| Label | Element | Value | ||||
|---|---|---|---|---|---|---|
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Registrant Name | dei_EntityRegistrantName | JOHN HANCOCK FUNDS II | ||||
| Prospectus Date | rr_ProspectusDate | Jan. 01, 2025 | ||||
| Class NAV | Real Estate Securities Fund | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk/Return [Heading] | rr_RiskReturnHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:24pt;">John Hancock Real Estate Securities Fund</span> | ||||
| Objective [Heading] | rr_ObjectiveHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Investment objective</span> | ||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | To seek to achieve a combination of long-term capital appreciation and current income. | ||||
| Expense [Heading] | rr_ExpenseHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Fees and expenses</span> | ||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | This table describes the fees and expenses you may pay if you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. | ||||
| Shareholder Fees Caption [Text] | rr_ShareholderFeesCaption | <span style="color:#000000;font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Shareholder fees (%) </span><span style="color:#000000;font-family:Arial Narrow;font-size:8pt;margin-left:0.0pt;">(fees paid directly from your investment)</span> | ||||
| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Annual fund operating expenses (%) </span><span style="font-family:Arial Narrow;font-size:8pt;margin-left:0.0pt;">(expenses that you pay each year as a percentage of the value of your investment)</span> | ||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination | <span style="font-family:Arial Narrow;font-size:8pt;">July 31, 2026</span> | ||||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Portfolio turnover</span> | ||||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate 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 fund’s performance. During its most recent fiscal year, the fund’s portfolio turnover rate was 72% of the average value of its portfolio. | ||||
| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 72.00% | ||||
| Expense Example [Heading] | rr_ExpenseExampleHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Expense example</span> | ||||
| Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock | This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. Please see below a hypothetical example showing the expenses of a $10,000 investment for the time periods indicated and then assuming you sell all of your shares at the end of those periods. The example assumes a 5% average annual return and that fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: | ||||
| Strategy [Heading] | rr_StrategyHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Principal investment strategies</span> | ||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of real estate investment trusts (“REITs”) and real estate companies. Equity securities include common stock, preferred stock and securities convertible into common stock. A company is considered to be a real estate company if the Global Industry Classification Standards includes the company within its Real Estate sector or Hotels, Restaurants & Leisure Industry or Homebuilding sub-industry. The manager looks for real estate securities it believes will provide superior returns to the fund, and attempts to focus on companies with the potential for stock price appreciation and a record of paying dividends. This may include companies of any market capitalization, including small and mid-sized companies. The manager’s approach to real estate investing is based on a bottom-up analysis of factors affecting individual securities, combined with a top-down analysis of the real estate market. The manager believes that property markets overly discount and extrapolate short-term events and that a research-intensive and long-term focus are the keys to sustainable returns. By focusing on multiple metrics to determine the value of a company, the manager is able to identify mis-pricing between stock prices and fundamentals, and ultimately invest in what the manager believes are long-term winners at below market valuations. The manager’s bottom-up research coupled with top-down trends in the property markets allow the manager to effectively capture inflection points and own companies with dominant and improving market positions before their true value is recognized by the broader investment community. A REIT invests primarily in income-producing real estate or makes loans to persons involved in the real estate industry. Some REITs, called equity REITs, buy real estate and pay investors income from the rents received from the real estate owned by the REIT and from any profits on the sale of its properties. Other REITs, called mortgage REITs, lend money to building developers and other real estate companies and pay investors income from the interest paid on those loans. There are also hybrid REITs which engage in both owning real estate and making loans. If a REIT meets certain requirements, it is not taxed on the income it distributes to its investors. The fund may realize some short-term gains or losses if the manager chooses to sell a security because it believes that one or more of the following is true: ●A security is not fulfilling its investment purpose; ●A security has reached its optimum valuation; or ●A particular company or general economic conditions have changed. Based on its recent practices, the manager expects that the fund’s assets will be invested primarily in equity REITs. In changing market conditions, the fund may invest in other types of REITs. When the manager believes that it is prudent, the fund may invest a portion of its assets in other types of securities. These securities may include convertible securities, short-term securities, bonds, notes, securities of companies not principally engaged in the real estate industry, non-leveraged stock index futures contracts and other similar securities. (Stock index futures contracts can help the fund’s cash assets remain liquid while performing more like stocks.) The fund may invest up to 10% of its total assets in securities of foreign real estate companies. The fund is a non-diversified fund, which means that it may invest in a smaller number of issuers than a diversified fund and may invest more of its assets in the securities of a single issuer. The fund concentrates its investments in securities of issuers in the real estate industry. | ||||
| Risk [Heading] | rr_RiskHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Principal risks</span> | ||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Past performance</span> | ||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based securities market index. Past performance (before and after taxes) does not indicate future results. The Dow Jones U.S. Select REIT Index shows how the fund’s performance compares against the returns of similar investments. All figures assume dividend reinvestment. Performance information is updated daily, monthly, and quarterly and may be obtained by calling 800-344-1029 between 8:00 a.m. and 7:00 p.m., Eastern time, on most business days.A note on performanceClass 1 shares commenced operations on October 15, 2005. Because Class NAV shares had not commenced operations as of the date of this prospectus, the returns shown are those of Class 1 shares, except that they do not include sales charges and would be lower if they did. Returns for Class NAV shares would have been substantially similar to returns of Class 1 shares because each share class is invested in the same portfolio of securities and returns would differ only to the extent that expenses of the classes are different. To the extent expenses of a class would have been higher than expenses of Class 1 shares for the periods shown, performance would have been lower.Prior to November 16, 2020, the fund was managed by a different subadvisor pursuant to different investment strategies, and thus, the performance presented prior to this date should not be attributed to the current subadvisor. The fund’s performance shown below might have differed materially had the current subadvisor managed the fund prior to November 16, 2020.Please note that after-tax returns reflect the highest individual federal marginal income-tax rate in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k), or other tax-advantaged investment plan. | ||||
| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | <span style="font-family:Arial Narrow;font-size:9pt;">The following information illustrates the variability of the fund’s returns and provides some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year and by showing how the fund’s average annual returns compared with a broad-based securities market index. </span> | ||||
| Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | <span style="font-family:Arial Narrow;font-size:9pt;">800-344-1029 between 8:00 </span><span style="font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;">a.m.</span><span style="font-family:Arial Narrow;font-size:9pt;"> and 7:00</span><span style="font-family:Arial Narrow;font-size:9pt;line-height:12pt;"> </span><span style="font-family:Arial Narrow;font-size:9pt;font-variant:small-caps;">p.m.</span><span style="font-family:Arial Narrow;font-size:9pt;">, Eastern time, on most business days.</span> | ||||
| Performance Past Does Not Indicate Future [Text] | rr_PerformancePastDoesNotIndicateFuture | <span style="font-family:Arial Narrow;font-size:9pt;">Past performance (before and after taxes) does not indicate future results. </span> | ||||
| Bar Chart [Heading] | rr_BarChartHeading | <span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;">Calendar year total returns (%)—Class NAV</span> | ||||
| Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock | Year-to-date total return through:Q3 202416.30%Best quarter:Q4 202117.22%Worst quarter:Q1 2020-22.99% | ||||
| Performance Table Heading | rr_PerformanceTableHeading | <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Average annual total returns (%)—as of 12/31/2023</span> | ||||
| Performance Table Market Index Changed | rr_PerformanceTableMarketIndexChanged | <span style="font-family:Arial Narrow;font-size:8pt;">The fund has designated the S&P 500 Index as its new broad-based securities market index in accordance with the revised definition for such an index.</span> | ||||
| Performance Table Uses Highest Federal Rate | rr_PerformanceTableUsesHighestFederalRate | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">Please note that after-tax returns reflect the highest individual federal marginal income-tax rate in effect as of the date provided and do not reflect any state or local taxes.</span> | ||||
| Performance Table Not Relevant to Tax Deferred | rr_PerformanceTableNotRelevantToTaxDeferred | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;"> Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k), or other </span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;">tax-advantaged investment plan.</span> | ||||
| Class NAV | Real Estate Securities Fund | Risk Nondiversified Status [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Non-diversified risk. Adverse events affecting a particular issuer or group of issuers may magnify losses for non-diversified funds, which may invest a large portion of assets in any one issuer or a small number of issuers. | ||||
| Class NAV | Real Estate Securities Fund | Risk Lose Money [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Many factors affect performance, and fund shares will fluctuate in price, meaning you could lose money. | ||||
| Class NAV | Real Estate Securities Fund | Risk Not Insured Depository Institution [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. | ||||
| Class NAV | Real Estate Securities Fund | Concentration Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Concentration risk. Because the fund may focus on one or more industries or sectors of the economy, its performance depends in large part on the performance of those industries or sectors. As a result, the value of an investment may fluctuate more widely since it is more susceptible to market, economic, political, regulatory, and other conditions and risks affecting those industries or sectors than a fund that invests more broadly across industries and sectors. A downturn in the real estate industry may significantly detract from performance. | ||||
| Class NAV | Real Estate Securities Fund | Credit And Counterparty Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Credit and counterparty risk. The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract, or a borrower of fund securities may not make timely payments or otherwise honor its obligations. A downgrade or default affecting any of the fund’s securities could affect the fund’s performance. | ||||
| Class NAV | Real Estate Securities Fund | Economic And Market Events Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Economic and market events risk. Events in the U.S. and global financial markets, including actions taken by the U.S. Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Reduced liquidity in credit and fixed-income markets could adversely affect issuers worldwide. Banks and financial services companies could suffer losses if interest rates rise or economic conditions deteriorate. | ||||
| Class NAV | Real Estate Securities Fund | Equity Securities Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Equity securities risk. The price of equity securities may decline due to changes in a company’s financial condition or overall market conditions. | ||||
| Class NAV | Real Estate Securities Fund | Fixed Income Securities Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Fixed-income securities risk. A rise in interest rates typically causes bond prices to fall. The longer the average maturity or duration of the bonds held by a fund, the more sensitive it will likely be to interest-rate fluctuations. An issuer may not make all interest payments or repay all or any of the principal borrowed. Changes in a security’s credit quality may adversely affect fund performance. | ||||
| Class NAV | Real Estate Securities Fund | Foreign Securities Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Foreign securities risk. Less information may be publicly available regarding foreign issuers, including foreign government issuers. Foreign securities may be subject to foreign taxes and may be more volatile than U.S. securities. Currency fluctuations and political and economic developments may adversely impact the value of foreign securities. | ||||
| Class NAV | Real Estate Securities Fund | Hedging Derivatives And Other Strategic Transactions Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Hedging, derivatives, and other strategic transactions risk. Hedging, derivatives, and other strategic transactions may increase a fund’s volatility and could produce disproportionate losses, potentially more than the fund’s principal investment. Risks of these transactions are different from and possibly greater than risks of investing directly in securities and other traditional instruments. Under certain market conditions, derivatives could become harder to value or sell and may become subject to liquidity risk (i.e., the inability to enter into closing transactions). Derivatives and other strategic transactions that the fund intends to utilize include: futures contracts. Futures contracts generally are subject to counterparty risk. | ||||
| Class NAV | Real Estate Securities Fund | High Portfolio Turnover Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | High portfolio turnover risk. Trading securities actively and frequently can increase transaction costs (thus lowering performance) and taxable distributions. | ||||
| Class NAV | Real Estate Securities Fund | Large Company Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Large company risk. Larger companies may grow more slowly than smaller companies or be slower to respond to business developments. Large-capitalization securities may underperform the market as a whole. | ||||
| Class NAV | Real Estate Securities Fund | Liquidity Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Liquidity risk. The extent (if at all) to which a security may be sold or a derivative position closed without negatively impacting its market value may be impaired by reduced market activity or participation, legal restrictions, or other economic and market impediments. Liquidity risk may be magnified in rising interest rate environments due to higher than normal redemption rates. Widespread selling of fixed-income securities to satisfy redemptions during periods of reduced demand may adversely impact the price or salability of such securities. Periods of heavy redemption could cause the fund to sell assets at a loss or depressed value, which could negatively affect performance. Redemption risk is heightened during periods of declining or illiquid markets. | ||||
| Class NAV | Real Estate Securities Fund | Operational And Cybersecurity Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Operational and cybersecurity risk. Cybersecurity breaches may allow an unauthorized party to gain access to fund assets, customer data, or proprietary information, or cause a fund or its service providers to suffer data corruption or lose operational functionality. Similar incidents affecting issuers of a fund’s securities may negatively impact performance. Operational risk may arise from human error, error by third parties, communication errors, or technology failures, among other causes. | ||||
| Class NAV | Real Estate Securities Fund | Preferred And Convertible Securities Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Preferred and convertible securities risk. Preferred stock dividends are payable only if declared by the issuer’s board. Preferred stock may be subject to redemption provisions. The market values of convertible securities tend to fall as interest rates rise and rise as interest rates fall. Convertible preferred stock’s value can depend heavily upon the underlying common stock’s value. | ||||
| Class NAV | Real Estate Securities Fund | Quantitative Modeling Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Quantitative modeling risk. Quantitative models may not accurately predict future market movements or characteristics, which may negatively impact performance. Models also may perform differently than expected due to implementation problems, technological malfunction, or programming or data inaccuracies, among other possible issues. | ||||
| Class NAV | Real Estate Securities Fund | Real Estate Investment Trust Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Real estate investment trust (REIT) risk. REITs, pooled investment vehicles that typically invest in real estate directly or in loans collateralized by real estate, carry risks associated with owning real estate, including the potential for a decline in value due to economic or market conditions. | ||||
| Class NAV | Real Estate Securities Fund | Real Estate Securities Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Real estate securities risk. Securities of companies in the real estate industry carry risks associated with owning real estate, including the potential for a decline in value due to economic or market conditions. | ||||
| Class NAV | Real Estate Securities Fund | Small And Mid Sized Company Risk [Member] | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Risk [Text Block] | rr_RiskTextBlock | Small and mid-sized company risk. Small and mid-sized companies are generally less established and may be more volatile than larger companies. Small and/or mid-capitalization securities may underperform the market as a whole. | ||||
| Class NAV | Real Estate Securities Fund | Class NAV | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| Maximum front-end sales charge (load) | rr_MaximumCumulativeSalesChargeOverOther | none | ||||
| Maximum deferred sales charge (load) | rr_MaximumDeferredSalesChargeOverOther | none | ||||
| Management fee | rr_ManagementFeesOverAssets | 0.70% | ||||
| Other expenses | rr_OtherExpensesOverAssets | 0.11% | ||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 0.81% | ||||
| Contractual expense reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.01%) | [1] | |||
| Total annual fund operating expenses after expense reimbursements | rr_NetExpensesOverAssets | 0.80% | ||||
| 1 year | rr_ExpenseExampleYear01 | $ 82 | ||||
| 3 years | rr_ExpenseExampleYear03 | 258 | ||||
| 5 years | rr_ExpenseExampleYear05 | 449 | ||||
| 10 years | rr_ExpenseExampleYear10 | $ 1,001 | ||||
| 2014 | rr_AnnualReturn2014 | 31.58% | ||||
| 2015 | rr_AnnualReturn2015 | 2.77% | ||||
| 2016 | rr_AnnualReturn2016 | 6.91% | ||||
| 2017 | rr_AnnualReturn2017 | 6.22% | ||||
| 2018 | rr_AnnualReturn2018 | (3.41%) | ||||
| 2019 | rr_AnnualReturn2019 | 29.26% | ||||
| 2020 | rr_AnnualReturn2020 | (5.49%) | ||||
| 2021 | rr_AnnualReturn2021 | 46.48% | ||||
| 2022 | rr_AnnualReturn2022 | (28.54%) | ||||
| 2023 | rr_AnnualReturn2023 | 12.92% | ||||
| Year to Date Return, Label | rr_YearToDateReturnLabel | <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Year-to-date total return through:</span> | ||||
| Bar Chart, Year to Date Return, Date | rr_BarChartYearToDateReturnDate | Sep. 30, 2024 | ||||
| Bar Chart, Year to Date Return | rr_BarChartYearToDateReturn | 16.30% | ||||
| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Best quarter:</span> | ||||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Dec. 31, 2021 | ||||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 17.22% | ||||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | <span style="font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">Worst quarter:</span> | ||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | ||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (22.99%) | ||||
| 1 year | rr_AverageAnnualReturnYear01 | 12.92% | ||||
| 5 year | rr_AverageAnnualReturnYear05 | 7.63% | ||||
| 10 year | rr_AverageAnnualReturnYear10 | 7.91% | ||||
| Class NAV | Real Estate Securities Fund | Return After Taxes on Distributions | Class NAV | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| 1 year | rr_AverageAnnualReturnYear01 | 11.85% | ||||
| 5 year | rr_AverageAnnualReturnYear05 | 5.36% | ||||
| 10 year | rr_AverageAnnualReturnYear10 | 5.37% | ||||
| Class NAV | Real Estate Securities Fund | Return After Taxes on Distributions and Sale of Shares | Class NAV | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| 1 year | rr_AverageAnnualReturnYear01 | 7.65% | ||||
| 5 year | rr_AverageAnnualReturnYear05 | 5.53% | ||||
| 10 year | rr_AverageAnnualReturnYear10 | 5.60% | ||||
| Class NAV | Real Estate Securities Fund | S&P 500 Index (reflects no deduction for fees, expenses, or taxes) | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| 1 year | rr_AverageAnnualReturnYear01 | 26.29% | [2] | |||
| 5 year | rr_AverageAnnualReturnYear05 | 15.69% | [2] | |||
| 10 year | rr_AverageAnnualReturnYear10 | 12.03% | [2] | |||
| Class NAV | Real Estate Securities Fund | Dow Jones U.S. Select REIT Index (reflects no deduction for fees, expenses, or taxes) | ||||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||||
| 1 year | rr_AverageAnnualReturnYear01 | 13.96% | ||||
| 5 year | rr_AverageAnnualReturnYear05 | 6.12% | ||||
| 10 year | rr_AverageAnnualReturnYear10 | 7.00% | ||||
| ||||||