to value. The price a fund could receive upon the sale of a portfolio 
investment may differ from the fund&#x2019;s valuation of the investment, particularly for investments 
that trade in thin or volatile markets or that are valued using a fair valuation methodology.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_MunicipalProject-SpecificRisk2_S000066100Summary85Member"
      id="ixv-91712">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Municipal Project-Specific Risk&lt;/span&gt;&lt;span style="font-size:9.5pt; font-family:AvenirLT-Roman; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund may be more sensitive to adverse economic, business or political developments 
if it invests a substantial portion of its assets in municipal securities that finance similar types 
of projects in a segment of the municipal bond market (such as education, health care, housing, education, 
utilities or transportation) or industrial development bonds. A change that affects one project in a 
particular segment of the market, such as proposed legislation on the financing of the project, a shortage 
of the materials needed for the project, or a declining need for the project, would likely affect all 
similar projects, thereby increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_State-SpecificRisk2_S000066100Summary85Member"
      id="ixv-91717">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;State-Specific 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that focuses its investments primarily in Oregon municipal 
securities will be highly sensitive to events affecting the fiscal stability of the State of Oregon and 
its agencies, municipalities, authorities and other instrumentalities that issue securities. Having a 
significant percentage of its assets invested in the securities of fewer issuers, particularly obligations 
of government issuers of a single state, could result in greater credit risk exposure to a smaller number 
of issuers due to economic, regulatory or political problems in Oregon. Also, to the extent that a fund 
makes significant investments in securities issued to finance projects in a particular segment of the 
Oregon municipal securities market such focused investment may cause the value of the fund&#x2019;s shares 
to change more than the value of shares of funds that invest more broadly. These risks are disclosed 
in more detail in the Portfolio&#x2019;s Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_VariableRateDemandObligationsRisk2_S000066100Summary85Member"
      id="ixv-91722">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:bold; text-decoration:none;"&gt;Variable 
Rate Demand Obligations Risk:&#160;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;variable 
rate demand obligations (&#x201c;VRDOs&#x201d;) may not have an active secondary market. These VRDOs could 
be difficult to dispose of if the remarketing agent defaults on its payment obligation and/or if the 
fund is not entitled to exercise its demand rights, which could cause a loss with respect to such VRDOs.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_DerivativesRisk2_S000066100Summary85Member"
      id="ixv-91728">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, whose value is derived from that of other assets, 
rates or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, 
credit and management risks, as well as difficulties with respect to valuation. Changes in the value 
of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could 
lose more than the principal amount invested. Additional risks are associated with the use of swaps including 
counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill its 
contractual obligations, whether because of bankruptcy or other default) and liquidity risk (the possible 
lack of a secondary market for the swap agreement). Credit risk increases when a fund is the seller of 
swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, where a fund is 
the seller of swaps, it may be required to liquidate portfolio securities at inopportune times in order 
to meet payment obligations. Swaps may be illiquid or difficult to value. Additionally, payments made 
or received by a fund under such derivatives may increase the amount of distributions taxable to you 
as ordinary income, increase or decrease the amount of capital gain distributions to you and/or decrease 
the amount available for distribution to you as exempt-interest dividends. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_LiquidityRisk2_S000066100Summary85Member"
      id="ixv-91732">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_OperationalRisk2_S000066100Summary85Member"
      id="ixv-91737">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_CyberSecurityRisk2_S000066100Summary85Member"
      id="ixv-91747">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276641"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-91757">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276642">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276643"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276644">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276645">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276646">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276647">DFA 
Oregon Municipal Bond Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276648">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276649">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276650"
      unitRef="pure">0.0417</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276651">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276652"
      unitRef="pure">-0.0392</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276653">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276654">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276655">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276656"
      unitRef="pure">0.0375</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276657"
      unitRef="pure">0.0067</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20190910_20251231_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7092_"
      unitRef="pure">0.0107</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276659">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276660"
      unitRef="pure">0.0375</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276661"
      unitRef="pure">0.0067</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20190910_20251231_AfterTaxesOnDistributionsMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7096_"
      unitRef="pure">0.0107</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      id="ixv-276663">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276664"
      unitRef="pure">0.0316</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276665"
      unitRef="pure">0.0082</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20190910_20251231_AfterTaxesOnDistributionsAndSalesMember_C000213638Member_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7100_"
      unitRef="pure">0.0110</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3289_S000066100Member_S000066100Summary85Member"
      id="ixv-276667">S&amp;P Intermediate Term National 
AMT-Free Municipal Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000066100Member_S000066100Summary85Member"
      id="ixv-276668">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3290_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276669"
      unitRef="pure">0.0465</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3290_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276670"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20190910_20251231_SPIntermediateTermNationalAMT-FreeMunicipalBondIndex3290_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7105_"
      unitRef="pure">0.0174</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPNationalAMT-FreeMunicipalBondIndex3291_S000066100Member_S000066100Summary85Member"
      id="ixv-276672">S&amp;P National AMT-Free Municipal 
Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPNationalAMT-FreeMunicipalBondIndex3292_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276673"
      unitRef="pure">0.0377</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPNationalAMT-FreeMunicipalBondIndex3292_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="ixv-276674"
      unitRef="pure">0.0084</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20190910_20251231_SPNationalAMT-FreeMunicipalBondIndex3292_S000066100Member_S000066100Summary85Member"
      decimals="INF"
      id="_7110_"
      unitRef="pure">0.0150</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276676"> World ex U.S. Targeted Value 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276677"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97302">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the World ex U.S. Targeted Value Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276678"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97309">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276679">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276680">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276681"
      unitRef="pure">0.0040</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276682"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276683"
      unitRef="pure">0.0048</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276684">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97368">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276685"
      unitRef="usd">49</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276686"
      unitRef="usd">49</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276687"
      unitRef="usd">154</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276688"
      unitRef="usd">154</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276689"
      unitRef="usd">269</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276690"
      unitRef="usd">269</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276691"
      unitRef="usd">269</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276692"
      unitRef="usd">604</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276693"
      unitRef="usd">604</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276694"
      unitRef="usd">604</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276695">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97395">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;17%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276696"
      unitRef="pure">0.17</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276697"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97405">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the World ex U.S. Targeted 
Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Targeted Value Portfolio is designed to 
provide exposure to a broad and diverse portfolio of securities of non-U.S. companies, with a focus on 
small and mid-cap lower relative price companies with higher &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;profitability, associated with countries with developed and emerging markets, 
which may include frontier markets (emerging market countries in an earlier stage of development), authorized 
for investment by the Advisor&#x2019;s Investment Committee (&#x201c;Approved Markets&#x201d;). The Portfolio intends 
to invest its assets to gain exposure to at least three different countries, excluding the United States. 
The Portfolio may emphasize certain stocks, including smaller capitalization companies, lower relative 
price stocks, and/or higher profitability stocks as compared to their representation in the small- and 
mid-cap value segments of the Approved Markets in which the Portfolio is authorized to invest. An equity 
issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low 
price in relation to its book value. In assessing relative price, the Advisor may consider additional 
factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have 
high profitability because it has high earnings or profits from operations in relation to its book value 
or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to 
change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;When managing the World ex U.S. Targeted Value Portfolio&#x2019;s 
investment portfolio, the Advisor intends to consider federal tax implications when making investment 
decisions with respect to individual securities to seek to provide a tax advantage. When consistent with 
the Portfolio&#x2019;s investment policies, the Advisor will buy and sell securities for the Portfolio considering 
the goals of: (i) delaying and reducing the realization of net capital gains (e.g., selling stocks with 
capital losses to offset gains, realized or anticipated); and (ii) increasing the extent to which any 
realized net capital gains are long-term in nature (i.e., taxable at lower capital gains tax rates).&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the World ex U.S. Targeted Value Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time to 
time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks 
for opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Targeted Value Portfolio may gain exposure 
to companies associated with approved markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio may purchase 
or sell futures contracts and options on futures contracts for approved market or other equity market 
securities and indices, including those of the United States, to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World ex U.S. Targeted Value Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_PrincipalRisks2_S000038670Summary86Member"
      id="ixv-97417">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x5x9"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_RiskLoseMoneyMember_S000038670Summary86Member"
      id="ixv-276698">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_RiskNotInsuredMember_S000038670Summary86Member"
      id="ixv-276699">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_EquityMarketRisk2_S000038670Summary86Member"
      id="ixv-97423">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_ForeignSecuritiesandCurrenciesRisk2_S000038670Summary86Member"
      id="ixv-97428">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject to uniform accounting, auditing and financial 
reporting standards and there may be less reliable and publicly available financial and other information 
about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising 
shareholder rights, securing dividends and/or interest and obtaining information regarding corporate 
actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments 
in foreign courts than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary 
receipts are generally subject to the same risks as the foreign securities that they evidence or into 
which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly 
unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_SmallandMid-CapCompanyRisk2_S000038670Summary86Member"
      id="ixv-97439">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small 
and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_ValueInvestmentRisk2_S000038670Summary86Member"
      id="ixv-97444">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_ProfitabilityInvestmentRisk2_S000038670Summary86Member"
      id="ixv-97449">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_EmergingMarketsRisk2_S000038670Summary86Member"
      id="ixv-97453">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_ChinaInvestmentsRisk2_S000038670Summary86Member"
      id="ixv-97460">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, Hong Kong, and Taiwan. 
China, Hong Kong, and Taiwan are highly interconnected and interdependent, with relationships built on 
trade, finance, culture, and politics. Despite prior economic and trade reforms and the prior expansion 
of private ownership of companies in certain sectors, the Chinese government still exercises substantial 
influence over many aspects of the private sector and may own or control many companies, including by 
embedding Chinese Communist Party or People&#x2019;s Armed Forces Department personnel in Chinese companies. 
In addition, the Chinese government continues to maintain a major role in economic policy making and 
may alter or discontinue economic or trade reforms at any time. Investing in China involves risks of 
losses due to expropriation, nationalization, confiscation of assets and property, and the imposition 
of restrictions on foreign investments and on repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments 
in China, Hong Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating 
relations with the U.S. as economic and strategic competition between the U.S. and China intensifies, 
which could result in further tariffs, trade restrictions, sanctions, or other actions that adversely 
impact the value of such investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. Certain securities issued by companies located or operating in 
China, such as China A-shares, are also subject to trading restrictions, quota &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;limitations and less market liquidity, which could pose risks to a fund investing 
in such securities. In addition, investments in special structures that utilize contractual arrangements 
to provide exposure to certain Chinese companies, known as variable interest entities (&#x201c;VIEs&#x201d;), that 
operate in sectors in which China restricts and/or prohibits foreign investments may present additional 
risks. The Chinese government&#x2019;s acceptance of the VIE structure is evolving. It is uncertain whether 
Chinese officials and regulators will withdraw their acceptance of the structure generally, or with respect 
to certain industries, or whether Chinese courts or arbitration bodies would decline to enforce the contractual 
rights of foreign investors, each of which would likely have significant, detrimental, and possibly permanent 
losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_TaxAdvantageStrategyRisk2_S000038670Summary86Member"
      id="ixv-97471">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax Advantage 
Strategy Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;An investment strategy that 
considers the tax implications of investment decisions may alter the management of a fund and affect 
portfolio holdings, when compared to other mutual funds that do not take into account potential tax implications. 
The Advisor anticipates that performance of such a fund may deviate from that of mutual funds that do 
not take into account potential tax implications.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_DerivativesRisk2_S000038670Summary86Member"
      id="ixv-97476">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_SecuritiesLendingRisk2_S000038670Summary86Member"
      id="ixv-97480">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_OperationalRisk2_S000038670Summary86Member"
      id="ixv-97484">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_CyberSecurityRisk2_S000038670Summary86Member"
      id="ixv-97489">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276700"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-97499">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276701">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276702"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276703">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276704">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276705">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276706">World 
ex U.S. Targeted Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276707">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276708">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276709"
      unitRef="pure">0.2161</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276710">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276711"
      unitRef="pure">-0.3395</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276712">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276713">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276714">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276715"
      unitRef="pure">0.3965</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276716"
      unitRef="pure">0.1171</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276717"
      unitRef="pure">0.0949</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276718">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276719"
      unitRef="pure">0.3879</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276720"
      unitRef="pure">0.1094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276721"
      unitRef="pure">0.0878</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      id="ixv-276722">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276723"
      unitRef="pure">0.2428</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276724"
      unitRef="pure">0.0932</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119190Member_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276725"
      unitRef="pure">0.0771</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSASMIDValueIndexnetdividends3293_S000038670Member_S000038670Summary86Member"
      id="ixv-276726">MSCI All Country World ex USA SMID 
Value Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000038670Member_S000038670Summary86Member"
      id="ixv-276727">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSASMIDValueIndexnetdividends3294_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276728"
      unitRef="pure">0.3398</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSASMIDValueIndexnetdividends3294_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276729"
      unitRef="pure">0.0950</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSASMIDValueIndexnetdividends3294_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276730"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldexUSAIMIIndexnetdividends3295_S000038670Member_S000038670Summary86Member"
      id="ixv-276731">MSCI All Country World ex USA IMI 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3296_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276732"
      unitRef="pure">0.3196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3296_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276733"
      unitRef="pure">0.0777</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIAllCountryWorldexUSAIMIIndexnetdividends3296_S000038670Member_S000038670Summary86Member"
      decimals="INF"
      id="ixv-276734"
      unitRef="pure">0.0837</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276735"> Dimensional VA U.S. Large Value 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276736"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-99906">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Dimensional VA U.S. Large 
Value Portfolio (&#x201c;VA U.S. Large Value Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276737"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-99913">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses in the table 
do not include any fees or charges imposed by the variable insurance contract. If such fees and charges 
were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276738">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276739">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276740"
      unitRef="pure">0.0019</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276741"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276742"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276743">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-99972">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276744"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276745"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276746"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276747"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276748"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276749"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276750"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276751"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276752"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276753"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276754">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-99999">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;18%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276755"
      unitRef="pure">0.18</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276756"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-100009">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the VA U.S. Large Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP 
(the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA U.S. Large Value Portfolio 
is designed to purchase a broad and diverse group of readily marketable securities of large U.S. companies 
that the Advisor determines to be lower relative price stocks. A company&#x2019;s market &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;capitalization is the number of its shares outstanding times its price per share. 
Under a market capitalization weighted approach, companies with higher market capitalizations generally 
represent a larger proportion of the portfolio than companies with relatively lower market capitalizations. 
The Advisor may overweight certain stocks, including smaller companies, lower relative price stocks and/or 
higher profitability stocks within the large-cap value segment of the U.S. market. An equity issuer is 
considered to have a low relative price (i.e., a value stock) primarily because it has a low price in 
relation to its book value. In assessing relative price, the Advisor may consider additional factors 
such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability 
because it has high earnings or profits from operations in relation to its book value or assets. The 
criteria the Advisor uses for assessing relative price and profitability are subject to change from time 
to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, VA 
U.S. Large Value Portfolio will invest at least 80% of its net assets in securities of large cap U.S. 
companies. As of the date of this Prospectus, for purposes of the Portfolio, the Advisor considers large 
cap companies to be companies whose market capitalizations are generally in the highest 90% of total 
market capitalization or companies whose market capitalizations are larger than or equal to the 1,000th 
largest U.S. company, whichever results in the higher market capitalization break. Total market capitalization 
is based on the market capitalization of eligible U.S. operating companies listed on a securities exchange 
in the United States that is deemed appropriate by the Advisor. Under the Advisor&#x2019;s market capitalization 
guidelines described above, based on market capitalization data as of December 31, 2025, the market capitalization 
of a large cap company would be $16,768 million or above. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the VA U.S. Large Value Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA U.S. Large Value Portfolio 
may purchase or sell futures contracts and options on futures contracts for U.S. equity securities and 
indices to increase or decrease equity market exposure based on actual or expected cash inflows to or 
outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA U.S. Large Value Portfolio may lend its portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_PrincipalRisks2_S000000961Summary87Member"
      id="ixv-100021">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_RiskLoseMoneyMember_S000000961Summary87Member"
      id="ixv-276757">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_RiskNotInsuredMember_S000000961Summary87Member"
      id="ixv-276758">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_EquityMarketRisk2_S000000961Summary87Member"
      id="ixv-100027">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of equity securities, and a fund that owns them, to rise or fall. Stock markets are volatile, with 
periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_ValueInvestmentRisk2_S000000961Summary87Member"
      id="ixv-100032">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_ProfitabilityInvestmentRisk2_S000000961Summary87Member"
      id="ixv-100037">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_DerivativesRisk2_S000000961Summary87Member"
      id="ixv-100041">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_SecuritiesLendingRisk2_S000000961Summary87Member"
      id="ixv-100050">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_OperationalRisk2_S000000961Summary87Member"
      id="ixv-100054">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_CyberSecurityRisk2_S000000961Summary87Member"
      id="ixv-100059">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276759"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-100069">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276760">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276761"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276762">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276763">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276764">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276765">Dimensional 
VA U.S. Large Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276766">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276767">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276768"
      unitRef="pure">0.1843</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276769">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276770"
      unitRef="pure">-0.3169</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276771">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276772">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276773">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276774"
      unitRef="pure">0.1583</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276775"
      unitRef="pure">0.1197</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276776"
      unitRef="pure">0.1051</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276777">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276778"
      unitRef="pure">0.1341</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276779"
      unitRef="pure">0.1010</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276780"
      unitRef="pure">0.0890</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      id="ixv-276781">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276782"
      unitRef="pure">0.1045</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276783"
      unitRef="pure">0.0901</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002712Member_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276784"
      unitRef="pure">0.0803</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000ValueIndex3297_S000000961Member_S000000961Summary87Member"
      id="ixv-276785">Russell 1000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000961Member_S000000961Summary87Member"
      id="ixv-276786">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000ValueIndex3298_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276787"
      unitRef="pure">0.1591</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000ValueIndex3298_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276788"
      unitRef="pure">0.1133</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000ValueIndex3298_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276789"
      unitRef="pure">0.1053</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell1000Index3299_S000000961Member_S000000961Summary87Member"
      id="ixv-276790">Russell 1000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell1000Index3300_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276791"
      unitRef="pure">0.1737</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell1000Index3300_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276792"
      unitRef="pure">0.1359</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell1000Index3300_S000000961Member_S000000961Summary87Member"
      decimals="INF"
      id="ixv-276793"
      unitRef="pure">0.1459</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276794"> Dimensional VA U.S. Targeted 
Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276795"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100421">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional VA U.S. Targeted Value Portfolio (&#x201c;VA U.S. Targeted Value 
Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276796"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100428">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; 
The expenses in the table do not include any fees or charges imposed by the variable insurance contract. 
If such fees and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276797">Shareholder Fees (fees paid directly from your 
investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276798">Annual Fund Operating Expenses 
(expenses that you pay each                     year as a percentage of 
the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276799"
      unitRef="pure">0.0027</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276800"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276801"
      unitRef="pure">0.0029</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276802">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100487">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276803"
      unitRef="usd">30</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276804"
      unitRef="usd">30</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276805"
      unitRef="usd">93</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276806"
      unitRef="usd">93</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276807"
      unitRef="usd">163</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276808"
      unitRef="usd">163</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276809"
      unitRef="usd">163</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276810"
      unitRef="usd">368</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276811"
      unitRef="usd">368</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276812"
      unitRef="usd">368</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276813">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100514">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;30%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276814"
      unitRef="pure">0.30</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276815"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100524">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the VA U.S. Targeted Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s portfolio 
management and trading processes further balance those long-term drivers of expected returns with shorter-term 
drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA U.S. Targeted Value Portfolio, 
using a market capitalization weighted approach, is designed to purchase a broad and diverse group of 
readily marketable securities of U.S. small and mid cap companies that the Advisor determines to be lower 
relative price stocks with higher profitability. A company&#x2019;s market capitalization is the &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;number of its shares outstanding times its price per share. Under a market capitalization 
weighted approach, companies with higher market capitalizations generally represent a larger proportion 
of the Portfolio than companies with relatively lower market capitalizations. The Portfolio may emphasize 
certain stocks, including smaller capitalization companies, lower relative price stocks, and/or higher 
profitability stocks as compared to their representation in the small- and mid-cap value segment of the 
U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily 
because it has a low price in relation to its book value. In assessing relative price, the Advisor may 
consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer 
is considered to have high profitability because it has high earnings or profits from operations in relation 
to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability 
are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the VA U.S. Targeted Value Portfolio will invest at least 80% of its net 
assets in securities of U.S. companies. As of the date of this Prospectus, the Advisor considers for 
investment companies whose market capitalizations are generally smaller than the 500th largest U.S. company. 
Total market capitalization is based on the market capitalization of eligible U.S. operating companies 
listed on a securities exchange in the United States that is deemed appropriate by the Advisor. Based 
on market capitalization data as of December 31, 2025, the market capitalization of a company smaller 
than the 500th largest U.S. company would be below $15,092 million. This dollar amount will change due 
to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the VA U.S. Targeted 
Value Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term 
considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. 
In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent 
changes in assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s 
investment characteristics are subject to change from time to time. In addition, the Advisor seeks to 
reduce trading costs using a flexible trading approach that looks for opportunities to participate in 
the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA U.S. Targeted Value Portfolio may purchase or sell futures contracts and options on futures contracts 
for U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA U.S. Targeted Value 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_PrincipalRisks2_S000000953Summary88Member"
      id="ixv-100536">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_RiskLoseMoneyMember_S000000953Summary88Member"
      id="ixv-276816">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_RiskNotInsuredMember_S000000953Summary88Member"
      id="ixv-276817">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_EquityMarketRisk2_S000000953Summary88Member"
      id="ixv-100542">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_ValueInvestmentRisk2_S000000953Summary88Member"
      id="ixv-100547">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_ProfitabilityInvestmentRisk2_S000000953Summary88Member"
      id="ixv-100552">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_SmallandMid-CapCompanyRisk2_S000000953Summary88Member"
      id="ixv-100556">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mid-capitalization companies are also more vulnerable than larger companies to 
adverse business or economic developments and they may have more limited resources.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_DerivativesRisk2_S000000953Summary88Member"
      id="ixv-100566">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_SecuritiesLendingRisk2_S000000953Summary88Member"
      id="ixv-100570">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_OperationalRisk2_S000000953Summary88Member"
      id="ixv-100574">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_CyberSecurityRisk2_S000000953Summary88Member"
      id="ixv-100579">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276818"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-100589">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276819">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276820"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276821">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276822">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276823">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276824">Dimensional 
VA U.S. Targeted Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276825">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276826">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276827"
      unitRef="pure">0.3364</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276828">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276829"
      unitRef="pure">-0.3971</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276830">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276831">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276832">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276833"
      unitRef="pure">0.0895</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276834"
      unitRef="pure">0.1360</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276835"
      unitRef="pure">0.1100</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276836">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276837"
      unitRef="pure">0.0588</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276838"
      unitRef="pure">0.1081</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276839"
      unitRef="pure">0.0876</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      id="ixv-276840">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276841"
      unitRef="pure">0.0646</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276842"
      unitRef="pure">0.1013</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002704Member_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276843"
      unitRef="pure">0.0823</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex3301_S000000953Member_S000000953Summary88Member"
      id="ixv-276844">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000953Member_S000000953Summary88Member"
      id="ixv-276845">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex3302_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276846"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex3302_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276847"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell2000ValueIndex3302_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276848"
      unitRef="pure">0.0927</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index3303_S000000953Member_S000000953Summary88Member"
      id="ixv-276849">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index3304_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276850"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index3304_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276851"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index3304_S000000953Member_S000000953Summary88Member"
      decimals="INF"
      id="ixv-276852"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276853"> Dimensional VA International 
Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276854"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-100942">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Dimensional VA International 
Value Portfolio (&#x201c;VA International Value Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276855"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-100949">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276856">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276857">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276858"
      unitRef="pure">0.0025</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276859"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276860"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276861">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-101008">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276862"
      unitRef="usd">28</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276863"
      unitRef="usd">28</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276864"
      unitRef="usd">87</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276865"
      unitRef="usd">87</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276866"
      unitRef="usd">152</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276867"
      unitRef="usd">152</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276868"
      unitRef="usd">152</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276869"
      unitRef="usd">343</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276870"
      unitRef="usd">343</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276871"
      unitRef="usd">343</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276872">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-101035">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;14%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276873"
      unitRef="pure">0.14</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276874"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-101045">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the VA International Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA International Value Portfolio is designed to purchase securities of large non-U.S. companies in countries 
with developed markets that the Advisor determines to be lower relative price stocks. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. Under a market 
capitalization weighted approach, &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;companies with higher market capitalizations generally represent a larger proportion 
of the Portfolio than companies with relatively lower market capitalizations. The Advisor may overweight 
certain stocks, including smaller companies, lower relative price stocks and/or higher profitability 
stocks within the large-cap value segment of developed ex U.S. markets. An equity issuer is considered 
to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to 
its book value. In assessing relative price, the Advisor may consider additional factors such as price 
to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA International Value Portfolio intends to purchase securities of large companies associated with developed 
market countries that the Advisor has designated as approved markets. The Advisor determines the minimum 
market capitalization of a large company with respect to each country or region in which the Portfolio 
invests. Based on market capitalization data as of December 31, 2025, for the Portfolio, the market capitalization 
of a large company in any country or region in which the Portfolio invests would be $1,852 million or 
above. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the VA International Value Portfolio&#x2019;s exposure to an eligible company, or exclude a 
company, based on shorter-term considerations, such as a company&#x2019;s price momentum and short-run 
reversals. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that 
looks for opportunities to participate in the available market liquidity, while managing turnover and 
explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA International Value Portfolio also may gain exposure 
to companies associated with approved markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio may 
purchase or sell futures contracts and options on futures contracts for foreign or U.S. equity securities 
and indices to increase or decrease equity market exposure based on actual or expected cash inflows to 
or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated 
in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA International Value 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_PrincipalRisks2_S000000952Summary89Member"
      id="ixv-101057">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_RiskLoseMoneyMember_S000000952Summary89Member"
      id="ixv-276875">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_RiskNotInsuredMember_S000000952Summary89Member"
      id="ixv-276876">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_EquityMarketRisk2_S000000952Summary89Member"
      id="ixv-101063">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_ValueInvestmentRisk2_S000000952Summary89Member"
      id="ixv-101068">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_ProfitabilityInvestmentRisk2_S000000952Summary89Member"
      id="ixv-101073">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_ForeignSecuritiesandCurrenciesRisk2_S000000952Summary89Member"
      id="ixv-101077">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;value against the U.S. dollar or that a foreign government will convert, or be 
forced to convert, its currency to another currency, changing its value against the U.S. dollar). The 
Portfolio does not hedge foreign currency risk.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject 
to uniform accounting, auditing and financial reporting standards and there may be less reliable and 
publicly available financial and other information about such issuers, as compared to U.S. issuers. A 
fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or 
interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, 
and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic 
issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks 
as the foreign securities that they evidence or into which they may be converted. In addition, the underlying 
issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, 
are under no obligation to distribute shareholder communications to the holders of such receipts, or 
to pass through to them any voting rights with respect to the deposited securities. Depositary receipts 
that are not sponsored by the issuer may be less liquid and there may be less readily available public 
information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_GeographicFocusRisk2_S000000952Summary89Member"
      id="ixv-101089">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments in securities of issuers located in a particular 
country or region, the fund may be subjected, to a greater extent than if its investments were less focused, 
to the risks of volatile economic cycles and/or conditions and developments that may be particular to 
that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, 
political, regulatory, economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_DerivativesRisk2_S000000952Summary89Member"
      id="ixv-101094">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_SecuritiesLendingRisk2_S000000952Summary89Member"
      id="ixv-101098">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_OperationalRisk2_S000000952Summary89Member"
      id="ixv-101102">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_CyberSecurityRisk2_S000000952Summary89Member"
      id="ixv-101107">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276877"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-101117">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;market performance. The table also includes the performance of an additional index 
with a similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276878">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276879"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276880">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276881">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276882">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276883">Dimensional 
VA International Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276884">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276885">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276886"
      unitRef="pure">0.2215</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276887">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276888"
      unitRef="pure">-0.3189</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276889">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276890">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276891">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276892"
      unitRef="pure">0.4564</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276893"
      unitRef="pure">0.1585</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276894"
      unitRef="pure">0.1046</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276895">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276896"
      unitRef="pure">0.4227</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276897"
      unitRef="pure">0.1351</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276898"
      unitRef="pure">0.0867</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      id="ixv-276899">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276900"
      unitRef="pure">0.2763</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276901"
      unitRef="pure">0.1160</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002703Member_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276902"
      unitRef="pure">0.0761</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAValueIndexnetdividends3305_S000000952Member_S000000952Summary89Member"
      id="ixv-276903">MSCI World ex USA Value Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000952Member_S000000952Summary89Member"
      id="ixv-276904">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAValueIndexnetdividends3306_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276905"
      unitRef="pure">0.4223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAValueIndexnetdividends3306_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276906"
      unitRef="pure">0.1394</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAValueIndexnetdividends3306_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276907"
      unitRef="pure">0.0916</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3307_S000000952Member_S000000952Summary89Member"
      id="ixv-276908">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3308_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276909"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3308_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276910"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3308_S000000952Member_S000000952Summary89Member"
      decimals="INF"
      id="ixv-276911"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276912"> Dimensional VA International 
Small Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276913"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101459">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Dimensional VA International 
Small Portfolio (&#x201c;VA International Small Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276914"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101466">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276915">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276916">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276917"
      unitRef="pure">0.0035</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276918"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276919"
      unitRef="pure">0.0039</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276920">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101525">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276921"
      unitRef="usd">40</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276922"
      unitRef="usd">40</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276923"
      unitRef="usd">125</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276924"
      unitRef="usd">125</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276925"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276926"
      unitRef="usd">219</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276927"
      unitRef="usd">219</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276928"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276929"
      unitRef="usd">493</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276930"
      unitRef="usd">493</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276931">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101552">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;17%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276932"
      unitRef="pure">0.17</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276933"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101562">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the VA International Small Portfolio&#x2019;s investment objective, Dimensional Fund Advisors 
LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
designs emphasize long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA International Small 
Portfolio, using a market capitalization weighted approach, is designed to purchase securities of (1) 
Japanese small companies; (2) United Kingdom small companies; (3) small companies organized under the 
laws of certain European countries; (4) small companies associated with Australia, New Zealand and Pacific 
&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Rim Asian countries; and (5) Canadian small companies. The Portfolio also may 
have some exposure to small cap equity securities associated with other countries or regions. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. Under a market 
capitalization weighted approach, companies with higher market capitalizations generally represent a 
larger proportion of the Portfolio than companies with relatively lower market capitalizations. The Portfolio 
may emphasize certain stocks, including smaller capitalization companies, lower relative price stocks, 
and/or higher profitability stocks as compared to their representation in the small-cap segments of the 
countries and/or regions in which the Portfolio is authorized to invest. The Advisor will determine the 
allocation of assets among the five segments and will periodically review and modify such allocation, 
all in its sole discretion. As a non-fundamental policy, under normal circumstances, the Portfolio will 
invest at least 80% of its net assets in securities of small companies. Based on market capitalization 
data as of December 31, 2025, the market capitalization of a small company in any country in which the 
Portfolio invests would be below $16,226 million. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the VA International Small Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA International Small 
Portfolio also may gain exposure to companies associated with approved markets by purchasing equity securities 
in the form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile 
country. The Portfolio may purchase or sell futures contracts and options on futures contracts for foreign 
or U.S. equity securities and indices to increase or decrease equity market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments 
may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities 
or to transfer cash balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA International Small 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_PrincipalRisks2_S000000951Summary90Member"
      id="ixv-101573">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_RiskLoseMoneyMember_S000000951Summary90Member"
      id="ixv-276934">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_RiskNotInsuredMember_S000000951Summary90Member"
      id="ixv-276935">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_EquityMarketRisk2_S000000951Summary90Member"
      id="ixv-101579">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_ForeignSecuritiesandCurrenciesRisk2_S000000951Summary90Member"
      id="ixv-101584">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;interest and obtaining information regarding corporate actions on a timely basis, 
pursuing legal remedies, and obtaining judgments with respect to foreign investments in foreign courts 
than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are 
generally subject to the same risks as the foreign securities that they evidence or into which they may 
be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored 
or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_GeographicFocusRisk2_S000000951Summary90Member"
      id="ixv-101596">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_SmallCompanyRisk2_S000000951Summary90Member"
      id="ixv-101601">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_ProfitabilityInvestmentRisk2_S000000951Summary90Member"
      id="ixv-101605">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_ValueInvestmentRisk2_S000000951Summary90Member"
      id="ixv-101609">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_DerivativesRisk2_S000000951Summary90Member"
      id="ixv-101614">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_SecuritiesLendingRisk2_S000000951Summary90Member"
      id="ixv-101618">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_OperationalRisk2_S000000951Summary90Member"
      id="ixv-101622">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_CyberSecurityRisk2_S000000951Summary90Member"
      id="ixv-101627">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276936"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-101640">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The performance reflected in the bar chart for the Portfolio does not 
reflect any insurance company separate account charges, which if reflected would lower returns. The table 
illustrates how annualized returns for certain periods, both before and after taxes, compare with those 
of a broad measure of market performance. The table also includes the performance of an additional index 
with a similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276937">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276938"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276939">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276940">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276941">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276942">Dimensional 
VA International Small Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276943">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276944">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276945"
      unitRef="pure">0.2142</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276946">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276947"
      unitRef="pure">-0.3027</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276948">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276949">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276950">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276951"
      unitRef="pure">0.3699</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276952"
      unitRef="pure">0.0889</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276953"
      unitRef="pure">0.0868</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276954">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276955"
      unitRef="pure">0.3385</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276956"
      unitRef="pure">0.0666</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276957"
      unitRef="pure">0.0673</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      id="ixv-276958">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276959"
      unitRef="pure">0.2257</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276960"
      unitRef="pure">0.0608</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002702Member_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276961"
      unitRef="pure">0.0615</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSASmallCapIndexnetdividends3309_S000000951Member_S000000951Summary90Member"
      id="ixv-276962">MSCI World ex USA Small Cap Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000951Member_S000000951Summary90Member"
      id="ixv-276963">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3310_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276964"
      unitRef="pure">0.3407</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3310_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276965"
      unitRef="pure">0.0649</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSASmallCapIndexnetdividends3310_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276966"
      unitRef="pure">0.0805</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3311_S000000951Member_S000000951Summary90Member"
      id="ixv-276967">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3312_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276968"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3312_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276969"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3312_S000000951Member_S000000951Summary90Member"
      decimals="INF"
      id="ixv-276970"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276971"> Dimensional VA Short-Term 
Fixed Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276972"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-101977">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Dimensional VA Short-Term 
Fixed Portfolio (&#x201c;VA Short-Term Fixed Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to achieve 
a stable real return in excess of the rate of inflation with a minimum of risk.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276973"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-101984">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276974">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276975">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276976"
      unitRef="pure">0.0010</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276977"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276978"
      unitRef="pure">0.0012</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276979">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-102043">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276980"
      unitRef="usd">12</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276981"
      unitRef="usd">12</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276982"
      unitRef="usd">39</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276983"
      unitRef="usd">39</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276984"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276985"
      unitRef="usd">68</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276986"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276987"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276988"
      unitRef="usd">154</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276989"
      unitRef="usd">154</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276990">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-102070">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;79%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-276991"
      unitRef="pure">0.79</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276992"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-102080">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Short-Term Fixed Portfolio seeks to achieve its investment objective by generally investing in a universe 
of high quality fixed income securities that typically mature in one year or less from the date of settlement. 
The Portfolio may, however, take a large position in securities maturing within two years from the date 
of settlement when higher yields are available. The Portfolio purchases U.S. government obligations, 
U.S. government agency obligations, dollar-denominated obligations of foreign issuers issued in the U.S., 
securities of domestic, or foreign issuers denominated in U.S. dollars but not trading in the U.S., foreign 
government and agency obligations, bank obligations, including U.S. subsidiaries and branches of foreign 
banks, corporate obligations, commercial paper, repurchase agreements, obligations of supranational organizations 
and affiliated and unaffiliated registered and unregistered money market funds. The fixed income securities 
in which the Portfolio invests are considered investment grade at the time of purchase (e.g., rated AAA 
to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)). 
As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its 
net assets in fixed income securities and maintain a weighted average effective maturity that will not 
exceed one year. The effective maturity adjusts the stated final maturity of a fixed income security 
for an actual or expected event such as a call, put, tender, mandatory early redemption, pre-refunding, 
coupon or interest rate reset, or other similar event. The Portfolio principally invests in certificates 
of deposit, commercial paper, bankers&#x2019; acceptances, notes and bonds. In addition, the Portfolio 
is authorized to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, and 
obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Short-Term Fixed 
Portfolio may purchase or sell futures contracts and options on futures contracts, to hedge its interest 
rate exposure or for non-hedging purposes, such as a substitute for direct investment or to increase 
or decrease market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Short-Term Fixed Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_PrincipalRisks2_S000000954Summary91Member"
      id="ixv-102089">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x45x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_RiskLoseMoneyMember_S000000954Summary91Member"
      id="ixv-276993">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_RiskNotInsuredMember_S000000954Summary91Member"
      id="ixv-276994">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_MarketRisk2_S000000954Summary91Member"
      id="ixv-102095">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_ForeignGovernmentDebtRisk2_S000000954Summary91Member"
      id="ixv-102100">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the repayment of government 
debt may not be willing or able to repay the principal and/or to pay the interest when it becomes due, 
due to factors such as political considerations, the relative size of the governmental entity&#x2019;s 
debt position in relation to the economy, cash flow problems, insufficient foreign currency reserves, 
the failure to put in place economic reforms required by the International Monetary Fund or other multilateral 
agencies, and/or other national economic factors; (b) governments may default on their debt securities, 
which may require holders of such securities to participate in debt rescheduling; and (c) there is no 
legal or bankruptcy process by which defaulted government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_ForeignSecuritiesandCurrenciesRisk2_S000000954Summary91Member"
      id="ixv-102105">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_InterestRateRisk2_S000000954Summary91Member"
      id="ixv-102111">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_CreditRisk2_S000000954Summary91Member"
      id="ixv-102116">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived 
change in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, impact 
the performance of a fund holding such securities. Government &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_IncomeRisk2_S000000954Summary91Member"
      id="ixv-102126">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_CallRisk2_S000000954Summary91Member"
      id="ixv-102131">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_DerivativesRisk2_S000000954Summary91Member"
      id="ixv-102136">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, settlement, liquidity, interest 
rate, market, credit and management risks, as well as difficulties with respect to valuation. Changes 
in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and 
a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_SecuritiesLendingRisk2_S000000954Summary91Member"
      id="ixv-102140">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_LiquidityRisk2_S000000954Summary91Member"
      id="ixv-102144">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_OperationalRisk2_S000000954Summary91Member"
      id="ixv-102149">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_CyberSecurityRisk2_S000000954Summary91Member"
      id="ixv-102154">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276995"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-102167">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The performance reflected in the bar chart for the Portfolio does not 
reflect any insurance company separate account charges, which if reflected would lower returns. The table 
illustrates how annualized returns for certain periods, both before and after taxes, compare with those 
of a broad measure of market performance. The table also includes the performance of an additional index 
with a similar investment universe as the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276996">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276997"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276998">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-276999">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-277000">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-277001">Dimensional 
VA Short-Term Fixed Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277002">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277003">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277004"
      unitRef="pure">0.0140</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277005">2024-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277006"
      unitRef="pure">-0.0118</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277007">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-277008">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277009">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277010"
      unitRef="pure">0.0433</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277011"
      unitRef="pure">0.0265</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277012"
      unitRef="pure">0.0197</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277013">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277014"
      unitRef="pure">0.0256</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277015"
      unitRef="pure">0.0147</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277016"
      unitRef="pure">0.0113</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      id="ixv-277017">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277018"
      unitRef="pure">0.0256</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277019"
      unitRef="pure">0.0153</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002705Member_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277020"
      unitRef="pure">0.0115</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofAUS3-MonthTreasuryBillIndex3313_S000000954Member_S000000954Summary91Member"
      id="_7645_">ICE BofA US 3-Month Treasury 
Bill Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000954Member_S000000954Summary91Member"
      id="ixv-277022">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3314_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277023"
      unitRef="pure">0.0418</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3314_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277024"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3314_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277025"
      unitRef="pure">0.0218</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3315_S000000954Member_S000000954Summary91Member"
      id="ixv-277026">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3316_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277027"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3316_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277028"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3316_S000000954Member_S000000954Summary91Member"
      decimals="INF"
      id="ixv-277029"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277030"> Dimensional VA Global Bond 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277031"> Investment 
Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102515">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The investment objective of the Dimensional VA Global Bond 
Portfolio (&#x201c;VA Global Bond Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to provide a market 
rate of return for a fixed income portfolio with low relative volatility of returns.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277032"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102522">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277033">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277034">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277035"
      unitRef="pure">0.0019</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277036"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277037"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277038">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102581">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277039"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277040"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277041"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277042"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277043"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277044"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277045"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277046"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277047"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277048"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277049">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102608">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;41%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277050"
      unitRef="pure">0.41</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277051"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102618">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Global Bond Portfolio seeks to achieve its investment objective by generally investing in a universe 
of U.S. and foreign debt securities maturing in five years or less from the date of settlement. The Portfolio 
primarily purchases obligations issued or guaranteed by the U.S. and foreign governments, their agencies 
and instrumentalities, corporate debt obligations, bank obligations, commercial paper, repurchase agreements, 
money market funds, securities of domestic and foreign issuers denominated in U.S. dollars but not trading 
in the United States and obligations of supranational organizations. Dimensional Fund Advisor LP (&#x201c;the 
Advisor&#x201d;) expects that the Portfolio will primarily invest in the obligations of issuers that are 
in developed countries. The Advisor selects the Portfolio's foreign country and currency compositions 
based on an evaluation of various factors, including, but not limited to, relative interest rates and 
exchange rates. The fixed income securities in which the Portfolio invests are considered investment 
grade at the time of purchase (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) 
or &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings 
(&#x201c;Moody&#x2019;s&#x201d;)). The Portfolio intends to invest its assets to gain exposure to at least 
three different countries, including the United States. As of the date of the Prospectus, the Portfolio 
invests approximately 8% of its net assets in U.S. issuers. This percentage will change due to market 
conditions. As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 
80% of its net assets in fixed income securities. The Portfolio will generally invest its assets in obligations 
which mature within five years from the date of settlement. In addition, the Portfolio is authorized 
to invest more than 25% of its total assets in U.S. Treasury bonds, bills and notes, and obligations 
of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because many of the VA Global 
Bond Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may also enter 
into foreign currency forward contracts to attempt to protect against uncertainty in the level of future 
foreign currency rates, to hedge against fluctuations in currency exchange rates, or to transfer balances 
from one currency to another. The Portfolio also may purchase or sell futures contracts and options on 
futures contracts, to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging 
purposes, such as a substitute for direct investment or to increase or decrease market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Global Bond Portfolio 
may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_PrincipalRisks2_S000000962Summary92Member"
      id="ixv-102627">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_RiskLoseMoneyMember_S000000962Summary92Member"
      id="ixv-277052">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_RiskNotInsuredMember_S000000962Summary92Member"
      id="ixv-277053">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_MarketRisk2_S000000962Summary92Member"
      id="ixv-102633">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_ForeignSecuritiesandCurrenciesRisk2_S000000962Summary92Member"
      id="ixv-102638">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_ForeignGovernmentDebtRisk2_S000000962Summary92Member"
      id="ixv-102644">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_InterestRateRisk2_S000000962Summary92Member"
      id="ixv-102649">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_CreditRisk2_S000000962Summary92Member"
      id="ixv-102657">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_IncomeRisk2_S000000962Summary92Member"
      id="ixv-102662">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_CallRisk2_S000000962Summary92Member"
      id="ixv-102667">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_DerivativesRisk2_S000000962Summary92Member"
      id="ixv-102672">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_SecuritiesLendingRisk2_S000000962Summary92Member"
      id="ixv-102676">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_LiquidityRisk2_S000000962Summary92Member"
      id="ixv-102680">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_OperationalRisk2_S000000962Summary92Member"
      id="ixv-102685">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_CyberSecurityRisk2_S000000962Summary92Member"
      id="ixv-102693">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
fund and its service providers&#x2019; use of internet, technology and information systems may expose 
the fund to potential risks linked to cyber security breaches of those technological or information systems. 
Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary 
information, customer data, or fund assets, or cause the fund and/or its service providers to suffer 
data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277054"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-102703">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277055">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277056"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277057">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277058">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277059">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277060">Dimensional 
VA Global Bond Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277061">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277062">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277063"
      unitRef="pure">0.0235</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277064">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277065"
      unitRef="pure">-0.0450</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277066">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277067">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277068">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277069"
      unitRef="pure">0.0435</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277070"
      unitRef="pure">0.0138</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277071"
      unitRef="pure">0.0181</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277072">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277073"
      unitRef="pure">0.0262</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277074"
      unitRef="pure">0.0012</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277075"
      unitRef="pure">0.0071</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      id="ixv-277076">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277077"
      unitRef="pure">0.0257</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277078"
      unitRef="pure">0.0051</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000002713Member_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277079"
      unitRef="pure">0.0091</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3318_S000000962Member_S000000962Summary92Member"
      id="ixv-277080">FTSE World Government Bond Index 
1-5 Years (hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000000962Member_S000000962Summary92Member"
      id="ixv-277081">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3319_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277082"
      unitRef="pure">0.0512</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3319_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277083"
      unitRef="pure">0.0180</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_FTSEWorldGovernmentBondIndex1-5YearshedgedtoUSD3319_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277084"
      unitRef="pure">0.0208</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3320_S000000962Member_S000000962Summary92Member"
      id="ixv-277085">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3321_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277086"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3321_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277087"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3321_S000000962Member_S000000962Summary92Member"
      decimals="INF"
      id="ixv-277088"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277089"> Dimensional VIT Inflation-Protected 
Securities Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277090"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103042">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional VIT Inflation-Protected Securities Portfolio (&#x201c;Inflation-Protected 
Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to provide inflation protection and earn current 
income consistent with inflation-protected securities.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277091"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103049">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277092">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277093">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277094"
      unitRef="pure">0.0009</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277095"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277096"
      unitRef="pure">0.0011</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277097">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103108">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. Although your 
actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold 
your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277098"
      unitRef="usd">11</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277099"
      unitRef="usd">11</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277100"
      unitRef="usd">35</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277101"
      unitRef="usd">35</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277102"
      unitRef="usd">62</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277103"
      unitRef="usd">62</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277104"
      unitRef="usd">62</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277105"
      unitRef="usd">141</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277106"
      unitRef="usd">141</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277107"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277108">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103135">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. These 
costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s 
performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277109"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277110"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103145">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Inflation-Protected Portfolio seeks its investment objective by investing in a universe of inflation-protected 
securities that are structured to provide returns linked to the rate of inflation over the long-term. 
The Portfolio ordinarily invests in inflation-protected securities issued by the U.S. Government and 
its agencies and instrumentalities and the credit quality of such inflation-protected securities will 
be that of such applicable U.S. government, agency or instrumentality issuer.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the Inflation-Protected 
Portfolio will invest at least 80% of its net assets in inflation-protected securities. Inflation-protected 
securities (also known as inflation-indexed securities) are securities whose principal and/or interest 
payments are adjusted for inflation, unlike conventional debt securities that make fixed principal and 
interest payments. Inflation-protected securities include Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;), 
which are securities issued by the U.S. Treasury. The principal value of TIPS is adjusted for inflation 
(payable at maturity) and the semi-annual interest payments by TIPS equal a fixed percentage of the inflation-adjusted 
principal amount. These inflation adjustments are based upon the Consumer Price Index for Urban Consumers 
(CPI-U). The original principal value of TIPS is guaranteed. At maturity, TIPS are redeemed at the greater 
of their inflation-adjusted principal or par amount at original issue. Other types of inflation-protected 
securities may use other methods to adjust for inflation and other measures of inflation. In addition, 
inflation-protected securities issued by entities other than the U.S. Treasury may not provide a guarantee 
of principal value at maturity.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the Inflation-Protected Portfolio 
will purchase inflation-protected securities with maturities of between five and twenty years from the 
date of settlement, although at times, the Portfolio may purchase securities outside of this range. Under 
normal circumstances, when determining its duration, the Portfolio will consider a weighted average duration 
similar to the Bloomberg U.S. TIPS Index, which was approximately 6.50 years as of December 31, 2025. 
Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. The 
longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Inflation-Protected Portfolio is authorized to invest more than 25% of its total assets in Treasury bonds, 
bills and notes and obligations of U.S. government agencies and instrumentalities. The Portfolio may 
also invest in money market funds. The Portfolio will not shift the maturity of its investments in anticipation 
of interest rate movements.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Inflation-Protected Portfolio may purchase or sell futures 
contracts and options on futures contracts, to hedge its interest rate exposure or for non-hedging purposes, 
such as a substitute for direct investment or to increase or decrease market exposure based on actual 
or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Inflation-Protected 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_PrincipalRisks2_S000049213Summary93Member"
      id="ixv-103156">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_RiskLoseMoneyMember_S000049213Summary93Member"
      id="ixv-277111">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_RiskNotInsuredMember_S000049213Summary93Member"
      id="ixv-277112">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_MarketRisk2_S000049213Summary93Member"
      id="ixv-103162">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_InterestRateRisk2_S000049213Summary93Member"
      id="ixv-103167">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000049213Summary93Member"
      id="ixv-103172">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_CreditRisk2_S000049213Summary93Member"
      id="ixv-103177">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_RisksofInvestingforInflationProtection2_S000049213Summary93Member"
      id="ixv-103187">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or principal payments on an inflation-protected security 
are adjusted periodically for changes in inflation, the income distributed by a fund investing in such 
securities may be irregular. Although the U.S. Treasury guarantees to pay at maturity at least the original 
face value of any inflation-protected securities the Treasury issues, other issuers may not offer the 
same guarantee. Inflation-protected securities are not protected against deflation. As a result, in a 
period of deflation, the principal and income of inflation-protected securities held by a fund will decline 
and the fund may suffer a loss during such periods. While inflation-protected securities are expected 
to be protected from long-term inflationary trends, short-term increases in inflation may lead to a decline 
in the value of a fund holding such securities. For example, if interest rates rise due to reasons other 
than inflation, a fund&#x2019;s investment in these securities may not be protected to the extent that 
the increase is not reflected in the securities&#x2019; inflation measures. In addition, positive adjustments 
to principal generally will result in taxable income to a fund at the time of such adjustments (which 
generally would be distributed by the fund as part of its taxable dividends), even though the principal 
amount is not paid until maturity. The current market value of inflation-protected securities is not 
guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_IncomeRisk2_S000049213Summary93Member"
      id="ixv-103192">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk that falling interest rates will cause a fund&#x2019;s 
income to decline because, among other reasons, the proceeds from maturing short-term securities in its 
portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_DerivativesRisk2_S000049213Summary93Member"
      id="ixv-103197">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment 
position with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there 
is no guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can 
also reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. The use of derivatives 
for non-hedging purposes may be considered to carry more risk than other types of investments. When a 
fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative 
instruments are subject to a number of risks including counterparty, settlement, liquidity, interest 
rate, market, credit and management risks, as well as difficulties with respect to valuation. Changes 
in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and 
a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_LiquidityRisk2_S000049213Summary93Member"
      id="ixv-103201">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_SecuritiesLendingRisk2_S000049213Summary93Member"
      id="ixv-103206">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_OperationalRisk2_S000049213Summary93Member"
      id="ixv-103210">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_CyberSecurityRisk2_S000049213Summary93Member"
      id="ixv-103220">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277113"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-103230">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277114">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277115"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277116">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277117">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277118">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277119">Dimensional 
VIT Inflation-Protected Securities Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277120">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277121">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277122"
      unitRef="pure">0.0489</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277123">2016-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277124"
      unitRef="pure">-0.0640</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277125">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277126">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277127">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277128"
      unitRef="pure">0.0755</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277129"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277130"
      unitRef="pure">0.0312</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277131">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277132"
      unitRef="pure">0.0584</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277133"
      unitRef="pure">-0.0094</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277134"
      unitRef="pure">0.0172</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      id="ixv-277135">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277136"
      unitRef="pure">0.0447</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277137"
      unitRef="pure">-0.0004</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000155213Member_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277138"
      unitRef="pure">0.0181</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3322_S000049213Member_S000049213Summary93Member"
      id="ixv-277139">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000049213Member_S000049213Summary93Member"
      id="ixv-277140">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3323_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277141"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3323_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277142"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3323_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277143"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3324_S000049213Member_S000049213Summary93Member"
      id="ixv-277144">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3325_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277145"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3325_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277146"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSAggregateBondIndex3325_S000049213Member_S000049213Summary93Member"
      decimals="INF"
      id="ixv-277147"
      unitRef="pure">0.0201</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277148"> Dimensional VA Global Moderate 
Allocation Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277149"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103569">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional VA Global Moderate Allocation Portfolio (&#x201c;VA Global Moderate 
Allocation Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to seek total return consisting of capital 
appreciation and current income.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277150"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103576">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses in the table 
do not include any fees or charges imposed by the variable insurance contract. If such fees and charges 
were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277151">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277152">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277153"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277154"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277155"
      unitRef="pure">0.0019</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277156"
      unitRef="pure">0.0043</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="_7851_"
      unitRef="pure">-0.0015</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277158"
      unitRef="pure">0.0028</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277159">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103664">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for 
the Portfolio reflect the net expenses of the Portfolio that result from the contractual expense waiver 
in the first year only. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277160"
      unitRef="usd">29</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277161"
      unitRef="usd">29</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277162"
      unitRef="usd">123</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277163"
      unitRef="usd">123</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277164"
      unitRef="usd">226</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277165"
      unitRef="usd">226</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277166"
      unitRef="usd">226</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277167"
      unitRef="usd">528</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277168"
      unitRef="usd">528</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277169"
      unitRef="usd">528</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277170">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103691">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs. The Portfolio does 
not pay transaction costs when buying and selling shares of other funds managed by Dimensional Fund Advisors 
LP (the &#x201c;Underlying Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying 
and selling securities for their portfolio. These costs, which are not reflected in Annual Fund Operating 
Expenses or in the Example, affect the Portfolio&#x2019;s &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277171"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277172"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103706">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Global Moderate Allocation Portfolio 
is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets among 
other funds managed by Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;), although it has the 
ability to invest directly in securities and derivatives. To achieve the Portfolio&#x2019;s and the Underlying 
Funds&#x2019; investment objectives, the Advisor implements an integrated investment approach that combines 
research, portfolio design, portfolio management, and trading functions. As further described below, 
the Portfolio&#x2019;s and the Underlying Funds&#x2019; designs emphasize long-term drivers of expected 
returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Global Moderate Allocation Portfolio, under normal 
market circumstances, purchases shares of the Underlying Funds to achieve a moderate allocation to both 
global equity and global fixed income securities. Generally, the Portfolio invests its assets in domestic 
and international equity Underlying Funds and fixed income Underlying Funds to achieve an allocation 
that provides a moderate allocation to global equity securities, with an allocation of approximately 
55% to 75% of the Portfolio&#x2019;s assets to domestic and international equity Underlying Funds and 
25% to 45% of its assets to fixed income Underlying Funds. Periodically, the Advisor will review the 
allocations for the Portfolio in each Underlying Fund and may adjust allocations to Underlying Funds 
or may add or remove Underlying Funds in the Portfolio without notice to shareholders.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Global Moderate Allocation Portfolio, directly or indirectly through its investment in the Underlying 
Funds, intends to invest its assets to gain exposure to at least three different countries, including 
the United States. As of the date of the Prospectus, the Portfolio, directly or indirectly through its 
investment in the Underlying Funds, invests approximately 54% of its net assets in U.S. companies or 
issuers. This percentage will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;In 
addition to its allocation strategy of providing exposure to the domestic and international equity and 
fixed income markets through investment in the Underlying Funds, the VA Global Moderate Allocation Portfolio 
further diversifies its investment portfolio by allocating its assets among Underlying Funds that represent 
a variety of different asset classes. As of the date of this Prospectus, the Portfolio invests in: (1) 
domestic equity Underlying Funds that purchase a broad and diverse portfolio of securities of U.S. operating 
companies of all market capitalization sizes with a moderate to meaningful emphasis on smaller, lower 
relative price, and higher profitability companies and a domestic equity Underlying Fund that primarily 
invests in publicly traded real estate investment trusts (&#x201c;REITs&#x201d;); (2) international equity 
Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
ex U.S. and emerging markets of all market capitalization sizes which may include frontier markets (emerging 
market countries in an earlier stage of development) with a&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;meaningful 
emphasis on smaller, lower relative price, and higher profitability companies and an international equity 
Underlying Fund that primarily invests in publicly traded REITs and REIT-like entities; and (3) fixed 
income Underlying Funds that may purchase U.S. and foreign debt securities such as obligations issued 
or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, corporate debt 
obligations, bank obligations, commercial paper, repurchase agreements, money market funds, securities 
of domestic and foreign issuers denominated in U.S. dollars but not trading in the United States, obligations 
of supranational organizations and inflation-protected securities.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the VA Global Moderate Allocation Portfolio&#x2019;s and/or Underlying 
Funds&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in 
assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Global Moderate Allocation Portfolio and each Underlying Fund may purchase or sell futures contracts 
and options on futures contracts, to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio or Underlying Fund. Certain Underlying Funds may enter 
into foreign currency &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;exchange transactions, including foreign currency forward contracts, in connection 
with the settlement of foreign securities, to attempt to protect against uncertainty in the level of 
future foreign currency rates, to hedge against fluctuations in currency exchange rates or to transfer 
balances from one currency to another.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain fixed income Underlying Funds 
also may purchase or sell futures contracts and options on futures contracts, to hedge their interest 
rate or currency exposure or for non-hedging purposes, such as a substitute for direct investment. Also 
the Portfolio and Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain 
of the Underlying Funds are available for investment only by insurance company separate accounts that 
fund variable life and variable annuity contracts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A summary 
of the investment strategies and policies of the Underlying Funds in which the VA Global Moderate Allocation 
Portfolio invests as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus 
in the section entitled &#x201c;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES 
AND POLICIES&#x2014;Investments in Underlying Funds.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#x201d;&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_PrincipalRisks2_S000024504Summary94Member"
      id="ixv-103727">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x75x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_RiskLoseMoneyMember_S000024504Summary94Member"
      id="ixv-277173">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_RiskNotInsuredMember_S000024504Summary94Member"
      id="ixv-277174">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_FundofFundsRisk2_S000024504Summary94Member"
      id="ixv-103733">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_EquityMarketRisk2_S000024504Summary94Member"
      id="ixv-103738">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_MarketRisk2_S000024504Summary94Member"
      id="ixv-103743">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ForeignSecuritiesandCurrenciesRisk2_S000024504Summary94Member"
      id="ixv-103748">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks as the foreign securities 
that they evidence or into which they may be converted. In addition, the underlying issuers of certain 
depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation 
to distribute shareholder communications to the holders of such receipts, or to pass through to them 
any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored 
by the issuer may be less liquid and there may be less readily available public information about the 
issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ForeignGovernmentDebtRisk2_S000024504Summary94Member"
      id="ixv-103759">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
risk that: (a) the governmental entity that controls the repayment of government debt may not be willing 
or able to repay the principal and/or to pay the interest when it becomes due, due to factors such as 
political considerations, the relative size of the governmental entity&#x2019;s debt position in relation 
to the economy, cash flow problems, insufficient foreign currency reserves, the failure to put in place 
economic reforms required by the International Monetary Fund or other multilateral agencies, and/or other 
national economic factors; (b) governments may default on their debt securities, which may require holders 
of such securities to participate in debt rescheduling; and (c) there is no legal or bankruptcy process 
by which defaulted government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ProfitabilityInvestmentRisk2_S000024504Summary94Member"
      id="ixv-103764">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ValueInvestmentRisk2_S000024504Summary94Member"
      id="ixv-103768">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_SmallandMid-CapCompanyRisk2_S000024504Summary94Member"
      id="ixv-103773">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_EmergingMarketsRisk2_S000024504Summary94Member"
      id="ixv-103778">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_InterestRateRisk2_S000024504Summary94Member"
      id="ixv-103785">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CreditRisk2_S000024504Summary94Member"
      id="ixv-103790">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_IncomeRisk2_S000024504Summary94Member"
      id="ixv-103798">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CallRisk2_S000024504Summary94Member"
      id="ixv-103803">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_DerivativesRisk2_S000024504Summary94Member"
      id="ixv-103808">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_SecuritiesLendingRisk2_S000024504Summary94Member"
      id="ixv-103812">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_LiquidityRisk2_S000024504Summary94Member"
      id="ixv-103816">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_OperationalRisk2_S000024504Summary94Member"
      id="ixv-103821">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CyberSecurityRisk2_S000024504Summary94Member"
      id="ixv-103826">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277175"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-103836">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;performance from year to year. The performance reflected in the bar chart for 
the Portfolio does not reflect any insurance company separate account charges, which if reflected would 
lower returns. The table illustrates how annualized returns for certain periods, both before and after 
taxes, compare with those of a broad measure of market performance. The table also includes the performance 
of additional indexes with similar investment universes of the Portfolio, or certain portions of the 
Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown 
in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277176">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277178"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277179">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277180">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277181">In addition, the after-tax returns shown are not relevant to investors who hold shares 
of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277182">Dimensional 
VA Global Moderate Allocation Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277183">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277184">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277185"
      unitRef="pure">0.1404</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277186">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277187"
      unitRef="pure">-0.1653</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277188">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277189">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277190">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277191"
      unitRef="pure">0.1468</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277192"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277193"
      unitRef="pure">0.0865</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277194">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277195"
      unitRef="pure">0.1328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277196"
      unitRef="pure">0.0710</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277197"
      unitRef="pure">0.0749</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      id="ixv-277198">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277199"
      unitRef="pure">0.0886</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277200"
      unitRef="pure">0.0610</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277201"
      unitRef="pure">0.0651</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_VAGlobalModerateAllocationCompositeIndex3326_S000024504Member_S000024504Summary94Member"
      id="_7932_">VA Global Moderate Allocation 
Composite Index1</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary94Member"
      id="ixv-277203">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_VAGlobalModerateAllocationCompositeIndex3327_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277204"
      unitRef="pure">0.1579</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_VAGlobalModerateAllocationCompositeIndex3327_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277205"
      unitRef="pure">0.0775</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_VAGlobalModerateAllocationCompositeIndex3327_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277206"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3328_S000024504Member_S000024504Summary94Member"
      id="ixv-277207">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3329_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277208"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3329_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277209"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3329_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277210"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3330_S000024504Member_S000024504Summary94Member"
      id="_7942_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)2</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3331_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277212"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3331_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277213"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3331_S000024504Member_S000024504Summary94Member"
      decimals="INF"
      id="ixv-277214"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277215"> Dimensional VA Equity Allocation 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277216"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104245">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional VA Equity Allocation Portfolio (&#x201c;VA Equity Allocation Portfolio&#x201d; 
or, the &#x201c;Portfolio&#x201d;) is to achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277217"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104252">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses 
in the table do not include any fees or charges imposed by the variable insurance contract. If such fees 
and charges were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277218">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277219">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277220"
      unitRef="pure">0.0027</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277221"
      unitRef="pure">0.0001</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277222"
      unitRef="pure">0.0020</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277223"
      unitRef="pure">0.0048</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="_7958_"
      unitRef="pure">-0.0017</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277225"
      unitRef="pure">0.0031</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277226">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104340">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for 
the Portfolio reflect the net expenses of the Portfolio that result from the contractual expense waiver 
in the first year only. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277227"
      unitRef="usd">32</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277228"
      unitRef="usd">32</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277229"
      unitRef="usd">137</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277230"
      unitRef="usd">137</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277231"
      unitRef="usd">252</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277232"
      unitRef="usd">252</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277233"
      unitRef="usd">252</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277234"
      unitRef="usd">587</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277235"
      unitRef="usd">587</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277236"
      unitRef="usd">587</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277237">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104367">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs. The Portfolio 
does not pay transaction costs when buying and selling shares of other funds managed by Dimensional Fund 
Advisors LP (the &#x201c;Underlying Funds&#x201d;); however, the Underlying Funds pay transaction costs 
when buying and selling securities for their portfolio. These costs, which are not reflected in Annual 
Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the most 
recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;6%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277238"
      unitRef="pure">0.06</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277239"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104380">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Equity Allocation Portfolio is a &#x201c;fund of funds,&#x201d; which means the Portfolio generally 
allocates its assets among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;), although it has the ability to invest directly in securities and derivatives. The Portfolio 
seeks to provide investors with exposure to a diversified portfolio of global equity securities. To achieve 
the Portfolio&#x2019;s and the Underlying Funds&#x2019; investment objectives, Dimensional Fund Advisors 
LP (the &#x201d;Advisor&#x201d;) implements an integrated investment approach that combines research, portfolio 
design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
and the Underlying Funds&#x2019; designs emphasize long-term drivers of expected returns identified by 
the Advisor&#x2019;s research, while balancing risk through broad diversification across companies, sectors, 
and countries. The Advisor&#x2019;s portfolio management and trading processes further balance those long-term 
drivers of expected returns with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio seeks to provide investors with exposure to a diversified portfolio of global equity securities. 
The Portfolio is designed to invest substantially all of its assets in the following Underlying Funds: 
VA U.S. Large Value Portfolio, VA U.S. Targeted Value Portfolio, U.S. Core Equity 1 Portfolio, VA International 
Value Portfolio, VA International Small Portfolio, International Core Equity 2 Portfolio, Emerging Markets 
Core Equity 2 Portfolio, DFA International Real Estate Securities Portfolio, DFA Real Estate Securities 
Portfolio (each a series of DFA Investment Dimensions Group Inc.) and U.S. Large Company Portfolio (a 
series of Dimensional Investment Group Inc.).&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Generally, the VA Equity Allocation 
Portfolio invests its assets in the Underlying Funds to gain exposure to equity securities with an allocation 
of approximately 55% to 75% of the Portfolio&#x2019;s assets in U.S. equity securities, 0-15% in real 
estate securities, 10-35% in international developed markets equity securities, and 0-20% in emerging 
markets equity securities. Periodically, the Advisor will review the allocations for the Portfolio in 
each Underlying Fund and may adjust allocations to the Underlying Funds or may add or remove Underlying 
Funds in the Portfolio without notice to shareholders.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the VA Equity Allocation Portfolio, through its investments in the Underlying 
Funds, will invest at least 80% of its net assets in equity securities. Certain Underlying Funds may 
invest with a moderate to meaningful emphasis on securities of smaller, lower relative price, and higher 
profitability companies. The Portfolio may have exposure to companies in all market capitalization ranges. 
The Portfolio and each Underlying Fund may invest in affiliated and unaffiliated registered and unregistered 
money market funds to manage its cash pending investment in other securities or to maintain liquidity 
for the payment of redemptions or other purposes. Investments in money market funds may involve a duplication 
of certain fees and expenses.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the VA Equity Allocation 
Portfolio&#x2019;s and/or Underlying Funds&#x2019; exposure to an eligible company, or exclude a company, 
based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor 
considers ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses 
for assessing a company&#x2019;s investment characteristics are subject to change from time to time. In 
addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Equity Allocation Portfolio and each Underlying Fund 
may gain exposure to companies associated with approved markets by purchasing equity securities in the 
form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. 
The Portfolio and each Underlying Fund may use derivatives, such as futures contracts and options on 
futures contracts for equity securities and indices of its approved markets or other equity market securities 
or indices, including those of the United States, to increase or decrease equity market exposure based 
on actual or expected cash inflows to or outflows from the Portfolio or Underlying Fund.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain 
Underlying Funds may enter into foreign currency exchange transactions, including foreign currency forward 
contracts, in connection with the settlement of foreign securities or to transfer balances from one currency 
to another.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Equity Allocation Portfolio and Underlying Funds may lend their portfolio 
securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain of the Underlying Funds are available for investment only by insurance 
company separate accounts that fund variable life and variable annuity contracts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
summary of the investment strategies and policies of the Underlying Funds in which the VA Equity Allocation 
Portfolio invests as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus 
in the section entitled &#x201c;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES 
AND POLICIES&#x2014;Investments in Underlying Funds.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#x201d;&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_PrincipalRisks2_S000057540Summary95Member"
      id="ixv-104398">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x85x10"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_RiskLoseMoneyMember_S000057540Summary95Member"
      id="ixv-277240">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_RiskNotInsuredMember_S000057540Summary95Member"
      id="ixv-277241">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_FundofFundsRisk2_S000057540Summary95Member"
      id="ixv-104404">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_EquityMarketRisk2_S000057540Summary95Member"
      id="ixv-104409">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_ForeignSecuritiesandCurrenciesRisk2_S000057540Summary95Member"
      id="ixv-104414">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Underlying Funds do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_EmergingMarketsRisk2_S000057540Summary95Member"
      id="ixv-104421">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;markets. Additional restrictions may be imposed under other conditions. Frontier 
market countries generally have smaller economies or less developed capital markets and, as a result, 
the risks of investing in emerging market countries are magnified in frontier market countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_SmallandMid-CapCompanyRisk2_S000057540Summary95Member"
      id="ixv-104433">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_ProfitabilityInvestmentRisk2_S000057540Summary95Member"
      id="ixv-104438">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_ValueInvestmentRisk2_S000057540Summary95Member"
      id="ixv-104442">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_DerivativesRisk2_S000057540Summary95Member"
      id="ixv-104447">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_SecuritiesLendingRisk2_S000057540Summary95Member"
      id="ixv-104451">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_OperationalRisk2_S000057540Summary95Member"
      id="ixv-104455">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_CyberSecurityRisk2_S000057540Summary95Member"
      id="ixv-104460">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277242"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-104470">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The performance reflected in the 
bar chart for the Portfolio does not reflect any insurance company separate account charges, which if 
reflected would lower returns. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes. Actual after-tax returns depend on an investor&#x2019;s tax situation and may 
differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277243">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277244"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277245">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277246">The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277247">In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277248">Dimensional 
VA Equity Allocation Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277249">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277250">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277251"
      unitRef="pure">0.2070</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277252">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277253"
      unitRef="pure">-0.2656</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277254">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277255">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277256">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277257"
      unitRef="pure">0.1994</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277258"
      unitRef="pure">0.1223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170710_20251231_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="_8021_"
      unitRef="pure">0.1137</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277260">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277261"
      unitRef="pure">0.1868</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277262"
      unitRef="pure">0.1069</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170710_20251231_AfterTaxesOnDistributionsMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="_8025_"
      unitRef="pure">0.1006</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      id="ixv-277264">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277265"
      unitRef="pure">0.1204</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277266"
      unitRef="pure">0.0914</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170710_20251231_AfterTaxesOnDistributionsAndSalesMember_C000183437Member_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="_8029_"
      unitRef="pure">0.0871</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3334_S000057540Member_S000057540Summary95Member"
      id="ixv-277268">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000057540Member_S000057540Summary95Member"
      id="ixv-277269">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3335_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277270"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3335_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="ixv-277271"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20170710_20251231_MSCIAllCountryWorldIMIIndexnetdividends3335_S000057540Member_S000057540Summary95Member"
      decimals="INF"
      id="_8034_"
      unitRef="pure">0.1115</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277273"> U.S. Social Core Equity 2 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277274"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110107">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Social Core Equity 2 Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277275"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110114">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277276">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277277">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277278"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277279"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277280"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277281">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110173">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277282"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277283"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277284"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277285"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277286"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277287"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277288"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277289"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277290"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277291"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277292">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110200">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277293"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277294"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110210">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Social Core Equity 2 Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach 
that combines research, portfolio design, portfolio management, and trading functions. As further described 
below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s 
research, while balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Social Core Equity 
2 Portfolio is designed to purchase a broad and diverse group of equity securities within a market capitalization 
weighted universe (e.g., the larger the company, the greater the proportion of the universe it &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;represents) of U.S. operating companies (the &#x201c;U.S. Universe&#x201d;). 
The Portfolio invests in companies of all sizes, with meaningfully increased exposure to smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the U.S. 
Universe, while excluding companies based on the Portfolio&#x2019;s social issue screens. The Portfolio&#x2019;s 
meaningfully increased exposure to smaller capitalization, lower relative price, and higher profitability 
companies may be achieved by decreasing the allocation of the Portfolio&#x2019;s assets to larger capitalization, 
higher relative price, or lower profitability companies relative to their weight in the U.S. Universe. 
An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because 
it has a high price in relation to its book value. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Additionally, 
the representation of securities in the Portfolio as compared to their representation in the U.S. Universe 
may be affected by the Portfolio&#x2019;s social issue screens.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, 
under normal circumstances, the U.S. Social Core Equity 2 Portfolio will invest at least 80% of its net 
assets in equity securities of U.S. companies. The Advisor generally defines a U.S. company as one that 
is listed and principally traded on a securities exchange in the United States that is deemed appropriate 
by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Social Core 
Equity 2 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in assets 
divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics 
are subject to change from time to time. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Social Core Equity 
2 Portfolio also may purchase or sell futures contracts and options on futures contracts for U.S. equity 
securities and indices, to increase or decrease equity market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio. The above-referenced investments are not subject to, although 
they may incorporate, the Portfolio&#x2019;s social criteria.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Social Core Equity 
2 Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Social Core Equity 2 Portfolio seeks to purchase securities that are consistent with the Portfolio&#x2019;s 
social issue screens, which are monitored by, or based upon information from, an independent third party. 
The Portfolio seeks to exclude from its investment portfolio those companies that are identified by the 
Portfolio&#x2019;s social issue screens, as further discussed below. The Portfolio&#x2019;s social issue screens 
are designed to identify companies that: (1) earn at least 10% of their total annual revenue through 
the production and/or sale of conventional or nuclear weapons, their weapon systems, or key intended 
components of these products, or the provision of weapon systems support and service&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; related 
to nuclear weapons, such as the repair and maintenance of nuclear weapons&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (2) 
have demonstrated complicity in genocide in Sudan, for example, by having ties to the Sudanese military 
or government, selling or distributing military equipment to a party based in Sudan or operating within 
Sudan borders, or generating 10% or more of its total assets or revenues in Sudan from the oil, mineral 
or power sectors; (3) earn at least 10% of their total annual revenue through the production and/or sale 
of tobacco (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover products designed as an aid to 
quit smoking)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;alcoholic beverages as 
an intoxicating agent &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover 
packaging such as bottles, cans, corks or caps)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, or cannabis products; 
(4) earn at least 10% of their total annual revenue from the ownership or operation of gambling facilities, 
licensing their brand name to gambling products, or providing support or services to the gambling industry; 
(5) directly participate in abortions, or develop or manufacture abortive agents or contraceptives; (6) 
earn at least 10% of their total annual revenue from the retail, distribution or production of pornographic 
products (this criteria does not cover companies that offer content sharing platforms that are not pornography 
focused but allow third-party users to upload pornographic content; (7) are involved in the production 
of landmines, cluster munitions, or key intended components of such weapons; (8) &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;produce 
firearms (i.e., using an explosive charge as a propellant) intended for civilian use&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (9)&#160;have 
had &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;involvement in severe child labor controversies (factors that may be considered 
for determining severity include, but are not limited to, a history of involvement in child labor-related 
legal cases, widespread or egregious instances of child labor, resistance to improved practices, and 
criticism by non-governmental organizations and/or other third-party &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;observers)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (10) conduct stem cell 
research using cells derived from human embryos or fetal tissue, or use fetal cell lines in the development 
of vaccines or other biopharmaceuticals; (11) operate or manage, or provide staffing services to, for-profit 
correctional and/or detention facilities (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover 
provision of maintenance or non-management services, including staffing for such services)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; 
(12) have material involvement in severe environmental, social or governance controversies that indicate 
operations inconsistent with responsible business conduct standards, such as those defined by the United 
Nations Global Compact Principles and the Organization for Economic Co-operation and Development Guidelines 
for Multinational Enterprises; (13) have relatively high carbon intensity or potential emissions from 
reserves or scaled potential emissions from reserves; and/or (14) have thermal or metallurgical coal 
reserves.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The U.S. Social Core Equity 2 Portfolio 
may modify this list of social issue screens, at any time, without prior shareholder approval or notice. 
(See &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;Additional Information on Investment Objectives and Policies&#x2014;Applying the 
Portfolios&#x2019; Social Criteria&#x201d; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;in this Prospectus.)&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_PrincipalRisks2_S000018154Summary96Member"
      id="ixv-110251">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x11"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_RiskLoseMoneyMember_S000018154Summary96Member"
      id="ixv-277295">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_RiskNotInsuredMember_S000018154Summary96Member"
      id="ixv-277296">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_EquityMarketRisk2_S000018154Summary96Member"
      id="ixv-110257">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_ProfitabilityInvestmentRisk2_S000018154Summary96Member"
      id="ixv-110262">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_ValueInvestmentRisk2_S000018154Summary96Member"
      id="ixv-110266">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_SmallandMid-CapCompanyRisk2_S000018154Summary96Member"
      id="ixv-110271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_SocialInvestmentRisk2_S000018154Summary96Member"
      id="ixv-110276">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Social Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund with social issue screens may limit the number of investment 
opportunities available to the fund, and as a result, at times the Portfolio may underperform funds that 
are not subject to such special investment conditions. For example, a fund with social issue screens 
may decline to purchase certain securities when it is otherwise advantageous to do so, or may sell certain 
securities for social reasons when it is otherwise disadvantageous to do so. There is no guarantee that 
a fund&#x2019;s investments will reflect the social considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_DerivativesRisk2_S000018154Summary96Member"
      id="ixv-110281">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_SecuritiesLendingRisk2_S000018154Summary96Member"
      id="ixv-110288">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_OperationalRisk2_S000018154Summary96Member"
      id="ixv-110292">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_CyberSecurityRisk2_S000018154Summary96Member"
      id="ixv-110297">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277297"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-110307">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277298">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277299"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277300">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277301">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277302">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277303">U.S. 
Social Core Equity 2 Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277304">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277305">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277306"
      unitRef="pure">0.2306</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277307">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277308"
      unitRef="pure">-0.2641</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277309">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277310">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277311">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277312"
      unitRef="pure">0.1596</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277313"
      unitRef="pure">0.1334</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277314"
      unitRef="pure">0.1353</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277315">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277316"
      unitRef="pure">0.1571</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277317"
      unitRef="pure">0.1265</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277318"
      unitRef="pure">0.1281</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      id="ixv-277319">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277320"
      unitRef="pure">0.0961</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277321"
      unitRef="pure">0.1051</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000050178Member_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277322"
      unitRef="pure">0.1111</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index3336_S000018154Member_S000018154Summary96Member"
      id="ixv-277323">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000018154Member_S000018154Summary96Member"
      id="ixv-277324">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index3337_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277325"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index3337_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277326"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index3337_S000018154Member_S000018154Summary96Member"
      decimals="INF"
      id="ixv-277327"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277328"> International Social Core 
Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277329"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110614">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Social Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277330"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110621">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277331">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277332">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277333"
      unitRef="pure">0.0022</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277334"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277335"
      unitRef="pure">0.0026</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277336">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110680">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277337"
      unitRef="usd">27</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277338"
      unitRef="usd">27</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277339"
      unitRef="usd">84</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277340"
      unitRef="usd">84</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277341"
      unitRef="usd">146</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277342"
      unitRef="usd">146</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277343"
      unitRef="usd">146</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277344"
      unitRef="usd">331</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277345"
      unitRef="usd">331</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277346"
      unitRef="usd">331</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277347">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110707">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277348"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277349"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110717">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Social Core 
Equity Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Social Core Equity Portfolio is designed 
to purchase a broad and diverse group of equity securities within a market capitalization weighted universe 
(e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. 
companies associated with developed markets that have been authorized for &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;investment by the Advisor&#x2019;s Investment Committee (the &#x201c;International 
Universe&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully increased exposure to 
smaller capitalization, lower relative price, and higher profitability companies as compared to their 
representation in the International Universe, while excluding securities of certain companies based on 
the Portfolio&#x2019;s social issue screens. The Portfolio&#x2019;s meaningfully increased exposure to smaller 
capitalization, lower relative price, and higher profitability companies may be achieved by decreasing 
the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower 
profitability companies relative to their weight in the International Universe. An equity issuer is considered 
to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation 
to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) 
primarily because it has a low price in relation to its book value. In assessing relative price, the 
Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity 
issuer is considered to have high profitability because it has high earnings or profits from operations 
in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and 
profitability are subject to change from time to time.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Additionally, 
the representation of securities in the Portfolio as compared to their representation in the International 
Universe may be affected by the Portfolio&#x2019;s social issue screens.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
International Social Core Equity Portfolio intends to purchase securities of companies associated with 
developed market countries that the Advisor has designated as approved markets. As a non-fundamental 
policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in equity 
securities.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor determines company 
size on a country or region specific basis and based primarily on market capitalization.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the International Social Core Equity Portfolio&#x2019;s exposure to an 
eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price 
momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change 
from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach 
that looks for opportunities to participate in the available market liquidity, while managing turnover 
and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Social Core Equity Portfolio may gain exposure 
to companies associated with approved markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio may purchase 
or sell futures contracts and options on futures contracts for approved market or other equity market 
securities and indices, including those of the United States, to increase or decrease equity market exposure 
based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s 
investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities or to transfer cash balances from one currency to another currency. The above-referenced investments 
are not subject to, although they may incorporate, the Portfolio&#x2019;s social criteria.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Social Core Equity Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
International Social Core Equity Portfolio seeks to purchase securities that are consistent with the 
Portfolio&#x2019;s social issue screens, which are monitored by, or based upon information from, an independent 
third party. The Portfolio seeks to exclude from its investment portfolio those companies that are identified 
by the Portfolio&#x2019;s social issue screens, as further discussed below. The Portfolio&#x2019;s social issue 
screens are designed to identify companies that: (1) earn at least 10% of their total annual revenue 
through the production and/or sale of conventional or nuclear weapons, their weapon systems, or key intended 
components of these products, or the provision of weapon systems support and service&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; related 
to nuclear weapons, such as the repair and maintenance of nuclear weapons&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (2) 
have demonstrated complicity in genocide in Sudan, for example, by having ties to the Sudanese military 
or government, selling or distributing military equipment to a party based in Sudan or operating within 
Sudan borders, or generating 10% or more of its total assets or revenues in Sudan from the oil, mineral 
or power sectors; (3) earn at least 10% of their total annual revenue through the production and/or sale 
of tobacco (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover products designed as an aid to 
quit smoking)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;alcoholic beverages as 
an intoxicating agent &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover 
packaging such as bottles, cans, corks or caps)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, or cannabis products; 
(4) earn at least 10% of their total annual revenue from the ownership or operation of gambling facilities, 
licensing their brand name to gambling products, or providing support or services to the gambling industry; 
(5) directly participate in abortions, or develop or manufacture abortive agents or contraceptives; (6) 
earn at least 10% of their total annual revenue from the retail, distribution or production of pornographic 
products (this criteria does not cover companies that offer content &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;sharing platforms that are not pornography focused but allow 
third-party users to upload pornographic content; (7) are involved in the production of landmines, cluster 
munitions, or key intended components of such weapons; (8) &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;produce firearms (i.e., 
using an explosive charge as a propellant) intended for civilian use&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (9)&#160;have 
had &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;involvement in severe child labor controversies (factors that may be considered 
for determining severity include, but are not limited to, a history of involvement in child labor-related 
legal cases, widespread or egregious instances of child labor, resistance to improved practices, and 
criticism by non-governmental organizations and/or other third-party observers)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (10) 
conduct stem cell research using cells derived from human embryos or fetal tissue, or use fetal cell 
lines in the development of vaccines or other biopharmaceuticals; (11) operate or manage, or provide 
staffing services to, for-profit correctional and/or detention facilities (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this 
criteria does not cover provision of maintenance or non-management services, including staffing for such 
services)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (12) have material involvement in severe environmental, social or governance 
controversies that indicate operations inconsistent with responsible business conduct standards, such 
as those defined by the United Nations Global Compact Principles and the Organization for Economic Co-operation 
and Development Guidelines for Multinational Enterprises; (13) have relatively high carbon intensity 
or potential emissions from reserves or scaled potential emissions from reserves; and/or (14) have thermal 
or metallurgical coal reserves.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The International Social 
Core Equity Portfolio may modify this list of social issue screens, at any time, without prior shareholder 
approval or notice. (See &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;Additional Information on Investment Objectives and Policies&#x2014;Applying 
the Portfolios&#x2019; Social Criteria&#x201d; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;in this Prospectus.)&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_PrincipalRisks2_S000038669Summary97Member"
      id="ixv-110761">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x15x11"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_RiskLoseMoneyMember_S000038669Summary97Member"
      id="ixv-277350">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_RiskNotInsuredMember_S000038669Summary97Member"
      id="ixv-277351">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_EquityMarketRisk2_S000038669Summary97Member"
      id="ixv-110767">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_ProfitabilityInvestmentRisk2_S000038669Summary97Member"
      id="ixv-110772">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_ValueInvestmentRisk2_S000038669Summary97Member"
      id="ixv-110776">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_ForeignSecuritiesandCurrenciesRisk2_S000038669Summary97Member"
      id="ixv-110781">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;of such receipts, or to pass through to them any voting rights with respect to 
the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid 
and there may be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_GeographicFocusRisk2_S000038669Summary97Member"
      id="ixv-110793">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a 
fund focuses its investments in securities of issuers located in a particular country or region, the 
fund may be subjected, to a greater extent than if its investments were less focused, to the risks of 
volatile economic cycles and/or conditions and developments that may be particular to that country or 
region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, 
economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_SmallandMid-CapCompanyRisk2_S000038669Summary97Member"
      id="ixv-110798">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_SocialInvestmentRisk2_S000038669Summary97Member"
      id="ixv-110803">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Social Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund with social issue screens may limit the number of investment 
opportunities available to the fund, and as a result, at times the Portfolio may underperform funds that 
are not subject to such special investment conditions. For example, a fund with social issue screens 
may decline to purchase certain securities when it is otherwise advantageous to do so, or may sell certain 
securities for social reasons when it is otherwise disadvantageous to do so. There is no guarantee that 
a fund&#x2019;s investments will reflect the social considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_DerivativesRisk2_S000038669Summary97Member"
      id="ixv-110808">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_SecuritiesLendingRisk2_S000038669Summary97Member"
      id="ixv-110812">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_OperationalRisk2_S000038669Summary97Member"
      id="ixv-110816">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_CyberSecurityRisk2_S000038669Summary97Member"
      id="ixv-110821">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277352"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-110831">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;after taxes) is not an indication of future results. Updated performance information 
for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277353">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277354"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277356">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277357">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277358">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277359">International 
Social Core Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277360">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277361">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277362"
      unitRef="pure">0.1923</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277363">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277364"
      unitRef="pure">-0.2877</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277365">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277366">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277367">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277368"
      unitRef="pure">0.3776</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277369"
      unitRef="pure">0.1012</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277370"
      unitRef="pure">0.0899</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277371">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277372"
      unitRef="pure">0.3653</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277373"
      unitRef="pure">0.0928</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277374"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      id="ixv-277375">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277376"
      unitRef="pure">0.2301</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277377"
      unitRef="pure">0.0785</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000119189Member_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277378"
      unitRef="pure">0.0716</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3338_S000038669Member_S000038669Summary97Member"
      id="ixv-277379">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000038669Member_S000038669Summary97Member"
      id="ixv-277380">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3339_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277381"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3339_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277382"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3339_S000038669Member_S000038669Summary97Member"
      decimals="INF"
      id="ixv-277383"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277384"> Emerging Markets Social Core 
Equity Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277385"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111142">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Emerging Markets Social Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277386"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111149">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277387">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277388">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277389"
      unitRef="pure">0.0035</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277390"
      unitRef="pure">0.0009</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277391"
      unitRef="pure">0.0044</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277392">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111208">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277393"
      unitRef="usd">45</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277394"
      unitRef="usd">45</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277395"
      unitRef="usd">141</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277396"
      unitRef="usd">141</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277397"
      unitRef="usd">246</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277398"
      unitRef="usd">246</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277399"
      unitRef="usd">246</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277400"
      unitRef="usd">555</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277401"
      unitRef="usd">555</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277402"
      unitRef="usd">555</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277403">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111235">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277404"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277405"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111245">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the Emerging Markets Social 
Core Equity Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Social Core Equity Portfolio is designed 
to purchase a broad and diverse group of equity securities within a market capitalization weighted universe 
(e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. 
companies associated with emerging markets authorized for investment by &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;the Advisor&#x2019;s Investment Committee (&#x201c;Approved Markets&#x201d;), 
which may include frontier markets (emerging market countries in an earlier stage of development) (the 
&#x201c;Emerging Markets Universe&#x201d;). The Portfolio invests in companies of all sizes, with meaningfully 
increased exposure to smaller capitalization, lower relative price, and higher profitability companies 
as compared to their representation in the Emerging Markets Universe, while excluding securities of certain 
emerging markets companies based upon the Portfolio&#x2019;s social issue screens. The Portfolio&#x2019;s meaningfully 
increased exposure to smaller capitalization, lower relative price, and higher profitability companies 
may be achieved by decreasing the allocation of the Portfolio&#x2019;s assets to larger capitalization, higher 
relative price, or lower profitability companies relative to their weight in the Emerging Markets Universe. 
An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because 
it has a high price in relation to its book value. An equity issuer is considered to have a low relative 
price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Additionally, 
the representation of securities in the Portfolio as compared to their representation in the Emerging 
Markets Universe may be affected by the Portfolio&#x2019;s social issue screens.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the Emerging Markets Social Core Equity Portfolio&#x2019;s exposure to 
an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change 
from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach 
that looks for opportunities to participate in the available market liquidity, while managing turnover 
and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As a non-fundamental policy, under normal circumstances, the 
Emerging Markets Social Core Equity Portfolio will invest at least 80% of its net assets in emerging 
markets equity securities that are defined in the prospectus as Approved Markets securities. The Portfolio 
may gain exposure to companies in Approved Markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio may also 
invest in China A-shares (equity securities of companies listed in China) and variable interest entities 
(special structures that utilize contractual arrangements to provide exposure to certain Chinese companies).&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Social Core Equity Portfolio may purchase or sell futures contracts and options on futures 
contracts for Approved Markets or other equity market securities and indices, including those of the 
United&#160;States, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated in 
foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency. The above-referenced investments are not subject to, 
although they may incorporate, the Portfolio&#x2019;s social criteria.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Social 
Core Equity Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Social Core Equity Portfolio seeks to purchase securities that are consistent with the 
Portfolio&#x2019;s social issue screens, which are monitored by, or based upon information from, an independent 
third party. The Portfolio seeks to exclude from its investment portfolio those companies that are identified 
by the Portfolio&#x2019;s social issue screens, as further discussed below. The Portfolio&#x2019;s social issue 
screens are designed to identify companies that: (1) earn at least 10% of their total annual revenue 
through the production and/or sale of conventional or nuclear weapons, their weapon systems, or key intended 
components of these products, or the provision of weapon systems support and service&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; related 
to nuclear weapons, such as the repair and maintenance of nuclear weapons&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (2) 
have demonstrated complicity in genocide in Sudan, for example, by having ties to the Sudanese military 
or government, selling or distributing military equipment to a party based in Sudan or operating within 
Sudan borders, or generating 10% or more of its total assets or revenues in Sudan from the oil, mineral 
or power sectors; (3) earn at least 10% of their total annual revenue through the production and/or sale 
of tobacco (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover products designed as an aid to 
quit smoking)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;alcoholic beverages as 
an intoxicating agent &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover 
packaging such as bottles, cans, corks or caps)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, or cannabis products; 
(4) earn at least 10% of their total annual revenue from the ownership or operation of gambling facilities, 
licensing their brand name to gambling products, or providing support or services to the gambling industry; 
(5) directly participate in abortions, &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;or develop or manufacture abortive agents or contraceptives; 
(6) earn at least 10% of their total annual revenue from the retail, distribution or production of pornographic 
products (this criteria does not cover companies that offer content sharing platforms that are not pornography 
focused but allow third-party users to upload pornographic content; (7) are involved in the production 
of landmines, cluster munitions, or key intended components of such weapons; (8) &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;produce 
firearms (i.e., using an explosive charge as a propellant) intended for civilian use&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (9)&#160;have 
had &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;involvement in severe child labor controversies (factors that may be considered 
for determining severity include, but are not limited to, a history of involvement in child labor-related 
legal cases, widespread or egregious instances of child labor, resistance to improved practices, and 
criticism by non-governmental organizations and/or other third-party observers)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (10) 
conduct stem cell research using cells derived from human embryos or fetal tissue, or use fetal cell 
lines in the development of vaccines or other biopharmaceuticals; (11) operate or manage, or provide 
staffing services to, for-profit correctional and/or detention facilities (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this 
criteria does not cover provision of maintenance or non-management services, including staffing for such 
services)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (12) have material involvement in severe environmental, social or governance 
controversies that indicate operations inconsistent with responsible business conduct standards, such 
as those defined by the United Nations Global Compact Principles and the Organization for Economic Co-operation 
and Development Guidelines for Multinational Enterprises; (13) have relatively high carbon intensity 
or potential emissions from reserves or scaled potential emissions from reserves; and/or (14) have thermal 
or metallurgical coal reserves.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Emerging Markets Social 
Core Equity Portfolio may modify this list of social issue screens, at any time, without prior shareholder 
approval or notice. (See &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;Additional Information on Investment Objectives and Policies&#x2014;Applying 
the Portfolios&#x2019; Social Criteria&#x201d;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; in this Prospectus.)&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_PrincipalRisks2_S000012960Summary98Member"
      id="ixv-111286">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x25x11"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_RiskLoseMoneyMember_S000012960Summary98Member"
      id="ixv-277406">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_RiskNotInsuredMember_S000012960Summary98Member"
      id="ixv-277407">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_EquityMarketRisk2_S000012960Summary98Member"
      id="ixv-111292">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_ProfitabilityInvestmentRisk2_S000012960Summary98Member"
      id="ixv-111297">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_ValueInvestmentRisk2_S000012960Summary98Member"
      id="ixv-111301">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_EmergingMarketsRisk2_S000012960Summary98Member"
      id="ixv-111306">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_ChinaInvestmentsRisk2_S000012960Summary98Member"
      id="ixv-111313">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, Hong Kong, and Taiwan. 
China, Hong Kong, and Taiwan are highly interconnected and interdependent, with relationships built on 
trade, finance, culture, and politics. Despite prior economic and trade reforms and the prior expansion 
of private ownership of companies in certain sectors, the Chinese government still exercises substantial 
influence over many aspects of the &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;private sector and may own or control many companies, including by embedding Chinese 
Communist Party or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the 
Chinese government continues to maintain a major role in economic policy making and may alter or discontinue 
economic or trade reforms at any time. Investing in China involves risks of losses due to expropriation, 
nationalization, confiscation of assets and property, and the imposition of restrictions on foreign investments 
and on repatriation of capital invested.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota limitations and less market liquidity, which could pose 
risks to a fund investing in such securities. In addition, investments in special structures that utilize 
contractual arrangements to provide exposure to certain Chinese companies, known as variable interest 
entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or prohibits foreign investments 
may present additional risks. The Chinese government&#x2019;s acceptance of the VIE structure is evolving. 
It is uncertain whether Chinese officials and regulators will withdraw their acceptance of the structure 
generally, or with respect to certain industries, or whether Chinese courts or arbitration bodies would 
decline to enforce the contractual rights of foreign investors, each of which would likely have significant, 
detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_ForeignSecuritiesandCurrenciesRisk2_S000012960Summary98Member"
      id="ixv-111324">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_GeographicFocusRisk2_S000012960Summary98Member"
      id="ixv-111331">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_SmallandMid-CapCompanyRisk2_S000012960Summary98Member"
      id="ixv-111336">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and 
Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap 
companies are often less liquid than those of large companies and this could make it difficult to sell 
a small or mid-cap company security at a desired time or price. As a result, small and mid-cap company 
stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies are 
also more vulnerable than larger companies to adverse business or economic developments and they may 
have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_SocialInvestmentRisk2_S000012960Summary98Member"
      id="ixv-111341">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Social Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund with social issue screens may limit the number of investment 
opportunities available to the fund, and as a result, at times the Portfolio may underperform funds that 
are not subject to such special &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investment conditions. For example, a fund with social issue screens may decline 
to purchase certain securities when it is otherwise advantageous to do so, or may sell certain securities 
for social reasons when it is otherwise disadvantageous to do so. There is no guarantee that a fund&#x2019;s 
investments will reflect the social considerations of any particular investor.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_DerivativesRisk2_S000012960Summary98Member"
      id="ixv-111351">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_SecuritiesLendingRisk2_S000012960Summary98Member"
      id="ixv-111355">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_OperationalRisk2_S000012960Summary98Member"
      id="ixv-111359">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_CyberSecurityRisk2_S000012960Summary98Member"
      id="ixv-111364">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277408"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-111374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277409">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277410"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277411">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277412">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277413">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277414">Emerging 
Markets Social Core Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277415">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277416">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277417"
      unitRef="pure">0.2130</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277418">2020-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277419"
      unitRef="pure">-0.2829</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277420">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277421">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277422">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277423"
      unitRef="pure">0.3018</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277424"
      unitRef="pure">0.0631</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277425"
      unitRef="pure">0.0904</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277426">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277427"
      unitRef="pure">0.2933</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277428"
      unitRef="pure">0.0549</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277429"
      unitRef="pure">0.0833</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      id="ixv-277430">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277431"
      unitRef="pure">0.1846</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277432"
      unitRef="pure">0.0472</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000035022Member_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277433"
      unitRef="pure">0.0719</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3340_S000012960Member_S000012960Summary98Member"
      id="ixv-277434">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000012960Member_S000012960Summary98Member"
      id="ixv-277435">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3341_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277436"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3341_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277437"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIEmergingMarketsIndexnetdividends3341_S000012960Member_S000012960Summary98Member"
      decimals="INF"
      id="ixv-277438"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277439"> Global Social Core Equity 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277440"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111683">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Global Social Core Equity Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277441"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111690">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277442">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277443">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277444"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277445"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277446"
      unitRef="pure">0.0026</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="_8307_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277448"
      unitRef="pure">0.0034</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277449">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111773">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277450"
      unitRef="usd">35</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277451"
      unitRef="usd">35</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277452"
      unitRef="usd">109</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277453"
      unitRef="usd">109</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277454"
      unitRef="usd">191</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277455"
      unitRef="usd">191</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277456"
      unitRef="usd">191</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277457"
      unitRef="usd">431</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277458"
      unitRef="usd">431</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277459"
      unitRef="usd">431</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277460">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111800">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities for 
their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, 
affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277461"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277462"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111813">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Social Core Equity Portfolio is a &#x201c;fund of funds,&#x201d; which means that the Portfolio generally 
allocates its assets among other mutual funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), 
although it also has the ability to invest directly in securities and derivatives. To achieve the Portfolio&#x2019;s 
and the Underlying Funds&#x2019; (defined below) investment objectives, the Advisor implements an integrated 
investment approach that combines research, portfolio design, portfolio management, and trading functions. 
As further described below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; designs emphasize long-term 
drivers of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad 
diversification across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading 
processes further balance those long-term drivers of expected returns with shorter-term drivers of expected 
returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Social Core Equity Portfolio is designed to provide 
exposure to a broad portfolio of equity securities of U.S. and non-U.S. companies, with a meaningful 
emphasis on smaller capitalization, lower relative price, and higher profitability companies, by primarily 
purchasing shares of U.S. Social Core Equity 2 Portfolio, International Social Core Equity Portfolio, 
and Emerging Markets Social Core Equity Portfolio (the &#x201c;Underlying Funds&#x201d;). The Portfolio may have 
exposure to companies in all the market capitalization ranges. Periodically, the Advisor will review 
the allocations for the Portfolio in each Underlying Fund and may adjust allocations to the Underlying 
Funds or may add or remove Underlying Funds in the Portfolio without notice to shareholders. Additionally, 
the representation of securities in the Underlying Funds as compared to their representation in the U.S. 
and non-U.S. markets may be affected by the Underlying Funds&#x2019; social issue screens.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the Global Social Core Equity Portfolio&#x2019;s 
net assets will be invested directly, or indirectly through its investment in the Underlying Funds, in 
equity securities. The Portfolio, directly or indirectly through its investment in the Underlying Funds, 
intends to invest its assets to gain exposure to at least three different countries, including the United 
States. As of the date of the Prospectus, the Portfolio, directly or indirectly through its investment 
in the Underlying Funds, invests approximately 61% of its net assets in U.S. companies. This percentage 
will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the Global Social Core Equity Portfolio&#x2019;s and/or Underlying Funds&#x2019; exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time to 
time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks 
for opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Social Core Equity Portfolio and each Underlying 
Fund may purchase or sell futures contracts and options on futures contracts for equity securities and 
indices, to increase or decrease equity market exposure based on actual or expected cash inflows to or 
outflows from the Portfolio or Underlying Fund. The Portfolio and international and emerging markets 
Underlying Funds may enter into foreign currency exchange transactions, including foreign currency forward 
contracts, in connection with the settlement of foreign securities, to hedge foreign currency risks, 
to hedge against fluctuations in currency exchange rates, or to transfer balances from one currency to 
another.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;In addition, the Global Social Core Equity Portfolio and each 
Underlying Fund may invest in exchange-traded funds (&#x201c;ETFs&#x201d;) for the purposes of gaining exposure 
to the equity markets, while maintaining liquidity. In addition to money market instruments and other 
short-term investments, the Portfolio and each Underlying Fund may invest in affiliated and unaffiliated 
registered and unregistered money market funds. The Portfolio and Underlying Funds may invest in such 
money market funds and other short-term investments to manage cash pending investment in other securities 
or to maintain liquidity for the payment of redemptions or other purposes. Investments in ETFs and money 
market funds may involve a duplication of certain fees and expenses. The above-referenced investments 
are not subject to, although they may incorporate, the Portfolio&#x2019;s social criteria.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Social Core Equity Portfolio and Underlying Funds may lend their portfolio securities to generate 
additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Global Social Core Equity Portfolio and each Underlying 
Fund seek to purchase securities that are consistent with the Portfolio&#x2019;s and Underlying Funds&#x2019; social 
issue screens, which are monitored by, or based upon information from, an independent third party. The 
Portfolio and each Underlying Fund seek to exclude from their investment portfolios those companies that 
are identified by the Portfolio&#x2019;s and Underlying Funds&#x2019; social issue screens, as further discussed 
below. The Portfolio&#x2019;s and Underlying Funds&#x2019; social issue screens are designed to identify companies 
that: (1) earn at least 10% of their total annual revenue through the production and/or sale of conventional 
or nuclear weapons, their weapon systems, or key intended components of these products, or the provision 
of weapon systems support and service&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; related to nuclear weapons, such 
as the repair and maintenance of nuclear weapons&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (2) have demonstrated 
complicity in genocide in Sudan, for example, by having ties to the Sudanese military or government, 
selling or distributing military equipment to a party based in Sudan or operating within Sudan borders, 
or generating 10% or more of its total assets or revenues in Sudan from the oil, mineral or power sectors; 
(3) earn at least 10% of their total annual revenue through the production and/or sale of tobacco (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this 
criteria does not cover products designed as an aid to quit smoking)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;alcoholic 
beverages as an intoxicating agent &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this 
criteria does not cover packaging such as bottles, cans, corks or caps)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, or 
cannabis products; (4) earn at least 10% of their total annual revenue from the ownership or operation 
of gambling facilities, licensing their brand name to gambling products, or providing support or services 
to the gambling industry; (5) directly participate in abortions, or develop or manufacture abortive agents 
or contraceptives; (6) earn at least 10% of their total annual revenue from the retail, distribution 
or production of pornographic products (this criteria does not cover companies that offer content sharing 
platforms that are not pornography focused but allow third-party users to upload pornographic content; 
(7) are involved in the production of landmines, cluster munitions, or key intended components of such 
weapons; (8) &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;produce firearms (i.e., using an explosive charge as a propellant) 
intended for civilian use&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (9)&#160;have had &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;involvement in severe child 
labor controversies (factors that may be considered for determining severity include, but are not limited 
to, a history of involvement in child labor-related legal cases, widespread or egregious instances of 
child labor, resistance to improved practices, and criticism by non-governmental organizations and/or 
other third-party observers)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (10) conduct stem cell research using cells derived from 
human embryos or fetal tissue, or use fetal cell lines in the development of vaccines or other biopharmaceuticals; 
(11) operate or manage, or provide staffing services to, for-profit correctional and/or detention facilities 
(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover provision of maintenance or non-management services, 
including staffing for such services)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (12) have material involvement 
in severe environmental, social or governance controversies that indicate operations inconsistent with 
responsible business conduct standards, such as those defined by the United Nations Global Compact Principles 
and the Organization for Economic Co-operation and Development Guidelines for Multinational Enterprises; 
(13) have relatively high carbon intensity or potential emissions from reserves or scaled potential emissions 
from reserves; and/or (14) have thermal or metallurgical coal reserves.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Social Core Equity Portfolio and each Underlying Fund may modify their lists of social issue screens, 
at any time, without prior shareholder approval or notice.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_PrincipalRisks2_S000066958Summary99Member"
      id="ixv-111842">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x11"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_RiskLoseMoneyMember_S000066958Summary99Member"
      id="ixv-277463">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_RiskNotInsuredMember_S000066958Summary99Member"
      id="ixv-277464">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_FundofFundsRisk2_S000066958Summary99Member"
      id="ixv-111848">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to a proportionate 
share of the expenses of those underlying funds in addition to the expenses of a fund of funds. Certain 
risks of the Underlying Funds&#x2019; investments that are principal risks of investing in the Portfolio are 
described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_EquityMarketRisk2_S000066958Summary99Member"
      id="ixv-111853">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;fund that owns them, to rise or fall. Stock markets are volatile, with periods 
of rising prices and periods of falling prices.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_SocialInvestmentRisk2_S000066958Summary99Member"
      id="ixv-111863">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Social 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund with social issue screens 
may limit the number of investment opportunities available to the fund, and as a result, at times the 
Portfolio may underperform funds that are not subject to such special investment conditions. For example, 
a fund with social issue screens may decline to purchase certain securities when it is otherwise advantageous 
to do so, or may sell certain securities for social reasons when it is otherwise disadvantageous to do 
so. There is no guarantee that a fund&#x2019;s investments will reflect the social considerations of any particular 
investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_SmallandMid-CapCompanyRisk2_S000066958Summary99Member"
      id="ixv-111868">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_ProfitabilityInvestmentRisk2_S000066958Summary99Member"
      id="ixv-111873">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_ValueInvestmentRisk2_S000066958Summary99Member"
      id="ixv-111877">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_EmergingMarketsRisk2_S000066958Summary99Member"
      id="ixv-111882">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_ForeignSecuritiesandCurrenciesRisk2_S000066958Summary99Member"
      id="ixv-111889">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because 
of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities 
markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility 
that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will 
convert, or be forced to convert, its currency to another currency, changing its value against the U.S. 
dollar). The Portfolio and each Underlying Fund do not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_DerivativesRisk2_S000066958Summary99Member"
      id="ixv-111896">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_SecuritiesLendingRisk2_S000066958Summary99Member"
      id="ixv-111905">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_OperationalRisk2_S000066958Summary99Member"
      id="ixv-111909">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_CyberSecurityRisk2_S000066958Summary99Member"
      id="ixv-111914">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277465"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-111924">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277466">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277467"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277468">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277469">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277470">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277471">Global 
Social Core Equity Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277472">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277473">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277474"
      unitRef="pure">0.2141</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277475">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277476"
      unitRef="pure">-0.2728</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277477">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277478">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277479">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277480"
      unitRef="pure">0.2264</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277481"
      unitRef="pure">0.1141</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20191119_20251231_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="_8368_"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277483">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277484"
      unitRef="pure">0.2213</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277485"
      unitRef="pure">0.1082</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20191119_20251231_AfterTaxesOnDistributionsMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="_8372_"
      unitRef="pure">0.1152</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      id="ixv-277487">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277488"
      unitRef="pure">0.1373</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277489"
      unitRef="pure">0.0894</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20191119_20251231_AfterTaxesOnDistributionsAndSalesMember_C000215528Member_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="_8376_"
      unitRef="pure">0.0963</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIAllCountryWorldIMIIndexnetdividends3342_S000066958Member_S000066958Summary99Member"
      id="ixv-277491">MSCI All Country World IMI Index 
(net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000066958Member_S000066958Summary99Member"
      id="ixv-277492">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3343_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277493"
      unitRef="pure">0.2206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIAllCountryWorldIMIIndexnetdividends3343_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="ixv-277494"
      unitRef="pure">0.1075</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20191119_20251231_MSCIAllCountryWorldIMIIndexnetdividends3343_S000066958Member_S000066958Summary99Member"
      decimals="INF"
      id="_8381_"
      unitRef="pure">0.1209</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277496"> DFA Social Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277497"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112256">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Social Fixed Income Portfolio (the &#x201c;Social Fixed Income Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to seek to maximize total returns. Total return is comprised of income and 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277498"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112263">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277499">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277500">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277501"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277502"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277503"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277504">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112322">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277505"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277506"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277507"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277508"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277509"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277510"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277511"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277512"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277513"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277514"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277515">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112349">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;30%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277516"
      unitRef="pure">0.30</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277517"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112359">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income Portfolio seeks 
to achieve its investment objective through exposure to a broad portfolio of investment grade debt securities 
(e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) 
or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)) of U.S. and non-U.S. corporate and government 
issuers while excluding securities of corporate and certain non-sovereign government issuers based upon 
the Portfolio&#x2019;s social issue screens. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects that 
the Portfolio will primarily invest in the obligations of issuers that are in developed countries.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, at least 80% of the Portfolio&#x2019;s net assets will 
be invested in fixed income securities considered to be investment grade quality.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income Portfolio will be managed with a view to capturing expected 
credit premiums and expected term premiums. The term &#x201c;expected credit premium&#x201d; means the expected 
incremental return on investment for holding obligations considered to have greater credit risk than 
direct obligations of the U.S. Treasury, and &#x201c;expected term premium&#x201d; means the expected incremental 
return on investment for holding securities having longer-term maturities as compared to shorter-term 
maturities. In managing the Portfolio, the Advisor will increase or decrease investment exposure to intermediate-term 
securities depending on the expected term premium and also increase or decrease investment exposure to 
non-government securities depending on the expected credit premium. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income 
Portfolio invests in U.S. and foreign corporate debt securities with an investment grade credit rating 
and may emphasize such investments in U.S. and foreign corporate debt securities rated A+ to BBB- by 
S&amp;amp;P or Fitch or A1 to Baa3 by Moody&#x2019;s). The Portfolio will increase or decrease investment exposure 
to these lower rated debt securities depending on the expected credit premium. The Portfolio will also 
invest in obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
bank obligations, commercial paper, repurchase agreements, money market funds, obligations of other domestic 
and foreign issuers having investment grade ratings, securities of domestic or foreign issuers denominated 
in U.S. dollars but not trading in the United States, and obligations of supranational organizations. 
The fixed income securities in which the Portfolio invests are considered investment grade at the time 
of purchase. In addition, the Portfolio is authorized to invest more than 25% of its total assets in 
U.S. Treasury bonds, bills and notes, and obligations of federal agencies and its instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Social Fixed Income Portfolio primarily invests in securities that mature within twenty years from the 
date of settlement. Under normal circumstances, the Portfolio will generally maintain a weighted average 
duration of no more than one quarter year greater than, and no less than one year below, the weighted 
average duration of the Bloomberg U.S. Aggregate Bond Index, which was approximately 5.98 years as of 
December 31, 2025. From time to time, the Portfolio may deviate from this duration range when the Advisor 
determines it to be appropriate under the circumstances. Duration is a measure of the sensitivity of 
a security&#x2019;s price to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive 
it will be to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income Portfolio&#x2019;s 
investments may include securities denominated in foreign currencies. The Portfolio intends to hedge 
foreign currency exposure to attempt to protect against uncertainty in the level of future foreign currency 
rates. The Portfolio may enter into foreign currency forward contracts to hedge against fluctuations 
in currency exchange rates or to transfer balances from one currency to another. The Portfolio also may 
enter into credit default swaps on issuers or indices to buy or sell credit protection to hedge its credit 
exposure; gain market or issuer exposure without owning the underlying securities; or increase the Portfolio&#x2019;s 
total return. The Portfolio also may purchase or sell futures contracts and options on futures contracts, 
to hedge its currency exposure or to hedge its interest rate exposure or for non-hedging purposes, such 
as a substitute for direct investment or to increase or decrease market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Social Fixed Income Portfolio seeks to purchase securities that are consistent with the Portfolio&#x2019;s 
social issue screens, which are monitored by, or based upon information from, an independent third party. 
The Portfolio seeks to exclude from its investment portfolio securities of those companies that are identified 
by the Portfolio&#x2019;s social issue screens, as further discussed below. The Portfolio&#x2019;s social issue 
screens are designed to identify companies that: (1) earn at least 10% of their total annual revenue 
through the production and/or sale of conventional or nuclear weapons, their weapon systems, or key intended 
components of these products, or the provision of weapon systems support and service&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; related 
to nuclear weapons, such as the repair and maintenance of nuclear weapons&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (2) 
have demonstrated complicity in genocide in Sudan, for example, by having ties to the Sudanese military 
or government, selling or distributing military equipment to a party based in Sudan or operating within 
Sudan borders, or generating 10% or more of its total assets or revenues in Sudan from the oil, mineral 
or power sectors; (3) earn at least 10% of their total annual revenue through the production and/or sale 
of tobacco (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover products designed as an aid to 
quit smoking)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;alcoholic beverages as 
an intoxicating agent &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;(&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this criteria does not cover 
packaging such as bottles, cans, corks or caps)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;, or cannabis products; 
(4) earn at least 10% of their total annual revenue from the ownership or operation of gambling facilities, 
licensing their brand name to gambling products, or providing support or services to the gambling industry; 
(5) directly participate in abortions, or develop or manufacture abortive agents or contraceptives; (6) 
earn at least 10% of their total annual revenue from the retail, distribution or production of pornographic 
products (this criteria does not cover companies that offer content &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;sharing platforms that are not pornography focused but allow 
third-party users to upload pornographic content; (7) are involved in the production of landmines, cluster 
munitions, or key intended components of such weapons; (8) &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;produce firearms (i.e., 
using an explosive charge as a propellant) intended for civilian use&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (9)&#160;have 
had &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;involvement in severe child labor controversies (factors that may be considered 
for determining severity include, but are not limited to, a history of involvement in child labor-related 
legal cases, widespread or egregious instances of child labor, resistance to improved practices, and 
criticism by non-governmental organizations and/or other third-party observers)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (10) 
conduct stem cell research using cells derived from human embryos or fetal tissue, or use fetal cell 
lines in the development of vaccines or other biopharmaceuticals; (11) operate or manage, or provide 
staffing services to, for-profit correctional and/or detention facilities (&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;this 
criteria does not cover provision of maintenance or non-management services, including staffing for such 
services)&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;; (12) have material involvement in severe environmental, social or governance 
controversies that indicate operations inconsistent with responsible business conduct standards, such 
as those defined by the United Nations Global Compact Principles and the Organization for Economic Co-operation 
and Development Guidelines for Multinational Enterprises; (13) have relatively high carbon intensity 
or potential emissions from reserves or scaled potential emissions from reserves; and/or (14) have thermal 
or metallurgical coal reserves.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;In addition to excluding securities of 
corporate issuers based upon the Social Fixed Income Portfolio&#x2019;s social issue screens, the Portfolio 
also will generally exclude securities of supranational organizations and certain non-sovereign governmental 
agencies (both U.S. and non-U.S.) that may be less sustainable as compared to other similar issuers, 
based upon considerations 13 and 14. The Portfolio&#x2019;s investments in securities of U.S. and non-U.S. 
sovereign issuers are not subject to the other screens identified above. The Advisor, however, considers 
securities issued by the U.S. Treasury and certain U.S. agencies and instrumentalities that are not subject 
to the Portfolio&#x2019;s social issue screens identified above to be consistent with the Portfolio&#x2019;s strategy 
of investing in social investments.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Social Fixed Income 
Portfolio may modify this list of social issue screens, at any time, without prior shareholder approval 
or notice. (See &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;Additional Information on Investment Objectives and Policies&#x2014;Applying 
the Portfolios&#x2019; Social Criteria&#x201d;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; in this Prospectus.)&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_PrincipalRisks2_S000053205Summary100Member"
      id="ixv-112398">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x45x11"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_RiskLoseMoneyMember_S000053205Summary100Member"
      id="ixv-277518">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_RiskNotInsuredMember_S000053205Summary100Member"
      id="ixv-277519">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_MarketRisk2_S000053205Summary100Member"
      id="ixv-112404">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_SocialInvestmentRisk2_S000053205Summary100Member"
      id="ixv-112409">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Social Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund with social issue screens may limit the number of investment opportunities 
available to the fund, and as a result, at times the Portfolio may underperform funds that are not subject 
to such special investment conditions. For example, a fund with social issue screens may decline to purchase 
certain securities when it is otherwise advantageous to do so, or may sell certain securities for social 
reasons when it is otherwise disadvantageous to do so. There is no guarantee that a fund&#x2019;s investments 
will reflect the social considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_InterestRateRisk2_S000053205Summary100Member"
      id="ixv-112414">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_CreditRisk2_S000053205Summary100Member"
      id="ixv-112419">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;United States, such as the Federal Housing Administration and Ginnie Mae, present 
little credit risk. Other securities issued by agencies and instrumentalities sponsored by the U.S. Government, 
that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, subject to certain 
limitations, and securities issued by agencies and instrumentalities sponsored by the U.S. Government 
that are sponsored by the credit of the issuing agencies, such as Freddie Mac and Fannie Mae, are subject 
to a greater degree of credit risk. U.S. government agency securities issued or guaranteed by the credit 
of the agency may still involve a risk of non-payment of principal and/or interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_IncomeRisk2_S000053205Summary100Member"
      id="ixv-112429">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, the 
proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_CallRisk2_S000053205Summary100Member"
      id="ixv-112434">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_ForeignSecuritiesandCurrenciesRisk2_S000053205Summary100Member"
      id="ixv-112439">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_ForeignGovernmentDebtRisk2_S000053205Summary100Member"
      id="ixv-112445">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_DerivativesRisk2_S000053205Summary100Member"
      id="ixv-112450">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward 
contracts, whose value is derived from that of other assets, rates or indices. Derivatives can be used 
for hedging (attempting to reduce risk by offsetting one investment position with another) or non-hedging 
purposes. Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy 
will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause 
losses if the market moves in a manner different from that anticipated by a fund or if the cost of the 
derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally not possible 
to precisely match the foreign currency exposure of such foreign currency forward contracts to the value 
of the securities involved due to fluctuations in the market values of such securities and cash flows 
into and out of a fund between the date a foreign currency forward contract is entered into and the date 
it expires. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with 
respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying 
asset, rate or index, and a fund could lose more than the principal amount invested. Additional risks 
are associated with the use of swaps including counterparty and credit risk (the risk that the other 
party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_LiquidityRisk2_S000053205Summary100Member"
      id="ixv-112458">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity 
risk exists when particular portfolio investments are difficult to purchase or sell. To the extent that 
a fund holds illiquid investments, the fund&#x2019;s performance may be reduced due to an inability to sell 
the investments at opportune prices or times. Liquid portfolio investments may become illiquid or less 
liquid after purchase by a fund due to low trading volume, adverse investor perceptions, credit tightening 
and/or other market developments. Liquidity risk includes the risk that a fund will experience significant 
net redemptions at a time when it cannot find willing buyers for its portfolio securities or can only 
sell its portfolio securities at a material loss or at increased costs. Liquidity risk can be more pronounced 
in periods of market turmoil or in situations where ownership of shares of a fund are concentrated in 
one or a few investors. Investments that are illiquid or that trade in lower volumes may be more difficult 
to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_SecuritiesLendingRisk2_S000053205Summary100Member"
      id="ixv-112463">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_OperationalRisk2_S000053205Summary100Member"
      id="ixv-112467">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_CyberSecurityRisk2_S000053205Summary100Member"
      id="ixv-112472">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277520"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-112482">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277521">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277522"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277523">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277524">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277525">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277526">DFA Social 
Fixed Income Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277527">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277528">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277529"
      unitRef="pure">0.0663</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277530">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277531"
      unitRef="pure">-0.0638</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277532">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277533">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277534">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277535"
      unitRef="pure">0.0707</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277536"
      unitRef="pure">-0.0013</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160405_20251231_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="_8456_"
      unitRef="pure">0.0193</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277538">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277539"
      unitRef="pure">0.0540</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277540"
      unitRef="pure">-0.0142</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160405_20251231_AfterTaxesOnDistributionsMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="_8460_"
      unitRef="pure">0.0082</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      id="ixv-277542">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277543"
      unitRef="pure">0.0417</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277544"
      unitRef="pure">-0.0064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160405_20251231_AfterTaxesOnDistributionsAndSalesMember_C000167354Member_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="_8464_"
      unitRef="pure">0.0100</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSAggregateBondIndex3344_S000053205Member_S000053205Summary100Member"
      id="ixv-277546">Bloomberg U.S. Aggregate Bond Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000053205Member_S000053205Summary100Member"
      id="ixv-277547">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSAggregateBondIndex3345_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277548"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSAggregateBondIndex3345_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="ixv-277549"
      unitRef="pure">-0.0036</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160405_20251231_BloombergUSAggregateBondIndex3345_S000053205Member_S000053205Summary100Member"
      decimals="INF"
      id="_8469_"
      unitRef="pure">0.0172</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277551"> U.S. Sustainability Core 1 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277552"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116795">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Sustainability Core 1 Portfolio (the &#x201c;Portfolio&#x201d;) is long-term capital 
appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277553"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116802">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277554">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277555">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277556"
      unitRef="pure">0.0014</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277557"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277558"
      unitRef="pure">0.0017</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277559">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116861">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277560"
      unitRef="usd">17</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277561"
      unitRef="usd">17</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277562"
      unitRef="usd">55</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277563"
      unitRef="usd">55</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277564"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277565"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277566"
      unitRef="usd">96</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277567"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277568"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277569"
      unitRef="usd">217</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277570">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116888">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;13%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277571"
      unitRef="pure">0.13</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277572"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116898">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Sustainability Core 1 Portfolio&#x2019;s investment 
objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach 
that combines research, portfolio design, portfolio management, and trading functions. As further described 
below, the Portfolio&#x2019;s design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s 
research, while balancing risk through broad diversification across companies and sectors. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Sustainability 
Core 1 Portfolio is designed to purchase a broad and diverse group of securities within a market capitalization 
weighted universe (e.g., the larger the company, the greater the proportion of the universe it &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;represents) of U.S. operating companies (the &#x201c;U.S. Universe&#x201d;). The Portfolio 
invests in companies of all sizes and seeks to moderately increase the Portfolio&#x2019;s exposure to smaller 
capitalization, lower relative price, and higher profitability companies as compared to their representation 
in the U.S. Universe, while adjusting the composition of the Portfolio based on sustainability considerations. 
The Portfolio may seek to achieve a moderately increased exposure to smaller capitalization, lower relative 
price, and higher profitability companies by decreasing the allocation of the Portfolio&#x2019;s assets to 
larger capitalization, higher relative price, or lower profitability companies relative to their weight 
in the U.S. Universe. An equity issuer is considered to have a high relative price (i.e., a growth stock) 
primarily because it has a high price in relation to its book value. An equity issuer is considered to 
have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its 
book value. In assessing relative price, the Advisor may consider additional factors such as price to 
cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price and profitability are subject to change from time to time. 
Additionally, the representation of securities in the Portfolio as compared to their representation in 
the U.S. Universe may be affected by the Portfolio's sustainability considerations. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Sustainability Core 1 Portfolio will invest 
at least 80% of its net assets in equity securities of U.S. companies. The Advisor generally defines 
a U.S. company as one that is listed and principally traded on a securities exchange in the United States 
that is deemed appropriate by the Advisor. The percentage by which the Portfolio&#x2019;s allocation to securities 
of the largest U.S. high relative price companies is reduced will change due to market movements, sustainability 
considerations and other factors. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the U.S. Sustainability 
Core 1 Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in assets 
divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics 
are subject to change from time to time. In addition, the Advisor seeks to reduce trading costs using 
a flexible trading approach that looks for opportunities to participate in the available market liquidity, 
while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Sustainability 
Core 1 Portfolio also may purchase or sell futures contracts and options on futures contracts for U.S. 
equity securities and indices, to increase or decrease equity market exposure based on actual or expected 
cash inflows to or outflows from the Portfolio. The above-referenced investments are not subject to, 
although they may incorporate, the Portfolio&#x2019;s sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
U.S. Sustainability Core 1 Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor intends to take into account certain sustainability considerations when making investment decisions 
for the U.S. Sustainability Core 1 Portfolio. Relative to a fund without these considerations that otherwise 
has the same investment objective, strategies, and policies as the Portfolio, the Portfolio will generally 
have excluded, and have less overall weight in, securities of companies that, according to the Portfolio&#x2019;s 
sustainability considerations, may be less sustainable as compared to other companies in the Portfolio&#x2019;s 
investment universe. Similarly, relative to such a fund, the Portfolio will generally have more overall 
weight in securities of companies that, according to the Portfolio&#x2019;s sustainability considerations, 
may be more sustainable as compared to other companies in the Portfolio&#x2019;s investment universe. In particular, 
the Advisor ranks companies (i) relative to the broader equity market based on potential emissions from 
reserves and scaled potential emissions from reserves and the securities of the worst-ranking companies 
are generally underweighted or excluded, (ii) relative to the applicable universe of securities based 
on carbon intensity and the securities of the worst-ranking companies are generally underweighted or 
excluded and (iii) relative to their sector peers based primarily on carbon intensity, but also considering 
several other factors, including controversies related to land use and biodiversity, toxic spills and 
releases, operational waste, and water management, and the securities of the worst-ranking companies 
are generally underweighted or excluded and the securities of the remaining companies are generally overweighted 
or neutral-weighted. In addition, the Advisor seeks to exclude securities of companies based on sustainability 
considerations relating to coal, factory farming, palm oil, cluster munitions and landmines, tobacco, 
child labor, civilian firearms, private prisons, and material involvement in severe environmental, social, 
or governance controversies that indicate operations inconsistent with responsible business conduct standards 
(such as those defined by the United Nations Global Compact Principles and the Organization for Economic 
Co-operation and Development Guidelines for Multinational Enterprises). For a more detailed description 
of these sustainability considerations, see &#x201c;Applying the Portfolios&#x2019; Sustainability Considerations&#x201d;. 
The Advisor engages third party service providers to provide research information &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;relating to the Portfolio&#x2019;s sustainability considerations with respect to securities 
in the Portfolio, where information is available from such providers. The Advisor also may use, or supplement 
third party service providers&#x2019; data with, proprietary research relating to certain sustainability considerations 
where information is not available or has not been obtained from third party service providers engaged 
by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor periodically reviews the Portfolio&#x2019;s 
sustainability considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; may periodically modify, 
add, or remove sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_PrincipalRisks2_S000020422Summary101Member"
      id="ixv-116919">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_RiskLoseMoneyMember_S000020422Summary101Member"
      id="ixv-277573">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_RiskNotInsuredMember_S000020422Summary101Member"
      id="ixv-277574">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_EquityMarketRisk2_S000020422Summary101Member"
      id="ixv-116925">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_ProfitabilityInvestmentRisk2_S000020422Summary101Member"
      id="ixv-116930">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_ValueInvestmentRisk2_S000020422Summary101Member"
      id="ixv-116934">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_SmallandMid-CapCompanyRisk2_S000020422Summary101Member"
      id="ixv-116939">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_SustainabilityConsiderationInvestmentRisk2_S000020422Summary101Member"
      id="ixv-116944">&lt;p style="font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability Consideration 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that takes into account sustainability considerations 
may limit the number of investment opportunities available to the fund, and as a result, at times, may 
underperform funds that are not subject to such sustainability considerations. For example, a fund may 
decline to purchase, or underweight its investment in, certain securities due to sustainability considerations 
when other investment considerations would suggest that a more significant investment in such securities 
would be advantageous. A fund may also overweight its investment in certain securities due to sustainability 
considerations when other investment considerations would suggest that a lesser investment in such securities 
would be advantageous. In addition, a fund may sell or retain certain securities due to sustainability 
considerations when it is otherwise disadvantageous to do so. The sustainability considerations may also 
cause a fund&#x2019;s industry allocations to deviate from those of funds without these considerations and 
of conventional benchmarks. The Advisor may also not be able to assess the sustainability of each company 
with securities eligible for purchase. For example, the Advisor may not be able to determine all of the 
sustainability considerations for each company because the third party service providers may not have 
data on the entire universe of companies with securities considered by the Advisor, or may not have information 
with respect to each factor considered as a sustainability consideration. Furthermore, &#x201c;sustainability&#x201d; 
is not uniformly defined, and there are significant differences in interpretations of what it means for 
a company to meet sustainability criteria. A fund&#x2019;s exposure to companies, industries and sectors of 
the market may be affected by sustainability data obtained that may be inaccurate and the Advisor&#x2019;s 
assessment of a company&#x2019;s sustainability may differ from assessments made by other funds, managers, 
or investors. As a result, there is no guarantee that a fund&#x2019;s investments will reflect the sustainability 
considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_DerivativesRisk2_S000020422Summary101Member"
      id="ixv-116949">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging 
purposes may be considered to &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;carry more risk than other types of investments. When a fund uses derivatives, 
the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject 
to a number of risks including counterparty, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_SecuritiesLendingRisk2_S000020422Summary101Member"
      id="ixv-116958">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_OperationalRisk2_S000020422Summary101Member"
      id="ixv-116962">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_CyberSecurityRisk2_S000020422Summary101Member"
      id="ixv-116967">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277575"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-116977">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277576">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277577"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277578">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277579">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277580">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277581">U.S. 
Sustainability Core 1 Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277582">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277583">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277584"
      unitRef="pure">0.2309</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277585">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277586"
      unitRef="pure">-0.2244</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277587">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277588">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277589">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277590"
      unitRef="pure">0.1593</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277591"
      unitRef="pure">0.1343</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277592"
      unitRef="pure">0.1455</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277593">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277594"
      unitRef="pure">0.1566</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277595"
      unitRef="pure">0.1307</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277596"
      unitRef="pure">0.1407</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      id="ixv-277597">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277598"
      unitRef="pure">0.0959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277599"
      unitRef="pure">0.1069</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057263Member_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277600"
      unitRef="pure">0.1212</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index3346_S000020422Member_S000020422Summary101Member"
      id="ixv-277601">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-277602">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index3347_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277603"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index3347_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277604"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_Russell3000Index3347_S000020422Member_S000020422Summary101Member"
      decimals="INF"
      id="ixv-277605"
      unitRef="pure">0.1429</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20251031_20251031_S000020422Member_S000020422Summary101Member"
      id="ixv-117236">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The implementation and 
management of the Advisor&#x2019;s &#x201c;Sustainability&#x201d; portfolios, including without limitation, the U.S. 
Sustainability Core 1 Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 B1 and 8,438,092 
B2.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277606"> U.S. Sustainability Targeted 
Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277607"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117290">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the U.S. Sustainability Targeted Value Portfolio (the &#x201c;Portfolio&#x201d;) is to 
achieve long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277608"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117297">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277609">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277610">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277611"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277612"
      unitRef="pure">0.0005</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277613"
      unitRef="pure">0.0033</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277614">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117356">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277615"
      unitRef="usd">34</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277616"
      unitRef="usd">34</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277617"
      unitRef="usd">106</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277618"
      unitRef="usd">106</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277619"
      unitRef="usd">185</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277620"
      unitRef="usd">185</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277621"
      unitRef="usd">185</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277622"
      unitRef="usd">418</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277623"
      unitRef="usd">418</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277624"
      unitRef="usd">418</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277625">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117383">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;20%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277626"
      unitRef="pure">0.20</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277627"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117393">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the U.S. Sustainability Targeted 
Value Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies and sectors. The Advisor&#x2019;s portfolio management and trading processes further balance 
those long-term drivers of expected returns with shorter-term drivers of expected returns and trading 
costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Sustainability Targeted Value Portfolio is designed to purchase a broad 
and diverse group of the readily marketable securities of U.S. small and mid-cap companies that the Advisor 
determines to be lower relative price stocks with higher profitability, while adjusting the composition 
of the Portfolio based on sustainability &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;considerations. A company&#x2019;s market capitalization is the number of its shares 
outstanding times its price per share. Under a market capitalization weighted approach, companies with 
higher market capitalizations generally represent a larger proportion of the Portfolio than companies 
with relatively lower market capitalizations. The representation in the Portfolio of an eligible company 
as compared to its representation in the U.S. small and mid-cap markets may be affected by the Portfolio&#x2019;s 
sustainability considerations. The Portfolio may emphasize certain stocks, including smaller capitalization 
companies, lower relative price stocks, and/or higher profitability stocks as compared to their representation 
in the small-and mid-cap value segment of the U.S. market. An equity issuer is considered to have a low 
relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. 
In assessing relative price, the Advisor may consider additional factors such as price to cash flow or 
price to earnings ratios. An equity issuer is considered to have high profitability because it has high 
earnings or profits from operations in relation to its book value or assets. The criteria the Advisor 
uses for assessing relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the U.S. Sustainability Targeted Value Portfolio 
will invest at least 80% of its net assets in securities of U.S. companies.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor will consider for purchase by the U.S. Sustainability Targeted Value Portfolio securities of 
companies whose market capitalizations are generally smaller than the 500th largest eligible company 
within the U.S. Universe. The Advisor generally defines the U.S. Universe as a market capitalization 
weighted set (e.g., the larger the company, the greater the proportion of the U.S. Universe it represents) 
of U.S. operating companies listed on securities exchanges in the United States that are deemed appropriate 
by the Advisor. Total market capitalization is based on the market capitalization of eligible operating 
companies within the U.S. Universe. Based on market capitalization data as of December 31, 2025, the 
market capitalization of a company smaller than the 500th largest eligible company within the U.S. Universe 
would be below $15,092 million. This threshold will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the U.S. Sustainability Targeted Value Portfolio&#x2019;s exposure to 
an eligible company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s 
price momentum, short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment 
characteristics, the Advisor considers ratios such as recent changes in assets divided by total assets. 
The criteria the Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change 
from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach 
that looks for opportunities to participate in the available market liquidity, while managing turnover 
and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Sustainability Targeted Value Portfolio may purchase 
or sell futures contracts and options on futures contracts for U.S. equity securities and indices, to 
increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from 
the Portfolio. The above referenced investment are not subject to, although they may incorporate, the 
Portfolio&#x2019;s sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The U.S. Sustainability Targeted 
Value Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor intends to take into account certain sustainability considerations when making investment decisions 
for the U.S. Sustainability Targeted Value Portfolio. Relative to a fund without these considerations 
that otherwise has the same investment objective, strategies, and policies as the Portfolio, the Portfolio 
will generally have excluded, and have less overall weight in, securities of companies that, according 
to the Portfolio&#x2019;s sustainability considerations, may be less sustainable as compared to other companies 
in the Portfolio&#x2019;s investment universe. Similarly, relative to such a fund, the Portfolio will generally 
have more overall weight in securities of companies that, according to the Portfolio&#x2019;s sustainability 
considerations, may be more sustainable as compared to other companies in the Portfolio&#x2019;s investment 
universe. In particular, the Advisor ranks companies relative to the applicable universe of securities 
based on carbon intensity and scaled potential emissions from reserves and the securities of the worst-ranking 
companies are generally excluded. In addition, the Advisor seeks to exclude securities of companies based 
on sustainability considerations relating to coal, factory farming, palm oil, cluster munitions and landmines, 
tobacco, child labor, civilian firearms, private prisons, and material involvement in severe environmental, 
social, or governance controversies that indicate operations inconsistent with responsible business conduct 
standards (such as those defined by the United Nations Global Compact Principles and the Organization 
for Economic Co-operation and Development Guidelines for Multinational Enterprises). For a more detailed 
description of these sustainability considerations, see &#x201c;Applying the Portfolios&#x2019; Sustainability 
Considerations&#x201d;. The Advisor engages third party service providers to provide research information 
relating to the Portfolio&#x2019;s sustainability considerations with respect to &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;securities in the Portfolio, where information is available from such providers. 
The Advisor also may use, or supplement third party service providers&#x2019; data with, proprietary research 
relating to certain sustainability considerations where information is not available or has not been 
obtained from third party service providers engaged by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor periodically reviews the Portfolio&#x2019;s sustainability considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
may periodically modify, add, or remove sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_PrincipalRisks2_S000068937Summary102Member"
      id="ixv-117415">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_RiskLoseMoneyMember_S000068937Summary102Member"
      id="ixv-277628">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_RiskNotInsuredMember_S000068937Summary102Member"
      id="ixv-277629">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_EquityMarketRisk2_S000068937Summary102Member"
      id="ixv-117421">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_SmallandMid-CapCompanyRisk2_S000068937Summary102Member"
      id="ixv-117426">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_ValueInvestmentRisk2_S000068937Summary102Member"
      id="ixv-117431">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a 
whole and an investment strategy purchasing these securities may cause a fund to at times underperform 
equity funds that use other investment strategies. Value stocks can react differently to political, economic, 
and industry developments than the market as a whole and other types of stocks. Value stocks also may 
underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_ProfitabilityInvestmentRisk2_S000068937Summary102Member"
      id="ixv-117436">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_SustainabilityConsiderationInvestmentRisk2_S000068937Summary102Member"
      id="ixv-117440">&lt;p style="font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability 
Consideration Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that takes into account 
sustainability considerations may limit the number of investment opportunities available to the fund, 
and as a result, at times, may underperform funds that are not subject to such sustainability considerations. 
For example, a fund may decline to purchase, or underweight its investment in, certain securities due 
to sustainability considerations when other investment considerations would suggest that a more significant 
investment in such securities would be advantageous. A fund may also overweight its investment in certain 
securities due to sustainability considerations when other investment considerations would suggest that 
a lesser investment in such securities would be advantageous. In addition, a fund may sell or retain 
certain securities due to sustainability considerations when it is otherwise disadvantageous to do so. 
The sustainability considerations may also cause a fund&#x2019;s industry allocations to deviate from those 
of funds without these considerations and of conventional benchmarks. The Advisor may also not be able 
to assess the sustainability of each company with securities eligible for purchase. For example, the 
Advisor may not be able to determine all of the sustainability considerations for each company because 
the third party service providers may not have data on the entire universe of companies with securities 
considered by the Advisor, or may not have information with respect to each factor considered as a sustainability 
consideration. Furthermore, &#x201c;sustainability&#x201d; is not uniformly defined, and there are significant 
differences in interpretations of what it means for a company to meet sustainability criteria. A fund&#x2019;s 
exposure to companies, industries and sectors of the market may be affected by sustainability data obtained 
that may be inaccurate and the Advisor&#x2019;s assessment of a company&#x2019;s sustainability may differ from 
assessments made by other funds, managers, or investors. As a result, there is no guarantee that a fund&#x2019;s 
investments will reflect the sustainability considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_DerivativesRisk2_S000068937Summary102Member"
      id="ixv-117445">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;carry more risk than other types of investments. When a fund uses derivatives, 
the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject 
to a number of risks including counterparty, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_SecuritiesLendingRisk2_S000068937Summary102Member"
      id="ixv-117454">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_OperationalRisk2_S000068937Summary102Member"
      id="ixv-117458">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_CyberSecurityRisk2_S000068937Summary102Member"
      id="ixv-117463">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277630"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117473">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277631">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277632"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277633">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277634">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277635">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277636">U.S. 
Sustainability Targeted Value Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277637">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277638">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277639"
      unitRef="pure">0.2084</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277640">2021-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277641"
      unitRef="pure">-0.1262</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277642">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277643">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277644">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277645"
      unitRef="pure">0.1002</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277646"
      unitRef="pure">0.1141</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200707_20251231_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="_8623_"
      unitRef="pure">0.1798</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277648">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277649"
      unitRef="pure">0.0964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277650"
      unitRef="pure">0.1058</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200707_20251231_AfterTaxesOnDistributionsMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="_8627_"
      unitRef="pure">0.1710</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      id="ixv-277652">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277653"
      unitRef="pure">0.0617</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277654"
      unitRef="pure">0.0884</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200707_20251231_AfterTaxesOnDistributionsAndSalesMember_C000220291Member_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="_8631_"
      unitRef="pure">0.1443</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell2000ValueIndex3348_S000068937Member_S000068937Summary102Member"
      id="ixv-277656">Russell 2000&#xae; 
Value Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-277657">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell2000ValueIndex3349_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277658"
      unitRef="pure">0.1259</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell2000ValueIndex3349_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277659"
      unitRef="pure">0.0888</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200707_20251231_Russell2000ValueIndex3349_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="_8636_"
      unitRef="pure">0.1516</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_Russell3000Index3350_S000068937Member_S000068937Summary102Member"
      id="ixv-277661">Russell 3000&#xae; 
Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_Russell3000Index3351_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277662"
      unitRef="pure">0.1715</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_Russell3000Index3351_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="ixv-277663"
      unitRef="pure">0.1315</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200707_20251231_Russell3000Index3351_S000068937Member_S000068937Summary102Member"
      decimals="INF"
      id="_8641_"
      unitRef="pure">0.1632</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20251031_20251031_S000068937Member_S000068937Summary102Member"
      id="ixv-117801">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
implementation and management of the Advisor&#x2019;s &#x201c;Sustainability&#x201d; portfolios, including without limitation, 
the U.S. Sustainability Targeted Value Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 
B1 and 8,438,092 B2.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277665"> International Sustainability 
Core 1 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277666"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-117854">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Sustainability Core 1 Portfolio (the &#x201c;Portfolio&#x201d;) is long-term 
capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277667"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-117861">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277668">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277669">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277670"
      unitRef="pure">0.0020</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277671"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277672"
      unitRef="pure">0.0024</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277673">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-117920">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277674"
      unitRef="usd">25</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277675"
      unitRef="usd">25</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277676"
      unitRef="usd">77</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277677"
      unitRef="usd">77</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277678"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277679"
      unitRef="usd">135</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277680"
      unitRef="usd">135</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277681"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277682"
      unitRef="usd">306</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277683"
      unitRef="usd">306</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277684">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-117947">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277685"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277686"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-117957">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Sustainability 
Core 1 Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Sustainability Core 1 Portfolio is designed 
to purchase a broad and diverse group of securities within a market capitalization weighted universe 
(e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. 
companies associated with developed markets that have been authorized for &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;investment by the Advisor&#x2019;s Investment Committee (the &#x201c;International Universe&#x201d;). 
The Portfolio invests in companies of all sizes and seeks to moderately increase the Portfolio&#x2019;s exposure 
to smaller capitalization, lower relative price, and higher profitability companies as compared to their 
representation in the International Universe, while adjusting the composition of the Portfolio based 
on sustainability considerations. The Portfolio may seek to achieve a moderately increased exposure to 
smaller capitalization, lower relative price, and higher profitability companies by decreasing the allocation 
of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower profitability companies 
relative to their weight in the International Universe. An equity issuer is considered to have a high 
relative price (i.e., a growth stock) primarily because it has a high price in relation to its book value. 
An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it 
has a low price in relation to its book value. In assessing relative price, the Advisor may consider 
additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered 
to have high profitability because it has high earnings or profits from operations in relation to its 
book value or assets. The criteria the Advisor uses for assessing relative price and profitability are 
subject to change from time to time. Additionally, the representation of securities in the Portfolio 
as compared to their representation in the International Universe may be affected by the Portfolio's 
sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Sustainability Core 1 Portfolio intends 
to purchase securities of companies associated with developed market countries that the Advisor has designated 
as approved markets. As a non-fundamental policy, under normal circumstances, the Portfolio will invest 
at least 80% of its net assets in equity securities. The Advisor determines company size on a country 
or region specific basis and based primarily on market capitalization. The percentage by which the Portfolio&#x2019;s 
allocation to securities of the largest high relative price companies is reduced will change due to market 
movements, sustainability considerations and other factors. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the International Sustainability Core 1 Portfolio&#x2019;s exposure to an eligible company, or exclude 
a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, 
and investment characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor considers 
ratios such as recent changes in assets divided by total assets. The criteria the Advisor uses for assessing 
a company&#x2019;s investment characteristics are subject to change from time to time. In addition, the Advisor 
seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate 
in the available market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Sustainability Core 1 Portfolio may gain exposure to companies associated with approved 
markets by purchasing equity securities in the form of depositary receipts, which may be listed or traded 
outside the issuer&#x2019;s domicile country. The Portfolio may purchase or sell futures contracts and options 
on futures contracts for foreign or U.S. equity securities and indices, to increase or decrease equity 
market exposure based on actual or expected cash inflows to or outflows from the Portfolio. Because many 
of the Portfolio&#x2019;s investments may be denominated in foreign currencies, the Portfolio may enter into 
foreign currency exchange transactions, including foreign currency forward contracts, in connection with 
the settlement of foreign securities or to transfer cash balances from one currency to another currency. 
The above-referenced investments are not subject to, although they may incorporate, the Portfolio&#x2019;s 
sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Sustainability Core 1 Portfolio may lend 
its portfolio securities to generate additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor intends to 
take into account certain sustainability considerations when making investment decisions for the International 
Sustainability Core 1 Portfolio. Relative to a fund without these considerations that otherwise has the 
same investment objective, strategies, and policies as the Portfolio, the Portfolio will generally have 
excluded, and have less overall weight in, securities of companies that, according to the Portfolio&#x2019;s 
sustainability considerations, may be less sustainable as compared to other companies in the Portfolio&#x2019;s 
investment universe. Similarly, relative to such a fund, the Portfolio will generally have more overall 
weight in securities of companies that, according to the Portfolio&#x2019;s sustainability considerations, 
may be more sustainable as compared to other companies in the Portfolio&#x2019;s investment universe. In particular, 
the Advisor ranks companies (i) relative to the broader equity market based on potential emissions from 
reserves and scaled potential emissions from reserves and the securities of the worst-ranking companies 
are generally underweighted or excluded, (ii) relative to the applicable universe of securities based 
on carbon intensity and the securities of the worst-ranking companies are generally underweighted or 
excluded and (iii) relative to their sector peers based primarily on carbon intensity, but also considering 
several other factors, including controversies related to land use and biodiversity, toxic spills and 
releases, operational waste, and water management, and the securities of the worst-ranking companies 
are generally underweighted or excluded and the securities of the remaining companies are generally overweighted 
or neutral-weighted. In &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;addition, the Advisor seeks to exclude securities of companies based on sustainability 
considerations relating to coal, factory farming, palm oil, cluster munitions and landmines, tobacco, 
child labor, civilian firearms, private prisons, and material involvement in severe environmental, social, 
or governance controversies that indicate operations inconsistent with responsible business conduct standards 
(such as those defined by the United Nations Global Compact Principles and the Organization for Economic 
Co-operation and Development Guidelines for Multinational Enterprises). For a more detailed description 
of these sustainability considerations, see &#x201c;Applying the Portfolios&#x2019; Sustainability Considerations&#x201d;. 
The Advisor engages third party service providers to provide research information relating to the Portfolio&#x2019;s 
sustainability considerations with respect to securities in the Portfolio, where information is available 
from such providers. The Advisor also may use, or supplement third party service providers&#x2019; data with, 
proprietary research relating to certain sustainability considerations where information is not available 
or has not been obtained from third party service providers engaged by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor periodically reviews the Portfolio&#x2019;s sustainability considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
may periodically modify, add, or remove sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_PrincipalRisks2_S000020423Summary103Member"
      id="ixv-117978">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_RiskLoseMoneyMember_S000020423Summary103Member"
      id="ixv-277687">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_RiskNotInsuredMember_S000020423Summary103Member"
      id="ixv-277688">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_EquityMarketRisk2_S000020423Summary103Member"
      id="ixv-117984">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_ProfitabilityInvestmentRisk2_S000020423Summary103Member"
      id="ixv-117989">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_ValueInvestmentRisk2_S000020423Summary103Member"
      id="ixv-117993">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_SmallandMid-CapCompanyRisk2_S000020423Summary103Member"
      id="ixv-117998">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_ForeignSecuritiesandCurrenciesRisk2_S000020423Summary103Member"
      id="ixv-118003">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;unregistered depositary receipts, are under no obligation to distribute shareholder 
communications to the holders of such receipts, or to pass through to them any voting rights with respect 
to the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid 
and there may be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_GeographicFocusRisk2_S000020423Summary103Member"
      id="ixv-118015">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a 
fund focuses its investments in securities of issuers located in a particular country or region, the 
fund may be subjected, to a greater extent than if its investments were less focused, to the risks of 
volatile economic cycles and/or conditions and developments that may be particular to that country or 
region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, 
economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_SustainabilityConsiderationInvestmentRisk2_S000020423Summary103Member"
      id="ixv-118020">&lt;p style="font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability 
Consideration Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that takes into account 
sustainability considerations may limit the number of investment opportunities available to the fund, 
and as a result, at times, may underperform funds that are not subject to such sustainability considerations. 
For example, a fund may decline to purchase, or underweight its investment in, certain securities due 
to sustainability considerations when other investment considerations would suggest that a more significant 
investment in such securities would be advantageous. A fund may also overweight its investment in certain 
securities due to sustainability considerations when other investment considerations would suggest that 
a lesser investment in such securities would be advantageous. In addition, a fund may sell or retain 
certain securities due to sustainability considerations when it is otherwise disadvantageous to do so. 
The sustainability considerations may also cause a fund&#x2019;s industry allocations to deviate from those 
of funds without these considerations and of conventional benchmarks. The Advisor may also not be able 
to assess the sustainability of each company with securities eligible for purchase. For example, the 
Advisor may not be able to determine all of the sustainability considerations for each company because 
the third party service providers may not have data on the entire universe of companies with securities 
considered by the Advisor, or may not have information with respect to each factor considered as a sustainability 
consideration. Furthermore, &#x201c;sustainability&#x201d; is not uniformly defined, and there are significant 
differences in interpretations of what it means for a company to meet sustainability criteria. A fund&#x2019;s 
exposure to companies, industries and sectors of the market may be affected by sustainability data obtained 
that may be inaccurate and the Advisor&#x2019;s assessment of a company&#x2019;s sustainability may differ from 
assessments made by other funds, managers, or investors. As a result, there is no guarantee that a fund&#x2019;s 
investments will reflect the sustainability considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_DerivativesRisk2_S000020423Summary103Member"
      id="ixv-118025">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_SecuritiesLendingRisk2_S000020423Summary103Member"
      id="ixv-118029">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_OperationalRisk2_S000020423Summary103Member"
      id="ixv-118033">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_CyberSecurityRisk2_S000020423Summary103Member"
      id="ixv-118038">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277689"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-118051">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277690">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277691"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277692">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277693">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277694">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277695">International 
Sustainability Core 1 Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277696">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277697">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277698"
      unitRef="pure">0.1905</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277699">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277700"
      unitRef="pure">-0.2502</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277701">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277702">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277703">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277704"
      unitRef="pure">0.3295</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277705"
      unitRef="pure">0.0880</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277706"
      unitRef="pure">0.0886</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277707">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277708"
      unitRef="pure">0.3190</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277709"
      unitRef="pure">0.0813</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277710"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      id="ixv-277711">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277712"
      unitRef="pure">0.2010</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277713"
      unitRef="pure">0.0684</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000057264Member_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277714"
      unitRef="pure">0.0711</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3352_S000020423Member_S000020423Summary103Member"
      id="ixv-277715">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-277716">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3353_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277717"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3353_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277718"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3353_S000020423Member_S000020423Summary103Member"
      decimals="INF"
      id="ixv-277719"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20251031_20251031_S000020423Member_S000020423Summary103Member"
      id="ixv-118301">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The implementation and 
management of the Advisor&#x2019;s &#x201c;Sustainability&#x201d; portfolios, including without limitation, the International 
Sustainability Core 1 Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 B1 and 8,438,092 
B2.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277720"> Emerging Markets Sustainability 
Core 1 Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277721"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118359">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Emerging Markets Sustainability Core 1 Portfolio (the &#x201c;Emerging Markets 
Sustainability Core Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277722"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118366">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277723">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277724">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277725"
      unitRef="pure">0.0035</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277726"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277727"
      unitRef="pure">0.0043</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="_8740_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277729"
      unitRef="pure">0.0042</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277730">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118449">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277731"
      unitRef="usd">43</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277732"
      unitRef="usd">43</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277733"
      unitRef="usd">137</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277734"
      unitRef="usd">137</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277735"
      unitRef="usd">240</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277736"
      unitRef="usd">240</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277737"
      unitRef="usd">240</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277738"
      unitRef="usd">541</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277739"
      unitRef="usd">541</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277740"
      unitRef="usd">541</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277741">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118476">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;6%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277742"
      unitRef="pure">0.06</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277743"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118489">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the Emerging Markets Sustainability Core Portfolio&#x2019;s investment objective, Dimensional Fund 
Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Sustainability Core Portfolio is designed to purchase a broad and diverse group of securities 
within a market capitalization weighted universe (e.g., the larger the company, the greater the proportion 
of the universe it represents) of non-U.S. companies associated with emerging markets authorized for 
investment by the Advisor&#x2019;s Investment Committee (&#x201c;Approved Markets&#x201d;), which may include frontier 
markets (emerging market countries in an earlier stage of development) (the "Emerging Markets Universe"). 
The Portfolio invests in companies of all sizes and seeks to moderately increase the Portfolio&#x2019;s exposure 
to smaller capitalization, lower relative price, and higher profitability companies as compared to their 
representation in the Emerging Markets Universe, while adjusting the composition of the Portfolio based 
on sustainability considerations. The Portfolio may seek to achieve a moderately increased exposure to 
smaller capitalization, lower relative price, and higher profitability companies by decreasing the allocation 
of the Portfolio&#x2019;s assets to larger capitalization, higher relative price, or lower profitability companies 
relative to their weight in the Emerging Markets Universe. An equity issuer is considered to have a high 
relative price (i.e., a growth stock) primarily because it has a high price in relation to its book value. 
An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it 
has a low price in relation to its book value. In assessing relative price, the Advisor may consider 
additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered 
to have high profitability because it has high earnings or profits from operations in relation to its 
book value or assets. The criteria the Advisor uses for assessing relative price and profitability are 
subject to change from time to time. Additionally, the representation of securities in the Portfolio 
as compared to their representation in the Emerging Markets Universe may be affected by the Portfolio's 
sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the Emerging Markets 
Sustainability Core Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based on shorter-term 
considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. 
In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes 
in assets divided by total assets. The criteria the Advisor uses for assessing a company&#x2019;s investment 
characteristics are subject to change from time to time. In addition, the Advisor seeks to reduce trading 
costs using a flexible trading approach that looks for opportunities to participate in the available 
market liquidity, while managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;As 
a non-fundamental policy, under normal circumstances, the Emerging Markets Sustainability Core Portfolio 
will invest at least 80% of its net assets in emerging markets equity investments that are defined in 
the Prospectus as Approved Markets securities. The Portfolio may gain exposure to companies associated 
with Approved Markets by purchasing equity securities in the form of depositary receipts, which may be 
listed or traded outside the issuer&#x2019;s domicile country. The Portfolio may also invest in China A-shares 
(equity securities of companies listed in China) and variable interest entities (special structures that 
utilize contractual arrangements to provide exposure to certain Chinese companies).&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Sustainability Core Portfolio may purchase or sell futures contracts and options on 
futures contracts for Approved Markets or other equity market securities and indices, including those 
of the United&#160;States, to increase or decrease equity market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio. The above-referenced investments are not subject to, although 
they may incorporate, the Portfolio&#x2019;s sustainability considerations.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Emerging Markets Sustainability Core Portfolio may lend its portfolio securities to generate additional 
income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor intends to take into account certain sustainability considerations 
when making investment decisions for the Emerging Markets Sustainability Core Portfolio. Relative to 
a fund without these considerations that otherwise has the same investment objective, strategies, and 
policies as the Portfolio, the Portfolio will generally have excluded, and have less overall weight in, 
securities of companies that, according to the Portfolio&#x2019;s sustainability considerations, may be less 
sustainable as compared to other companies in the Portfolio&#x2019;s investment universe. &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Similarly, relative to such a fund, the Portfolio will generally have more overall 
weight in securities of companies that, according to the Portfolio&#x2019;s sustainability considerations, 
may be more sustainable as compared to other companies in the Portfolio&#x2019;s investment universe. In particular, 
the Advisor ranks companies (i) relative to the broader equity market based on potential emissions from 
reserves and scaled potential emissions from reserves and the securities of the worst-ranking companies 
are generally underweighted or excluded, (ii) relative to the applicable universe of securities based 
on carbon intensity and the securities of the worst-ranking companies are generally underweighted or 
excluded and (iii) relative to their sector peers based primarily on carbon intensity, but also considering 
several other factors, including controversies related to land use and biodiversity, toxic spills and 
releases, operational waste, and water management, and the securities of the worst-ranking companies 
are generally underweighted or excluded and the securities of the remaining companies are generally overweighted 
or neutral-weighted. In addition, the Advisor seeks to exclude securities of companies based on sustainability 
considerations relating to coal, factory farming, palm oil, cluster munitions and landmines, tobacco, 
child labor, civilian firearms, private prisons, and material involvement in severe environmental, social, 
or governance controversies that indicate operations inconsistent with responsible business conduct standards 
(such as those defined by the United Nations Global Compact Principles and the Organization for Economic 
Co-operation and Development Guidelines for Multinational Enterprises). For a more detailed description 
of these sustainability considerations, see &#x201c;Applying the Portfolios&#x2019; Sustainability Considerations&#x201d;. 
The Advisor engages third party service providers to provide research information relating to the Portfolio&#x2019;s 
sustainability considerations with respect to securities in the Portfolio, where information is available 
from such providers. The Advisor also may use, or supplement third party service providers&#x2019; data with, 
proprietary research relating to certain sustainability considerations where information is not available 
or has not been obtained from third party service providers engaged by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor periodically reviews the Portfolio&#x2019;s sustainability considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
may periodically modify, add, or remove sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_PrincipalRisks2_S000060925Summary104Member"
      id="ixv-118505">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_RiskLoseMoneyMember_S000060925Summary104Member"
      id="ixv-277744">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_RiskNotInsuredMember_S000060925Summary104Member"
      id="ixv-277745">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_EquityMarketRisk2_S000060925Summary104Member"
      id="ixv-118511">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_SustainabilityConsiderationInvestmentRisk2_S000060925Summary104Member"
      id="ixv-118516">&lt;p style="font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability Consideration Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
that takes into account sustainability considerations may limit the number of investment opportunities 
available to the fund, and as a result, at times, may underperform funds that are not subject to such 
sustainability considerations. For example, a fund may decline to purchase, or underweight its investment 
in, certain securities due to sustainability considerations when other investment considerations would 
suggest that a more significant investment in such securities would be advantageous. A fund may also 
overweight its investment in certain securities due to sustainability considerations when other investment 
considerations would suggest that a lesser investment in such securities would be advantageous. In addition, 
a fund may sell or retain certain securities due to sustainability considerations when it is otherwise 
disadvantageous to do so. The sustainability considerations may also cause a fund&#x2019;s industry allocations 
to deviate from those of funds without these considerations and of conventional benchmarks. The Advisor 
may also not be able to assess the sustainability of each company with securities eligible for purchase. 
For example, the Advisor may not be able to determine all of the sustainability considerations for each 
company because the third party service providers may not have data on the entire universe of companies 
with securities considered by the Advisor, or may not have information with respect to each factor considered 
as a sustainability consideration. Furthermore, &#x201c;sustainability&#x201d; is not uniformly defined, and there 
are significant differences in interpretations of what it means for a company to meet sustainability 
criteria. A fund&#x2019;s exposure to companies, industries and sectors of the market may be affected by sustainability 
data obtained that may be inaccurate and the Advisor&#x2019;s assessment of a company&#x2019;s sustainability may 
differ from assessments made by other funds, managers, or investors. As a result, there is no guarantee 
that a fund&#x2019;s investments will reflect the sustainability considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_ForeignSecuritiesandCurrenciesRisk2_S000060925Summary104Member"
      id="ixv-118524">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices may decline or fluctuate because of: (a) economic or 
political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors 
holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency 
will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced 
to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio 
does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject 
to uniform accounting, auditing and financial reporting standards and there may be less reliable and 
publicly available financial and other information about such issuers, as compared to U.S. issuers. A 
fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or 
interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, 
and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic 
issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks 
as the foreign securities that they evidence or into which they may be converted. In addition, the underlying 
issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, 
are under no obligation to distribute shareholder communications to the holders of such receipts, or 
to pass through to them any voting rights with respect to the deposited securities. Depositary receipts 
that are not sponsored by the issuer may be less liquid and there may be less readily available public 
information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_GeographicFocusRisk2_S000060925Summary104Member"
      id="ixv-118531">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments in securities of issuers located in a particular 
country or region, the fund may be subjected, to a greater extent than if its investments were less focused, 
to the risks of volatile economic cycles and/or conditions and developments that may be particular to 
that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, 
political, regulatory, economic, business, environmental or other developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_SmallandMid-CapCompanyRisk2_S000060925Summary104Member"
      id="ixv-118536">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_EmergingMarketsRisk2_S000060925Summary104Member"
      id="ixv-118541">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_ChinaInvestmentsRisk2_S000060925Summary104Member"
      id="ixv-118548">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks 
associated with investments in China, Hong Kong, and Taiwan. China, Hong Kong, and Taiwan are highly 
interconnected and interdependent, with relationships built on trade, finance, culture, and politics. 
Despite prior economic and trade reforms and the prior expansion of private ownership of companies in 
certain sectors, the Chinese government still exercises substantial influence over many aspects of the 
private sector and may own or control many companies, including by embedding Chinese Communist Party 
or People&#x2019;s Armed Forces Department personnel in Chinese companies. In addition, the Chinese government 
continues to maintain a major role in economic policy making and may alter or discontinue economic or 
trade reforms at any time. Investing in China involves risks of losses due to expropriation, nationalization, 
confiscation of assets and property, and the imposition of restrictions on foreign investments and on 
repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments in China, Hong 
Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating relations with 
the U.S. as economic and strategic competition between the U.S. and China intensifies, which could result 
in further tariffs, trade restrictions, sanctions, or other actions that adversely impact the value of 
such investments. A reduction in spending on Chinese products and services, supply chain diversification 
or the institution of additional tariffs or other trade barriers, including as a result of heightened 
trade tensions between &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;China and the United States may also have an adverse impact on the Chinese economy. 
In addition, investments in Taiwan could be adversely affected by its political and economic relationship 
with China. Certain securities issued by companies located or operating in China, such as China A-shares, 
are also subject to trading restrictions, quota limitations and less market liquidity, which could pose 
risks to a fund investing in such securities. In addition, investments in special structures that utilize 
contractual arrangements to provide exposure to certain Chinese companies, known as variable interest 
entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or prohibits foreign investments 
may present additional risks. The Chinese government&#x2019;s acceptance of the VIE structure is evolving. 
It is uncertain whether Chinese officials and regulators will withdraw their acceptance of the structure 
generally, or with respect to certain industries, or whether Chinese courts or arbitration bodies would 
decline to enforce the contractual rights of foreign investors, each of which would likely have significant, 
detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_ProfitabilityInvestmentRisk2_S000060925Summary104Member"
      id="ixv-118559">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_ValueInvestmentRisk2_S000060925Summary104Member"
      id="ixv-118563">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_DerivativesRisk2_S000060925Summary104Member"
      id="ixv-118568">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, whose value is derived from that of other assets, rates 
or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than 
other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks 
of those derivatives. Derivative instruments are subject to a number of risks including counterparty, 
settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with 
respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying 
asset, rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_SecuritiesLendingRisk2_S000060925Summary104Member"
      id="ixv-118572">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_OperationalRisk2_S000060925Summary104Member"
      id="ixv-118576">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_CyberSecurityRisk2_S000060925Summary104Member"
      id="ixv-118581">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277746"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118591">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes. Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ 
from those shown in the table. In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277747">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277748"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277749">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277750">The after-tax returns presented in the table for the Portfolio are calculated 
using the historical highest individual federal marginal income tax rates and do not reflect the impact 
of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277751">In addition, the after-tax returns shown are not relevant to investors 
who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual 
retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277752">Emerging 
Markets Sustainability Core 1 Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277753">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277754">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277755"
      unitRef="pure">0.2030</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277756">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277757"
      unitRef="pure">-0.2669</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277758">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277759">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277760">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277761"
      unitRef="pure">0.2787</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277762"
      unitRef="pure">0.0517</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180327_20251231_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="_8805_"
      unitRef="pure">0.0466</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277764">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277765"
      unitRef="pure">0.2707</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277766"
      unitRef="pure">0.0441</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180327_20251231_AfterTaxesOnDistributionsMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="_8809_"
      unitRef="pure">0.0400</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      id="ixv-277768">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277769"
      unitRef="pure">0.1706</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277770"
      unitRef="pure">0.0386</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180327_20251231_AfterTaxesOnDistributionsAndSalesMember_C000197760Member_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="_8813_"
      unitRef="pure">0.0350</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIEmergingMarketsIndexnetdividends3354_S000060925Member_S000060925Summary104Member"
      id="ixv-277772">MSCI Emerging Markets Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-277773">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIEmergingMarketsIndexnetdividends3355_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277774"
      unitRef="pure">0.3357</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIEmergingMarketsIndexnetdividends3355_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="ixv-277775"
      unitRef="pure">0.0420</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20180327_20251231_MSCIEmergingMarketsIndexnetdividends3355_S000060925Member_S000060925Summary104Member"
      decimals="INF"
      id="_8818_"
      unitRef="pure">0.0474</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20251031_20251031_S000060925Member_S000060925Summary104Member"
      id="ixv-118873">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
implementation and management of the Advisor&#x2019;s &#x201c;Sustainability&#x201d; portfolios, including without limitation, 
the Emerging Markets Sustainability Core Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 
B1 and 8,438,092 B2.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277777"> Dimensional World ex U.S. 
Sustainability Targeted Value Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277778"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-118931">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional World ex U.S. Sustainability Targeted Value Portfolio (the &#x201c;World 
ex U.S. Sustainability Targeted Value Portfolio&#x201d; or &#x201c;Portfolio&#x201d;) is to achieve long-term capital 
appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277779"> Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-118938">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277780">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277781">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277782"
      unitRef="pure">0.0040</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="_8827_"
      unitRef="pure">0.0017</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277784"
      unitRef="pure">0.0057</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="_8829_"
      unitRef="pure">-0.0005</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277786"
      unitRef="pure">0.0052</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277787">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-119031">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277788"
      unitRef="usd">53</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277789"
      unitRef="usd">53</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277790"
      unitRef="usd">178</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000252067Member_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277791"
      unitRef="usd">178</oef:ExpenseExampleNoRedemptionYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277792">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-119048">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
period May 6, 2025 to October 31, 2025, the  portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;7%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;

</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      decimals="INF"
      id="ixv-277793"
      unitRef="pure">0.07</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277794"> Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-119062">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To 
achieve the World ex U.S. Sustainability Targeted Value Portfolio&#x2019;s investment objective, Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements an integrated investment approach that combines research, 
portfolio design, portfolio management, and trading functions. As further described below, the Portfolio&#x2019;s 
design emphasizes long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The World ex U.S. Sustainability 
Targeted Value Portfolio is designed to provide exposure to a broad and diverse portfolio of securities 
of non-U.S. companies, with a focus on small and mid-cap lower relative price companies with higher profitability, 
while adjusting the composition of the Portfolio based on sustainability considerations.  The Portfolio 
may purchase securities of companies associated with countries with developed and emerging markets, which 
may include frontier markets (emerging market countries in an earlier stage of development), authorized 
for investment by the Advisor&#x2019;s Investment Committee (&#x201c;Approved Markets&#x201d;). The Portfolio intends 
to invest its assets to gain exposure to at least three different countries, excluding the United States. 
The Portfolio may emphasize certain stocks, including smaller capitalization companies, lower relative 
price stocks, and/or higher profitability stocks as compared to their representation in the small- and 
mid-cap value segments of the Approved Markets in which the Portfolio is authorized to invest. An equity 
issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low 
price in relation to its book value. In assessing relative price, the Advisor may consider additional 
factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have 
high profitability because it has high earnings or profits from operations in relation to its book value 
or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to 
change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase or reduce the World ex U.S. 
Sustainability Targeted Value Portfolio&#x2019;s exposure to an eligible company, or exclude a company, based 
on shorter-term considerations, such as a company&#x2019;s price momentum, short-run reversals, and investment 
characteristics. In assessing a company&#x2019;s investment characteristics, the Advisor considers ratios 
such as recent changes in assets divided by total assets. The criteria the Advisor uses for assessing 
a company&#x2019;s investment characteristics are subject to change from time to time. In addition, the Advisor 
seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate 
in the available market liquidity, while managing turnover and explicit transaction costs. The Portfolio 
may gain exposure to companies associated with approved markets by purchasing equity securities in the 
form of depositary receipts, which may be listed or traded outside the issuer&#x2019;s domicile country.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World ex U.S. Sustainability Targeted Value Portfolio may purchase or sell futures contracts and options 
on futures contracts for approved market or other equity market securities and indices, including those 
of the United States, to increase or decrease equity market exposure based on actual or expected cash 
inflows to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated 
in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer 
cash balances from one currency to another currency. The above referenced investments are not subject 
to, although they may incorporate, the Portfolio&#x2019;s sustainability considerations.  &lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
World ex U.S. Sustainability Targeted Value Portfolio may lend its portfolio securities to generate additional 
income.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor intends to take into account certain sustainability considerations 
when making investment decisions for the World ex U.S. Sustainability Targeted Value Portfolio. Relative 
to a fund without these considerations that otherwise has the same investment objective, strategies, 
and policies as the Portfolio, the Portfolio will generally have excluded, and have less overall weight 
in, securities of companies that, according to the Portfolio&#x2019;s sustainability considerations, may be 
less sustainable as compared to other companies in the Portfolio&#x2019;s investment universe. Similarly, 
relative to such a fund, the Portfolio will generally have more overall weight in securities of companies 
that, according to the Portfolio&#x2019;s sustainability considerations, may be more sustainable as compared 
to other companies in the Portfolio&#x2019;s investment universe. In particular, the Advisor ranks companies 
relative to the applicable universe of securities based on carbon intensity and scaled potential emissions 
from reserves and the securities of the worst-ranking companies are generally excluded. In addition, 
the Advisor seeks to exclude securities of companies based on sustainability considerations relating 
to coal, factory farming, palm oil, cluster &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;munitions and landmines, tobacco, child labor, civilian firearms, private prisons, 
and material involvement in severe environmental, social, or governance controversies that indicate operations 
inconsistent with responsible business conduct standards (such as those defined by the United Nations 
Global Compact Principles and the Organization for Economic Co-operation and Development Guidelines for 
Multinational Enterprises).  For a more detailed description of these sustainability considerations, 
see &#x201c;Applying the Portfolio&#x2019;s Sustainability Considerations&#x201d;. The Advisor engages third party service 
providers to provide research information relating to the Portfolio&#x2019;s sustainability considerations 
with respect to securities in the Portfolio, where information is available from such providers. The 
Advisor also may use, or supplement third party service providers&#x2019; data with, proprietary research 
relating to certain sustainability considerations where information is not available or has not been 
obtained from third party service providers engaged by the Advisor.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The 
Advisor periodically reviews the Portfolio&#x2019;s sustainability considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
may periodically modify, add, or remove sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_PrincipalRisks2_S000086505Summary105Member"
      id="ixv-119077">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_RiskLoseMoneyMember_S000086505Summary105Member"
      id="ixv-277795">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_RiskNotInsuredMember_S000086505Summary105Member"
      id="ixv-277796">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_EquityMarketRisk2_S000086505Summary105Member"
      id="ixv-119083">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_SustainabilityConsiderationInvestmentRisk2_S000086505Summary105Member"
      id="ixv-119088">&lt;p style="-sec-ix-redline:true;font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability 
Consideration Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund that takes into account 
sustainability considerations may limit the number of investment opportunities available to the fund, 
and as a result, at times, may underperform funds that are not subject to such sustainability considerations. 
For example, a fund may decline to purchase, or underweight its investment in, certain securities due 
to sustainability considerations when other investment considerations would suggest that a more significant 
investment in such securities would be advantageous. A fund may also overweight its investment in certain 
securities due to sustainability considerations when other investment considerations would suggest that 
a lesser investment in such securities would be advantageous. In addition, a fund may sell or retain 
certain securities due to sustainability considerations when it is otherwise disadvantageous to do so. 
The sustainability considerations may also cause a fund&#x2019;s industry allocations to deviate from those 
of funds without these considerations and of conventional benchmarks. The Advisor may also not be able 
to assess the sustainability of each company with securities eligible for purchase. For example, the 
Advisor may not be able to determine all of the sustainability considerations for each company because 
the third party service providers may not have data on the entire universe of companies with securities 
considered by the Advisor, or may not have information with respect to each factor considered as a sustainability 
consideration. Furthermore, &#x201c;sustainability&#x201d; is not uniformly defined, and there are significant 
differences in interpretations of what it means for a company to meet sustainability criteria. A fund&#x2019;s 
exposure to companies, industries and sectors of the market may be affected by sustainability data obtained 
that may be inaccurate and the Advisor&#x2019;s assessment of a company&#x2019;s sustainability may differ from 
assessments made by other funds, managers, or investors. As a result, there is no guarantee that a fund&#x2019;s 
investments will reflect the sustainability considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_ForeignSecuritiesandCurrenciesRisk2_S000086505Summary105Member"
      id="ixv-119093">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject to the same risks as the foreign securities 
that they evidence or into which they may be converted. In addition, the underlying issuers of certain 
depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation 
to distribute shareholder communications to the holders of such receipts, or to pass through to them 
any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored 
by the issuer may be less liquid and there may be less readily available public information about the 
issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_SmallandMid-CapCompanyRisk2_S000086505Summary105Member"
      id="ixv-119104">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities 
of small and mid-cap companies are often less liquid than those of large companies and this could make 
it difficult to sell a small or mid-cap company security at a desired time or price. As a result, small 
and mid-cap company stocks may fluctuate relatively more in price. In general, small and mid-capitalization 
companies are also more vulnerable than larger companies to adverse business or economic developments 
and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_ValueInvestmentRisk2_S000086505Summary105Member"
      id="ixv-119109">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies. Value stocks can react differently 
to political, economic, and industry developments than the market as a whole and other types of stocks. 
Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_ProfitabilityInvestmentRisk2_S000086505Summary105Member"
      id="ixv-119114">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_EmergingMarketsRisk2_S000086505Summary105Member"
      id="ixv-119118">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_ChinaInvestmentsRisk2_S000086505Summary105Member"
      id="ixv-119125">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;China Investments Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;There are special risks associated with investments in China, Hong Kong, and Taiwan. 
China, Hong Kong, and Taiwan are highly interconnected and interdependent, with relationships built on 
trade, finance, culture, and politics. Despite prior economic and trade reforms and the prior expansion 
of private ownership of companies in certain sectors, the Chinese government still exercises substantial 
influence over many aspects of the private sector and may own or control many companies, including by 
embedding Chinese Communist Party or People&#x2019;s Armed Forces Department personnel in Chinese companies. 
In addition, the Chinese government continues to maintain a major role in economic policy making and 
may alter or discontinue economic or trade reforms at any time. Investing in China involves risks of 
losses due to expropriation, nationalization, confiscation of assets and property, and the imposition 
of restrictions on foreign investments and on repatriation of capital invested.&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Investments 
in China, Hong Kong, and Taiwan are also subject to the risk of escalating tensions and deteriorating 
relations with the U.S. as economic and strategic competition between the U.S. and China intensifies, 
which could result in further tariffs, trade restrictions, sanctions, or other actions that adversely 
impact the value of such investments. A reduction in spending on Chinese products and services, supply 
chain diversification or the institution of additional tariffs or other trade barriers, including as 
a result of heightened trade tensions between China and the United States may also have an adverse impact 
on the Chinese economy. In addition, investments in Taiwan could be adversely affected by its political 
and economic relationship with China. Certain securities issued by companies located or operating in 
China, such as China A-shares, are also subject to trading restrictions, quota limitations and less market 
liquidity, which could pose risks to a fund investing in such securities. In addition, investments in 
special structures that utilize contractual arrangements to provide exposure to certain Chinese companies, 
known as variable interest entities (&#x201c;VIEs&#x201d;), that operate in sectors in which China restricts and/or 
prohibits foreign investments may present additional risks. The Chinese government&#x2019;s acceptance of 
the VIE structure is evolving. It is uncertain whether Chinese officials and regulators will withdraw 
their acceptance of the structure generally, or with respect to certain industries, or whether Chinese 
courts or arbitration bodies would &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;decline to enforce the contractual rights of foreign investors, each of which 
would likely have significant, detrimental, and possibly permanent losses on the value of such investments.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_DerivativesRisk2_S000086505Summary105Member"
      id="ixv-119136">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes 
may be considered to carry more risk than other types of investments. When a fund uses derivatives, the 
fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to 
a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_SecuritiesLendingRisk2_S000086505Summary105Member"
      id="ixv-119140">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_OperationalRisk2_S000086505Summary105Member"
      id="ixv-119144">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_CyberSecurityRisk2_S000086505Summary105Member"
      id="ixv-119149">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_LargeShareholderRisk2_S000086505Summary105Member"
      id="ixv-119154">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Large Shareholder Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain shareholders, including other funds or accounts advised by the Advisor, 
may from time to time own a substantial amount of a fund&#x2019;s shares. In addition, a third-party investor, 
the Advisor, an authorized participant, a lead market maker, or another entity may invest in a fund and 
hold its investment for a limited period of time solely to facilitate commencement of a fund or to facilitate 
a fund achieving a specified size or scale. There can be no assurance that any large shareholder would 
not redeem its investment, that the size of a fund would be maintained at such levels or that a fund 
would continue to meet applicable listing requirements. Redemptions by large shareholders could have 
a significant negative impact on a fund. In addition, transactions by large shareholders may account 
for a large percentage of the trading volume on the listing exchange and may, therefore, have a material 
upward or downward effect on the market price of the shares.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277797"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-119164">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Performance 
information is not available for the Portfolio because it has not yet completed a full calendar year 
of operations. Updated performance information for the Portfolio can be obtained in the future by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277798">Performance 
information is not available for the Portfolio because it has not yet completed a full calendar year 
of operations.</oef:PerformanceOneYearOrLess>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000086505Member_S000086505Summary105Member"
      id="ixv-277799">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277800"> DFA Global Sustainability 
Fixed Income Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277801"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119217">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Global Sustainability Fixed Income Portfolio (the &#x201c;Global Sustainability 
Fixed Income Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to seek to maximize total returns from the universe 
of debt securities in which the Portfolio invests. Total return is comprised of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277802"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119224">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277803">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277804">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277805"
      unitRef="pure">0.0018</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277806"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277807"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277808">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119283">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277809"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277810"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277811"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277812"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277813"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277814"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277815"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277816"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277817"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277818"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277819">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119310">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;38%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277820"
      unitRef="pure">0.38</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277821"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119320">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Sustainability Fixed Income 
Portfolio invests in a broad portfolio of investment grade debt securities (e.g., rated AAA to BBB- by 
S&amp;amp;P Global Ratings (&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s 
Ratings (&#x201c;Moody&#x2019;s&#x201d;)) of U.S. and non-U.S. corporate and government issuers, while excluding or 
underweighting securities of corporate and certain government issuers based upon the Portfolio&#x2019;s sustainability 
considerations. At times, the Portfolio may invest a majority of its net assets in securities of U.S. 
and non-U.S. government issuers. Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;) expects that the Portfolio 
will primarily invest in the obligations of issuers that are in developed countries. The Advisor selects 
the Portfolio's foreign country and currency compositions based on an evaluation of various factors, 
including, but not limited to, relative interest rates and exchange rates.&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Sustainability Fixed Income Portfolio will be managed with a view to 
capturing expected credit premiums and expected term premiums. The term &#x201c;expected credit premium&#x201d; 
means the expected incremental return on investment for holding obligations considered to have greater 
credit risk than direct obligations of the U.S. Treasury, and &#x201c;expected term premium&#x201d; means the expected 
incremental return on investment for holding securities having longer-term maturities as compared to 
shorter-term maturities. In managing the Portfolio, the Advisor will increase or decrease investment 
exposure to intermediate-term securities depending on the expected term premium and also increase or 
decrease investment exposure to non-government securities depending on the expected credit premium. Under 
normal circumstances, the Portfolio will generally maintain a weighted average duration of no more than 
one half year greater than, and no less than one year below, the weighted average duration of the Bloomberg 
Global Aggregate Bond Index (Hedged to USD), which was approximately 6.34 years as of December 31, 2025. 
From time to time, the Portfolio may deviate from this duration range when the Advisor determines it 
to be appropriate under the circumstances. Duration is a measure of the sensitivity of a security&#x2019;s 
price to changes in interest rates. The longer a security&#x2019;s duration, the more sensitive it will be 
to changes in interest rates.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Global Sustainability Fixed Income Portfolio intends to 
invest its assets to gain exposure to at least three different countries, including the United States. 
As of the date of the Prospectus, the Portfolio invests approximately 28% of its net assets in U.S. issuers. 
This percentage will change due to market conditions. An issuer may be considered to be of a country 
if it is organized under the laws of, maintains its principal place of business in, has at least 50% 
of its assets or derives at least 50% of its operating income in, or is a government, government agency, 
instrumentality or central bank of, that country. As a non-fundamental policy, under normal circumstances, 
at least 80% of the Portfolio&#x2019;s net assets will be invested in fixed income securities considered to 
be investment grade quality. The Portfolio may invest in obligations issued or guaranteed by the U.S. 
and foreign governments, their agencies and instrumentalities, bank obligations, commercial paper, repurchase 
agreements, money market funds, obligations of other domestic and foreign issuers, securities of domestic 
or foreign issuers denominated in U.S. dollars but not trading in the United States, and obligations 
of supranational organizations. In addition, the Portfolio is authorized to invest more than 25% of its 
total assets in U.S. Treasury bonds, bills and notes, and obligations of federal agencies and its instrumentalities.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Sustainability Fixed Income Portfolio&#x2019;s investments may include securities denominated in foreign 
currencies. The Portfolio intends to hedge foreign currency exposure to attempt to protect against uncertainty 
in the level of future foreign currency rates. The Portfolio may enter into foreign currency forward 
contracts to hedge against fluctuations in currency exchange rates or to transfer balances from one currency 
to another. The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell 
credit protection to hedge its credit exposure; gain market or issuer exposure without owning the underlying 
securities; or increase the Portfolio&#x2019;s total return. The Portfolio also may use derivatives, such 
as futures contracts and options on futures contracts, for hedging purposes such as hedging its interest 
rate or currency exposure or for non-hedging purposes as a substitute for direct investment or to increase 
or decrease market exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Global Sustainability Fixed Income Portfolio may lend its portfolio securities to generate additional 
income.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor intends to take into account certain sustainability considerations 
when making investment decisions for the Global Sustainability Fixed Income Portfolio. Relative to a 
fund without these considerations that otherwise has the same investment objective, strategies, and policies 
as the Portfolio, the Portfolio will generally have excluded, and have less overall weight in, securities 
of companies that, according to the Portfolio&#x2019;s sustainability considerations, may be less sustainable 
as compared to other companies in the Portfolio&#x2019;s investment universe. Similarly, relative to such 
a fund, the Portfolio will generally have more overall weight in securities of companies that, according 
to the Portfolio&#x2019;s sustainability considerations, may be more sustainable as compared to other companies 
in the Portfolio&#x2019;s investment universe. In particular, the Advisor assesses corporate issuers by considering 
several factors, including carbon intensity and controversies related to land use and biodiversity, toxic 
spills and releases, operational waste, and water management, with most weight placed on carbon intensity. 
These issuers are then ranked based on one or more of these factors relative to the applicable universe 
of securities or their sector peers. Securities of the worst ranked of these companies within the applicable 
universe of securities are then generally excluded. Additionally, securities of the worst ranked of these 
companies within their sector are generally underweighted and the best ranked overweighted or neutral-weighted. 
The Advisor also assesses corporate issuers based on potential emissions from reserves and scaled potential 
emissions from reserves. These issuers are then ranked relative to the applicable universe of securities. 
Securities of the worst ranked of these companies within the applicable universe of securities are then 
generally excluded. In addition, the Advisor seeks to exclude securities of &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;companies based on sustainability considerations relating to coal, factory farming, 
palm oil, cluster munitions and landmines, tobacco, child labor, civilian firearms, private prisons, 
and material involvement in severe environmental, social, or governance controversies that indicate operations 
inconsistent with responsible business conduct standards (such as those defined by the United Nations 
Global Compact Principles and the Organization for Economic Co-operation and Development Guidelines for 
Multinational Enterprises). For a more detailed description of these sustainability considerations, see 
&#x201c;Applying the Portfolios&#x2019; Sustainability Considerations&#x201d;. The Advisor engages third party service 
providers to provide research information relating to the Portfolio&#x2019;s sustainability considerations 
with respect to securities in the Portfolio, where information is available from such providers. The 
Advisor also may use, or supplement third party service providers&#x2019; data with, proprietary research 
relating to certain sustainability considerations where information is not available or has not been 
obtained from third party service providers engaged by the Advisor.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; color:#000000; font-weight:normal; text-decoration:none;"&gt;In 
addition to excluding, underweighting, overweighting and neutral weighting securities of companies based 
upon the Portfolio&#x2019;s sustainability considerations, the Portfolio also will assess treasury, sovereign 
and local authority issuers on the respective sovereign entity&#x2019;s greenhouse gas emissions per GDP and 
underweight the highest emitters in aggregate. Additionally, the Portfolio will assess government agency 
and supranational issuers on their carbon intensity and potential emissions from reserves and seek to 
exclude securities of such issuers with relatively high carbon intensity or potential emissions from 
reserves.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The Advisor periodically reviews the Portfolio&#x2019;s sustainability 
considerations and the Portfolio&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; may periodically modify, add, or remove 
sustainability considerations.&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_PrincipalRisks2_S000063222Summary106Member"
      id="ixv-119340">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x12"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_RiskLoseMoneyMember_S000063222Summary106Member"
      id="ixv-277822">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_RiskNotInsuredMember_S000063222Summary106Member"
      id="ixv-277823">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_MarketRisk2_S000063222Summary106Member"
      id="ixv-119346">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_SustainabilityConsiderationInvestmentRisk2_S000063222Summary106Member"
      id="ixv-119351">&lt;p style="font-size:11.0pt; font-family:Calibri; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Sustainability Consideration Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
that takes into account sustainability considerations may limit the number of investment opportunities 
available to the fund, and as a result, at times, may underperform funds that are not subject to such 
sustainability considerations. For example, a fund may decline to purchase, or underweight its investment 
in, certain securities due to sustainability considerations when other investment considerations would 
suggest that a more significant investment in such securities would be advantageous. A fund may also 
overweight its investment in certain securities due to sustainability considerations when other investment 
considerations would suggest that a lesser investment in such securities would be advantageous. In addition, 
a fund may sell or retain certain securities due to sustainability considerations when it is otherwise 
disadvantageous to do so. The sustainability considerations may also cause a fund&#x2019;s industry allocations 
to deviate from those of funds without these considerations and of conventional benchmarks. The Advisor 
may also not be able to assess the sustainability of each company with securities eligible for purchase. 
For example, the Advisor may not be able to determine all of the sustainability considerations for each 
company because the third party service providers may not have data on the entire universe of companies 
with securities considered by the Advisor, or may not have information with respect to each factor considered 
as a sustainability consideration. Furthermore, &#x201c;sustainability&#x201d; is not uniformly defined, and there 
are significant differences in interpretations of what it means for a company to meet sustainability 
criteria. A fund&#x2019;s exposure to companies, industries and sectors of the market may be affected by sustainability 
data obtained that may be inaccurate and the Advisor&#x2019;s assessment of a company&#x2019;s sustainability may 
differ from assessments made by other funds, managers, or investors. As a result, there is no guarantee 
that a fund&#x2019;s investments will reflect the sustainability considerations of any particular investor.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_IncomeRisk2_S000063222Summary106Member"
      id="ixv-119356">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, the 
proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_CallRisk2_S000063222Summary106Member"
      id="ixv-119364">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_InterestRateRisk2_S000063222Summary106Member"
      id="ixv-119369">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk 
because the prices of fixed income securities tend to move in the opposite direction of interest rates. 
When interest rates rise, fixed income security prices fall. During periods of very low or negative interest 
rates, a fund may be subject to a greater risk of rising interest rates. When interest rates fall, fixed 
income security prices rise. In general, fixed income securities with longer maturities are more sensitive 
to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_CreditRisk2_S000063222Summary106Member"
      id="ixv-119374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk that the issuer of a security may be unable to make interest 
payments and/or repay principal when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change 
in an issuer&#x2019;s financial strength may affect a security&#x2019;s value, and thus, impact the performance 
of a fund holding such securities. Government agency obligations have different levels of credit support 
and, therefore, different degrees of credit risk. Securities issued by agencies and instrumentalities 
of the U.S. Government that are supported by the full faith and credit of the United States, such as 
the Federal Housing Administration and Ginnie Mae, present little credit risk. Other securities issued 
by agencies and instrumentalities sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s 
right to borrow from the U.S. Treasury, subject to certain limitations, and securities issued by agencies 
and instrumentalities sponsored by the U.S. Government that are sponsored by the credit of the issuing 
agencies, such as Freddie Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government 
agency securities issued or guaranteed by the credit of the agency may still involve a risk of non-payment 
of principal and/or interest.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_ForeignSecuritiesandCurrenciesRisk2_S000063222Summary106Member"
      id="ixv-119379">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_ForeignGovernmentDebtRisk2_S000063222Summary106Member"
      id="ixv-119385">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_DerivativesRisk2_S000063222Summary106Member"
      id="ixv-119390">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Derivatives are instruments, such as swaps, futures contracts, and options thereon, and foreign currency 
forward contracts, whose value is derived from that of other assets, rates or indices. Derivatives can 
be used for hedging (attempting to reduce risk by offsetting one investment position with another) or 
non-hedging purposes. Hedging with derivatives may increase expenses, and there is no guarantee that 
a hedging strategy will work. While hedging can reduce or eliminate losses, it can also reduce or eliminate 
gains or cause losses if the market moves in a manner different from that anticipated by a fund or if 
the cost of the derivative outweighs the benefit of the hedge. In regard to currency hedging, it is generally 
not possible to precisely match the foreign currency exposure of such foreign currency forward contracts 
to the value of the securities involved due to fluctuations in the market values of such securities and 
cash flows into and out of a fund between the date a foreign currency forward contract is entered into 
and the date it expires. The use of derivatives for non-hedging purposes may be considered to carry more 
risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed 
to the risks of those derivatives. Derivative instruments are subject to a number of risks including 
counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties 
with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the 
underlying asset, rate &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;or index, and a fund could lose more than the principal amount invested. Additional 
risks are associated with the use of swaps including counterparty and credit risk (the risk that the 
other party to a swap agreement will not fulfill its contractual obligations, whether because of bankruptcy 
or other default) and liquidity risk (the possible lack of a secondary market for the swap agreement). 
Credit risk increases when a fund is the seller of swaps and counterparty risk increases when the fund 
is a buyer of swaps. In addition, where a fund is the seller of swaps, it may be required to liquidate 
portfolio securities at inopportune times in order to meet payment obligations. Swaps may be illiquid 
or difficult to value. &lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_LiquidityRisk2_S000063222Summary106Member"
      id="ixv-119399">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_SecuritiesLendingRisk2_S000063222Summary106Member"
      id="ixv-119404">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_OperationalRisk2_S000063222Summary106Member"
      id="ixv-119408">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various 
operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances 
at third parties. A fund and its advisor seek to reduce these operational risks through controls and 
procedures. However, measures that seek to reduce these operational risks through controls and procedures 
may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_CyberSecurityRisk2_S000063222Summary106Member"
      id="ixv-119413">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277824"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277825">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277826"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication of future 
results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277827">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277828">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277829">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277830">DFA Global 
Sustainability Fixed Income Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277831">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277832">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277833"
      unitRef="pure">0.0743</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277834">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277835"
      unitRef="pure">-0.0705</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277836">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277837">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277838">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277839"
      unitRef="pure">0.0495</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277840"
      unitRef="pure">-0.0060</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181106_20251231_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="_8941_"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277842">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277843"
      unitRef="pure">0.0322</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277844"
      unitRef="pure">-0.0186</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181106_20251231_AfterTaxesOnDistributionsMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="_8945_"
      unitRef="pure">0.0094</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      id="ixv-277846">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277847"
      unitRef="pure">0.0292</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277848"
      unitRef="pure">-0.0099</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181106_20251231_AfterTaxesOnDistributionsAndSalesMember_C000205087Member_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="_8949_"
      unitRef="pure">0.0114</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3356_S000063222Member_S000063222Summary106Member"
      id="ixv-277850">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-277851">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3357_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277852"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3357_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="ixv-277853"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20181106_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3357_S000063222Member_S000063222Summary106Member"
      decimals="INF"
      id="_8954_"
      unitRef="pure">0.0242</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="Context_20251031_20251031_S000063222Member_S000063222Summary106Member"
      id="ixv-119704">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
implementation and management of the Advisor&#x2019;s &#x201c;Sustainability&#x201d; portfolios, including without limitation, 
the Global Sustainability Fixed Income Portfolio is protected by U.S. Patent Nos. 7,596,525 B1, 7,599,874 
B1 and 8,438,092 B2.&lt;/p&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277855"> Dimensional VA Global Moderate 
Allocation Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277856"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123353">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional VA Global Moderate Allocation Portfolio (&#x201c;VA Global Moderate 
Allocation Portfolio&#x201d; or, the &#x201c;Portfolio&#x201d;) is to seek total return consisting of capital appreciation 
and current income.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277857"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123360">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; The expenses in the table 
do not include any fees or charges imposed by the variable insurance contract. If such fees and charges 
were included, the expenses would be higher.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277858">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277859">Annual 
Fund Operating Expenses (expenses that you pay each                  year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277860"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:Component1OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_8963_"
      unitRef="pure">0.0010</oef:Component1OtherExpensesOverAssets>
    <oef:Component2OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_8964_"
      unitRef="pure">0.0001</oef:Component2OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277863"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277864"
      unitRef="pure">0.0019</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277865"
      unitRef="pure">0.0053</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_8968_"
      unitRef="pure">-0.0018</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277867"
      unitRef="pure">0.0035</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277868">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123487">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds.  The Example does not include any fees or charges imposed by the variable insurance contract 
and if such fees were included, expenses would be higher. The Example assumes that you invest $10,000 
in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 
5% return each year and that the Portfolio&#x2019;s operating expenses remain the same. The costs for the 
Portfolio reflect the net expenses of the Portfolio that result from the contractual expense waiver in 
the first year only. Although your actual costs may be higher or lower, based on these assumptions your 
costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277869"
      unitRef="usd">36</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277870"
      unitRef="usd">36</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277871"
      unitRef="usd">152</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000072675Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277872"
      unitRef="usd">152</oef:ExpenseExampleNoRedemptionYear03>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277873">PORTFOLIO 
TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123507">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund generally pays transaction costs, 
such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). A higher 
portfolio turnover may indicate higher transaction costs. The Portfolio does not pay transaction costs 
when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities for 
their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, 
affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;10%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="ixv-277874"
      unitRef="pure">0.10</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277875"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123517">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Global Moderate Allocation Portfolio 
is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets among other funds 
managed by Dimensional Fund Advisors LP (the &#x201d;Advisor&#x201d;), although it has the ability to invest directly 
in securities and derivatives. To achieve the Portfolio&#x2019;s and the Underlying Funds&#x2019; investment objectives, 
the Advisor implements an integrated investment approach that combines research, portfolio design, portfolio 
management, and trading functions. As further described below, the Portfolio&#x2019;s and the Underlying Funds&#x2019; 
designs emphasize long-term drivers of expected returns identified by the Advisor&#x2019;s research, while 
balancing risk through broad diversification across companies, sectors, and countries. The Advisor&#x2019;s 
portfolio management and trading processes further balance those long-term drivers of expected returns 
with shorter-term drivers of expected returns and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Global Moderate Allocation Portfolio, under normal market circumstances, purchases shares of the Underlying 
Funds to achieve a moderate allocation to both global equity and global fixed income securities. Generally, 
the Portfolio invests its assets in domestic and international equity Underlying Funds and fixed income 
Underlying Funds to achieve an allocation that provides a moderate allocation to global equity securities, 
with an allocation of approximately 55% to 75% of the Portfolio&#x2019;s assets to domestic and international 
equity Underlying Funds and 25% to 45% of its assets to fixed income Underlying Funds. Periodically, 
the Advisor will review the allocations for the Portfolio in each Underlying Fund and may adjust allocations 
to Underlying Funds or may add or remove Underlying Funds in the Portfolio without notice to shareholders.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
VA Global Moderate Allocation Portfolio, directly or indirectly through its investment in the Underlying 
Funds, intends to invest its assets to gain exposure to at least three different countries, including 
the United States. As of the date of the Prospectus, the Portfolio, directly or indirectly through its 
investment in the Underlying Funds, invests approximately 54% of its net assets in U.S. companies or 
issuers. This percentage will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;In 
addition to its allocation strategy of providing exposure to the domestic and international equity and 
fixed income markets through investment in the Underlying Funds, the VA Global Moderate Allocation Portfolio 
further diversifies its investment portfolio by allocating its assets among Underlying Funds that represent 
a variety of different asset classes. As of the date of this Prospectus, the Portfolio invests in: (1) 
domestic equity Underlying Funds that purchase a broad and diverse portfolio of securities of U.S. operating 
companies of all market capitalization sizes with a moderate to meaningful emphasis on smaller, lower 
relative price, and higher profitability companies and a domestic equity Underlying Fund that primarily 
invests in publicly traded real estate investment trusts (&#x201c;REITs&#x201d;); (2) international equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of companies in developed ex U.S. and 
emerging markets of all market capitalization sizes which may include frontier markets (emerging market 
countries in an earlier stage of development) with a&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;meaningful 
emphasis on smaller, lower relative price, and higher profitability companies and an international equity 
Underlying Fund that primarily invests in publicly traded REITs and REIT-like entities; and (3) fixed 
income Underlying Funds that may purchase U.S. and foreign debt securities such as obligations issued 
or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, corporate debt 
obligations, bank obligations, commercial paper, repurchase agreements, money market funds, securities 
of domestic and foreign issuers denominated in U.S. dollars but not trading in the United States, obligations 
of supranational organizations and inflation-protected securities.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the VA Global Moderate Allocation Portfolio&#x2019;s and/or Underlying 
Funds&#x2019; exposure to an eligible company, or exclude a company, based on shorter-term considerations, 
such as a company&#x2019;s price momentum, short-run reversals, and investment characteristics. In assessing 
a company&#x2019;s investment characteristics, the Advisor considers ratios such as recent changes in assets 
divided by total assets. The criteria the &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Advisor uses for assessing a company&#x2019;s investment characteristics are subject 
to change from time to time. In addition, the Advisor seeks to reduce trading costs using a flexible 
trading approach that looks for opportunities to participate in the available market liquidity, while 
managing turnover and explicit transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The VA Global Moderate Allocation 
Portfolio and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, 
to increase or decrease market exposure based on actual or expected cash inflows to or outflows from 
the Portfolio or Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, 
including foreign currency forward contracts, in connection with the settlement of foreign securities, 
to attempt to protect against uncertainty in the level of future foreign currency rates, to hedge against 
fluctuations in currency exchange rates or to transfer balances from one currency to another.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain 
fixed income Underlying Funds also may purchase or sell futures contracts and options on futures contracts, 
to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute for 
direct investment. Also the Portfolio and Underlying Funds may lend their portfolio securities to generate 
additional income.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Certain of the Underlying Funds are available for investment 
only by insurance company separate accounts that fund variable life and variable annuity contracts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
summary of the investment strategies and policies of the Underlying Funds in which the VA Global Moderate 
Allocation Portfolio invests as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus 
in the section entitled &#x201c;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES&#x2014;Investments 
in Underlying Funds.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#x201d;&lt;/span&gt;&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_PrincipalRisks2_S000024504Summary107Member"
      id="ixv-123538">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x13"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_RiskLoseMoneyMember_S000024504Summary107Member"
      id="ixv-277876">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_RiskNotInsuredMember_S000024504Summary107Member"
      id="ixv-277877">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_FundofFundsRisk2_S000024504Summary107Member"
      id="ixv-123544">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to a proportionate 
share of the expenses of those underlying funds in addition to the expenses of a fund of funds. Certain 
risks of the Underlying Funds&#x2019; investments that are principal risks of investing in the Portfolio are 
described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_EquityMarketRisk2_S000024504Summary107Member"
      id="ixv-123549">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_MarketRisk2_S000024504Summary107Member"
      id="ixv-123554">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of securities, 
and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ForeignSecuritiesandCurrenciesRisk2_S000024504Summary107Member"
      id="ixv-123559">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not be subject to uniform accounting, auditing and financial 
reporting standards and there may be less reliable and publicly available financial and other information 
about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising 
shareholder rights, securing dividends and/or interest and obtaining information regarding corporate 
actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments 
in foreign courts than with respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary 
receipts are generally subject to the same risks as the foreign securities that they evidence or into 
which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly 
unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications 
to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited 
securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may 
be less readily available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ForeignGovernmentDebtRisk2_S000024504Summary107Member"
      id="ixv-123570">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign 
Government Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the 
governmental entity that controls the repayment of government debt may not be willing or able to repay 
the principal and/or to pay the interest when it becomes due, due to factors such as political considerations, 
the relative size of the governmental entity&#x2019;s debt position in relation to the economy, cash flow 
problems, insufficient foreign currency reserves, the failure to put in place economic reforms required 
by the International Monetary Fund or other multilateral agencies, and/or other national economic factors; 
(b) governments may default on their debt securities, which may require holders of such securities to 
participate in debt rescheduling; and (c) there is no legal or bankruptcy process by which defaulted 
government debt may be collected in whole or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ProfitabilityInvestmentRisk2_S000024504Summary107Member"
      id="ixv-123575">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_ValueInvestmentRisk2_S000024504Summary107Member"
      id="ixv-123579">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_SmallandMid-CapCompanyRisk2_S000024504Summary107Member"
      id="ixv-123584">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and 
mid-cap companies are often less liquid than those of large companies and this could make it difficult 
to sell a small or mid-cap company security at a desired time or price. As a result, small and mid-cap 
company stocks may fluctuate relatively more in price. In general, small and mid-capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_EmergingMarketsRisk2_S000024504Summary107Member"
      id="ixv-123589">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_InterestRateRisk2_S000024504Summary107Member"
      id="ixv-123596">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CreditRisk2_S000024504Summary107Member"
      id="ixv-123601">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_IncomeRisk2_S000024504Summary107Member"
      id="ixv-123611">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CallRisk2_S000024504Summary107Member"
      id="ixv-123616">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_DerivativesRisk2_S000024504Summary107Member"
      id="ixv-123621">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is 
derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_SecuritiesLendingRisk2_S000024504Summary107Member"
      id="ixv-123625">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_LiquidityRisk2_S000024504Summary107Member"
      id="ixv-123629">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments are difficult to purchase 
or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s performance may be reduced 
due to an inability to sell the investments at opportune prices or times. Liquid portfolio investments 
may become illiquid or less liquid after purchase by a fund due to low trading volume, adverse investor 
perceptions, credit tightening and/or other market developments. Liquidity risk includes the risk that 
a fund will experience significant net redemptions at a time when it cannot find willing buyers for its 
portfolio securities or can only sell its portfolio securities at a material loss or at increased costs. 
Liquidity risk can be more pronounced in periods of market turmoil or in situations where ownership of 
shares of a fund are concentrated in one or a few investors. Investments that are illiquid or that trade 
in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_OperationalRisk2_S000024504Summary107Member"
      id="ixv-123634">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund and its 
advisor seek to reduce these operational risks through controls and procedures. However, measures that 
seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_CyberSecurityRisk2_S000024504Summary107Member"
      id="ixv-123639">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;information, customer data, or fund assets, or cause the fund and/or its service 
providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277878"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-123654">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the VA Global Moderate Allocation 
Portfolio&#x2019;s returns and are meant to provide some indication of the risks of investing in the Portfolio. 
The Class L10 shares of the Portfolio are a new class of shares for which performance information is 
not available, therefore, the bar chart and table show performance information for the Institutional 
Class shares of the Portfolio, another class of shares of the Portfolio not offered in this Prospectus. 
The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from 
year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance 
company separate account charges, which if reflected would lower returns. The table illustrates how annualized 
returns of the Institutional Class shares of the Portfolio for certain periods compare with those of 
a broad measure of market performance. The table also includes the performance of additional indexes 
with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results. Updated performance 
information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
 Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in 
the table.  In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277879">The 
bar chart and table immediately following illustrate the variability of the VA Global Moderate Allocation 
Portfolio&#x2019;s returns and are meant to provide some indication of the risks of investing in the Portfolio. 
The Class L10 shares of the Portfolio are a new class of shares for which performance information is 
not available, therefore, the bar chart and table show performance information for the Institutional 
Class shares of the Portfolio, another class of shares of the Portfolio not offered in this Prospectus. 
The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from 
year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:BarChartReturnsForClassNotOfferedInProspectus
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277880">The Class L10 shares of the Portfolio are a new class of shares for which performance information is 
not available, therefore, the bar chart and table show performance information for the Institutional 
Class shares of the Portfolio, another class of shares of the Portfolio not offered in this Prospectus.</oef:BarChartReturnsForClassNotOfferedInProspectus>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277881"> The Portfolio&#x2019;s 
past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277882">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277883">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277884">In addition, the after-tax returns shown are not relevant to investors who hold shares of 
the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277885">Dimensional 
VA Global Moderate Allocation Portfolio&#x2005;Institutional Class Shares1 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="ixv-277886">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="ixv-277887">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9024_"
      unitRef="pure">0.1404</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="ixv-277889">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9027_"
      unitRef="pure">-0.1653</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="ixv-277891">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="ixv-277892">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="_9031_">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9032_"
      unitRef="pure">0.1468</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9033_"
      unitRef="pure">0.0842</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9034_"
      unitRef="pure">0.0865</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="_9035_">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9036_"
      unitRef="pure">0.1328</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9037_"
      unitRef="pure">0.0710</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9038_"
      unitRef="pure">0.0749</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      id="_9039_">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9040_"
      unitRef="pure">0.0886</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9041_"
      unitRef="pure">0.0610</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000125332Member_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9042_"
      unitRef="pure">0.0651</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_VAGlobalModerateAllocationCompositeIndex3358_S000024504Member_S000024504Summary107Member"
      id="_9043_">VA Global Moderate Allocation 
Composite Index2</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000024504Member_S000024504Summary107Member"
      id="_9044_">(reflects no deduction for 
fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_VAGlobalModerateAllocationCompositeIndex3359_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9045_"
      unitRef="pure">0.1579</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_VAGlobalModerateAllocationCompositeIndex3359_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9046_"
      unitRef="pure">0.0775</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_VAGlobalModerateAllocationCompositeIndex3359_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9047_"
      unitRef="pure">0.0824</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3360_S000024504Member_S000024504Summary107Member"
      id="_9048_">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3361_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9050_"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3361_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9051_"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3361_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9052_"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3362_S000024504Member_S000024504Summary107Member"
      id="_9053_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)3</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3363_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9055_"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3363_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9056_"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3363_S000024504Member_S000024504Summary107Member"
      decimals="INF"
      id="_9057_"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277918"> DFA Commodity Strategy Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277919"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125103">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the DFA Commodity Strategy Portfolio (the &#x201c;Portfolio&#x201d;) is to seek total return 
consisting of capital appreciation and current income.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277920"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125110">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277921">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277922">Annual 
Fund Operating Expenses (expenses that you pay each                      year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277923"
      unitRef="pure">0.0028</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277924"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277925"
      unitRef="pure">0.0032</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277926">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125169">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277927"
      unitRef="usd">33</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277928"
      unitRef="usd">33</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277929"
      unitRef="usd">103</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277930"
      unitRef="usd">103</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277931"
      unitRef="usd">180</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277932"
      unitRef="usd">180</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277933"
      unitRef="usd">180</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277934"
      unitRef="usd">406</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277935"
      unitRef="usd">406</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277936"
      unitRef="usd">406</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277937">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125196">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;69%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277938"
      unitRef="pure">0.69</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277939"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125206">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Commodity Strategy Portfolio seeks to achieve its 
investment objective by generally investing in a universe of allowable commodity-linked derivative instruments 
and fixed income investment opportunities. The Portfolio gains exposure to commodities markets by investing 
in derivative instruments, such as structured notes whose principal and/or coupon payments are linked 
to commodities or commodity indices, in swap agreements, and/or in other commodity-linked instruments 
(such as futures contracts on individual commodities or commodity indices). The Portfolio may invest 
up to 25% of its total assets in Dimensional Cayman Commodity Fund I Ltd. (the &#x201c;Subsidiary&#x201d;), a wholly-owned 
subsidiary of the Portfolio formed in the Cayman Islands, which has the same investment objective as 
the Portfolio and has a strategy of investing in derivative instruments, such as commodity-linked swap 
agreements and other commodity-linked instruments, futures contracts on individual commodities or &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;commodity indices, and options on these instruments. The Portfolio, directly and/or 
through its investment in the Subsidiary, expects to use such derivatives extensively as part of its 
investment strategy.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Commodity Strategy Portfolio will invest in obligations 
issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, bank 
obligations, commercial paper, repurchase agreements, money market funds, obligations of other domestic 
and foreign issuers having investment grade ratings (e.g., rated AAA to BBB- by S&amp;amp;P Global Ratings 
(&#x201c;S&amp;amp;P&#x201d;) or Fitch Ratings Ltd. (&#x201c;Fitch&#x201d;) or Aaa to Baa3 by Moody&#x2019;s Ratings (&#x201c;Moody&#x2019;s&#x201d;)), 
securities of domestic or foreign issuers denominated in U.S. dollars but not trading in the United States, 
and obligations of supranational organizations. Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) expects 
that the Portfolio will primarily invest in the obligations of issuers that are in developed countries. 
The fixed income securities in which the Portfolio invests are considered investment grade at the time 
of purchase. In addition, the Portfolio is authorized to invest more than 25% of its total assets in 
U.S. Treasury bonds, bills and notes, and obligations of federal agencies and instrumentalities.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA Commodity Strategy Portfolio&#x2019;s fixed income securities primarily will mature within five years 
from the date of settlement, and the Portfolio maintains a weighted average duration of three years or 
less. Duration is a measure of the sensitivity of a security&#x2019;s price to changes in interest rates. 
The longer a security&#x2019;s duration, the more sensitive it will be to changes in interest rates. Similarly, 
a portfolio with a longer average portfolio duration will be more sensitive to changes in interest rates 
than a fund with a shorter average portfolio duration. In making purchase decisions, if the expected 
term premium is greater for longer-term securities in the eligible maturity range, the Advisor will focus 
investment in the longer-term area, otherwise, the Portfolio will focus investment in the shorter-term 
area of the eligible maturity range.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The DFA Commodity Strategy Portfolio&#x2019;s 
investments may include securities denominated in foreign currencies. The Portfolio intends to hedge 
foreign currency exposure to protect against uncertainty in the level of future foreign currency rates, 
to hedge against fluctuations in currency exchange rates or to transfer balances from one currency to 
another. The Portfolio may hedge such currency exposure by entering into foreign currency forward contracts. 
The Portfolio also may enter into credit default swaps on issuers or indices to buy or sell credit protection 
to hedge its credit exposure, gain market or issuer exposure without owning the underlying securities, 
or increase the Portfolio&#x2019;s expected total return. The Portfolio may purchase or sell futures contracts 
and options on futures contracts, to hedge its currency exposure or to hedge its interest rate exposure 
or for non-hedging purposes, such as a substitute for direct investment or to increase or decrease market 
exposure based on actual or expected cash inflows to or outflows from the Portfolio.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
DFA Commodity Strategy Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_PrincipalRisks2_S000030217Summary108Member"
      id="ixv-125217">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x5x14"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_RiskLoseMoneyMember_S000030217Summary108Member"
      id="ixv-277940">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_RiskNotInsuredMember_S000030217Summary108Member"
      id="ixv-277941">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_MarketRisk2_S000030217Summary108Member"
      id="ixv-125223">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_CommodityRisk2_S000030217Summary108Member"
      id="ixv-125228">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Commodity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The value of commodity-linked derivative instruments may be affected by changes 
in overall market movements, commodity index volatility, changes in interest rates, or factors affecting 
a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs, 
and international economic, political, and regulatory developments.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_DerivativesRisk2_S000030217Summary108Member"
      id="ixv-125233">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as futures, and options thereon, foreign currency forward contracts and swaps, whose value is derived 
from that of other assets, rates or indices. Derivatives can be used for hedging (attempting to reduce 
risk by offsetting one investment position with another) or non-hedging purposes. While hedging can reduce 
or eliminate losses, it also can reduce or eliminate gains or cause losses if the market moves in a manner 
different from that anticipated by a fund or if the cost of the derivative outweighs the benefit of &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;the hedge. In regard to currency hedging, it is generally not possible to precisely 
match the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks, including commodity, counterparty, correlation, 
interest rate, liquidity, market, credit and management risks, as well as difficulties with respect to 
valuation. A fund also may use derivatives for leverage. A fund&#x2019;s use of derivatives, particularly 
commodity-linked derivatives, involves risks different from, or possibly greater than, the risks associated 
with investing directly in securities and other traditional investments. Use of leveraged commodity-linked 
derivatives creates an opportunity for increased return but, at the same time, creates the possibility 
for greater loss (including the likelihood of greater volatility of a fund&#x2019;s net asset value), and 
there can be no assurance that a fund&#x2019;s use of leverage will be successful. Changes in the value of 
a derivative may not correlate perfectly with the underlying asset, rate, or index, and a fund could 
lose more than the principal amount invested. For example, potential losses from commodity-linked notes 
or swap agreements can be unlimited. Additional risks are associated with the use of credit default swaps, 
including counterparty and credit risk (the risk that the other party to a swap agreement will not fulfill 
its contractual obligations, whether because of bankruptcy or other default), and settlement risk (the 
risk faced when one party to a transaction has performed its obligations under a contract but has not 
yet received value from its counterparty) and liquidity risk (the possible lack of a secondary market 
for the swap agreement). Also, suitable derivative transactions may not be available in all circumstances 
and there can be no assurance that a fund will engage in these transactions to reduce exposure to other 
risks when that would be beneficial.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_FocusRisk2_S000030217Summary108Member"
      id="ixv-125242">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
A fund may be exposed, from time to time, to the performance of a small number of commodity sectors (e.g., 
energy, metals or agricultural), which may represent a large portion of a fund. As a result, a fund may 
be subject to greater volatility than if a fund were more broadly diversified among commodity sectors.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_ForeignSecuritiesandCurrenciesRisk2_S000030217Summary108Member"
      id="ixv-125246">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio hedges foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_ForeignGovernmentDebtRisk2_S000030217Summary108Member"
      id="ixv-125252">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_InterestRateRisk2_S000030217Summary108Member"
      id="ixv-125257">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_CreditRisk2_S000030217Summary108Member"
      id="ixv-125262">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security, or the counterparty to an agreement or contract, including 
a derivative instrument, such as a credit default swap, may be unable or unwilling to meet its financial 
obligations. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the 
U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_CallRisk2_S000030217Summary108Member"
      id="ixv-125272">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_LiquidityRisk2_S000030217Summary108Member"
      id="ixv-125277">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments at opportune 
prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by a 
fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market developments. 
Liquidity risk includes the risk that a fund will experience significant net redemptions at a time when 
it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities 
at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market 
turmoil or in situations where ownership of shares of a fund are concentrated in one or a few investors. 
Investments that are illiquid or that trade in lower volumes may be more difficult to value. Certain 
portfolio holdings, such as commodity-linked derivative instruments and swap agreements, may be difficult 
or impossible to sell at the time and the price that a fund would like. A Fund may have to lower the 
price, sell other holdings instead, or forego an investment opportunity. Any of these could have a negative 
effect on management of a fund or the fund's performance.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_SubsidiaryRisk2_S000030217Summary108Member"
      id="ixv-125282">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Subsidiary Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;By investing in the Subsidiary, 
the Portfolio is indirectly exposed to the risks associated with the Subsidiary&#x2019;s investments. The 
derivatives and other investments held by the Subsidiary are generally similar to those that are permitted 
to be held by the Portfolio and are subject to the same risks that apply to similar investments if held 
directly by the Portfolio. These risks are described elsewhere in this Prospectus. There can be no assurance 
that the investment objective of the Subsidiary will be achieved. The Subsidiary is not registered under 
the Investment Company Act of 1940, as amended (the &#x201c;1940 Act&#x201d;), and, unless otherwise noted in this 
Prospectus, is not subject to all of the investor protections of the 1940 Act. However, the Portfolio 
wholly owns and controls the Subsidiary, and the Portfolio and the Subsidiary are both managed by the 
Advisor, making it unlikely that the Subsidiary will take action contrary to the interests of the Portfolio 
and its shareholders. The Board of Directors of DFA Investment Dimensions Group Inc. (the &#x201c;Fund&#x201d;) 
has oversight responsibility for the investment activities of the Portfolio, including its investment 
in the Subsidiary, and the Portfolio&#x2019;s role as the sole shareholder of the Subsidiary. The Subsidiary 
will be subject to investment restrictions and limitations and compliance policies and procedures substantially 
similar to those imposed on the Portfolio by the 1940 Act. Changes in the laws of the United States and/or 
the Cayman Islands could result in the inability of the Portfolio and/or the Subsidiary to continue to 
operate as it does currently and could adversely affect the Portfolio. For example, the Cayman Islands 
currently do not impose any income, corporate, or capital gains tax, estate duty, inheritance tax, gift 
tax, or withholding tax on the Subsidiary. If Cayman Islands law changes, such that the Subsidiary must 
pay Cayman Islands taxes, fund shareholders likely would suffer decreased investment returns.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_TaxRisk2_S000030217Summary108Member"
      id="ixv-125287">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The tax treatment of commodity-linked 
derivative instruments may be adversely affected by changes in legislation, regulations or other legally 
binding authority. If, as a result of any such adverse action, the income of a fund from certain commodity-linked 
derivatives was treated as non-qualifying income, a fund might fail to qualify as a regulated investment 
company and be subject to federal income tax at a fund level. As a regulated investment company, the 
Portfolio must derive at least 90% of its gross income for each taxable year from sources treated as 
qualifying income under the Internal Revenue Code of 1986, as amended (the &#x201c;Code&#x201d;). The Portfolio 
has obtained private letter rulings from the Internal Revenue Service confirming that the income the 
Portfolio derives from a form of commodity-linked note and the Subsidiary constitutes qualifying income 
under the Code. However, the portion of such rulings regarding the treatment of commodity-linked notes 
held directly by the Portfolio was revoked because of changes in the IRS&#x2019;s position. Despite the rulings, 
the Portfolio historically has not invested directly in commodity-linked notes. As a result, the Portfolio 
may invest in commodity-linked notes only: (a) directly, to the extent that such investments constitute 
securities under section 2(a)(36) of the 1940 Act (because such securities generate qualifying income 
to a regulated investment company, such as the Portfolio), (b) directly, to the extent that the Portfolio 
&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;believes such investments would not prohibit the Portfolio 
from qualifying as a regulated investment company regardless of the status of the investment as a security 
under section 2(a)(36) of the 1940 Act, or (c) indirectly, as the Portfolio traditionally has done, through 
the Subsidiary. If the Portfolio does not appropriately limit such investments or if such investments 
(or the income earned on such investments) were to be recharacterized for U.S. tax purposes, the Portfolio 
could fail to qualify as a regulated investment company. In lieu of potential disqualification, the Portfolio 
is permitted to pay a tax for certain failures to satisfy the income requirement, which, in general, 
are limited to those due to reasonable cause and not willful neglect. The Portfolio also may incur transaction 
and other costs to comply with any new or additional guidance from the Internal Revenue Service. For 
more information, please see the &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;TAXATION OF THE PORTFOLIO AND ITS SHAREHOLDERS&#x201d;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
section in the Portfolio&#x2019;s Statement of Additional Information.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_LeveragingRisk2_S000030217Summary108Member"
      id="ixv-125300">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Leveraging Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Certain transactions that 
a fund may enter into may give rise to a form of leverage. Such transactions may include, among others, 
structured notes, swap agreements, futures contracts, and loans of portfolio securities. The use of leverage 
may cause a fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy 
its obligations. Leverage may cause a fund to be more volatile than if the fund had not been leveraged. 
This is because leverage tends to exaggerate the effect of any increase or decrease in the value of a 
fund&#x2019;s portfolio securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_RegulatoryRisk2_S000030217Summary108Member"
      id="ixv-125305">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Regulatory 
Risk: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Governments, agencies, or other regulatory bodies may adopt or change laws or 
regulations that could adversely affect the issuer, the market value of the security, or a fund&#x2019;s performance.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_ValuationRisk2_S000030217Summary108Member"
      id="ixv-125309">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Valuation Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The lack of an active trading 
market may make it difficult to value a security held by a fund. Many commodity-linked derivative instruments 
are not actively traded.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_SecuritiesLendingRisk2_S000030217Summary108Member"
      id="ixv-125314">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities 
Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves the risk that the borrower may 
fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there 
may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover 
the securities and/or the value of the collateral falls, including the value of investments made with 
cash collateral. Securities lending also may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_OperationalRisk2_S000030217Summary108Member"
      id="ixv-125318">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include 
human error, changes in personnel, system changes, faults in communication, and failures in systems, 
technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various 
operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances 
at third parties. A fund and its advisor seek to reduce these operational risks through controls and 
procedures. However, measures that seek to reduce these operational risks through controls and procedures 
may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_CyberSecurityRisk2_S000030217Summary108Member"
      id="ixv-125323">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277942"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-125333">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277943">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277944"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277945">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277946">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277947">In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277948">DFA 
Commodity Strategy Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277949">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277950">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277951"
      unitRef="pure">0.2262</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277952">2022-03-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277953"
      unitRef="pure">-0.2251</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277954">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277955">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277956">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277957"
      unitRef="pure">0.1517</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277958"
      unitRef="pure">0.0966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277959"
      unitRef="pure">0.0573</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277960">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277961"
      unitRef="pure">0.1048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277962"
      unitRef="pure">0.0470</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277963"
      unitRef="pure">0.0296</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      id="ixv-277964">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277965"
      unitRef="pure">0.0893</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277966"
      unitRef="pure">0.0524</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000093002Member_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277967"
      unitRef="pure">0.0320</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergCommodityTotalReturnIndex3366_S000030217Member_S000030217Summary108Member"
      id="ixv-277968">Bloomberg Commodity Total Return 
Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000030217Member_S000030217Summary108Member"
      id="ixv-277969">(reflects 
no deduction for fees, expenses or taxes)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergCommodityTotalReturnIndex3367_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277970"
      unitRef="pure">0.1577</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergCommodityTotalReturnIndex3367_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277971"
      unitRef="pure">0.1064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergCommodityTotalReturnIndex3367_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277972"
      unitRef="pure">0.0573</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3368_S000030217Member_S000030217Summary108Member"
      id="ixv-277973">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3369_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277974"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3369_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277975"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3369_S000030217Member_S000030217Summary108Member"
      decimals="INF"
      id="ixv-277976"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277977"> International Large Cap Growth 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277978"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127099">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Large Cap Growth Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277979"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127106">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277980">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277981">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277982"
      unitRef="pure">0.0023</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277983"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277984"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277985">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127165">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277986"
      unitRef="usd">28</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277987"
      unitRef="usd">28</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277988"
      unitRef="usd">87</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277989"
      unitRef="usd">87</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277990"
      unitRef="usd">152</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277991"
      unitRef="usd">152</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277992"
      unitRef="usd">152</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277993"
      unitRef="usd">343</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277994"
      unitRef="usd">343</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277995"
      unitRef="usd">343</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277996">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127192">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;13%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-277997"
      unitRef="pure">0.13</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-277998"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127202">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Large Cap 
Growth Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Large Cap Growth Portfolio is designed to 
purchase securities of large, non-U.S. companies in countries with developed markets that the Advisor 
determines to have high profitability and high relative prices &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;compared to other non-U.S. large cap companies at the time of purchase. A company&#x2019;s 
market capitalization is the number of its shares outstanding times its price per share. Under a market 
capitalization weighted approach, companies with higher market capitalizations generally represent a 
larger proportion of the Portfolio than companies with relatively lower market capitalizations. Securities 
are considered higher relative price (growth) stocks primarily because a company&#x2019;s shares have a high 
price in relation to their book value (a &#x201c;price to book ratio&#x201d;) when compared with other non-U.S. 
large cap companies. The Advisor may overweight certain stocks, including smaller companies, lower relative 
price stocks, and/or higher profitability stocks within the large-cap growth segment of developed ex 
U.S. markets. In assessing relative price, the Advisor may consider additional factors such as price 
to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because 
it has high earnings or profits from operations in relation to its book value or assets. The criteria 
the Advisor uses for assessing relative price or profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Large Cap Growth Portfolio intends to purchase securities of non-U.S. large cap companies 
that are eligible based on their relative price and expected profitability and are associated with developed 
market countries that the Advisor has designated as approved markets. As a non-fundamental policy, under 
normal circumstances, the Portfolio will invest at least 80% of its net assets in securities of large 
companies in the particular markets in which it invests. The Advisor determines the minimum market capitalization 
of a large company with respect to each country or region in which the Portfolio invests. In the countries 
or regions authorized for investment, the Advisor first ranks eligible companies listed on selected exchanges 
based on the companies&#x2019; market capitalizations. The Advisor then determines the universe of eligible 
stocks by defining the minimum market capitalization of a large company that may be purchased by the 
Portfolio with respect to each country or region. Based on market capitalization data as of December 
31, 2025, for the Portfolio, the market capitalization of a large company in any country in which the 
Portfolio invests would be $1,852 million or above. This threshold will vary by country or region. For 
example, based on market capitalization data as of December 31, 2025, the Advisor would consider a large 
company in the European Economic and Monetary Union (&#x201c;EMU&#x201d;) to have a market capitalization of at 
least $13,667 million, a large company in Norway to have a market capitalization of at least $1,934 million, 
and a large company in Switzerland to have a market capitalization of at least $16,226 million. These 
thresholds will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Advisor may also increase 
or reduce the International Large Cap Growth Portfolio&#x2019;s exposure to an eligible company, or exclude 
a company, based on shorter-term considerations, such as a company&#x2019;s price momentum and short-run reversals. 
In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for 
opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Large Cap Growth Portfolio may gain exposure 
to companies associated with approved markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio also may 
purchase or sell futures contracts and options on futures contracts for foreign and U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated in 
foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Large Cap Growth 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_PrincipalRisks2_S000039440Summary109Member"
      id="ixv-127214">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x15"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_RiskLoseMoneyMember_S000039440Summary109Member"
      id="ixv-277999">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_RiskNotInsuredMember_S000039440Summary109Member"
      id="ixv-278000">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_EquityMarketRisk2_S000039440Summary109Member"
      id="ixv-127220">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_GrowthInvestmentRisk2_S000039440Summary109Member"
      id="ixv-127228">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause the Portfolio to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_ProfitabilityInvestmentRisk2_S000039440Summary109Member"
      id="ixv-127233">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_ForeignSecuritiesandCurrenciesRisk2_S000039440Summary109Member"
      id="ixv-127237">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_GeographicFocusRisk2_S000039440Summary109Member"
      id="ixv-127244">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_DerivativesRisk2_S000039440Summary109Member"
      id="ixv-127249">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_SecuritiesLendingRisk2_S000039440Summary109Member"
      id="ixv-127253">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_OperationalRisk2_S000039440Summary109Member"
      id="ixv-127257">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_CyberSecurityRisk2_S000039440Summary109Member"
      id="ixv-127262">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;information, customer data, or fund assets, or cause the fund and/or its service 
providers to suffer data corruption or lose operational functionality.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278001"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-127277">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278002">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278003"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278004">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278005">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278006">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278007">International 
Large Cap Growth Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278008">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278009">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278010"
      unitRef="pure">0.1806</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278011">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278012"
      unitRef="pure">-0.2008</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278013">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278014">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278015">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278016"
      unitRef="pure">0.2557</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278017"
      unitRef="pure">0.0681</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278018"
      unitRef="pure">0.0823</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278019">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278020"
      unitRef="pure">0.2506</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278021"
      unitRef="pure">0.0638</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278022"
      unitRef="pure">0.0778</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      id="ixv-278023">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278024"
      unitRef="pure">0.1563</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278025"
      unitRef="pure">0.0535</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121547Member_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278026"
      unitRef="pure">0.0666</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAGrowthIndexnetdividends3370_S000039440Member_S000039440Summary109Member"
      id="ixv-278027">MSCI World ex USA Growth Index (net 
dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039440Member_S000039440Summary109Member"
      id="ixv-278028">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAGrowthIndexnetdividends3371_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278029"
      unitRef="pure">0.2194</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAGrowthIndexnetdividends3371_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278030"
      unitRef="pure">0.0490</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAGrowthIndexnetdividends3371_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278031"
      unitRef="pure">0.0767</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3372_S000039440Member_S000039440Summary109Member"
      id="ixv-278032">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3373_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278033"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3373_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278034"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3373_S000039440Member_S000039440Summary109Member"
      decimals="INF"
      id="ixv-278035"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278036"> International Small Cap Growth 
Portfolio</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278037"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127612">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the International Small Cap Growth Portfolio (the &#x201c;Portfolio&#x201d;) is to achieve 
long-term capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278038"> Fees and Expenses of the 
Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127619">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the fees and expenses 
you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees, such 
as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table 
and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278039">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278040">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278041"
      unitRef="pure">0.0039</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278042"
      unitRef="pure">0.0006</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278043"
      unitRef="pure">0.0045</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278044">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127678">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278045"
      unitRef="usd">46</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278046"
      unitRef="usd">46</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278047"
      unitRef="usd">144</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278048"
      unitRef="usd">144</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278049"
      unitRef="usd">252</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278050"
      unitRef="usd">252</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278051"
      unitRef="usd">252</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278052"
      unitRef="usd">567</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278053"
      unitRef="usd">567</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278054"
      unitRef="usd">567</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278055">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127705">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected 
in Annual Fund Operating Expenses or in the Example, affect the Portfolio&#x2019;s performance. During the 
most recent fiscal year, the Portfolio's portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;20%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
of the average value of its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278056"
      unitRef="pure">0.20</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278057"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127715">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;To achieve the International Small Cap 
Growth Portfolio&#x2019;s investment objective, Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) implements 
an integrated investment approach that combines research, portfolio design, portfolio management, and 
trading functions. As further described below, the Portfolio&#x2019;s design emphasizes long-term drivers 
of expected returns identified by the Advisor&#x2019;s research, while balancing risk through broad diversification 
across companies, sectors, and countries. The Advisor&#x2019;s portfolio management and trading processes 
further balance those long-term drivers of expected returns with shorter-term drivers of expected returns 
and trading costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Small Cap Growth Portfolio, using a market 
capitalization weighted approach, is designed to purchase securities of small, non-U.S. companies in 
countries with developed markets that the Advisor determines to have high profitability and high relative 
prices compared to other non-U.S. small cap companies at the time of &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;purchase. A company&#x2019;s market capitalization is the number of its shares outstanding 
times its price per share. Under a market capitalization weighted approach, companies with higher market 
capitalizations generally represent a larger proportion of the Portfolio than companies with relatively 
lower market capitalizations. Securities are considered higher relative price (growth) stocks primarily 
because a company&#x2019;s shares have a high price in relation to their book value (a &#x201c;price to book ratio&#x201d;) 
when compared with other non-U.S. small cap companies. The Portfolio may emphasize certain stocks, including 
smaller capitalization companies, lower relative price stocks, and/or higher profitability stocks as 
compared to their representation in the small-cap growth segment of developed ex-U.S. markets. In assessing 
relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings 
ratios. An equity issuer is considered to have high profitability because it has high earnings or profits 
from operations in relation to its book value or assets. The criteria the Advisor uses for assessing 
relative price and profitability are subject to change from time to time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
International Small Cap Growth Portfolio intends to purchase securities of non-U.S. small cap companies 
that are eligible based on their relative price and expected profitability and are associated with developed 
market countries that the Advisor has designated as approved markets. As a non-fundamental policy, under 
normal circumstances, the Portfolio will invest at least 80% of its net assets in securities of small 
companies in the particular markets in which it invests. The Advisor determines the maximum market capitalization 
of a small company with respect to each country in which the Portfolio invests. In the countries or regions 
authorized for investment, the Advisor first ranks eligible companies listed on selected exchanges based 
on the companies&#x2019; market capitalizations. The Advisor then determines the universe of eligible stocks 
by defining the maximum market capitalization of a small company that may be purchased by the Portfolio 
with respect to each country or region. Based on market capitalization data as of December 31, 2025, 
for the Portfolio, the market capitalization of a small company in any country in which the Portfolio 
invests would be below $16,226 million. This threshold will vary by country or region. For example, based 
on market capitalization data as of December 31, 2025, the Advisor would consider a small company in 
Switzerland to have a market capitalization below $16,226 million, a small company in Norway to have 
a market capitalization below $1,934 million, and a small company in Japan to have a market capitalization 
below $3,311 million. These thresholds will change due to market conditions.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Advisor may also increase or reduce the International Small Cap Growth Portfolio&#x2019;s exposure to an eligible 
company, or exclude a company, based on shorter-term considerations, such as a company&#x2019;s price momentum, 
short-run reversals, and investment characteristics. In assessing a company&#x2019;s investment characteristics, 
the Advisor considers ratios such as recent changes in assets divided by total assets. The criteria the 
Advisor uses for assessing a company&#x2019;s investment characteristics are subject to change from time to 
time. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks 
for opportunities to participate in the available market liquidity, while managing turnover and explicit 
transaction costs.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Small Cap Growth Portfolio may gain exposure 
to companies associated with approved markets by purchasing equity securities in the form of depositary 
receipts, which may be listed or traded outside the issuer&#x2019;s domicile country. The Portfolio also may 
purchase or sell futures contracts and options on futures contracts for foreign and U.S. equity securities 
and indices, to increase or decrease equity market exposure based on actual or expected cash inflows 
to or outflows from the Portfolio. Because many of the Portfolio&#x2019;s investments may be denominated in 
foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities or to transfer cash 
balances from one currency to another currency.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The International Small Cap Growth 
Portfolio may lend its portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_PrincipalRisks2_S000039441Summary110Member"
      id="ixv-127727">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x15"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_RiskLoseMoneyMember_S000039441Summary110Member"
      id="ixv-278058">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_RiskNotInsuredMember_S000039441Summary110Member"
      id="ixv-278059">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_EquityMarketRisk2_S000039441Summary110Member"
      id="ixv-127733">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_GrowthInvestmentRisk2_S000039441Summary110Member"
      id="ixv-127741">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Growth Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Growth 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause the Portfolio to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_ProfitabilityInvestmentRisk2_S000039441Summary110Member"
      id="ixv-127746">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_ForeignSecuritiesandCurrenciesRisk2_S000039441Summary110Member"
      id="ixv-127750">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign 
issuers may not be subject to uniform accounting, auditing and financial reporting standards and there 
may be less reliable and publicly available financial and other information about such issuers, as compared 
to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing 
dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing 
legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with 
respect to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally 
subject to the same risks as the foreign securities that they evidence or into which they may be converted. 
In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_GeographicFocusRisk2_S000039441Summary110Member"
      id="ixv-127757">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Geographic 
Focus Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;If a fund focuses its investments 
in securities of issuers located in a particular country or region, the fund may be subjected, to a greater 
extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions 
and developments that may be particular to that country or region, such as: adverse securities markets; 
adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other 
developments; or natural disasters.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_SmallCompanyRisk2_S000039441Summary110Member"
      id="ixv-127762">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities of small companies are often less liquid than those of large companies 
and this could make it difficult to sell a small company security at a desired time or price. As a result, 
small company stocks may fluctuate relatively more in price. In general, smaller capitalization companies 
are also more vulnerable than larger companies to adverse business or economic developments and they 
may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_DerivativesRisk2_S000039441Summary110Member"
      id="ixv-127766">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
The use of derivatives for non-hedging purposes may be considered to carry more risk than other types 
of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those 
derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, 
liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to 
valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, 
rate or index, and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_SecuritiesLendingRisk2_S000039441Summary110Member"
      id="ixv-127770">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_OperationalRisk2_S000039441Summary110Member"
      id="ixv-127774">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;procedures. However, measures that seek to reduce these operational risks through 
controls and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_CyberSecurityRisk2_S000039441Summary110Member"
      id="ixv-127784">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278060"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-127794">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of an additional index with a similar investment 
universe as the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes. 
Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown in the 
table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278061">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278062"> The Portfolio&#x2019;s past performance (before and after taxes) is not an indication 
of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278063">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278064">The 
after-tax returns presented in the table for the Portfolio are calculated using the historical highest 
individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278065">In addition, the after-tax returns shown are not relevant to investors who hold shares of the 
Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278066">International 
Small Cap Growth Portfolio&#x2005;Institutional Class Shares 
&#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278067">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278068">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278069"
      unitRef="pure">0.2547</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278070">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278071"
      unitRef="pure">-0.2842</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278072">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278073">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278074">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278075"
      unitRef="pure">0.2794</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278076"
      unitRef="pure">0.0431</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278077"
      unitRef="pure">0.0730</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278078">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278079"
      unitRef="pure">0.2746</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278080"
      unitRef="pure">0.0364</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278081"
      unitRef="pure">0.0660</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      id="ixv-278082">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278083"
      unitRef="pure">0.1708</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278084"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000121548Member_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278085"
      unitRef="pure">0.0582</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSASmallCapGrowthIndexnetdividends3374_S000039441Member_S000039441Summary110Member"
      id="ixv-278086">MSCI World ex USA Small Cap Growth 
Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000039441Member_S000039441Summary110Member"
      id="ixv-278087">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSASmallCapGrowthIndexnetdividends3375_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278088"
      unitRef="pure">0.2969</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSASmallCapGrowthIndexnetdividends3375_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278089"
      unitRef="pure">0.0316</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSASmallCapGrowthIndexnetdividends3375_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278090"
      unitRef="pure">0.0743</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_MSCIWorldexUSAIndexnetdividends3376_S000039441Member_S000039441Summary110Member"
      id="ixv-278091">MSCI World ex USA Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_MSCIWorldexUSAIndexnetdividends3377_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278092"
      unitRef="pure">0.3185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_MSCIWorldexUSAIndexnetdividends3377_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278093"
      unitRef="pure">0.0946</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_MSCIWorldexUSAIndexnetdividends3377_S000039441Member_S000039441Summary110Member"
      decimals="INF"
      id="ixv-278094"
      unitRef="pure">0.0855</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278095"> Dimensional Retirement Income 
Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278096"> 
Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-129875">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional Retirement Income Fund (the &#x201c;Retirement Income Portfolio&#x201d; 
or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the Portfolio&#x2019;s asset allocation. 
Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278097"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-129882">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278098">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278099">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278100"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278101"
      unitRef="pure">0.0015</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278102"
      unitRef="pure">0.0012</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278103"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="_9349_"
      unitRef="pure">-0.0009</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278105"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278106">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-129970">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278107"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278108"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278109"
      unitRef="usd">78</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278110"
      unitRef="usd">78</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278111"
      unitRef="usd">143</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278112"
      unitRef="usd">143</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278113"
      unitRef="usd">143</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278114"
      unitRef="usd">334</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278115"
      unitRef="usd">334</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278116"
      unitRef="usd">334</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278117">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-129997">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities for 
their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, 
affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;20%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278118"
      unitRef="pure">0.20</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278119"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-130010">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets among 
other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability 
to invest directly in securities and derivatives. The Retirement Income Portfolio is designed for an 
investor currently in retirement. To achieve its investment objective, the Portfolio allocates its assets 
to other mutual funds managed by the Advisor (i.e., the Underlying Funds) according to an asset allocation 
strategy designed for investors who have retired and are planning to withdraw the value of the investment 
in the Portfolio over many years. The asset allocation strategy for the Portfolio reflects the need for 
reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio may be able to 
support during an investor&#x2019;s retirement.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, 
the Retirement Income Portfolio has a target allocation of 15% to 25% to equity Underlying Funds and 
a target allocation of approximately 75% to 85% to fixed income Underlying Funds, which may include exposure 
through those fixed income Underlying Funds to U.S. Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;). 
As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying Funds that purchase 
a broad and diverse portfolio of securities of U.S. operating companies; (2) international equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of companies in developed and emerging 
markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities such 
as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, intermediate, and long-term. Certain equity Underlying Funds purchase 
a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Retirement Income 
Portfolio and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, 
to adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio 
or Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_PrincipalRisks2_S000050928Summary111Member"
      id="ixv-130016">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x16"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_RiskLoseMoneyMember_S000050928Summary111Member"
      id="ixv-278120">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_RiskNotInsuredMember_S000050928Summary111Member"
      id="ixv-278121">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_FundofFundsRisk2_S000050928Summary111Member"
      id="ixv-130022">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions regarding the allocation of a fund 
of funds&#x2019; assets among the underlying funds. A fund of funds may allocate assets to an underlying fund 
or asset class that underperforms other funds or asset classes.  There can be no assurance that the investment 
objective of a fund of funds or any underlying fund will be achieved. Through its investments in the 
underlying funds, a fund of funds is subject to the risks of the underlying funds&#x2019; investments. When 
a fund of funds invests in underlying funds, investors are exposed to a proportionate share of the expenses 
of those underlying funds in addition to the expenses of a fund of funds. Certain risks of the Underlying 
Funds&#x2019; investments that are principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_MarketRisk2_S000050928Summary111Member"
      id="ixv-130031">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even 
a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, 
and issuer-specific conditions and events will cause the value of securities, and a fund that owns them, 
to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_EquityMarketRisk2_S000050928Summary111Member"
      id="ixv-130036">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. Economic, market, 
environmental, political, and issuer-specific conditions and events will cause the value of equity securities, 
and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices 
and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_ForeignSecuritiesandCurrenciesRisk2_S000050928Summary111Member"
      id="ixv-130041">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities 
and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_ForeignGovernmentDebtRisk2_S000050928Summary111Member"
      id="ixv-130047">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_SmallandMid-CapCompanyRisk2_S000050928Summary111Member"
      id="ixv-130052">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_ProfitabilityInvestmentRisk2_S000050928Summary111Member"
      id="ixv-130057">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_ValueInvestmentRisk2_S000050928Summary111Member"
      id="ixv-130061">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_EmergingMarketsRisk2_S000050928Summary111Member"
      id="ixv-130066">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_InterestRateRisk2_S000050928Summary111Member"
      id="ixv-130073">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;prices fall. During periods of very low or negative interest rates, a fund may 
be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_CreditRisk2_S000050928Summary111Member"
      id="ixv-130083">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_RisksofInvestingforInflationProtection2_S000050928Summary111Member"
      id="ixv-130088">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in these 
securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050928Summary111Member"
      id="ixv-130093">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent nominal 
(stated) interest rates reduced by the expected impact of inflation. Generally, the value of an inflation-protected 
security will fall when real interest rates rise and will rise when real interest rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050928Summary111Member"
      id="ixv-130098">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income 
distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as 
a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_IncomeRisk2_S000050928Summary111Member"
      id="ixv-130103">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_CallRisk2_S000050928Summary111Member"
      id="ixv-130108">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_DerivativesRisk2_S000050928Summary111Member"
      id="ixv-130117">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives 
are instruments, such as futures contracts, and options thereon, and foreign currency forward contracts, 
whose value is derived from that of other assets, rates or indices. Derivatives can be used for hedging 
(attempting to reduce risk by offsetting one investment position with another) or non-hedging purposes. 
Hedging with derivatives may increase expenses, and there is no guarantee that a hedging strategy will 
work. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses 
if the market moves in a manner different from that anticipated by a fund or if the cost of the derivative 
outweighs the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely 
match the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_LiquidityRisk2_S000050928Summary111Member"
      id="ixv-130121">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments at opportune 
prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by a 
fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market developments. 
Liquidity risk includes the risk that a fund will experience significant net redemptions at a time when 
it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities 
at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market 
turmoil or in situations where ownership of shares of a fund are concentrated in one or a few investors. 
Investments that are illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_SecuritiesLendingRisk2_S000050928Summary111Member"
      id="ixv-130126">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_OperationalRisk2_S000050928Summary111Member"
      id="ixv-130130">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_CyberSecurityRisk2_S000050928Summary111Member"
      id="ixv-130135">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278122"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-130145">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the 
after-tax returns &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278123">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278124"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278125">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278126">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278127">In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278128">Retirement 
Income Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278129">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278130">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278131"
      unitRef="pure">0.0616</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278132">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278133"
      unitRef="pure">-0.0622</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278134">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278135">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278136">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278137"
      unitRef="pure">0.0881</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278138"
      unitRef="pure">0.0382</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278139"
      unitRef="pure">0.0470</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278140">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278141"
      unitRef="pure">0.0745</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278142"
      unitRef="pure">0.0249</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278143"
      unitRef="pure">0.0368</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      id="ixv-278144">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278145"
      unitRef="pure">0.0526</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278146"
      unitRef="pure">0.0238</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160528Member_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278147"
      unitRef="pure">0.0326</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3378_S000050928Member_S000050928Summary111Member"
      id="ixv-278148">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050928Member_S000050928Summary111Member"
      id="ixv-278149">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3379_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278150"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3379_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278151"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3379_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278152"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofAUS3-MonthTreasuryBillIndex3380_S000050928Member_S000050928Summary111Member"
      id="_9438_">ICE BofA US 3-Month Treasury 
Bill Index1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3381_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278154"
      unitRef="pure">0.0418</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3381_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278155"
      unitRef="pure">0.0317</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofAUS3-MonthTreasuryBillIndex3381_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278156"
      unitRef="pure">0.0218</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3382_S000050928Member_S000050928Summary111Member"
      id="ixv-278157">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3383_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278158"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3383_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278159"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3383_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278160"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3384_S000050928Member_S000050928Summary111Member"
      id="ixv-278161">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3385_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278162"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3385_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278163"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3385_S000050928Member_S000050928Summary111Member"
      decimals="INF"
      id="ixv-278164"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278165"> Dimensional 2015 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278166"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132196">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2015 Target Date Retirement Income Fund (the &#x201c;2015 Target Date 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the Portfolio&#x2019;s current 
asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278167"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132203">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278168">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278169">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278170"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278171"
      unitRef="pure">0.0015</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278172"
      unitRef="pure">0.0012</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278173"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="_9464_"
      unitRef="pure">-0.0009</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278175"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278176">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132291">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278177"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278178"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278179"
      unitRef="usd">78</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278180"
      unitRef="usd">78</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278181"
      unitRef="usd">143</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278182"
      unitRef="usd">143</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278183"
      unitRef="usd">143</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278184"
      unitRef="usd">334</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278185"
      unitRef="usd">334</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278186"
      unitRef="usd">334</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278187">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132318">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). 
A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when 
fund shares are held in a taxable account. The Portfolio does not pay transaction costs when buying and 
selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying Funds&#x201d;); however, 
the Underlying Funds pay transaction costs when buying and selling securities for their portfolio. These 
costs, which are not reflected in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Annual Fund Operating Expenses or in the Example, affect the 
Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate 
was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;8%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278188"
      unitRef="pure">0.08</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278189"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132333">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities and 
derivatives. The 2015 Target Date Portfolio is designed for an investor currently in retirement. To achieve 
its investment objective, the Portfolio allocates its assets to other mutual funds managed by the Advisor 
(i.e., the Underlying Funds) according to an asset allocation strategy designed for investors that retired 
in or within a few years of 2015 (the target date) and are planning to withdraw the value of the investment 
in the Portfolio over many years after the target date. Over time, the Portfolio&#x2019;s allocation to the 
Underlying Funds is expected to change based on an asset allocation strategy that generally becomes more 
conservative (reducing its allocation to equity Underlying Funds and increasing its allocation to fixed 
income Underlying Funds) until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date 
(i.e., 2030 in the case of the Portfolio), at which time the Portfolio reaches its final static asset 
allocation. At the final landing point, the Portfolio is expected to reach a final static asset allocation 
of 15% to 25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 
85% of its assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio 
reflects the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement in the years beyond the retirement target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the Portfolio 
has a target allocation of 15% to 35% to equity Underlying Funds and a target allocation of approximately 
65% to 85% to fixed income Underlying Funds, which may include exposure through those fixed income Underlying 
Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;). As 
of February 28, 2026, the 2015 Target Date Portfolio may invest in: (1) domestic equity Underlying Funds 
that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, intermediate, and long-term. Certain equity Underlying Funds purchase 
a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2015 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities. Certain Underlying Funds also may purchase or sell futures contracts 
and options on futures contracts, to hedge their interest rate exposure. Also, the Portfolio and the 
Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_PrincipalRisks2_S000050935Summary112Member"
      id="ixv-132342">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x5x17"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_RiskLoseMoneyMember_S000050935Summary112Member"
      id="ixv-278190">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_RiskNotInsuredMember_S000050935Summary112Member"
      id="ixv-278191">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_FundofFundsRisk2_S000050935Summary112Member"
      id="ixv-132348">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal 
risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_MarketRisk2_S000050935Summary112Member"
      id="ixv-132353">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_EquityMarketRisk2_S000050935Summary112Member"
      id="ixv-132358">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_ForeignSecuritiesandCurrenciesRisk2_S000050935Summary112Member"
      id="ixv-132363">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_ForeignGovernmentDebtRisk2_S000050935Summary112Member"
      id="ixv-132369">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_SmallandMid-CapCompanyRisk2_S000050935Summary112Member"
      id="ixv-132374">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_ProfitabilityInvestmentRisk2_S000050935Summary112Member"
      id="ixv-132382">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_ValueInvestmentRisk2_S000050935Summary112Member"
      id="ixv-132386">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_EmergingMarketsRisk2_S000050935Summary112Member"
      id="ixv-132391">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging 
Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_InterestRateRisk2_S000050935Summary112Member"
      id="ixv-132398">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_CreditRisk2_S000050935Summary112Member"
      id="ixv-132403">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P Global Ratings ("S&amp;amp;P") or Fitch Ratings Ltd. ("Fitch") or Ba1 or below by 
Moody's Ratings ("Moody's").&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_RisksofInvestingforInflationProtection2_S000050935Summary112Member"
      id="ixv-132408">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing 
for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or 
principal payments on an inflation-protected security are adjusted periodically for changes in inflation, 
the income distributed by a fund investing in such securities may be irregular. Although the U.S. Treasury 
guarantees to pay at maturity at least the original face value of any inflation-protected securities 
the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities are 
not protected against deflation. As a result, in a period of deflation, the principal and income of inflation-protected 
securities held by a fund will decline and the fund may suffer a loss during such periods. While inflation-protected 
securities are expected to be protected from long-term inflationary trends, short-term increases in inflation 
may lead to a decline in the value of a fund holding such securities. For example, if interest rates 
rise due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050935Summary112Member"
      id="ixv-132413">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;represent nominal (stated) interest rates reduced by the expected impact of inflation. 
Generally, the value of an inflation-protected security will fall when real interest rates rise and will 
rise when real interest rates fall.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050935Summary112Member"
      id="ixv-132423">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income 
distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as 
a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_IncomeRisk2_S000050935Summary112Member"
      id="ixv-132428">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_CallRisk2_S000050935Summary112Member"
      id="ixv-132433">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_DerivativesRisk2_S000050935Summary112Member"
      id="ixv-132438">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_LiquidityRisk2_S000050935Summary112Member"
      id="ixv-132442">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments at opportune 
prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by a 
fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market developments. 
Liquidity risk includes the risk that a fund will experience significant net redemptions at a time when 
it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities 
at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market 
turmoil or in situations where ownership of shares of a fund are concentrated in one or a few investors. 
Investments that are illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_SecuritiesLendingRisk2_S000050935Summary112Member"
      id="ixv-132447">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_OperationalRisk2_S000050935Summary112Member"
      id="ixv-132455">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, including 
instances at third parties. A fund and its advisor seek to reduce these operational risks through controls 
and procedures. However, measures that seek to reduce these operational risks through controls and procedures 
may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_CyberSecurityRisk2_S000050935Summary112Member"
      id="ixv-132460">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278192"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-132470">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278193">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278194"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278195">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278196">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278197">In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278198">2015 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278199">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278200">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278201"
      unitRef="pure">0.0825</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278202">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278203"
      unitRef="pure">-0.0955</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278204">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278205">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278206">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278207"
      unitRef="pure">0.1032</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278208"
      unitRef="pure">0.0331</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278209"
      unitRef="pure">0.0558</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278210">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278211"
      unitRef="pure">0.0823</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278212"
      unitRef="pure">0.0140</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278213"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      id="ixv-278214">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278215"
      unitRef="pure">0.0673</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278216"
      unitRef="pure">0.0188</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160535Member_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278217"
      unitRef="pure">0.0388</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3387_S000050935Member_S000050935Summary112Member"
      id="ixv-278218">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050935Member_S000050935Summary112Member"
      id="ixv-278219">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3388_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278220"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3388_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278221"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3388_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278222"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3389_S000050935Member_S000050935Summary112Member"
      id="_9553_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3390_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278224"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3390_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278225"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3390_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278226"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3391_S000050935Member_S000050935Summary112Member"
      id="ixv-278227">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3392_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278228"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3392_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278229"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3392_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278230"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3393_S000050935Member_S000050935Summary112Member"
      id="ixv-278231">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3394_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278232"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3394_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278233"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3394_S000050935Member_S000050935Summary112Member"
      decimals="INF"
      id="ixv-278234"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278235"> Dimensional 2020 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278236"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-132903">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2020 Target Date Retirement Income Fund (the &#x201c;2020 Target Date 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the Portfolio&#x2019;s current 
asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278237"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-132910">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278238">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278239">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278240"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278241"
      unitRef="pure">0.0007</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278242"
      unitRef="pure">0.0012</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278243"
      unitRef="pure">0.0019</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="_9579_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278245"
      unitRef="pure">0.0018</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278246">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-132998">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that 
result from the contractual expense waiver in the first year only. Although your actual costs may be 
higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be: 
&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278247"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278248"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278249"
      unitRef="usd">60</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278250"
      unitRef="usd">60</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278251"
      unitRef="usd">106</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278252"
      unitRef="usd">106</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278253"
      unitRef="usd">106</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278254"
      unitRef="usd">242</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278255"
      unitRef="usd">242</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278256"
      unitRef="usd">242</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278257">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-133025">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). 
A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when 
fund shares are held in a taxable account. The Portfolio does not pay transaction costs when buying and 
selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying Funds&#x201d;); however, 
the Underlying Funds pay transaction costs when buying and selling securities for their portfolio. These 
costs, which are not reflected in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Annual Fund Operating Expenses or in the Example, affect the 
Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate 
was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;5%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278258"
      unitRef="pure">0.05</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278259"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-133040">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities and 
derivatives. The 2020 Target Date Portfolio is designed for an investor currently in retirement. To achieve 
its investment objective, the Portfolio allocates its assets to other mutual funds managed by the Advisor 
(i.e., the Underlying Funds) according to an asset allocation strategy designed for investors that retired 
in or within a few years of 2020 (the target date) and are planning to withdraw the value of the investment 
in the Portfolio over many years after the target date. Over time, the Portfolio&#x2019;s allocation to the 
Underlying Funds is expected to change based on an asset allocation strategy that generally becomes more 
conservative (reducing its allocation to equity Underlying Funds and increasing its allocation to fixed 
income Underlying Funds) until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date 
(i.e., 2035 in the case of the Portfolio), at which time the Portfolio reaches its final static asset 
allocation. At the final landing point, the Portfolio is expected to reach a final static asset allocation 
of 15% to 25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 
85% of its assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio 
reflects the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement in the years beyond the retirement target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2020 Target 
Date Portfolio has a target allocation of 15% to 35% to equity Underlying Funds and a target allocation 
of approximately 65% to 85% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying Funds 
that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, intermediate, and long-term. Certain equity Underlying Funds purchase 
a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the invests as of the date of this Prospectus is described in the Portfolio&#x2019;s 
Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT 
OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2020 Target Date Portfolio and 
each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to adjust 
market exposure based on actual or expected cash inflows to or outflows from the Portfolio or Underlying 
Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including foreign 
currency forward contracts, in connection with the settlement of foreign securities, to hedge foreign 
currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances from 
one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities. Certain Underlying Funds also may purchase or sell futures contracts 
and options on futures contracts, to hedge their interest rate exposure. Also, the Portfolio and the 
Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_PrincipalRisks2_S000050936Summary113Member"
      id="ixv-133049">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x15x17"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_RiskLoseMoneyMember_S000050936Summary113Member"
      id="ixv-278260">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_RiskNotInsuredMember_S000050936Summary113Member"
      id="ixv-278261">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_FundofFundsRisk2_S000050936Summary113Member"
      id="ixv-133055">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal 
risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_MarketRisk2_S000050936Summary113Member"
      id="ixv-133060">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_EquityMarketRisk2_S000050936Summary113Member"
      id="ixv-133065">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_ForeignSecuritiesandCurrenciesRisk2_S000050936Summary113Member"
      id="ixv-133070">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_ForeignGovernmentDebtRisk2_S000050936Summary113Member"
      id="ixv-133076">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_SmallandMid-CapCompanyRisk2_S000050936Summary113Member"
      id="ixv-133081">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_ProfitabilityInvestmentRisk2_S000050936Summary113Member"
      id="ixv-133089">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_ValueInvestmentRisk2_S000050936Summary113Member"
      id="ixv-133093">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_EmergingMarketsRisk2_S000050936Summary113Member"
      id="ixv-133098">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging 
Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_InterestRateRisk2_S000050936Summary113Member"
      id="ixv-133105">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_CreditRisk2_S000050936Summary113Member"
      id="ixv-133110">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_RisksofInvestingforInflationProtection2_S000050936Summary113Member"
      id="ixv-133115">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in these 
securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050936Summary113Member"
      id="ixv-133120">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;represent nominal (stated) interest rates reduced by the expected impact of inflation. 
Generally, the value of an inflation-protected security will fall when real interest rates rise and will 
rise when real interest rates fall.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050936Summary113Member"
      id="ixv-133130">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income 
distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as 
a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_IncomeRisk2_S000050936Summary113Member"
      id="ixv-133135">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_CallRisk2_S000050936Summary113Member"
      id="ixv-133140">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_DerivativesRisk2_S000050936Summary113Member"
      id="ixv-133145">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_LiquidityRisk2_S000050936Summary113Member"
      id="ixv-133149">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments at opportune 
prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase by a 
fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market developments. 
Liquidity risk includes the risk that a fund will experience significant net redemptions at a time when 
it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities 
at a material loss or at increased costs. Liquidity risk can be more pronounced in periods of market 
turmoil or in situations where ownership of shares of a fund are concentrated in one or a few investors. 
Investments that are illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_SecuritiesLendingRisk2_S000050936Summary113Member"
      id="ixv-133154">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_OperationalRisk2_S000050936Summary113Member"
      id="ixv-133162">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, including 
instances at third parties. A fund and its advisor seek to reduce these operational risks through controls 
and procedures. However, measures that seek to reduce these operational risks through controls and procedures 
may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_CyberSecurityRisk2_S000050936Summary113Member"
      id="ixv-133167">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential risks 
linked to cyber security breaches of those technological or information systems. Cyber security breaches, 
amongst other things, could allow an unauthorized party to gain access to proprietary information, customer 
data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose 
operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278262"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-133177">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278263">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278264"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278265">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278266">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278267">In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278268">2020 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278269">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278270">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278271"
      unitRef="pure">0.0841</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278272">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278273"
      unitRef="pure">-0.1099</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278274">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278275">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278276">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278277"
      unitRef="pure">0.0999</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278278"
      unitRef="pure">0.0234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278279"
      unitRef="pure">0.0560</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278280">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278281"
      unitRef="pure">0.0790</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278282"
      unitRef="pure">0.0040</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278283"
      unitRef="pure">0.0413</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      id="ixv-278284">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278285"
      unitRef="pure">0.0646</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278286"
      unitRef="pure">0.0113</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160536Member_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278287"
      unitRef="pure">0.0391</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3396_S000050936Member_S000050936Summary113Member"
      id="ixv-278288">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050936Member_S000050936Summary113Member"
      id="ixv-278289">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3397_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278290"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3397_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278291"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3397_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278292"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3398_S000050936Member_S000050936Summary113Member"
      id="_9668_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3399_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278294"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3399_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278295"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3399_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278296"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3400_S000050936Member_S000050936Summary113Member"
      id="ixv-278297">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3401_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278298"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3401_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278299"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3401_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278300"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3402_S000050936Member_S000050936Summary113Member"
      id="ixv-278301">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3403_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278302"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3403_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278303"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3403_S000050936Member_S000050936Summary113Member"
      decimals="INF"
      id="ixv-278304"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278305"> Dimensional 2025 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278306"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133610">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2025 Target Date Retirement Income Fund (the &#x201c;2025 Target Date 
Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the Portfolio&#x2019;s current 
asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278307"> Fees 
and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133617">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This table describes the 
fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may 
pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not 
reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278308">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278309">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278310"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278311"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278312"
      unitRef="pure">0.0012</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278313"
      unitRef="pure">0.0016</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278314">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133681">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s operating 
expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions 
your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278315"
      unitRef="usd">16</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278316"
      unitRef="usd">16</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278317"
      unitRef="usd">52</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278318"
      unitRef="usd">52</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278319"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278320"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278321"
      unitRef="usd">90</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278322"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278323"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278324"
      unitRef="usd">205</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278325">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133708">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result 
in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities for 
their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, 
affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;15%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278326"
      unitRef="pure">0.15</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278327"> Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133718">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets among 
other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability 
to invest directly in securities and derivatives. To achieve its investment objective, the 2025 Target 
Date Portfolio allocates its assets to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2025 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2040 in the case 
of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At the final 
landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 25% of its 
assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its assets allocated 
to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects the need for 
reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio may be able to 
support in retirement as an investor gets closer to the target date. When the Portfolio reaches the landing 
point, it is expected that the Advisor will recommend that the Board of Directors of the Portfolio approve 
combining the Portfolio with the Dimensional Retirement Income Fund, another fund managed by the Advisor, 
which is expected to have approximately the same asset allocation as the Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
of February 28, 2026, the 2025 Target Date Portfolio has a target allocation of 15% to 35% to equity 
Underlying Funds and a target allocation of approximately 65% to 85% to fixed income Underlying Funds, 
which may include exposure through those fixed income Underlying Funds to long-term and intermediate-term 
U.S. Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may 
invest in: (1) domestic equity Underlying Funds that purchase a broad and diverse portfolio of securities 
of U.S. operating companies; (2) international equity Underlying Funds that purchase a broad and diverse 
portfolio of securities of companies in developed and emerging markets; and (3) fixed income Underlying 
Funds that may purchase U.S. and foreign debt securities such as obligations issued or guaranteed by 
the U.S. and foreign governments, their agencies and instrumentalities, long-, intermediate- and short-term 
TIPS, bank obligations, commercial paper, repurchase agreements, money market funds, obligations of other 
domestic and foreign issuers, securities of domestic and foreign issuers denominated in U.S. dollars 
but not trading in the United States, obligations of supranational organizations, and inflation-protected 
securities. The fixed income Underlying Funds primarily invest in securities that are considered investment 
grade at the time of purchase and which have a range of maturities, including ultra-short, short, intermediate, 
and long-term. Certain equity Underlying Funds purchase a broad and diverse group of securities of companies 
with a greater emphasis on smaller capitalization, lower relative price, and higher profitability companies 
as compared to their representation in the universe of securities such Underlying Funds invest in. A 
summary of the investment strategies and policies of the Underlying Funds in which the Portfolio invests 
as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus in the section entitled 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
2025 Target Date Portfolio and each Underlying Fund may purchase or sell futures contracts and options 
on futures contracts, to adjust market exposure based on actual or expected cash inflows to or outflows 
from the Portfolio or Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities, to hedge foreign currency risks, to hedge against fluctuations in currency exchange rates 
or to transfer balances from one currency to another. Certain Underlying Funds also may enter into swaps 
to hedge against inflation risk associated with certain securities or to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Underlying Fund&#x2019;s total return. Certain Underlying Funds also may purchase or sell 
futures contracts and options on futures contracts, to hedge their interest rate or currency exposure 
or for non-hedging purposes, such as a substitute for direct investment. Also, the Portfolio and the 
Underlying Funds may lend their portfolio securities to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_PrincipalRisks2_S000050937Summary114Member"
      id="ixv-133729">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x17"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The 
following is a description of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_RiskLoseMoneyMember_S000050937Summary114Member"
      id="ixv-278328">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_RiskNotInsuredMember_S000050937Summary114Member"
      id="ixv-278329">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_FundofFundsRisk2_S000050937Summary114Member"
      id="ixv-133735">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying funds. 
A fund of funds may allocate assets to an underlying fund or asset class that underperforms other funds 
or asset classes.  There can be no assurance that the investment objective of a fund of funds or any 
underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds is 
subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal 
risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_MarketRisk2_S000050937Summary114Member"
      id="ixv-133745">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment approach cannot guarantee a profit. 
Economic, market, environmental, political, and issuer-specific conditions and events will cause the 
value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_EquityMarketRisk2_S000050937Summary114Member"
      id="ixv-133750">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_ForeignSecuritiesandCurrenciesRisk2_S000050937Summary114Member"
      id="ixv-133755">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_ForeignGovernmentDebtRisk2_S000050937Summary114Member"
      id="ixv-133761">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_SmallandMid-CapCompanyRisk2_S000050937Summary114Member"
      id="ixv-133766">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_ProfitabilityInvestmentRisk2_S000050937Summary114Member"
      id="ixv-133771">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_ValueInvestmentRisk2_S000050937Summary114Member"
      id="ixv-133775">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_EmergingMarketsRisk2_S000050937Summary114Member"
      id="ixv-133780">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_InterestRateRisk2_S000050937Summary114Member"
      id="ixv-133792">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_CreditRisk2_S000050937Summary114Member"
      id="ixv-133797">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_RisksofInvestingforInflationProtection2_S000050937Summary114Member"
      id="ixv-133802">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in these 
securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050937Summary114Member"
      id="ixv-133807">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent nominal 
(stated) interest rates reduced by the expected impact of inflation. Generally, the value of an inflation-protected 
security will fall when real interest rates rise and will rise when real interest rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050937Summary114Member"
      id="ixv-133812">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income 
distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as 
a return of capital.&lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_IncomeRisk2_S000050937Summary114Member"
      id="ixv-133821">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among other 
reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_CallRisk2_S000050937Summary114Member"
      id="ixv-133826">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_DerivativesRisk2_S000050937Summary114Member"
      id="ixv-133831">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment position 
with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there is no 
guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can also 
reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. In regard to currency 
hedging, it is generally not possible to precisely match the foreign currency exposure of such foreign 
currency forward contracts to the value of the securities involved due to fluctuations in the market 
values of such securities and cash flows into and out of a fund between the date a foreign currency forward 
contract is entered into and the date it expires. The use of derivatives for non-hedging purposes may 
be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund 
will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number 
of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. Additional risks are associated with the use of swaps including counterparty and credit 
risk (the risk that the other party to a swap agreement will not fulfill its contractual obligations, 
whether because of bankruptcy or other default) and liquidity risk (the possible lack of a secondary 
market for the swap agreement). Credit risk increases when a fund is the seller of swaps and counterparty 
risk increases when the fund is a buyer of swaps. In addition, where a fund is the seller of swaps, it 
may be required to liquidate portfolio securities at inopportune times in order to meet payment obligations. 
Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_LiquidityRisk2_S000050937Summary114Member"
      id="ixv-133835">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_SecuritiesLendingRisk2_S000050937Summary114Member"
      id="ixv-133840">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_OperationalRisk2_S000050937Summary114Member"
      id="ixv-133844">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s or 
its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to reduce 
these operational risks through controls and procedures. However, measures that seek to reduce these 
operational risks through controls and procedures may not address every possible risk and may be inadequate 
to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_CyberSecurityRisk2_S000050937Summary114Member"
      id="ixv-133849">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology and information 
systems may expose the fund to potential risks linked to cyber security breaches of those technological 
or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party 
to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its 
service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278330"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-133863">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278331">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns and 
are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278332"> The Portfolio&#x2019;s past performance (before and 
after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278333">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278334">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278335">In addition, the 
after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278336">2025 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278337">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278338">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278339"
      unitRef="pure">0.1045</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278340">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278341"
      unitRef="pure">-0.1319</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278342">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278343">Annualized 
Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278344">Return 
Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278345"
      unitRef="pure">0.0945</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278346"
      unitRef="pure">0.0170</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278347"
      unitRef="pure">0.0589</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278348">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278349"
      unitRef="pure">0.0743</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278350"
      unitRef="pure">-0.0029</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278351"
      unitRef="pure">0.0440</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      id="ixv-278352">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278353"
      unitRef="pure">0.0601</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278354"
      unitRef="pure">0.0066</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160537Member_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278355"
      unitRef="pure">0.0418</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3405_S000050937Member_S000050937Summary114Member"
      id="ixv-278356">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050937Member_S000050937Summary114Member"
      id="ixv-278357">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3406_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278358"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3406_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278359"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3406_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278360"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3407_S000050937Member_S000050937Summary114Member"
      id="_9781_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3408_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278362"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3408_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278363"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3408_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278364"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3409_S000050937Member_S000050937Summary114Member"
      id="ixv-278365">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3410_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278366"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3410_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278367"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3410_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278368"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3411_S000050937Member_S000050937Summary114Member"
      id="ixv-278369">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3412_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278370"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3412_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278371"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3412_S000050937Member_S000050937Summary114Member"
      decimals="INF"
      id="ixv-278372"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278373"> Dimensional 2030 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278374"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137146">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2030 Target Date Retirement Income Fund (the &#x201c;2030 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278375"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137153">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278376">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278377">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278378"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278379"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278380"
      unitRef="pure">0.0013</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278381"
      unitRef="pure">0.0016</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278382">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137217">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278383"
      unitRef="usd">16</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278384"
      unitRef="usd">16</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278385"
      unitRef="usd">52</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278386"
      unitRef="usd">52</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278387"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278388"
      unitRef="usd">90</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278389"
      unitRef="usd">90</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278390"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278391"
      unitRef="usd">205</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278392"
      unitRef="usd">205</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278393">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137244">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;13%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278394"
      unitRef="pure">0.13</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278395"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137254">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2030 Target Date Portfolio allocates its assets 
to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2030 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2045 in 
the case of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At 
the final landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 
25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its 
assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects 
the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement as an investor gets closer to the target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2030 Target 
Date Portfolio has a target allocation of 30% to 55% to equity Underlying Funds and a target allocation 
of approximately 45% to 70% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2030 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_PrincipalRisks2_S000050938Summary115Member"
      id="ixv-137265">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_RiskLoseMoneyMember_S000050938Summary115Member"
      id="ixv-278396">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_RiskNotInsuredMember_S000050938Summary115Member"
      id="ixv-278397">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_FundofFundsRisk2_S000050938Summary115Member"
      id="ixv-137271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_EquityMarketRisk2_S000050938Summary115Member"
      id="ixv-137281">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_MarketRisk2_S000050938Summary115Member"
      id="ixv-137286">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_ForeignSecuritiesandCurrenciesRisk2_S000050938Summary115Member"
      id="ixv-137291">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_ForeignGovernmentDebtRisk2_S000050938Summary115Member"
      id="ixv-137297">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_SmallandMid-CapCompanyRisk2_S000050938Summary115Member"
      id="ixv-137302">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_ProfitabilityInvestmentRisk2_S000050938Summary115Member"
      id="ixv-137307">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_ValueInvestmentRisk2_S000050938Summary115Member"
      id="ixv-137311">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_EmergingMarketsRisk2_S000050938Summary115Member"
      id="ixv-137316">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_InterestRateRisk2_S000050938Summary115Member"
      id="ixv-137328">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_CreditRisk2_S000050938Summary115Member"
      id="ixv-137333">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_RisksofInvestingforInflationProtection2_S000050938Summary115Member"
      id="ixv-137338">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050938Summary115Member"
      id="ixv-137343">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050938Summary115Member"
      id="ixv-137348">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_IncomeRisk2_S000050938Summary115Member"
      id="ixv-137356">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_CallRisk2_S000050938Summary115Member"
      id="ixv-137361">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_DerivativesRisk2_S000050938Summary115Member"
      id="ixv-137366">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_LiquidityRisk2_S000050938Summary115Member"
      id="ixv-137370">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_SecuritiesLendingRisk2_S000050938Summary115Member"
      id="ixv-137375">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_OperationalRisk2_S000050938Summary115Member"
      id="ixv-137379">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_CyberSecurityRisk2_S000050938Summary115Member"
      id="ixv-137384">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278398"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-137397">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of additional indexes with similar investment universes of the Portfolio, or certain 
portions of the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278399">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278400"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278401">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278402">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278403">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278404">2030 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278405">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278406">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278407"
      unitRef="pure">0.1248</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278408">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278409"
      unitRef="pure">-0.1471</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278410">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278411">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278412">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278413"
      unitRef="pure">0.1035</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278414"
      unitRef="pure">0.0248</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278415"
      unitRef="pure">0.0669</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278416">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278417"
      unitRef="pure">0.0794</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278418"
      unitRef="pure">0.0057</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278419"
      unitRef="pure">0.0526</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      id="ixv-278420">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278421"
      unitRef="pure">0.0683</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278422"
      unitRef="pure">0.0134</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160538Member_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278423"
      unitRef="pure">0.0491</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3414_S000050938Member_S000050938Summary115Member"
      id="ixv-278424">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050938Member_S000050938Summary115Member"
      id="ixv-278425">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3415_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278426"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3415_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278427"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3415_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278428"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3416_S000050938Member_S000050938Summary115Member"
      id="_9894_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3417_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278430"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3417_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278431"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3417_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278432"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3418_S000050938Member_S000050938Summary115Member"
      id="ixv-278433">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3419_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278434"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3419_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278435"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3419_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278436"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3420_S000050938Member_S000050938Summary115Member"
      id="ixv-278437">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3421_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278438"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3421_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278439"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3421_S000050938Member_S000050938Summary115Member"
      decimals="INF"
      id="ixv-278440"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278441"> Dimensional 2035 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278442"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-137830">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2035 Target Date Retirement Income Fund (the &#x201c;2035 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278443"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-137837">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278444">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278445">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278446"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278447"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278448"
      unitRef="pure">0.0014</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278449"
      unitRef="pure">0.0017</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278450">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-137901">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278451"
      unitRef="usd">17</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278452"
      unitRef="usd">17</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278453"
      unitRef="usd">55</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278454"
      unitRef="usd">55</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278455"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278456"
      unitRef="usd">96</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278457"
      unitRef="usd">96</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278458"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278459"
      unitRef="usd">217</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278460"
      unitRef="usd">217</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278461">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-137928">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278462"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278463"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-137938">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2035 Target Date Portfolio allocates its assets 
to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2035 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2050 in 
the case of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At 
the final landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 
25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its 
assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects 
the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement as an investor gets closer to the target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2035 Target 
Date Portfolio has a target allocation of 30% to 55% to equity Underlying Funds and a target allocation 
of approximately 45% to 70% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2035 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_PrincipalRisks2_S000050939Summary116Member"
      id="ixv-137949">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x15x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_RiskLoseMoneyMember_S000050939Summary116Member"
      id="ixv-278464">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_RiskNotInsuredMember_S000050939Summary116Member"
      id="ixv-278465">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_FundofFundsRisk2_S000050939Summary116Member"
      id="ixv-137955">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_EquityMarketRisk2_S000050939Summary116Member"
      id="ixv-137965">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_MarketRisk2_S000050939Summary116Member"
      id="ixv-137970">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_ForeignSecuritiesandCurrenciesRisk2_S000050939Summary116Member"
      id="ixv-137975">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_ForeignGovernmentDebtRisk2_S000050939Summary116Member"
      id="ixv-137981">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_SmallandMid-CapCompanyRisk2_S000050939Summary116Member"
      id="ixv-137986">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_ProfitabilityInvestmentRisk2_S000050939Summary116Member"
      id="ixv-137991">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_ValueInvestmentRisk2_S000050939Summary116Member"
      id="ixv-137995">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_EmergingMarketsRisk2_S000050939Summary116Member"
      id="ixv-138000">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_InterestRateRisk2_S000050939Summary116Member"
      id="ixv-138012">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_CreditRisk2_S000050939Summary116Member"
      id="ixv-138017">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_RisksofInvestingforInflationProtection2_S000050939Summary116Member"
      id="ixv-138022">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050939Summary116Member"
      id="ixv-138027">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050939Summary116Member"
      id="ixv-138032">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_IncomeRisk2_S000050939Summary116Member"
      id="ixv-138040">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_CallRisk2_S000050939Summary116Member"
      id="ixv-138045">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_DerivativesRisk2_S000050939Summary116Member"
      id="ixv-138050">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_LiquidityRisk2_S000050939Summary116Member"
      id="ixv-138054">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_SecuritiesLendingRisk2_S000050939Summary116Member"
      id="ixv-138059">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_OperationalRisk2_S000050939Summary116Member"
      id="ixv-138063">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_CyberSecurityRisk2_S000050939Summary116Member"
      id="ixv-138068">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278466"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-138081">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of additional indexes with similar investment universes of the Portfolio, or certain 
portions of the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278467">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278468"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278469">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278470">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278471">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278472">2035 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278473">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278474">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278475"
      unitRef="pure">0.1449</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278476">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278477"
      unitRef="pure">-0.1475</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278478">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278479">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278480">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278481"
      unitRef="pure">0.1210</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278482"
      unitRef="pure">0.0446</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278483"
      unitRef="pure">0.0767</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278484">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278485"
      unitRef="pure">0.0976</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278486"
      unitRef="pure">0.0286</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278487"
      unitRef="pure">0.0647</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      id="ixv-278488">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278489"
      unitRef="pure">0.0793</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278490"
      unitRef="pure">0.0298</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160539Member_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278491"
      unitRef="pure">0.0582</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3423_S000050939Member_S000050939Summary116Member"
      id="ixv-278492">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050939Member_S000050939Summary116Member"
      id="ixv-278493">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3424_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278494"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3424_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278495"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3424_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278496"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3425_S000050939Member_S000050939Summary116Member"
      id="_10007_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3426_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278498"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3426_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278499"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3426_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278500"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3427_S000050939Member_S000050939Summary116Member"
      id="ixv-278501">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3428_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278502"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3428_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278503"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3428_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278504"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3429_S000050939Member_S000050939Summary116Member"
      id="ixv-278505">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3430_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278506"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3430_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278507"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3430_S000050939Member_S000050939Summary116Member"
      decimals="INF"
      id="ixv-278508"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278509"> Dimensional 2040 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278510"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138514">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2040 Target Date Retirement Income Fund (the &#x201c;2040 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278511"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138521">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278512">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278513">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278514"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278515"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278516"
      unitRef="pure">0.0015</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278517"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278518">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138585">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278519"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278520"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278521"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278522"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278523"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278524"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278525"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278526"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278527"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278528"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278529">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138612">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;13%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278530"
      unitRef="pure">0.13</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278531"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138622">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2040 Target Date Portfolio allocates its assets 
to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2040 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2055 in 
the case of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At 
the final landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 
25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its 
assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects 
the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement as an investor gets closer to the target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2040 Target 
Date Portfolio has a target allocation of 60% to 85% to equity Underlying Funds and a target allocation 
of approximately 15% to 40% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2040 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_PrincipalRisks2_S000050940Summary117Member"
      id="ixv-138633">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x25x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_RiskLoseMoneyMember_S000050940Summary117Member"
      id="ixv-278532">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_RiskNotInsuredMember_S000050940Summary117Member"
      id="ixv-278533">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_FundofFundsRisk2_S000050940Summary117Member"
      id="ixv-138639">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_EquityMarketRisk2_S000050940Summary117Member"
      id="ixv-138649">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_MarketRisk2_S000050940Summary117Member"
      id="ixv-138654">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_ForeignSecuritiesandCurrenciesRisk2_S000050940Summary117Member"
      id="ixv-138659">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_ForeignGovernmentDebtRisk2_S000050940Summary117Member"
      id="ixv-138665">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_SmallandMid-CapCompanyRisk2_S000050940Summary117Member"
      id="ixv-138670">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_ProfitabilityInvestmentRisk2_S000050940Summary117Member"
      id="ixv-138675">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_ValueInvestmentRisk2_S000050940Summary117Member"
      id="ixv-138679">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_EmergingMarketsRisk2_S000050940Summary117Member"
      id="ixv-138684">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_InterestRateRisk2_S000050940Summary117Member"
      id="ixv-138696">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_CreditRisk2_S000050940Summary117Member"
      id="ixv-138701">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest.Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P Global Ratings ("S&amp;amp;P") or Fitch Ratings Ltd. ("Fitch") or Ba1 or below by 
Moody's Ratings ("Moody's")).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_RisksofInvestingforInflationProtection2_S000050940Summary117Member"
      id="ixv-138706">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing 
for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because the interest and/or 
principal payments on an inflation-protected security are adjusted periodically for changes in inflation, 
the income distributed by a fund investing in such securities may be irregular. Although the U.S. Treasury 
guarantees to pay at maturity at least the original face value of any inflation-protected securities 
the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities are 
not protected against deflation. As a result, in a period of deflation, the principal and income of inflation-protected 
securities held by a fund will decline and the fund may suffer a loss during such periods. While inflation-protected 
securities are expected to be protected from long-term inflationary trends, short-term increases in inflation 
may lead to a decline in the value of a fund holding such securities. For example, if interest rates 
rise due to reasons other than inflation, a fund&#x2019;s investment in these securities may not be protected 
to the extent that the increase is not reflected in the securities&#x2019; inflation measures. In addition, 
positive adjustments to principal generally will result in taxable income to a fund at the time of such 
adjustments (which generally would be distributed by the fund as part of its taxable dividends), even 
though the principal amount is not paid until maturity. The current market value of inflation-protected 
securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050940Summary117Member"
      id="ixv-138711">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities 
may react differently from other fixed income securities to changes in interest rates. Because interest 
rates on inflation-protected securities are adjusted for inflation, the values of these securities are 
not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050940Summary117Member"
      id="ixv-138716">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_IncomeRisk2_S000050940Summary117Member"
      id="ixv-138724">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_CallRisk2_S000050940Summary117Member"
      id="ixv-138729">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_DerivativesRisk2_S000050940Summary117Member"
      id="ixv-138734">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_LiquidityRisk2_S000050940Summary117Member"
      id="ixv-138738">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_SecuritiesLendingRisk2_S000050940Summary117Member"
      id="ixv-138743">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_OperationalRisk2_S000050940Summary117Member"
      id="ixv-138747">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_CyberSecurityRisk2_S000050940Summary117Member"
      id="ixv-138752">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278534"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-138765">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of additional indexes with similar investment universes of the Portfolio, or certain 
portions of the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278535">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278536"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278537">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278538">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278539">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278540">2040 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278541">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278542">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278543"
      unitRef="pure">0.1609</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278544">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278545"
      unitRef="pure">-0.1831</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278546">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278547">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278548">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278549"
      unitRef="pure">0.1448</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278550"
      unitRef="pure">0.0768</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278551"
      unitRef="pure">0.0923</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278552">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278553"
      unitRef="pure">0.1272</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278554"
      unitRef="pure">0.0646</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278555"
      unitRef="pure">0.0827</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      id="ixv-278556">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278557"
      unitRef="pure">0.0915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278558"
      unitRef="pure">0.0567</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160540Member_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278559"
      unitRef="pure">0.0725</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3432_S000050940Member_S000050940Summary117Member"
      id="ixv-278560">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050940Member_S000050940Summary117Member"
      id="ixv-278561">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3433_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278562"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3433_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278563"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3433_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278564"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3434_S000050940Member_S000050940Summary117Member"
      id="_10120_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3435_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278566"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3435_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278567"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3435_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278568"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3436_S000050940Member_S000050940Summary117Member"
      id="ixv-278569">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3437_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278570"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3437_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278571"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3437_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278572"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3438_S000050940Member_S000050940Summary117Member"
      id="ixv-278573">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3439_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278574"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3439_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278575"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3439_S000050940Member_S000050940Summary117Member"
      decimals="INF"
      id="ixv-278576"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278577"> Dimensional 2045 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278578"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139198">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2045 Target Date Retirement Income Fund (the &#x201c;2045 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278579"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139205">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278580">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278581">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278582"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278583"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278584"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278585"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278586">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139269">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278587"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278588"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278589"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278590"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278591"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278592"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278593"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278594"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278595"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278596"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278597">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139296">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278598"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278599"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139306">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2045 Target Date Portfolio allocates its assets 
to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2045 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2060 in 
the case of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At 
the final landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 
25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its 
assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects 
the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement as an investor gets closer to the target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2045 Target 
Date Portfolio has a target allocation of 60% to 85% to equity Underlying Funds and a target allocation 
of approximately 15% to 40% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2045 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_PrincipalRisks2_S000050929Summary118Member"
      id="ixv-139317">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x35x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_RiskLoseMoneyMember_S000050929Summary118Member"
      id="ixv-278600">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_RiskNotInsuredMember_S000050929Summary118Member"
      id="ixv-278601">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_FundofFundsRisk2_S000050929Summary118Member"
      id="ixv-139323">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_EquityMarketRisk2_S000050929Summary118Member"
      id="ixv-139333">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_MarketRisk2_S000050929Summary118Member"
      id="ixv-139338">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_ForeignSecuritiesandCurrenciesRisk2_S000050929Summary118Member"
      id="ixv-139343">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_ForeignGovernmentDebtRisk2_S000050929Summary118Member"
      id="ixv-139349">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_SmallandMid-CapCompanyRisk2_S000050929Summary118Member"
      id="ixv-139354">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_ProfitabilityInvestmentRisk2_S000050929Summary118Member"
      id="ixv-139359">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_ValueInvestmentRisk2_S000050929Summary118Member"
      id="ixv-139363">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_EmergingMarketsRisk2_S000050929Summary118Member"
      id="ixv-139368">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_InterestRateRisk2_S000050929Summary118Member"
      id="ixv-139380">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_CreditRisk2_S000050929Summary118Member"
      id="ixv-139385">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_RisksofInvestingforInflationProtection2_S000050929Summary118Member"
      id="ixv-139390">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050929Summary118Member"
      id="ixv-139395">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050929Summary118Member"
      id="ixv-139400">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_IncomeRisk2_S000050929Summary118Member"
      id="ixv-139409">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_CallRisk2_S000050929Summary118Member"
      id="ixv-139414">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_DerivativesRisk2_S000050929Summary118Member"
      id="ixv-139419">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, such as swaps, futures contracts, and options thereon, 
and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. 
Derivatives can be used for hedging (attempting to reduce risk by offsetting one investment position 
with another) or non-hedging purposes. Hedging with derivatives may increase expenses, and there is no 
guarantee that a hedging strategy will work. While hedging can reduce or eliminate losses, it can also 
reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated 
by a fund or if the cost of the derivative outweighs the benefit of the hedge. In regard to currency 
hedging, it is generally not possible to precisely match the foreign currency exposure of such foreign 
currency forward contracts to the value of the securities involved due to fluctuations in the market 
values of such securities and cash flows into and out of a fund between the date a foreign currency forward 
contract is entered into and the date it expires. The use of derivatives for non-hedging purposes may 
be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund 
will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number 
of risks including counterparty, settlement, liquidity, interest rate, market, credit and management 
risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not 
correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal 
amount invested. Additional risks are associated with the use of swaps including counterparty and credit 
risk (the risk that the other party to a swap agreement will not fulfill its contractual obligations, 
whether because of bankruptcy or other default) and liquidity risk (the possible lack of a secondary 
market for the swap agreement). Credit risk increases when a fund is the seller of swaps and counterparty 
risk increases when the fund is a buyer of swaps. In addition, where a fund is the seller of swaps, it 
may be required to liquidate portfolio securities at inopportune times in order to meet payment obligations. 
Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_LiquidityRisk2_S000050929Summary118Member"
      id="ixv-139423">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when particular portfolio investments 
are difficult to purchase or sell. To the extent that a fund holds illiquid investments, the fund&#x2019;s 
performance may be reduced due to an inability to sell the investments at opportune prices or times. 
Liquid portfolio investments may become illiquid or less liquid after purchase by a fund due to low trading 
volume, adverse investor perceptions, credit tightening and/or other market developments. Liquidity risk 
includes the risk that a fund will experience significant net redemptions at a time when it cannot find 
willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss 
or at increased costs. Liquidity risk can be more pronounced in periods of market turmoil or in situations 
where ownership of shares of a fund are concentrated in one or a few investors. Investments that are 
illiquid or that trade in lower volumes may be more difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_SecuritiesLendingRisk2_S000050929Summary118Member"
      id="ixv-139428">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities lending involves 
the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, 
a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also 
lose money if it does not recover the securities and/or the value of the collateral falls, including 
the value of investments made with cash collateral. Securities lending also may have certain adverse 
tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_OperationalRisk2_S000050929Summary118Member"
      id="ixv-139432">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, system changes, faults 
in communication, and failures in systems, technology, or processes, and the use of artificial intelligence 
and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances are outside a fund&#x2019;s 
or its advisor&#x2019;s control, including instances at third parties. A fund and its advisor seek to 
reduce these operational risks through controls and procedures. However, measures that seek to reduce 
these operational risks through controls and procedures may not address every possible risk and may be 
inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_CyberSecurityRisk2_S000050929Summary118Member"
      id="ixv-139437">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; use of internet, technology 
and information systems may expose the fund to potential risks linked to cyber security breaches of those 
technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized 
party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or 
its service providers to suffer data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;

</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278602"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-139451">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278603">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278604"> The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278605">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278606">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278607">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278608">2045 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278609">Highest 
Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278610">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278611"
      unitRef="pure">0.1861</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278612">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278613"
      unitRef="pure">-0.2168</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278614">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278615">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278616">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278617"
      unitRef="pure">0.1717</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278618"
      unitRef="pure">0.1056</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278619"
      unitRef="pure">0.1112</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278620">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278621"
      unitRef="pure">0.1616</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278622"
      unitRef="pure">0.0963</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278623"
      unitRef="pure">0.1033</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      id="ixv-278624">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278625"
      unitRef="pure">0.1052</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278626"
      unitRef="pure">0.0813</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160529Member_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278627"
      unitRef="pure">0.0896</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3441_S000050929Member_S000050929Summary118Member"
      id="ixv-278628">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050929Member_S000050929Summary118Member"
      id="ixv-278629">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3442_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278630"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3442_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278631"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3442_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278632"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3443_S000050929Member_S000050929Summary118Member"
      id="_10233_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3444_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278634"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3444_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278635"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3444_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278636"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3445_S000050929Member_S000050929Summary118Member"
      id="ixv-278637">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3446_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278638"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3446_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278639"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3446_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278640"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3447_S000050929Member_S000050929Summary118Member"
      id="ixv-278641">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3448_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278642"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3448_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278643"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3448_S000050929Member_S000050929Summary118Member"
      decimals="INF"
      id="ixv-278644"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278645"> Dimensional 2050 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278646"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-139881">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2050 Target Date Retirement Income Fund (the &#x201c;2050 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278647"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-139888">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278648">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278649">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278650"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278651"
      unitRef="pure">0.0002</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278652"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278653"
      unitRef="pure">0.0018</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278654">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-139952">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278655"
      unitRef="usd">18</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278656"
      unitRef="usd">18</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278657"
      unitRef="usd">58</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278658"
      unitRef="usd">58</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278659"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278660"
      unitRef="usd">101</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278661"
      unitRef="usd">101</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278662"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278663"
      unitRef="usd">230</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278664"
      unitRef="usd">230</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278665">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-139979">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278666"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278667"> Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-139989">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets 
among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has 
the ability to invest directly in securities and derivatives. To achieve its investment objective, the 
2050 Target Date Portfolio allocates its assets to other &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;mutual funds managed by the Advisor (i.e., the Underlying Funds) according to 
an asset allocation strategy designed for investors planning to retire in or within a few years of 2050 
(the target date) and are planning to withdraw the value of the investment in the Portfolio over many 
years after the target date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected 
to change based on an asset allocation strategy that generally becomes more conservative (reducing its 
allocation to equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) 
until reaching the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2065 in 
the case of the Portfolio), at which time the Portfolio reaches its final static asset allocation. At 
the final landing point, the Portfolio is expected to reach a final static asset allocation of 15% to 
25% of its assets allocated to domestic and international equity Underlying Funds and 75% to 85% of its 
assets allocated to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects 
the need for reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio 
may be able to support in retirement as an investor gets closer to the target date. When the Portfolio 
reaches the landing point, it is expected that the Advisor will recommend that the Board of Directors 
of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income Fund, another 
fund managed by the Advisor, which is expected to have approximately the same asset allocation as the 
Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2050 Target 
Date Portfolio has a target allocation of 75% to 97% to equity Underlying Funds and a target allocation 
of approximately 3% to 25% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2050 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_PrincipalRisks2_S000050930Summary119Member"
      id="ixv-140000">&lt;p style="-sec-ix-redline:true;font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x45x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency. The following is a description of principal 
risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_RiskLoseMoneyMember_S000050930Summary119Member"
      id="ixv-278668">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_RiskNotInsuredMember_S000050930Summary119Member"
      id="ixv-278669">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_FundofFundsRisk2_S000050930Summary119Member"
      id="ixv-140006">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected 
by the investment performance of the underlying funds in which the fund of funds invests. The ability 
of a fund of funds to achieve its investment objective depends on the ability of the underlying funds 
to meet their investment objectives and on the Advisor&#x2019;s decisions &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;regarding the allocation of a fund of funds&#x2019; assets among the underlying 
funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms other 
funds or asset classes.  There can be no assurance that the investment objective of a fund of funds or 
any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_EquityMarketRisk2_S000050930Summary119Member"
      id="ixv-140016">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_MarketRisk2_S000050930Summary119Member"
      id="ixv-140021">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_ForeignSecuritiesandCurrenciesRisk2_S000050930Summary119Member"
      id="ixv-140026">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_ForeignGovernmentDebtRisk2_S000050930Summary119Member"
      id="ixv-140032">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_SmallandMid-CapCompanyRisk2_S000050930Summary119Member"
      id="ixv-140037">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_ProfitabilityInvestmentRisk2_S000050930Summary119Member"
      id="ixv-140042">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_ValueInvestmentRisk2_S000050930Summary119Member"
      id="ixv-140046">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_EmergingMarketsRisk2_S000050930Summary119Member"
      id="ixv-140051">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_InterestRateRisk2_S000050930Summary119Member"
      id="ixv-140063">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed 
income securities are subject to interest rate risk because the prices of fixed income securities tend 
to move in the opposite direction of interest rates. When interest rates rise, fixed income security 
prices fall. During periods of very low or negative interest rates, a fund may be subject to a greater 
risk of rising interest rates. When interest rates fall, fixed income security prices rise. In general, 
fixed income securities with longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_CreditRisk2_S000050930Summary119Member"
      id="ixv-140068">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_RisksofInvestingforInflationProtection2_S000050930Summary119Member"
      id="ixv-140073">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050930Summary119Member"
      id="ixv-140078">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050930Summary119Member"
      id="ixv-140083">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by selling its investments. The sale of such investments 
could result in capital gains to a fund and additional capital gain distributions to shareholders. In 
addition, adjustments during the taxable year for deflation to an inflation-indexed bond held by a fund 
may cause amounts previously distributed to shareholders in the taxable year as income to be characterized 
as a return of capital, which could increase or decrease a fund&#x2019;s ordinary income distributions 
to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified as a return 
of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_IncomeRisk2_S000050930Summary119Member"
      id="ixv-140091">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_CallRisk2_S000050930Summary119Member"
      id="ixv-140096">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_DerivativesRisk2_S000050930Summary119Member"
      id="ixv-140101">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_LiquidityRisk2_S000050930Summary119Member"
      id="ixv-140105">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_SecuritiesLendingRisk2_S000050930Summary119Member"
      id="ixv-140110">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_OperationalRisk2_S000050930Summary119Member"
      id="ixv-140114">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_CyberSecurityRisk2_S000050930Summary119Member"
      id="ixv-140119">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278670"> 
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-140132">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year. The table illustrates how annualized returns for certain periods, both 
before and after taxes, compare with those of a broad measure of market performance. The table also includes 
the performance of additional indexes with similar investment universes of the Portfolio, or certain 
portions of the Portfolio. The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results. Updated performance information for the Portfolio can be obtained by visiting 
https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on 
an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278671">The bar chart and table 
immediately following illustrate the variability of the Portfolio&#x2019;s returns and are meant to provide 
some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio&#x2019;s 
performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278672"> The Portfolio&#x2019;s past performance (before and after taxes) is not an 
indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278673">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278674">The after-tax returns presented in the 
table for the Portfolio are calculated using the historical highest individual federal marginal income 
tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278675">In addition, the after-tax 
returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, 
such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278676">2050 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278677">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278678">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278679"
      unitRef="pure">0.1923</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278680">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278681"
      unitRef="pure">-0.2239</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278682">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278683">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278684">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278685"
      unitRef="pure">0.1964</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278686"
      unitRef="pure">0.1173</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278687"
      unitRef="pure">0.1181</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278688">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278689"
      unitRef="pure">0.1884</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278690"
      unitRef="pure">0.1090</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278691"
      unitRef="pure">0.1103</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      id="ixv-278692">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278693"
      unitRef="pure">0.1203</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278694"
      unitRef="pure">0.0915</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160530Member_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278695"
      unitRef="pure">0.0957</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3450_S000050930Member_S000050930Summary119Member"
      id="ixv-278696">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050930Member_S000050930Summary119Member"
      id="ixv-278697">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3451_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278698"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3451_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278699"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3451_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278700"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3452_S000050930Member_S000050930Summary119Member"
      id="_10346_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3453_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278702"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3453_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278703"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3453_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278704"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3454_S000050930Member_S000050930Summary119Member"
      id="ixv-278705">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3455_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278706"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3455_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278707"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3455_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278708"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3456_S000050930Member_S000050930Summary119Member"
      id="ixv-278709">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3457_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278710"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3457_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278711"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3457_S000050930Member_S000050930Summary119Member"
      decimals="INF"
      id="ixv-278712"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278713"> Dimensional 2055 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278714"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140568">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2055 Target Date Retirement Income Fund (the &#x201c;2055 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278715"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140575">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278716">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278717">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278718"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278719"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278720"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="_10372_"
      unitRef="pure">-0.0001</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278722"
      unitRef="pure">0.0021</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278723">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140658">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278724"
      unitRef="usd">22</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278725"
      unitRef="usd">22</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278726"
      unitRef="usd">68</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278727"
      unitRef="usd">68</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278728"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278729"
      unitRef="usd">118</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278730"
      unitRef="usd">118</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278731"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278732"
      unitRef="usd">268</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278733"
      unitRef="usd">268</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278734">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140685">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;11%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278735"
      unitRef="pure">0.11</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278736"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140698">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets 
among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has 
the ability to invest directly in securities and derivatives. To achieve its investment objective, the 
2055 Target Date Portfolio allocates its assets to other mutual funds managed by the Advisor (i.e., the 
Underlying Funds) according to an asset allocation strategy designed for investors planning to retire 
in or within a few years of 2055 (the target date) and are planning to withdraw the value of the investment 
in the Portfolio over many years after the target date. Over time, the Portfolio&#x2019;s allocation to 
the Underlying Funds is expected to change based on an asset allocation strategy that generally becomes 
more conservative (reducing its allocation to equity Underlying Funds and increasing its allocation to 
fixed income Underlying Funds) until reaching the &#x201c;landing point,&#x201d; which is 15 years after 
the target date (i.e., 2070 in the case of the Portfolio), at which time the Portfolio reaches its final 
static asset allocation. At the final landing point, the Portfolio is expected to reach a final static 
asset allocation of 15% to 25% of its assets allocated to domestic and international equity Underlying 
Funds and 75% to 85% of its assets allocated to fixed income Underlying Funds. The asset allocation strategy 
for the Portfolio reflects the need for reduced equity risk and lower volatility of the inflation-adjusted 
income the Portfolio may be able to support in retirement as an investor gets closer to the target date. 
When the Portfolio reaches the landing point, it is expected that the Advisor will recommend that the 
Board of Directors of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income 
Fund, another fund managed by the Advisor, which is expected to have approximately the same asset allocation 
as the Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2055 Target 
Date Portfolio has a target allocation of 75% to 97% to equity Underlying Funds and a target allocation 
of approximately 3% to 25% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2055 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_PrincipalRisks2_S000050931Summary120Member"
      id="ixv-140704">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x55x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal 
Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_RiskLoseMoneyMember_S000050931Summary120Member"
      id="ixv-278737">Because the value of your investment in the Portfolio will fluctuate, there is 
the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_RiskNotInsuredMember_S000050931Summary120Member"
      id="ixv-278738">An investment in the Portfolio is not a deposit of a bank and is not 
insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_FundofFundsRisk2_S000050931Summary120Member"
      id="ixv-140715">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund 
of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_EquityMarketRisk2_S000050931Summary120Member"
      id="ixv-140720">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_MarketRisk2_S000050931Summary120Member"
      id="ixv-140725">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_ForeignSecuritiesandCurrenciesRisk2_S000050931Summary120Member"
      id="ixv-140730">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_ForeignGovernmentDebtRisk2_S000050931Summary120Member"
      id="ixv-140736">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_SmallandMid-CapCompanyRisk2_S000050931Summary120Member"
      id="ixv-140741">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_ProfitabilityInvestmentRisk2_S000050931Summary120Member"
      id="ixv-140746">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_ValueInvestmentRisk2_S000050931Summary120Member"
      id="ixv-140750">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_EmergingMarketsRisk2_S000050931Summary120Member"
      id="ixv-140760">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_InterestRateRisk2_S000050931Summary120Member"
      id="ixv-140767">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_CreditRisk2_S000050931Summary120Member"
      id="ixv-140772">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_RisksofInvestingforInflationProtection2_S000050931Summary120Member"
      id="ixv-140777">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050931Summary120Member"
      id="ixv-140782">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050931Summary120Member"
      id="ixv-140787">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;selling its investments. The sale of such investments could result in capital 
gains to a fund and additional capital gain distributions to shareholders. In addition, adjustments during 
the taxable year for deflation to an inflation-indexed bond held by a fund may cause amounts previously 
distributed to shareholders in the taxable year as income to be characterized as a return of capital, 
which could increase or decrease a fund&#x2019;s ordinary income distributions to shareholders, and may 
cause some of a fund&#x2019;s distributed income to be classified as a return of capital.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_IncomeRisk2_S000050931Summary120Member"
      id="ixv-140797">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_CallRisk2_S000050931Summary120Member"
      id="ixv-140802">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_DerivativesRisk2_S000050931Summary120Member"
      id="ixv-140807">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_LiquidityRisk2_S000050931Summary120Member"
      id="ixv-140811">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_SecuritiesLendingRisk2_S000050931Summary120Member"
      id="ixv-140816">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_OperationalRisk2_S000050931Summary120Member"
      id="ixv-140820">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_CyberSecurityRisk2_S000050931Summary120Member"
      id="ixv-140828">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
fund and its service providers&#x2019; use of internet, technology and information systems may expose 
the fund to potential risks linked to cyber security breaches of those technological or information systems. 
Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary 
information, customer data, or fund assets, or cause the fund and/or its service providers to suffer 
data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278740"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-140838">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278741">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278742"> The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278743">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278744">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278745">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278746">2055 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278747">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278748">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278749"
      unitRef="pure">0.1939</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278750">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278751"
      unitRef="pure">-0.2231</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278752">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278753">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278754">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278755"
      unitRef="pure">0.2021</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278756"
      unitRef="pure">0.1184</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278757"
      unitRef="pure">0.1187</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278758">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278759"
      unitRef="pure">0.1959</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278760"
      unitRef="pure">0.1109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278761"
      unitRef="pure">0.1117</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      id="ixv-278762">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278763"
      unitRef="pure">0.1229</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278764"
      unitRef="pure">0.0926</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160531Member_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278765"
      unitRef="pure">0.0965</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3459_S000050931Member_S000050931Summary120Member"
      id="ixv-278766">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050931Member_S000050931Summary120Member"
      id="ixv-278767">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3460_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278768"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3460_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278769"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3460_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278770"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3461_S000050931Member_S000050931Summary120Member"
      id="_10460_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3462_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278772"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3462_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278773"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3462_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278774"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3463_S000050931Member_S000050931Summary120Member"
      id="ixv-278775">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3464_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278776"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3464_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278777"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3464_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278778"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3465_S000050931Member_S000050931Summary120Member"
      id="ixv-278779">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3466_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278780"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3466_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278781"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3466_S000050931Member_S000050931Summary120Member"
      decimals="INF"
      id="ixv-278782"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278783"> Dimensional 2060 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278784"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141271">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2060 Target Date Retirement Income Fund (the &#x201c;2060 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278785"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141278">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278786">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278787">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278788"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278789"
      unitRef="pure">0.0004</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278790"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="_10486_"
      unitRef="pure">-0.0002</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278792"
      unitRef="pure">0.0022</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278793">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141361">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. Although your actual costs may be higher or lower, based on these 
assumptions your costs whether you redeem or hold your shares would be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278794"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278795"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278796"
      unitRef="usd">71</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278797"
      unitRef="usd">71</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278798"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278799"
      unitRef="usd">124</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278800"
      unitRef="usd">124</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278801"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278802"
      unitRef="usd">280</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278803"
      unitRef="usd">280</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278804">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141388">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund 
generally pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns 
over&#x201d; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may 
result in higher taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction 
costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's 
portfolio turnover rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;12%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;
</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278805"
      unitRef="pure">0.12</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278806"> 
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141401">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
Portfolio is a &#x201c;fund of funds&#x201d;, which means that the Portfolio generally allocates its assets 
among other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has 
the ability to invest directly in securities and derivatives. To achieve its investment objective, the 
2060 Target Date Portfolio allocates its assets to other mutual funds managed by the Advisor (i.e., the 
Underlying Funds) according to an asset allocation strategy designed for investors planning to retire 
in or within a few years of 2060 (the target date) and are planning to withdraw the value of the investment 
in the Portfolio over many years after the target date. Over time, the Portfolio&#x2019;s allocation to 
the Underlying Funds is expected to change based on an asset allocation strategy that generally becomes 
more conservative (reducing its allocation to equity Underlying Funds and increasing its allocation to 
fixed income Underlying Funds) until reaching the &#x201c;landing point,&#x201d; which is 15 years after 
the target date (i.e., 2075 in the case of the Portfolio), at which time the Portfolio reaches its final 
static asset allocation. At the final landing point, the Portfolio is expected to reach a final static 
asset allocation of 15% to 25% of its assets allocated to domestic and international equity Underlying 
Funds and 75% to 85% of its assets allocated to fixed income Underlying Funds. The asset allocation strategy 
for the Portfolio reflects the need for reduced equity risk and lower volatility of the inflation-adjusted 
income the Portfolio may be able to support in retirement as an investor gets closer to the target date. 
When the Portfolio reaches the landing point, it is expected that the Advisor will recommend that the 
Board of Directors of the Portfolio approve combining the Portfolio with the Dimensional Retirement Income 
Fund, another fund managed by the Advisor, which is expected to have approximately the same asset allocation 
as the Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As of February 28, 2026, the 2060 Target 
Date Portfolio has a target allocation of 75% to 97% to equity Underlying Funds and a target allocation 
of approximately 3% to 25% to fixed income Underlying Funds, which may include exposure through those 
fixed income Underlying Funds to long-term and intermediate-term U.S. Treasury Inflation-Protected Securities 
(&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio may invest in: (1) domestic equity Underlying 
Funds that purchase a broad and diverse portfolio of securities of U.S. operating companies; (2) international 
equity Underlying Funds that purchase a broad and diverse portfolio of securities of companies in developed 
and emerging markets; and (3) fixed income Underlying Funds that may purchase U.S. and foreign debt securities 
such as obligations issued or guaranteed by the U.S. and foreign governments, their agencies and instrumentalities, 
long-, intermediate- and short-term TIPS, bank obligations, commercial paper, repurchase agreements, 
money market funds, obligations of other domestic and foreign issuers, securities of domestic and foreign 
issuers denominated in U.S. dollars but not trading in the United States, obligations of supranational 
organizations, and inflation-protected securities. The fixed income Underlying Funds primarily invest 
in securities that are considered investment grade at the time of purchase and which have a range of 
maturities, including ultra-short, short, intermediate, and long-term. Certain equity Underlying Funds 
purchase a broad and diverse group of securities of companies with a greater emphasis on smaller capitalization, 
lower relative price, and higher profitability companies as compared to their representation in the universe 
of securities such Underlying Funds invest in. A summary of the investment strategies and policies of 
the Underlying Funds in which the Portfolio invests as of the date of this Prospectus is described in 
the Portfolio&#x2019;s Prospectus in the section entitled &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION 
ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 2060 Target Date Portfolio 
and each Underlying Fund may purchase or sell futures contracts and options on futures contracts, to 
adjust market exposure based on actual or expected cash inflows to or outflows from the Portfolio or 
Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange transactions, including 
foreign currency forward contracts, in connection with the settlement of foreign securities, to hedge 
foreign currency risks, to hedge against fluctuations in currency exchange rates or to transfer balances 
from one currency to another. Certain Underlying Funds also may enter into swaps to hedge against inflation 
risk associated with certain securities or to buy or sell credit protection to hedge its credit exposure; 
gain market or issuer exposure without owning the underlying securities; or increase the Underlying Fund&#x2019;s 
total return. Certain Underlying Funds also may purchase or sell futures contracts and options on futures 
contracts, to hedge their interest rate or currency exposure or for non-hedging purposes, such as a substitute 
for direct investment. Also, the Portfolio and the Underlying Funds may lend their portfolio securities 
to generate additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_PrincipalRisks2_S000050932Summary121Member"
      id="ixv-141407">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x65x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. 
An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit &lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Insurance Corporation or any other government agency. The following is a description 
of principal risks of investing in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_RiskLoseMoneyMember_S000050932Summary121Member"
      id="ixv-278807">Because 
the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_RiskNotInsuredMember_S000050932Summary121Member"
      id="ixv-278808">An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal 
Deposit Insurance Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_FundofFundsRisk2_S000050932Summary121Member"
      id="ixv-141418">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund 
of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance 
of a fund of funds is affected by the investment performance of the underlying funds in which the fund 
of funds invests. The ability of a fund of funds to achieve its investment objective depends on the ability 
of the underlying funds to meet their investment objectives and on the Advisor&#x2019;s decisions regarding 
the allocation of a fund of funds&#x2019; assets among the underlying funds. A fund of funds may allocate 
assets to an underlying fund or asset class that underperforms other funds or asset classes.  There can 
be no assurance that the investment objective of a fund of funds or any underlying fund will be achieved. 
Through its investments in the underlying funds, a fund of funds is subject to the risks of the underlying 
funds&#x2019; investments. When a fund of funds invests in underlying funds, investors are exposed to 
a proportionate share of the expenses of those underlying funds in addition to the expenses of a fund 
of funds. Certain risks of the Underlying Funds&#x2019; investments that are principal risks of investing 
in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_EquityMarketRisk2_S000050932Summary121Member"
      id="ixv-141423">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity 
Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_MarketRisk2_S000050932Summary121Member"
      id="ixv-141428">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_ForeignSecuritiesandCurrenciesRisk2_S000050932Summary121Member"
      id="ixv-141433">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_ForeignGovernmentDebtRisk2_S000050932Summary121Member"
      id="ixv-141439">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_SmallandMid-CapCompanyRisk2_S000050932Summary121Member"
      id="ixv-141444">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_ProfitabilityInvestmentRisk2_S000050932Summary121Member"
      id="ixv-141449">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability 
stocks may perform differently from the market as a whole and an investment strategy purchasing these 
securities may cause a fund to at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_ValueInvestmentRisk2_S000050932Summary121Member"
      id="ixv-141453">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_EmergingMarketsRisk2_S000050932Summary121Member"
      id="ixv-141463">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_InterestRateRisk2_S000050932Summary121Member"
      id="ixv-141470">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_CreditRisk2_S000050932Summary121Member"
      id="ixv-141475">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_RisksofInvestingforInflationProtection2_S000050932Summary121Member"
      id="ixv-141480">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000050932Summary121Member"
      id="ixv-141485">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which represent 
nominal (stated) interest rates reduced by the expected impact of inflation. Generally, the value of 
an inflation-protected security will fall when real interest rates rise and will rise when real interest 
rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_Inflation-ProtectedSecuritiesTaxRisk2_S000050932Summary121Member"
      id="ixv-141490">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities 
Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal amount of an inflation-protected 
security may be included for tax purposes in a fund&#x2019;s gross income, even though no cash attributable 
to such gross income has been received by a fund. In such event, a fund may be required to make annual 
gross distributions to shareholders that exceed the cash it has otherwise received. In order to pay such 
distributions, a fund may be required to raise cash by &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;selling its investments. The sale of such investments could result in capital 
gains to a fund and additional capital gain distributions to shareholders. In addition, adjustments during 
the taxable year for deflation to an inflation-indexed bond held by a fund may cause amounts previously 
distributed to shareholders in the taxable year as income to be characterized as a return of capital, 
which could increase or decrease a fund&#x2019;s ordinary income distributions to shareholders, and may 
cause some of a fund&#x2019;s distributed income to be classified as a return of capital.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_IncomeRisk2_S000050932Summary121Member"
      id="ixv-141500">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income risk is the risk 
that falling interest rates will cause a fund&#x2019;s income to decline because, among other reasons, 
the proceeds from maturing short-term securities in its portfolio may be reinvested in lower-yielding 
securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_CallRisk2_S000050932Summary121Member"
      id="ixv-141505">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_DerivativesRisk2_S000050932Summary121Member"
      id="ixv-141510">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_LiquidityRisk2_S000050932Summary121Member"
      id="ixv-141514">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_SecuritiesLendingRisk2_S000050932Summary121Member"
      id="ixv-141519">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_OperationalRisk2_S000050932Summary121Member"
      id="ixv-141523">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_CyberSecurityRisk2_S000050932Summary121Member"
      id="ixv-141531">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A 
fund and its service providers&#x2019; use of internet, technology and information systems may expose 
the fund to potential risks linked to cyber security breaches of those technological or information systems. 
Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary 
information, customer data, or fund assets, or cause the fund and/or its service providers to suffer 
data corruption or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278810"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-141541">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278811">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278812"> The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278813">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278814">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278815">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278816">2060 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278817">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278818">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278819"
      unitRef="pure">0.1933</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278820">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278821"
      unitRef="pure">-0.2236</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278822">2020-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278823">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278824">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278825"
      unitRef="pure">0.2028</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278826"
      unitRef="pure">0.1185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278827"
      unitRef="pure">0.1187</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278828">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278829"
      unitRef="pure">0.1966</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278830"
      unitRef="pure">0.1109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278831"
      unitRef="pure">0.1119</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      id="ixv-278832">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278833"
      unitRef="pure">0.1234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278834"
      unitRef="pure">0.0926</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000160532Member_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278835"
      unitRef="pure">0.0967</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3468_S000050932Member_S000050932Summary121Member"
      id="ixv-278836">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000050932Member_S000050932Summary121Member"
      id="ixv-278837">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3469_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278838"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3469_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278839"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_SPGlobalBMIIndexnetdividends3469_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278840"
      unitRef="pure">0.1128</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3470_S000050932Member_S000050932Summary121Member"
      id="_10574_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)1</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3471_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278842"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3471_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278843"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3471_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278844"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3472_S000050932Member_S000050932Summary121Member"
      id="ixv-278845">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3473_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278846"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3473_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278847"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergUSTIPSIndex3473_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278848"
      unitRef="pure">0.0309</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3474_S000050932Member_S000050932Summary121Member"
      id="ixv-278849">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3475_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278850"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3475_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278851"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20160101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3475_S000050932Member_S000050932Summary121Member"
      decimals="INF"
      id="ixv-278852"
      unitRef="pure">0.0239</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278853"> Dimensional 2065 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278854"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-141974">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2065 Target Date Retirement Income Fund (the &#x201c;2065 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278855"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-141981">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278856">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278857">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278858"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278859"
      unitRef="pure">0.0011</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278860"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278861"
      unitRef="pure">0.0027</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10600_"
      unitRef="pure">-0.0005</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278863"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278864">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-142069">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278865"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278866"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278867"
      unitRef="usd">82</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278868"
      unitRef="usd">82</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278869"
      unitRef="usd">147</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278870"
      unitRef="usd">147</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278871"
      unitRef="usd">147</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278872"
      unitRef="usd">338</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278873"
      unitRef="usd">338</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278874"
      unitRef="usd">338</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278875">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-142096">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction costs when 
buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Annual Fund Operating Expenses or in the Example, affect the 
Portfolio&#x2019;s performance. During the most recent fiscal year, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;21%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278876"
      unitRef="pure">0.21</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278877"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-142111">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2065 Target Date Portfolio allocates its assets 
to other mutual funds managed by the Advisor (i.e., the Underlying Funds) according to an asset allocation 
strategy designed for investors planning to retire in or within a few years of 2065 (the target date) 
and are planning to withdraw the value of the investment in the Portfolio over many years after the target 
date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected to change based 
on an asset allocation strategy that generally becomes more conservative (reducing its allocation to 
equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) until reaching 
the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2080 in the case of the 
Portfolio), at which time the Portfolio reaches its final static asset allocation. At the final landing 
point, the Portfolio is expected to reach a final static asset allocation of 15% to 25% of its assets 
allocated to domestic and international equity Underlying Funds and 75% to 85% of its assets allocated 
to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects the need for 
reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio may be able to 
support in retirement as an investor gets closer to the target date. When the Portfolio reaches the landing 
point, it is expected that the Advisor will recommend that the Board of Directors of the Portfolio approve 
combining the Portfolio with the Dimensional Retirement Income Fund, another fund managed by the Advisor, 
which is expected to have approximately the same asset allocation as the Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
of February 28, 2026, the 2065 Target Date Portfolio has a target allocation of 75% to 97% to equity 
Underlying Funds and a target allocation of approximately 3% to 25% to fixed income Underlying Funds, 
which may include exposure through those fixed income Underlying Funds to long-term and intermediate-term 
U.S. Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio 
may invest in: (1) domestic equity Underlying Funds that purchase a broad and diverse portfolio of securities 
of U.S. operating companies; (2) international equity Underlying Funds that purchase a broad and diverse 
portfolio of securities of companies in developed and emerging markets; and (3) fixed income Underlying 
Funds that may purchase U.S. and foreign debt securities such as obligations issued or guaranteed by 
the U.S. and foreign governments, their agencies and instrumentalities, long-, intermediate- and short-term 
TIPS, bank obligations, commercial paper, repurchase agreements, money market funds, obligations of other 
domestic and foreign issuers, securities of domestic and foreign issuers denominated in U.S. dollars 
but not trading in the United States, obligations of supranational organizations, and inflation-protected 
securities. The fixed income Underlying Funds primarily invest in securities that are considered investment 
grade at the time of purchase and which have a range of maturities, including ultra-short, short, intermediate, 
and long-term. Certain equity Underlying Funds purchase a broad and diverse group of securities of companies 
with a greater emphasis on smaller capitalization, lower relative price, and higher profitability companies 
as compared to their representation in the universe of securities such Underlying Funds invest in. A 
summary of the investment strategies and policies of the Underlying Funds in which the Portfolio invests 
as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus in the section entitled 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;&#x201c;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVES AND POLICIES.&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
2065 Target Date Portfolio and each Underlying Fund may purchase or sell futures contracts and options 
on futures contracts, to adjust market exposure based on actual or expected cash inflows to or outflows 
from the Portfolio or Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities, to hedge foreign currency risks, to hedge against fluctuations in currency exchange rates 
or to transfer balances from one currency to another. Certain Underlying Funds also may enter into swaps 
to hedge against inflation risk associated with certain securities or to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Underlying Fund&#x2019;s total return. Certain Underlying Funds also may purchase or sell 
futures contracts and options on futures contracts, to hedge their interest rate or currency exposure 
or for non-hedging purposes, such as a substitute for direct investment.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Also, 
the 2065 Target Date Portfolio and the Underlying Funds may lend their portfolio securities to generate 
additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_PrincipalRisks2_S000067428Summary122Member"
      id="ixv-142121">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x75x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_RiskLoseMoneyMember_S000067428Summary122Member"
      id="ixv-278878">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_RiskNotInsuredMember_S000067428Summary122Member"
      id="ixv-278879">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_FundofFundsRisk2_S000067428Summary122Member"
      id="ixv-142127">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_EquityMarketRisk2_S000067428Summary122Member"
      id="ixv-142132">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_MarketRisk2_S000067428Summary122Member"
      id="ixv-142137">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_ForeignSecuritiesandCurrenciesRisk2_S000067428Summary122Member"
      id="ixv-142142">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_ForeignGovernmentDebtRisk2_S000067428Summary122Member"
      id="ixv-142148">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_SmallandMid-CapCompanyRisk2_S000067428Summary122Member"
      id="ixv-142153">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of small and mid-cap companies are often less liquid 
than those of large companies and this could make it difficult to sell a small or mid-cap company security 
at a desired time or price. As a result, small and mid-cap company stocks may fluctuate relatively more 
in price. In general, small and mid-capitalization companies are also more vulnerable than larger companies 
to adverse business or economic developments and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_ProfitabilityInvestmentRisk2_S000067428Summary122Member"
      id="ixv-142161">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High 
relative profitability stocks may perform differently from the market as a whole and an investment strategy 
purchasing these securities may cause a fund to at times underperform equity funds that use other investment 
strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_ValueInvestmentRisk2_S000067428Summary122Member"
      id="ixv-142165">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform differently from the market as a whole and an investment 
strategy purchasing these securities may cause a fund to at times underperform equity funds that use 
other investment strategies. Value stocks can react differently to political, economic, and industry 
developments than the market as a whole and other types of stocks. Value stocks also may underperform 
the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_EmergingMarketsRisk2_S000067428Summary122Member"
      id="ixv-142170">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated with emerging market countries 
may be subject to higher and additional risks than securities of issuers in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries have a history of, and continue to experience 
serious, and potentially continuing, economic and political problems. Stock markets in many emerging 
market countries are relatively small, expensive to trade in and generally have higher risks than those 
in developed markets. Securities in emerging markets also may be less liquid than those in developed 
markets and foreigners are often limited in their ability to invest in, and withdraw assets from, these 
markets. Additional restrictions may be imposed under other conditions. Frontier market countries generally 
have smaller economies or less developed capital markets and, as a result, the risks of investing in 
emerging market countries are magnified in frontier market countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_InterestRateRisk2_S000067428Summary122Member"
      id="ixv-142177">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities 
are subject to interest rate risk because the prices of fixed income securities tend to move in the opposite 
direction of interest rates. When interest rates rise, fixed income security prices fall. During periods 
of very low or negative interest rates, a fund may be subject to a greater risk of rising interest rates. 
When interest rates fall, fixed income security prices rise. In general, fixed income securities with 
longer maturities are more sensitive to changes in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_CreditRisk2_S000067428Summary122Member"
      id="ixv-142182">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit risk is the risk 
that the issuer of a security may be unable to make interest payments and/or repay principal when due. 
A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial strength 
may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such securities. 
Government agency obligations have different levels of credit support and, therefore, different degrees 
of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that are supported 
by the full faith and credit of the United States, such as the Federal Housing Administration and Ginnie 
Mae, present little credit risk. Other securities issued by agencies and instrumentalities sponsored 
by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from the U.S. Treasury, 
subject to certain limitations, and securities issued by agencies and instrumentalities sponsored by 
the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie Mac and 
Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities issued 
or guaranteed by the credit of the agency may still involve a risk of non-payment of principal and/or 
interest. Credit risk is greater for fixed income securities with ratings below investment grade (e.g., 
BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_RisksofInvestingforInflationProtection2_S000067428Summary122Member"
      id="ixv-142187">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000067428Summary122Member"
      id="ixv-142192">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected 
securities may react differently from other fixed income securities to changes in interest rates. Because 
interest rates on inflation-protected securities are adjusted for inflation, the values of these securities 
are not materially affected by inflation expectations. Therefore, the value of inflation-protected securities 
are anticipated to change in response to changes in &#x201c;real&#x201d; interest rates, which &lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;represent nominal (stated) interest rates reduced by the expected impact of inflation. 
Generally, the value of an inflation-protected security will fall when real interest rates rise and will 
rise when real interest rates fall.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_Inflation-ProtectedSecuritiesTaxRisk2_S000067428Summary122Member"
      id="ixv-142202">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected 
Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary 
income distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified 
as a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_IncomeRisk2_S000067428Summary122Member"
      id="ixv-142207">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_CallRisk2_S000067428Summary122Member"
      id="ixv-142212">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_DerivativesRisk2_S000067428Summary122Member"
      id="ixv-142217">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_LiquidityRisk2_S000067428Summary122Member"
      id="ixv-142221">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_SecuritiesLendingRisk2_S000067428Summary122Member"
      id="ixv-142226">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
Securities lending involves the risk that the borrower may fail to return the securities in a timely 
manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned 
securities. A fund could also lose money if it does not recover the securities and/or the value of the 
collateral falls, including the value of investments made with cash collateral. Securities lending also 
may have certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_OperationalRisk2_S000067428Summary122Member"
      id="ixv-142234">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational 
risks include human error, changes in personnel, system changes, faults in communication, and failures 
in systems, technology, or processes, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;). 
Various operational events or circumstances are outside a fund&#x2019;s or its advisor&#x2019;s control, 
including instances at third parties. A fund and its advisor seek to reduce these operational risks through 
controls and procedures. However, measures that seek to reduce these operational risks through controls 
and procedures may not address every possible risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_CyberSecurityRisk2_S000067428Summary122Member"
      id="ixv-142239">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service 
providers&#x2019; use of internet, technology and information systems may expose the fund to potential 
risks linked to cyber security breaches of those technological or information systems. Cyber security 
breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, 
customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption 
or lose operational functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278880"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-142249">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year. The table illustrates how annualized 
returns for certain periods, both before and after taxes, compare with those of a broad measure of market 
performance. The table also includes the performance of additional indexes with similar investment universes 
of the Portfolio, or certain portions of the Portfolio. The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results. Updated performance information for the Portfolio 
can be obtained by visiting https://www.dimensional.com/us-en/funds.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns 
depend on an investor&#x2019;s tax situation and may differ from those shown in the table. In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278881">The 
bar chart and table immediately following illustrate the variability of the Portfolio&#x2019;s returns 
and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows 
the changes in the Portfolio&#x2019;s performance from year to year.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278882"> The Portfolio&#x2019;s past performance (before 
and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278883">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278884">The after-tax returns 
presented in the table for the Portfolio are calculated using the historical highest individual federal 
marginal income tax rates and do not reflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278885">In addition, 
the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged 
arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:BarChartHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278886">2065 
Target Date Portfolio&#x2005;Institutional Class Shares &#x2014;Total Returns</oef:BarChartHeading>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278887">Highest Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278888">Lowest Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278889"
      unitRef="pure">0.1041</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278890">2025-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278891"
      unitRef="pure">-0.1404</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278892">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:PerformanceTableHeading
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278893">Annualized Returns (%) </oef:PerformanceTableHeading>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278894">Return Before Taxes</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278895"
      unitRef="pure">0.2019</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278896"
      unitRef="pure">0.1185</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10670_"
      unitRef="pure">0.1207</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278898">Return 
After Taxes on Distributions</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278899"
      unitRef="pure">0.1950</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278900"
      unitRef="pure">0.1129</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_AfterTaxesOnDistributionsMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10674_"
      unitRef="pure">0.1144</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_AfterTaxesOnDistributionsAndSalesMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      id="ixv-278902">Return 
After Taxes on Distributions and Sale of Portfolio Shares</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278903"
      unitRef="pure">0.1224</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_AfterTaxesOnDistributionsAndSalesMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278904"
      unitRef="pure">0.0931</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_AfterTaxesOnDistributionsAndSalesMember_C000216791Member_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10678_"
      unitRef="pure">0.0954</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_SPGlobalBMIIndexnetdividends3477_S000067428Member_S000067428Summary122Member"
      id="ixv-278906">S&amp;P Global BMI Index (net dividends)</oef:AverageAnnualReturnLabel>
    <oef:IndexNoDeductionForFeesExpensesTaxes
      contextRef="Context_20251031_20251031_S000067428Member_S000067428Summary122Member"
      id="ixv-278907">(reflects 
no deduction for fees, expenses or taxes on sales)</oef:IndexNoDeductionForFeesExpensesTaxes>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_SPGlobalBMIIndexnetdividends3478_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278908"
      unitRef="pure">0.2196</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_SPGlobalBMIIndexnetdividends3478_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278909"
      unitRef="pure">0.1050</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_SPGlobalBMIIndexnetdividends3478_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10683_"
      unitRef="pure">0.1130</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3479_S000067428Member_S000067428Summary122Member"
      id="_10684_">ICE BofA 1-3 Year Global 
Government Index (hedged to USD)2</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3480_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278912"
      unitRef="pure">0.0484</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3480_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278913"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_ICEBofA1-3YearGlobalGovernmentIndexhedgedtoUSD3480_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10688_"
      unitRef="pure">0.0223</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergUSTIPSIndex3481_S000067428Member_S000067428Summary122Member"
      id="ixv-278915">Bloomberg U.S. TIPS Index</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergUSTIPSIndex3482_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278916"
      unitRef="pure">0.0701</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergUSTIPSIndex3482_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278917"
      unitRef="pure">0.0112</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_BloombergUSTIPSIndex3482_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10693_"
      unitRef="pure">0.0263</oef:AvgAnnlRtrPct>
    <oef:AverageAnnualReturnLabel
      contextRef="Context_20251031_20251031_BloombergGlobalAggregateBondIndexhedgedtoUSD3483_S000067428Member_S000067428Summary122Member"
      id="ixv-278919">Bloomberg Global Aggregate Bond Index 
(hedged to USD)</oef:AverageAnnualReturnLabel>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20250101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3484_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278920"
      unitRef="pure">0.0486</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20210101_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3484_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="ixv-278921"
      unitRef="pure">0.0034</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="Context_20200102_20251231_BloombergGlobalAggregateBondIndexhedgedtoUSD3484_S000067428Member_S000067428Summary122Member"
      decimals="INF"
      id="_10698_"
      unitRef="pure">0.0117</oef:AvgAnnlRtrPct>
    <oef:RiskReturnHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278923"> Dimensional 2070 Target Date 
Retirement Income Fund</oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278924"> Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142716">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
investment objective of the Dimensional 2070 Target Date Retirement Income Fund (the &#x201c;2070 Target 
Date Portfolio&#x201d; or the &#x201c;Portfolio&#x201d;) is to provide total return consistent with the 
Portfolio&#x2019;s current asset allocation. Total return is composed of income and capital appreciation.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278925"> 
Fees and Expenses of the Portfolio</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142723">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:bold; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;This 
table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You 
may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are 
not reflected in the table and Example below.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
    <oef:ShareholderFeesCaption
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278926">Shareholder 
Fees (fees paid directly from your investment)</oef:ShareholderFeesCaption>
    <oef:OperatingExpensesCaption
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278927">Annual 
Fund Operating Expenses (expenses that you pay each                     year 
as a percentage of the value of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278928"
      unitRef="pure">0</oef:ManagementFeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278929"
      unitRef="pure">0.8816</oef:OtherExpensesOverAssets>
    <oef:AcquiredFundFeesAndExpensesOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278930"
      unitRef="pure">0.0016</oef:AcquiredFundFeesAndExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278931"
      unitRef="pure">0.8832</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="_10710_"
      unitRef="pure">-0.8810</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278933"
      unitRef="pure">0.0022</oef:NetExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278934">EXAMPLE</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142811">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;This 
Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing 
in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. 
The Example also assumes that your investment has a 5% return each year and that the Portfolio&#x2019;s 
operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio 
that result from the contractual expense waiver in the first year only. Although your actual costs may 
be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would 
be: &lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278935"
      unitRef="usd">23</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278936"
      unitRef="usd">23</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278937"
      unitRef="usd">6322</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278938"
      unitRef="usd">6322</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278939"
      unitRef="usd">6497</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear05
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278940"
      unitRef="usd">6497</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278941"
      unitRef="usd">6497</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278942"
      unitRef="usd">6502</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear10
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278943"
      unitRef="usd">6502</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20251031_20251031_C000255934Member_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278944"
      unitRef="usd">6502</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278945">PORTFOLIO TURNOVER</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142838">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;A fund generally pays 
transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; 
its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher 
taxes when fund shares are held in a taxable account. The Portfolio does not pay transaction costs when 
buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the &#x201c;Underlying 
Funds&#x201d;); however, the Underlying Funds pay transaction costs when buying and selling securities 
for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the 
Example, affect the Portfolio&#x2019;s performance. During the period January &lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;2, 2025 to October 31, 2025, the Portfolio's portfolio turnover 
rate was &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; color:#000000; font-weight:normal; text-decoration:none;"&gt;1%&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; of the average value of 
its investment portfolio. &lt;/span&gt;&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      decimals="INF"
      id="ixv-278946"
      unitRef="pure">0.01</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278947"> Principal 
Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142853">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The Portfolio is a &#x201c;fund of funds&#x201d;, 
which means that the Portfolio generally allocates its assets among other funds managed by Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;), although it has the ability to invest directly in securities 
and derivatives. To achieve its investment objective, the 2070 Target Date Portfolio allocates its assets 
to other mutual funds managed by the Advisor (i.e., the Underlying Funds) according to an asset allocation 
strategy designed for investors planning to retire in or within a few years of 2070 (the target date) 
and are planning to withdraw the value of the investment in the Portfolio over many years after the target 
date. Over time, the Portfolio&#x2019;s allocation to the Underlying Funds is expected to change based 
on an asset allocation strategy that generally becomes more conservative (reducing its allocation to 
equity Underlying Funds and increasing its allocation to fixed income Underlying Funds) until reaching 
the &#x201c;landing point,&#x201d; which is 15 years after the target date (i.e., 2085 in the case of the 
Portfolio), at which time the Portfolio reaches its final static asset allocation. At the final landing 
point, the Portfolio is expected to reach a final static asset allocation of 15% to 25% of its assets 
allocated to domestic and international equity Underlying Funds and 75% to 85% of its assets allocated 
to fixed income Underlying Funds. The asset allocation strategy for the Portfolio reflects the need for 
reduced equity risk and lower volatility of the inflation-adjusted income the Portfolio may be able to 
support in retirement as an investor gets closer to the target date. When the Portfolio reaches the landing 
point, it is expected that the Advisor will recommend that the Board of Directors of the Portfolio approve 
combining the Portfolio with the Dimensional Retirement Income Fund, another fund managed by the Advisor, 
which is expected to have approximately the same asset allocation as the Portfolio at that time.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;As 
of February 28, 2026, the 2070 Target Date Portfolio has a target allocation of 75% to 97% to equity 
Underlying Funds and a target allocation of approximately 3% to 25% to fixed income Underlying Funds, 
which may include exposure through those fixed income Underlying Funds to long-term and intermediate-term 
U.S. Treasury Inflation-Protected Securities (&#x201c;TIPS&#x201d;). As of February 28, 2026, the Portfolio 
may invest in: (1) domestic equity Underlying Funds that purchase a broad and diverse portfolio of securities 
of U.S. operating companies; (2) international equity Underlying Funds that purchase a broad and diverse 
portfolio of securities of companies in developed and emerging markets; and (3) fixed income Underlying 
Funds that may purchase U.S. and foreign debt securities such as obligations issued or guaranteed by 
the U.S. and foreign governments, their agencies and instrumentalities, long-, intermediate- and short-term 
TIPS, bank obligations, commercial paper, repurchase agreements, money market funds, obligations of other 
domestic and foreign issuers, securities of domestic and foreign issuers denominated in U.S. dollars 
but not trading in the United States, obligations of supranational organizations, and inflation-protected 
securities. The fixed income Underlying Funds primarily invest in securities that are considered investment 
grade at the time of purchase and which have a range of maturities, including ultra-short, short, intermediate, 
and long-term. Certain equity Underlying Funds purchase a broad and diverse group of securities of companies 
with a greater emphasis on smaller capitalization, lower relative price, and higher profitability companies 
as compared to their representation in the universe of securities such Underlying Funds invest in. A 
summary of the investment strategies and policies of the Underlying Funds in which the Portfolio invests 
as of the date of this Prospectus is described in the Portfolio&#x2019;s Prospectus in the section entitled 
&#x201c;&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:bold; text-decoration:none;"&gt;ADDITIONAL INFORMATION ON INVESTMENT OBJECTIVE AND POLICIES.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#x201d;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;The 
2070 Target Date Portfolio and each Underlying Fund may purchase or sell futures contracts and options 
on futures contracts, to adjust market exposure based on actual or expected cash inflows to or outflows 
from the Portfolio or Underlying Fund. Certain Underlying Funds may enter into foreign currency exchange 
transactions, including foreign currency forward contracts, in connection with the settlement of foreign 
securities, to hedge foreign currency risks, to hedge against fluctuations in currency exchange rates 
or to transfer balances from one currency to another. Certain Underlying Funds also may enter into swaps 
to hedge against inflation risk associated with certain securities or to buy or sell credit protection 
to hedge its credit exposure; gain market or issuer exposure without owning the underlying securities; 
or increase the Underlying Fund&#x2019;s total return. Certain Underlying Funds also may purchase or sell 
futures contracts and options on futures contracts, to hedge their interest rate or currency exposure 
or for non-hedging purposes, such as a substitute for direct investment.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Also, 
the 2070 Target Date Portfolio and the Underlying Funds may lend their portfolio securities to generate 
additional income.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_PrincipalRisks2_S000089405Summary123Member"
      id="ixv-142864">&lt;p style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;a href="" id="x85x18"&gt;&lt;/a&gt;&lt;span style="font-size:12.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency. The following is a description of principal risks of investing 
in the Portfolio.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_RiskLoseMoneyMember_S000089405Summary123Member"
      id="ixv-278948">Because the value of your 
investment in the Portfolio will fluctuate, there is the risk that you will lose money.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_RiskNotInsuredMember_S000089405Summary123Member"
      id="ixv-278949">An investment 
in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance 
Corporation or any other government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_FundofFundsRisk2_S000089405Summary123Member"
      id="ixv-142870">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Fund of Funds Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The investment performance of a fund of funds is affected by the investment performance 
of the underlying funds in which the fund of funds invests. The ability of a fund of funds to achieve 
its investment objective depends on the ability of the underlying funds to meet their investment objectives 
and on the Advisor&#x2019;s decisions regarding the allocation of a fund of funds&#x2019; assets among 
the underlying funds. A fund of funds may allocate assets to an underlying fund or asset class that underperforms 
other funds or asset classes.  There can be no assurance that the investment objective of a fund of funds 
or any underlying fund will be achieved. Through its investments in the underlying funds, a fund of funds 
is subject to the risks of the underlying funds&#x2019; investments. When a fund of funds invests in underlying 
funds, investors are exposed to a proportionate share of the expenses of those underlying funds in addition 
to the expenses of a fund of funds. Certain risks of the Underlying Funds&#x2019; investments that are 
principal risks of investing in the Portfolio are described below.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_EquityMarketRisk2_S000089405Summary123Member"
      id="ixv-142875">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Equity Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock 
markets are volatile, with periods of rising prices and periods of falling prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_MarketRisk2_S000089405Summary123Member"
      id="ixv-142880">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Market Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Even a long-term investment 
approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions 
and events will cause the value of securities, and a fund that owns them, to rise or fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_ForeignSecuritiesandCurrenciesRisk2_S000089405Summary123Member"
      id="ixv-142885">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Securities and Currencies Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Foreign securities prices 
may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or 
(b) less regulated or liquid securities markets. Investors holding these securities may also be exposed 
to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. 
dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, 
changing its value against the U.S. dollar).&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Foreign issuers may not 
be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable 
and publicly available financial and other information about such issuers, as compared to U.S. issuers. 
A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends 
and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal 
remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect 
to domestic issuers in U.S. courts.&lt;/p&gt;&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; text-decoration:none;"&gt;Depositary receipts are generally subject 
to the same risks as the foreign securities that they evidence or into which they may be converted. In 
addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered 
depositary receipts, are under no obligation to distribute shareholder communications to the holders 
of such receipts, or to pass through to them any voting rights with respect to the deposited securities. 
Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily 
available public information about the issuer.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_ForeignGovernmentDebtRisk2_S000089405Summary123Member"
      id="ixv-142892">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Foreign Government 
Debt Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The risk that: (a) the governmental entity that controls the 
repayment of government debt may not be willing or able to repay the principal and/or to pay the interest 
when it becomes due, due to factors such as political considerations, the relative size of the governmental 
entity&#x2019;s debt position in relation to the economy, cash flow problems, insufficient foreign currency 
reserves, the failure to put in place economic reforms required by the International Monetary Fund or 
other multilateral agencies, and/or other national economic factors; (b) governments may default on their 
debt securities, which may require holders of such securities to participate in debt rescheduling; and 
(c) there is no legal or bankruptcy process by which defaulted government debt may be collected in whole 
or in part.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_SmallandMid-CapCompanyRisk2_S000089405Summary123Member"
      id="ixv-142900">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Small and Mid-Cap Company Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities 
of small and mid-cap companies are often less liquid than those of large companies and this could make 
it difficult to sell a small or mid-cap company security at a desired time or price. As a result, small 
and mid-cap company stocks may fluctuate relatively more in price. In general, small and mid-capitalization 
companies are also more vulnerable than larger companies to adverse business or economic developments 
and they may have more limited resources.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_ProfitabilityInvestmentRisk2_S000089405Summary123Member"
      id="ixv-142905">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Profitability 
Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; High relative profitability stocks may perform differently 
from the market as a whole and an investment strategy purchasing these securities may cause a fund to 
at times underperform equity funds that use other investment strategies.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_ValueInvestmentRisk2_S000089405Summary123Member"
      id="ixv-142909">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Value Investment Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Value stocks may perform 
differently from the market as a whole and an investment strategy purchasing these securities may cause 
a fund to at times underperform equity funds that use other investment strategies. Value stocks can react 
differently to political, economic, and industry developments than the market as a whole and other types 
of stocks. Value stocks also may underperform the market for long periods of time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_EmergingMarketsRisk2_S000089405Summary123Member"
      id="ixv-142914">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Emerging Markets Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities of issuers associated 
with emerging market countries may be subject to higher and additional risks than securities of issuers 
in developed foreign markets.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Numerous emerging market countries 
have a history of, and continue to experience serious, and potentially continuing, economic and political 
problems. Stock markets in many emerging market countries are relatively small, expensive to trade in 
and generally have higher risks than those in developed markets. Securities in emerging markets also 
may be less liquid than those in developed markets and foreigners are often limited in their ability 
to invest in, and withdraw assets from, these markets. Additional restrictions may be imposed under other 
conditions. Frontier market countries generally have smaller economies or less developed capital markets 
and, as a result, the risks of investing in emerging market countries are magnified in frontier market 
countries.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_InterestRateRisk2_S000089405Summary123Member"
      id="ixv-142921">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Interest Rate Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:AdvP3F2712; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Fixed income securities are subject to interest rate risk because the prices of 
fixed income securities tend to move in the opposite direction of interest rates. When interest rates 
rise, fixed income security prices fall. During periods of very low or negative interest rates, a fund 
may be subject to a greater risk of rising interest rates. When interest rates fall, fixed income security 
prices rise. In general, fixed income securities with longer maturities are more sensitive to changes 
in interest rates.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_CreditRisk2_S000089405Summary123Member"
      id="ixv-142926">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Credit Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Credit 
risk is the risk that the issuer of a security may be unable to make interest payments and/or repay principal 
when due. A downgrade to an issuer&#x2019;s credit rating or a perceived change in an issuer&#x2019;s financial 
strength may affect a security&#x2019;s value, and thus, impact the performance of a fund holding such 
securities. Government agency obligations have different levels of credit support and, therefore, different 
degrees of credit risk. Securities issued by agencies and instrumentalities of the U.S. Government that 
are supported by the full faith and credit of the United States, such as the Federal Housing Administration 
and Ginnie Mae, present little credit risk. Other securities issued by agencies and instrumentalities 
sponsored by the U.S. Government, that are supported only by the issuer&#x2019;s right to borrow from 
the U.S. Treasury, subject to certain limitations, and securities issued by agencies and instrumentalities 
sponsored by the U.S. Government that are sponsored by the credit of the issuing agencies, such as Freddie 
Mac and Fannie Mae, are subject to a greater degree of credit risk. U.S. government agency securities 
issued or guaranteed by the credit of the agency may still involve a risk of non-payment of principal 
and/or interest. Credit risk is greater for fixed income securities with ratings below investment grade 
(e.g., BB+ or below by S&amp;amp;P or Fitch or Ba1 or below by Moody&#x2019;s).&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_RisksofInvestingforInflationProtection2_S000089405Summary123Member"
      id="ixv-142931">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Risks of Investing for Inflation Protection:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Because 
the interest and/or principal payments on an inflation-protected security are adjusted periodically for 
changes in inflation, the income distributed by a fund investing in such securities may be irregular. 
Although the U.S. Treasury guarantees to pay at maturity at least the original face value of any inflation-protected 
securities the Treasury issues, other issuers may not offer the same guarantee. Inflation-protected securities 
are not protected against deflation. As a result, in a period of deflation, the principal and income 
of inflation-protected securities held by a fund will decline and the fund may suffer a loss during such 
periods. While inflation-protected securities are expected to be protected from long-term inflationary 
trends, short-term increases in inflation may lead to a decline in the value of a fund holding such securities. 
For example, if interest rates rise due to reasons other than inflation, a fund&#x2019;s investment in 
these securities may not be protected to the extent that the increase is not reflected in the securities&#x2019; 
inflation measures. In addition, positive adjustments to principal generally will result in taxable income 
to a fund at the time of such adjustments (which generally would be distributed by the fund as part of 
its taxable dividends), even though the principal amount is not paid until maturity. The current market 
value of inflation-protected securities is not guaranteed and will fluctuate.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_Inflation-ProtectedSecuritiesInterestRateRisk2_S000089405Summary123Member"
      id="ixv-142939">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Interest Rate 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Inflation-protected securities may react differently from 
other fixed income securities to changes in interest rates. Because interest rates on inflation-protected 
securities are adjusted for inflation, the values of these securities are not materially affected by 
inflation expectations. Therefore, the value of inflation-protected securities are anticipated to change 
in response to changes in &#x201c;real&#x201d; interest rates, which represent nominal (stated) interest 
rates reduced by the expected impact of inflation. Generally, the value of an inflation-protected security 
will fall when real interest rates rise and will rise when real interest rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_Inflation-ProtectedSecuritiesTaxRisk2_S000089405Summary123Member"
      id="ixv-142944">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Inflation-Protected Securities Tax Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-Heavy; font-style:normal; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Any increase in the principal 
amount of an inflation-protected security may be included for tax purposes in a fund&#x2019;s gross income, 
even though no cash attributable to such gross income has been received by a fund. In such event, a fund 
may be required to make annual gross distributions to shareholders that exceed the cash it has otherwise 
received. In order to pay such distributions, a fund may be required to raise cash by selling its investments. 
The sale of such investments could result in capital gains to a fund and additional capital gain distributions 
to shareholders. In addition, adjustments during the taxable year for deflation to an inflation-indexed 
bond held by a fund may cause amounts previously distributed to shareholders in the taxable year as income 
to be characterized as a return of capital, which could increase or decrease a fund&#x2019;s ordinary 
income distributions to shareholders, and may cause some of a fund&#x2019;s distributed income to be classified 
as a return of capital.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_IncomeRisk2_S000089405Summary123Member"
      id="ixv-142949">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Income Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Income 
risk is the risk that falling interest rates will cause a fund&#x2019;s income to decline because, among 
other reasons, the proceeds from maturing short-term securities in its portfolio may be reinvested in 
lower-yielding securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_CallRisk2_S000089405Summary123Member"
      id="ixv-142954">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Call Risk&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt;: &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Call 
risk is the risk that during periods of falling interest rates, an issuer will call or repay a higher-yielding 
fixed income security before its maturity date, forcing a fund to reinvest in fixed income securities 
with lower interest rates than the original obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_DerivativesRisk2_S000089405Summary123Member"
      id="ixv-142959">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Derivatives Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Derivatives are instruments, 
such as swaps, futures contracts, and options thereon, and foreign currency forward contracts, whose 
value is derived from that of other assets, rates or indices. Derivatives can be used for hedging (attempting 
to reduce risk by offsetting one investment position with another) or non-hedging purposes. Hedging with 
derivatives may increase expenses, and there is no guarantee that a hedging strategy will work. While 
hedging can reduce or eliminate losses, it can also reduce or eliminate gains or cause losses if the 
market moves in a manner different from that anticipated by a fund or if the cost of the derivative outweighs 
the benefit of the hedge. In regard to currency hedging, it is generally not possible to precisely match 
the foreign currency exposure of such foreign currency forward contracts to the value of the securities 
involved due to fluctuations in the market values of such securities and cash flows into and out of a 
fund between the date a foreign currency forward contract is entered into and the date it expires. The 
use of derivatives for non-hedging purposes may be considered to carry more risk than other types of 
investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. 
Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, 
interest rate, market, credit and management risks, as well as difficulties with respect to valuation. 
Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, 
and a fund could lose more than the principal amount invested. Additional risks are associated with the 
use of swaps including counterparty and credit risk (the risk that the other party to a swap agreement 
will not fulfill its contractual obligations, whether because of bankruptcy or other default) and liquidity 
risk (the possible lack of a secondary market for the swap agreement). Credit risk increases when a fund 
is the seller of swaps and counterparty risk increases when the fund is a buyer of swaps. In addition, 
where a fund is the seller of swaps, it may be required to liquidate portfolio securities at inopportune 
times in order to meet payment obligations. Swaps may be illiquid or difficult to value. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_LiquidityRisk2_S000089405Summary123Member"
      id="ixv-142963">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Liquidity Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Liquidity risk exists when 
particular portfolio investments are difficult to purchase or sell. To the extent that a fund holds illiquid 
investments, the fund&#x2019;s performance may be reduced due to an inability to sell the investments 
at opportune prices or times. Liquid portfolio investments may become illiquid or less liquid after purchase 
by a fund due to low trading volume, adverse investor perceptions, credit tightening and/or other market 
developments. Liquidity risk includes the risk that a fund will experience significant net redemptions 
at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio 
securities at a material loss or at increased costs. Liquidity risk can be more pronounced in periods 
of market turmoil or in situations where ownership of shares of a fund are concentrated in one or a few 
investors. Investments that are illiquid or that trade in lower volumes may be more difficult to value. 
&lt;/span&gt;&lt;/p&gt;
</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_SecuritiesLendingRisk2_S000089405Summary123Member"
      id="ixv-142971">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Securities Lending Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Securities 
lending involves the risk that the borrower may fail to return the securities in a timely manner or at 
all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. 
A fund could also lose money if it does not recover the securities and/or the value of the collateral 
falls, including the value of investments made with cash collateral. Securities lending also may have 
certain adverse tax consequences.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_OperationalRisk2_S000089405Summary123Member"
      id="ixv-142975">&lt;p style="-sec-ix-redline:true;font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Operational 
Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Operational risks include human error, changes in personnel, 
system changes, faults in communication, and failures in systems, technology, or processes, and the use 
of artificial intelligence and machine learning (&#x201c;AI&#x201d;). Various operational events or circumstances 
are outside a fund&#x2019;s or its advisor&#x2019;s control, including instances at third parties. A fund 
and its advisor seek to reduce these operational risks through controls and procedures. However, measures 
that seek to reduce these operational risks through controls and procedures may not address every possible 
risk and may be inadequate to address these risks.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_CyberSecurityRisk2_S000089405Summary123Member"
      id="ixv-142980">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:italic; color:#000000; font-weight:bold; text-decoration:none;"&gt;Cyber 
Security Risk:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir-HeavyOblique; font-style:italic; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;A fund and its service providers&#x2019; 
use of internet, technology and information systems may expose the fund to potential risks linked to 
cyber security breaches of those technological or information systems. Cyber security breaches, amongst 
other things, could allow an unauthorized party to gain access to proprietary information, customer data, 
or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational 
functionality.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278950"> Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-142990">&lt;p style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; text-align:justify; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Performance 
information is not available for the Portfolio because it has not yet completed a full calendar year 
of operations. Updated performance information for the Portfolio can be obtained in the future by visiting 
&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:underline;"&gt;https://www.dimensional.com/us-en/funds&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Avenir LT Pro 45 Book; font-style:normal; font-weight:normal; text-decoration:none;"&gt;. &lt;/span&gt;&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceOneYearOrLess
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
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information is not available for the Portfolio because it has not yet completed a full calendar year 
of operations.</oef:PerformanceOneYearOrLess>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20251031_20251031_S000089405Member_S000089405Summary123Member"
      id="ixv-278952">https://www.dimensional.com/us-en/funds</oef:PerformanceAvailabilityWebSiteAddress>
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    <dei:DocumentPeriodEndDate contextRef="Context_20251031_20251031" id="ixv-278956">2025-10-31</dei:DocumentPeriodEndDate>
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    <dei:DocumentCreationDate contextRef="Context_20251031_20251031" id="ixv-278959">2026-02-27</dei:DocumentCreationDate>
    <dei:DocumentEffectiveDate contextRef="Context_20251031_20251031" id="ixv-278960">2026-02-28</dei:DocumentEffectiveDate>
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      contextRef="Context_20170516_20251231_AfterTaxesOnDistributionsMember_C000182415Member_S000057237Member_S000057237Summary23Member"
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      contextRef="Context_20170118_20251231_C000176269Member_S000055975Member_S000055975Summary34Member"
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      contextRef="Context_20170516_20251231_MSCIWorldexUSAIndexnetdividends3142_S000057238Member_S000057238Summary44Member"
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      contextRef="Context_20181114_20251231_C000204811Member_S000063188Member_S000063188Summary51Member"
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      contextRef="Context_20181114_20251231_AfterTaxesOnDistributionsMember_C000204811Member_S000063188Member_S000063188Summary51Member"
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      contextRef="Context_20181114_20251231_MSCIEmergingMarketsIndexnetdividends3160_S000063188Member_S000063188Summary51Member"
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      contextRef="Context_20211115_20251231_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-333615">2021-11-15</oef:PerfInceptionDate>
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      contextRef="Context_20211115_20251231_AfterTaxesOnDistributionsMember_C000230721Member_S000073658Member_S000073658Summary54Member"
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      contextRef="Context_20211115_20251231_AfterTaxesOnDistributionsAndSalesMember_C000230721Member_S000073658Member_S000073658Summary54Member"
      id="ixv-333617">2021-11-15</oef:PerfInceptionDate>
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      contextRef="Context_20211115_20251231_MSCIEmergingMarketsexChinaIndexnetdividends3166_S000073658Member_S000073658Summary54Member"
      id="ixv-333618">2021-11-15</oef:PerfInceptionDate>
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      contextRef="Context_20180111_20251231_C000196746Member_S000060107Member_S000060107Summary67Member"
      id="ixv-333619">2018-01-11</oef:PerfInceptionDate>
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      contextRef="Context_20180111_20251231_AfterTaxesOnDistributionsMember_C000196746Member_S000060107Member_S000060107Summary67Member"
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption 
Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated 
by the Fund&#x2019;s Board of Directors prior to that date. Under certain circumstances, the Advisor retains 
the right to seek reimbursement for any fees previously waived and/or expenses previously assumed up 
to thirty-six months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the 
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by the Fund&#x2019;s Board of Directors prior to that date. Under certain circumstances, the Advisor retains 
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assume certain expenses of the ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption 
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by the Fund&#x2019;s Board of Directors prior to that date. Under certain circumstances, the Advisor retains 
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certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio 
will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s Board of 
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2025 S&amp;P Dow Jones Indices LLC, a division of S&amp;P Global.  All rights reserved.</xhtml:span></xhtml:p></link:footnote>
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2025 S&amp;P Dow Jones Indices LLC, a division of S&amp;P Global.  All rights reserved.</xhtml:span></xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
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Dow Jones Indices LLC, a division of S&amp;P Global.  All rights reserved.</xhtml:p></link:footnote>
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
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&#x201c;Management Fee&#x201d; includes an investment management fee payable by the Feeder Portfolio and 
an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is 
invested in other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) (collectively, 
&#x201c;Underlying Funds&#x201d;), the Advisor has contractually agreed to permanently waive the Feeder 
Portfolio&#x2019;s direct investment management fee to the extent necessary to offset the proportionate 
share of any Underlying Fund&#x2019;s investment management fee paid by the Feeder Portfolio through its 
investment in such Underlying Fund. The amounts set forth under &#x201c;Other Expenses&#x201d; and &#x201c;Total 
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&#x201c;Management Fee&#x201d; includes an investment management fee payable by the Feeder Portfolio and 
an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is 
invested in other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) (collectively, 
&#x201c;Underlying Funds&#x201d;), the Advisor has contractually agreed to permanently waive the Feeder 
Portfolio&#x2019;s direct investment management fee to the extent necessary to offset the proportionate 
share of any Underlying Fund&#x2019;s investment management fee paid by the Feeder Portfolio through its 
investment in such Underlying Fund. The amounts set forth under &#x201c;Other Expenses&#x201d; and &#x201c;Total 
Annual Fund Operating Expenses&#x201d; reflect the direct expenses of the Feeder Portfolio and the indirect 
expenses of the Feeder Portfolio&#x2019;s portion of the expenses of the Master Fund.</xhtml:p></link:footnote>
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Advisor has further agreed to waive certain fees and in certain instances, assume certain expenses of 
the Portfolio.  This portion of the Fee Waiver and Expense Assumption Agreement for the Portfolio will 
remain in effect through February 28, 2027, and may only be terminated by the Fund's Board of Directors 
prior to that date (the &#x201c;Temporary Fee Waiver&#x201d;).  The Advisor retains the right to seek reimbursement 
for any fees previously waived and/or expenses previously assumed up to thirty-six months after such 
fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
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&#x201c;Management Fee&#x201d; includes an investment management fee payable by the Feeder Portfolio and 
an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is 
invested in other funds managed by Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) (collectively, 
&#x201c;Underlying Funds&#x201d;), the Advisor has contractually agreed to permanently waive the Feeder 
Portfolio&#x2019;s direct investment management fee to the extent necessary to offset the proportionate 
share of any Underlying Fund&#x2019;s investment management fee paid by the Feeder Portfolio through its 
investment in such Underlying Fund. The amounts set forth under &#x201c;Other Expenses&#x201d; and &#x201c;Total 
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expenses of the Feeder Portfolio&#x2019;s portion of the expenses of the Master Fund.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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inception November 15, 2021.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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        <link:loc
          xlink:href="#_5592_"
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          xlink:href="#_5588_"
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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        <link:loc
          xlink:href="#_5963_"
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        <link:loc
          xlink:href="#_5966_"
          xlink:label="_5966_"
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        <link:footnote id="fn81_" xlink:label="fn81_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since 
inception April 26, 2021.</xhtml:p></link:footnote>
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        <link:footnoteArc
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        <link:footnoteArc
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        <link:loc
          xlink:href="#_6163_"
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        <link:loc
          xlink:href="#_6168_"
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        <link:loc
          xlink:href="#_6154_"
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        <link:loc
          xlink:href="#_6150_"
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        <link:footnote id="fn82_" xlink:label="fn82_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception November 1, 2017.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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        <link:loc
          xlink:href="#_6535_"
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        <link:loc
          xlink:href="#_6545_"
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        <link:loc
          xlink:href="#_6531_"
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        <link:footnote id="fn86_" xlink:label="fn86_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception September 30, 2020.</xhtml:p></link:footnote>
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inception April 12, 2022.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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          xlink:href="#_6639_"
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_7027_"
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        <link:loc
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        <link:loc
          xlink:href="#_7110_"
          xlink:label="_7110_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_7096_"
          xlink:label="_7096_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_7105_"
          xlink:label="_7105_"
          xlink:type="locator"/>
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        <link:footnoteArc
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          xlink:from="_7100_"
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          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_7110_"
          xlink:to="fn95_"
          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_7096_"
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          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
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          xlink:label="_7645_"
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        <link:footnote id="fn96_" xlink:label="fn96_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_7645_"
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          xlink:href="#_7851_"
          xlink:label="_7851_"
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        <link:footnote id="fn97_" xlink:label="fn97_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_7851_"
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          xlink:href="#_7932_"
          xlink:label="_7932_"
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        <link:footnote id="fn98_" xlink:label="fn98_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional VA Global Moderate Allocation 
Composite Index is an unmanaged hypothetical index composed of 65% S&amp;P Global BMI Index (net dividends) 
and 35% ICE BofA 1-3 Year Global Government Index (hedged to USD).</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_7932_"
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          xlink:href="#_7942_"
          xlink:label="_7942_"
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        <link:footnote id="fn99_" xlink:label="fn99_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE 
BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no 
deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as 
determined and calculated by the index provider), which may be higher or lower than the actual transaction 
costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_7942_"
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        <link:loc
          xlink:href="#_7958_"
          xlink:label="_7958_"
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        <link:footnote id="fn100_" xlink:label="fn100_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, 
assume certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the 
Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s 
Board of Directors prior to that date. Under certain circumstances, the Advisor retains the right to 
seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six 
months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_7958_"
          xlink:to="fn100_"
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        <link:loc
          xlink:href="#_8029_"
          xlink:label="_8029_"
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        <link:loc
          xlink:href="#_8034_"
          xlink:label="_8034_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8025_"
          xlink:label="_8025_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8021_"
          xlink:label="_8021_"
          xlink:type="locator"/>
        <link:footnote id="fn101_" xlink:label="fn101_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception July 10, 2017.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_8029_"
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        <link:footnoteArc
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          xlink:from="_8034_"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_8025_"
          xlink:to="fn101_"
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        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_8021_"
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        <link:loc
          xlink:href="#_8307_"
          xlink:label="_8307_"
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        <link:footnote id="fn102_" xlink:label="fn102_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses of the 
Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under certain 
circumstances, the Advisor retains the right to seek reimbursement for any expenses previously assumed 
up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_8307_"
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        <link:loc
          xlink:href="#_8381_"
          xlink:label="_8381_"
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        <link:loc
          xlink:href="#_8372_"
          xlink:label="_8372_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8368_"
          xlink:label="_8368_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8376_"
          xlink:label="_8376_"
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        <link:footnote id="fn103_" xlink:label="fn103_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception November 19, 2019.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_8381_"
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        <link:footnoteArc
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          xlink:from="_8372_"
          xlink:to="fn103_"
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        <link:footnoteArc
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          xlink:from="_8368_"
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        <link:footnoteArc
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          xlink:from="_8376_"
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          xlink:href="#_8456_"
          xlink:label="_8456_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8460_"
          xlink:label="_8460_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8464_"
          xlink:label="_8464_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8469_"
          xlink:label="_8469_"
          xlink:type="locator"/>
        <link:footnote id="fn104_" xlink:label="fn104_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception April 5, 2016.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_8456_"
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        <link:footnoteArc
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        <link:footnoteArc
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          xlink:from="_8464_"
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        <link:footnoteArc
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          xlink:from="_8469_"
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          xlink:href="#_8641_"
          xlink:label="_8641_"
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        <link:loc
          xlink:href="#_8627_"
          xlink:label="_8627_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8623_"
          xlink:label="_8623_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8636_"
          xlink:label="_8636_"
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        <link:loc
          xlink:href="#_8631_"
          xlink:label="_8631_"
          xlink:type="locator"/>
        <link:footnote id="fn105_" xlink:label="fn105_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception July 7, 2020.</xhtml:p></link:footnote>
        <link:footnoteArc
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        <link:footnoteArc
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        <link:footnoteArc
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        <link:footnoteArc
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          xlink:from="_8636_"
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        <link:footnoteArc
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          xlink:href="#_8740_"
          xlink:label="_8740_"
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        <link:footnote id="fn106_" xlink:label="fn106_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, assume 
certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio 
will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s Board of 
Directors prior to that date. Under certain circumstances, the Advisor retains the right to seek reimbursement 
for any fees previously waived and/or expenses previously assumed up to thirty-six months after such 
fee waiver and/or expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_8740_"
          xlink:to="fn106_"
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        <link:loc
          xlink:href="#_8805_"
          xlink:label="_8805_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8818_"
          xlink:label="_8818_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8809_"
          xlink:label="_8809_"
          xlink:type="locator"/>
        <link:loc
          xlink:href="#_8813_"
          xlink:label="_8813_"
          xlink:type="locator"/>
        <link:footnote id="fn107_" xlink:label="fn107_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception March 27, 2018.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_8805_"
          xlink:to="fn107_"
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        <link:footnoteArc
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          xlink:from="_8818_"
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        <link:footnoteArc
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          xlink:from="_8809_"
          xlink:to="fn107_"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_8813_"
          xlink:to="fn107_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_8827_"
          xlink:label="_8827_"
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Portfolio is a new portfolio, so the &#x201c;Other Expenses" shown are based on anticipated fees and expenses 
for the first full fiscal year.</xhtml:p></link:footnote>
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        <link:footnote id="fn109_" xlink:label="fn109_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed 
to waive certain fees and in certain instances, assume certain expenses of the Portfolio. The Fee Waiver 
and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, 
and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under certain circumstances, 
the Advisor retains the right to seek reimbursement for any fees previously waived and/or expenses previously 
assumed up to thirty-six months after such fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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          xlink:type="locator"/>
        <link:footnote id="fn110_" xlink:label="fn110_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Since inception November 6, 2018.</xhtml:p></link:footnote>
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        <link:footnoteArc
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          xlink:from="_8949_"
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        <link:footnote id="fn111_" xlink:label="fn111_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">"Shareholder 
Services Fees" are paid to third parties that provide administrative and shareholder services to investors.</xhtml:p></link:footnote>
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        <link:footnote id="fn112_" xlink:label="fn112_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">The 
Class L10 shares of the Portfolio are new, so the &#x201c;Other Expenses" shown for the class are based on 
anticipated fees and expenses for the first full fiscal year.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed to waive certain fees and in certain instances, assume 
certain expenses of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio 
will remain in effect through February 28, 2027, and may only be terminated by the Fund&#x2019;s Board of 
Directors prior to that date. Under certain circumstances, the Advisor retains the right to seek reimbursement 
for any fees previously waived and/or expenses previously assumed up to thirty-six months after such 
fee waiver and/or expense assumption.</xhtml:p></link:footnote>
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        <link:loc
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        <link:loc
          xlink:href="#_9032_"
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        <link:loc
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        <link:loc
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        <link:loc
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          xlink:label="_9055_"
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          xlink:href="#_9042_"
          xlink:label="_9042_"
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        <link:loc
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          xlink:label="_9046_"
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        <link:loc
          xlink:href="#_9043_"
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          xlink:href="#_9031_"
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        <link:loc
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        <link:loc
          xlink:href="#_9045_"
          xlink:label="_9045_"
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        <link:loc
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        <link:loc
          xlink:href="#_9038_"
          xlink:label="_9038_"
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        <link:loc
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          xlink:label="_9048_"
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        <link:loc
          xlink:href="#_9050_"
          xlink:label="_9050_"
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        <link:loc
          xlink:href="#_9044_"
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Portfolio would have substantially similar annual returns as the Class L10 shares because the shares 
are invested in the same portfolio securities. Returns for the Class L10 shares and Institutional Class 
shares will differ to the extent that the classes will have different expenses, and returns for the Class 
L10 shares would be expected to be lower than the returns of the Institutional Class shares to the extent 
that the Class L10 shares have higher expenses than the Institutional Class shares.</xhtml:p></link:footnote>
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        <link:footnoteArc
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          xlink:from="_9045_"
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          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_9041_"
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          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_9038_"
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          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_9048_"
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          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9050_"
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          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9036_"
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          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9044_"
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          xlink:type="arc"/>
        <link:footnoteArc
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          xlink:from="_9057_"
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        <link:footnote id="fn115_" xlink:label="fn115_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional VA Global Moderate Allocation Composite Index 
is an unmanaged hypothetical index composed of 65% S&amp;P Global BMI Index (net dividends) and 35% ICE 
BofA 1-3 Year Global Government Index (hedged to USD).</xhtml:p></link:footnote>
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        <link:footnote id="fn116_" xlink:label="fn116_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE 
BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no 
deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as 
determined and calculated by the index provider), which may be higher or lower than the actual transaction 
costs incurred by the Portfolio.</xhtml:p></link:footnote>
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          xlink:href="#_9349_"
          xlink:label="_9349_"
          xlink:type="locator"/>
        <link:footnote id="fn117_" xlink:label="fn117_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses of the 
Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under certain 
circumstances, the Advisor retains the right to seek reimbursement for any expenses previously assumed 
up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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        <link:loc
          xlink:href="#_9438_"
          xlink:label="_9438_"
          xlink:type="locator"/>
        <link:footnote id="fn118_" xlink:label="fn118_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:from="_9438_"
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          xlink:type="arc"/>
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          xlink:href="#_9464_"
          xlink:label="_9464_"
          xlink:type="locator"/>
        <link:footnote id="fn119_" xlink:label="fn119_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses of the 
Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under certain 
circumstances, the Advisor retains the right to seek reimbursement for any expenses previously assumed 
up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
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          xlink:href="#_9553_"
          xlink:label="_9553_"
          xlink:type="locator"/>
        <link:footnote id="fn120_" xlink:label="fn120_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9553_"
          xlink:to="fn120_"
          xlink:type="arc"/>
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          xlink:href="#_9579_"
          xlink:label="_9579_"
          xlink:type="locator"/>
        <link:footnote id="fn121_" xlink:label="fn121_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">Dimensional 
Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses of the 
Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under certain 
circumstances, the Advisor retains the right to seek reimbursement for any expenses previously assumed 
up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9579_"
          xlink:to="fn121_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_9668_"
          xlink:label="_9668_"
          xlink:type="locator"/>
        <link:footnote id="fn122_" xlink:label="fn122_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9668_"
          xlink:to="fn122_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_9781_"
          xlink:label="_9781_"
          xlink:type="locator"/>
        <link:footnote id="fn123_" xlink:label="fn123_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="_9781_"
          xlink:to="fn123_"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#_9894_"
          xlink:label="_9894_"
          xlink:type="locator"/>
        <link:footnote id="fn124_" xlink:label="fn124_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.5pt; font-family:Avenir LT Pro 55 Roman; text-align:justify; font-weight:normal; text-decoration:none;">ICE BofA index data copyright 2025 ICE 
Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses 
of the Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under 
certain circumstances, the Advisor retains the right to seek reimbursement for any expenses previously 
assumed up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses 
of the Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under 
certain circumstances, the Advisor retains the right to seek reimbursement for any expenses previously 
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Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective 
July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), 
which may be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses 
of the Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under 
certain circumstances, the Advisor retains the right to seek reimbursement for any expenses previously 
assumed up to thirty-six months after such expense assumption.</xhtml:p></link:footnote>
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Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, 
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be higher or lower than the actual transaction costs incurred by the Portfolio.</xhtml:p></link:footnote>
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Fund Advisors LP (the &#x201c;Advisor&#x201d;) has agreed in certain instances to assume certain expenses 
of the Portfolio. The Expense Assumption Agreement for the Portfolio will remain in effect through February 
28, 2027, and may only be terminated by the Fund&#x2019;s Board of Directors prior to that date. Under 
certain circumstances, the Advisor retains the right to seek reimbursement for any expenses previously 
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