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    <unit id="usd">
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    <unit id="pure">
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    <unit id="Years">
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      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143733">Equity Income Fund</rr:RiskReturnHeading>
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 Investment Objective(s)</rr:ObjectiveHeading>
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      id="ixv-363">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The fund seeks a high 
level of dividend income and long-term capital growth primarily through investments in stocks.&lt;/p&gt;</rr:ObjectivePrimaryTextBlock>
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      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
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      id="ixv-366">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:bold; text-decoration:none;"&gt;This 
table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the fund. 
You may also incur brokerage commissions and other charges when buying or selling shares of the fund, 
which are not reflected in the table or example below.&lt;/p&gt;</rr:ExpenseNarrativeTextBlock>
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fees (fees paid directly from your investment)</rr:ShareholderFeesCaption>
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      unitRef="usd">0</rr:MaximumAccountFee>
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      decimals="INF"
      id="ixv-143740"
      unitRef="usd">0</rr:MaximumAccountFee>
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      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
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      unitRef="usd">0</rr:MaximumAccountFee>
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      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
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      unitRef="usd">0</rr:MaximumAccountFee>
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      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143743">Annual 
fund operating expenses (expenses that you pay each 
year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
    <rr:ManagementFeesOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143745"
      unitRef="pure">0.0053</rr:ManagementFeesOverAssets>
    <rr:ManagementFeesOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143746"
      unitRef="pure">0.0053</rr:ManagementFeesOverAssets>
    <rr:ManagementFeesOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143747"
      unitRef="pure">0.0053</rr:ManagementFeesOverAssets>
    <rr:ManagementFeesOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143748"
      unitRef="pure">0.0053</rr:ManagementFeesOverAssets>
    <rr:ManagementFeesOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143749"
      unitRef="pure">0.0053</rr:ManagementFeesOverAssets>
    <rr:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143750"
      unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
    <rr:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143751"
      unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
    <rr:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143752"
      unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
    <rr:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="_30_"
      unitRef="pure">0.0050</rr:DistributionAndService12b1FeesOverAssets>
    <rr:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143754"
      unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
    <rr:OtherExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143755"
      unitRef="pure">0.0014</rr:OtherExpensesOverAssets>
    <rr:OtherExpensesOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143756"
      unitRef="pure">0.0003</rr:OtherExpensesOverAssets>
    <rr:OtherExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143757"
      unitRef="pure">0.0020</rr:OtherExpensesOverAssets>
    <rr:OtherExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143758"
      unitRef="pure">0.0022</rr:OtherExpensesOverAssets>
    <rr:OtherExpensesOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143759"
      unitRef="pure">0</rr:OtherExpensesOverAssets>
    <rr:ExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143760"
      unitRef="pure">0.0067</rr:ExpensesOverAssets>
    <rr:ExpensesOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143761"
      unitRef="pure">0.0056</rr:ExpensesOverAssets>
    <rr:ExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143762"
      unitRef="pure">0.0098</rr:ExpensesOverAssets>
    <rr:ExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143763"
      unitRef="pure">0.0125</rr:ExpensesOverAssets>
    <rr:ExpensesOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143764"
      unitRef="pure">0.0053</rr:ExpensesOverAssets>
    <rr:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143765"
      unitRef="pure">0</rr:FeeWaiverOrReimbursementOverAssets>
    <rr:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143766"
      unitRef="pure">0</rr:FeeWaiverOrReimbursementOverAssets>
    <rr:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143767"
      unitRef="pure">0</rr:FeeWaiverOrReimbursementOverAssets>
    <rr:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143768"
      unitRef="pure">0</rr:FeeWaiverOrReimbursementOverAssets>
    <rr:FeeWaiverOrReimbursementOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="_46_"
      unitRef="pure">-0.0053</rr:FeeWaiverOrReimbursementOverAssets>
    <rr:NetExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143770"
      unitRef="pure">0.0067</rr:NetExpensesOverAssets>
    <rr:NetExpensesOverAssets
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143771"
      unitRef="pure">0.0056</rr:NetExpensesOverAssets>
    <rr:NetExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143772"
      unitRef="pure">0.0098</rr:NetExpensesOverAssets>
    <rr:NetExpensesOverAssets
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143773"
      unitRef="pure">0.0125</rr:NetExpensesOverAssets>
    <rr:NetExpensesOverAssets
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="_51_"
      unitRef="pure">0.0000</rr:NetExpensesOverAssets>
    <rr:ExpenseExampleHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143775">Example</rr:ExpenseExampleHeading>
    <rr:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143776">This example is intended to help you compare the cost of investing in the fund with the cost of investing 
in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated 
and then redeem all of your shares at the end of those periods, that your investment has a 5% return 
each year, and that the fund&#x2019;s operating expenses remain the same. The example also assumes that any 
current expense limitation arrangement remains in place for the period noted in the previous table; therefore, 
the figures have been adjusted to reflect fee waivers or expense &lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:bold; text-decoration:none;"&gt;reimbursements 
only in the periods for which the expense limitation arrangement is expected to continue. Although your 
actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</rr:ExpenseExampleNarrativeTextBlock>
    <rr:ExpenseExampleYear01
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143777"
      unitRef="usd">68</rr:ExpenseExampleYear01>
    <rr:ExpenseExampleYear03
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143778"
      unitRef="usd">214</rr:ExpenseExampleYear03>
    <rr:ExpenseExampleYear05
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143779"
      unitRef="usd">373</rr:ExpenseExampleYear05>
    <rr:ExpenseExampleYear10
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143780"
      unitRef="usd">835</rr:ExpenseExampleYear10>
    <rr:ExpenseExampleYear01
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143781"
      unitRef="usd">57</rr:ExpenseExampleYear01>
    <rr:ExpenseExampleYear03
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143782"
      unitRef="usd">179</rr:ExpenseExampleYear03>
    <rr:ExpenseExampleYear05
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143783"
      unitRef="usd">313</rr:ExpenseExampleYear05>
    <rr:ExpenseExampleYear10
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143784"
      unitRef="usd">701</rr:ExpenseExampleYear10>
    <rr:ExpenseExampleYear01
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143785"
      unitRef="usd">100</rr:ExpenseExampleYear01>
    <rr:ExpenseExampleYear03
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143786"
      unitRef="usd">312</rr:ExpenseExampleYear03>
    <rr:ExpenseExampleYear05
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143787"
      unitRef="usd">542</rr:ExpenseExampleYear05>
    <rr:ExpenseExampleYear10
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143788"
      unitRef="usd">1201</rr:ExpenseExampleYear10>
    <rr:ExpenseExampleYear01
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143789"
      unitRef="usd">127</rr:ExpenseExampleYear01>
    <rr:ExpenseExampleYear03
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143790"
      unitRef="usd">397</rr:ExpenseExampleYear03>
    <rr:ExpenseExampleYear05
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143791"
      unitRef="usd">686</rr:ExpenseExampleYear05>
    <rr:ExpenseExampleYear10
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143792"
      unitRef="usd">1511</rr:ExpenseExampleYear10>
    <rr:ExpenseExampleYear01
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143793"
      unitRef="usd">0</rr:ExpenseExampleYear01>
    <rr:ExpenseExampleYear03
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143794"
      unitRef="usd">0</rr:ExpenseExampleYear03>
    <rr:ExpenseExampleYear05
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143795"
      unitRef="usd">0</rr:ExpenseExampleYear05>
    <rr:ExpenseExampleYear10
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143796"
      unitRef="usd">0</rr:ExpenseExampleYear10>
    <rr:PortfolioTurnoverTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-1022">&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:bold; text-decoration:none;"&gt;Portfolio Turnover  The fund pays transaction 
costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its portfolio). A 
higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when 
the fund&#x2019;s 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&#x2019;s performance. During the most recent fiscal 
year, the fund&#x2019;s portfolio turnover rate was 21.4% of the average value of its portfolio.&lt;/p&gt;</rr:PortfolioTurnoverTextBlock>
    <rr:PortfolioTurnoverHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143797">Portfolio Turnover</rr:PortfolioTurnoverHeading>
    <rr:PortfolioTurnoverRate
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143798"
      unitRef="pure">0.214</rr:PortfolioTurnoverRate>
    <rr:StrategyHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143799">Principal Investment Strategies</rr:StrategyHeading>
    <rr:StrategyNarrativeTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-1026">&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The fund normally invests 
at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities with 
a track record of paying dividends. The fund considers a company to have a track record of paying dividends 
if the security has paid a dividend within the past 12 months. Any derivatives that provide exposure 
to the investment focus suggested by the fund&#x2019;s name, or to one or more market risk factors associated 
with the investment focus suggested by the fund&#x2019;s name, are counted (as applicable) toward compliance 
with the fund&#x2019;s 80% investment policy.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The fund generally seeks investments in large-cap companies. 
The fund typically employs a value approach in selecting investments. The adviser&#x2019;s in-house research 
team seeks dividend-paying companies that appear to be undervalued by various measures and may be temporarily 
out of favor but have good prospects for capital appreciation and dividend growth.&lt;/p&gt;&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;In selecting investments, 
the adviser generally looks for companies with one or more of the following:&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:7.0pt; font-family:Symbol; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;an established operating history;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:7.0pt; font-family:Symbol; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;above-average dividend yield relative to the broader equity 
market;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:7.0pt; font-family:Symbol; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;low 
price/earnings ratio relative to the broader equity market;&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:7.0pt; font-family:Symbol; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;a sound balance sheet and other positive financial characteristics; 
or&lt;/span&gt;&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; text-indent:-8.65pt; font-weight:normal; margin-left:8.65pt; font-style:normal;"&gt;&lt;span style="font-size:7.0pt; font-family:Symbol; font-style:normal; font-weight:normal; text-decoration:none;"&gt;&#xb7;&lt;/span&gt;&lt;span style="word-spacing:5.325pt;"&gt;&#160;&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;low 
stock price relative to a company&#x2019;s underlying value as measured by assets, cash flow, or business 
franchises.&lt;/span&gt;&lt;/p&gt;&lt;span style="-sec-ix-redline:true;"&gt;&#160;&lt;/span&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;At 
times, the fund may have a significant portion of its assets invested in the same economic sector. While 
most assets are typically invested in U.S. common stocks, the fund may invest in foreign stocks in keeping 
with its objective(s). &lt;/p&gt;</rr:StrategyNarrativeTextBlock>
    <rr:RiskHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143800">Principal Risks</rr:RiskHeading>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_RiskLoseMoneyMember_S000002076Summary1Member"
      id="ixv-143801"> The fund&#x2019;s share price fluctuates, which means you could lose 
money by investing in the fund.</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Dividend-payingstocks_S000002076Summary1Member"
      id="ixv-1068">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Dividend-paying stocks:  &lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The fund&#x2019;s emphasis 
on dividend-paying stocks could cause the fund to underperform similar funds that invest without consideration 
of a company&#x2019;s track record of paying dividends. Stocks of companies with a history of paying dividends 
may not participate in a broad market advance to the same degree as most other stocks, and a sharp rise 
in interest rates or economic downturn could cause a company to unexpectedly reduce or eliminate its 
dividend.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Stockinvesting_S000002076Summary1Member"
      id="ixv-1072">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Stock investing:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  Stocks generally fluctuate in value more than bonds and 
may decline significantly over short time periods. There is a chance that stock prices overall will decline 
because stock markets tend to move in cycles, with periods of rising and falling prices. The value of 
stocks held by the fund may decline due to general weakness or volatility in the stock markets in which 
the fund invests or because of factors that affect a particular company or industry.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Valueinvesting_S000002076Summary1Member"
      id="ixv-1076">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Value investing:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 The fund&#x2019;s value approach to investing could cause it to underperform other stock funds that employ 
a different investment style. The intrinsic value of a stock with value characteristics may not be fully 
recognized by the market for a long time (or at all) or a stock judged to be undervalued may actually 
be appropriately priced at a low level. Value stocks may fail to appreciate for long periods and may 
never reach what the adviser believes are their full market values.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Marketconditions_S000002076Summary1Member"
      id="ixv-1080">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Market conditions:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 The value of the fund&#x2019;s investments may decrease, sometimes rapidly or unexpectedly, due to factors 
affecting an issuer held by the fund, particular industries, or the overall securities markets. A variety 
of factors can increase the volatility of the fund&#x2019;s holdings and markets generally, including economic, 
political, or regulatory developments, recessions, inflation, rapid interest rate changes, war, military 
conflict, acts of terrorism, natural disasters, and outbreaks of infectious illnesses or other widespread 
public health issues (such as the coronavirus pandemic) and related governmental and public responses 
(including sanctions). Certain events may cause instability across global markets, including reduced 
liquidity and disruptions in trading markets, while some events may affect certain geographic regions, 
countries, sectors, and industries more significantly than others. Government intervention in markets 
may impact interest rates, market volatility, and security pricing. These adverse developments may cause 
broad declines in market value due to short-term market movements or for significantly longer periods 
during more prolonged market downturns.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Large-capstocks_S000002076Summary1Member"
      id="ixv-1084">&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Large-cap stocks:  &lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Securities issued by 
large-cap companies tend to be less volatile than securities issued by small- and mid-cap companies. 
However, large-cap companies may not be &lt;/span&gt;&lt;/p&gt;

&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;able 
to attain the high growth rates of successful small- and mid-cap companies, especially during strong 
economic periods, and may be unable to respond as quickly to competitive challenges. &lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Sectorexposure_S000002076Summary1Member"
      id="ixv-1103">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Sector exposure:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 Issuers in the same economic sector may be similarly affected by economic or market events, making the 
fund more vulnerable to unfavorable developments in that economic sector than funds that invest more 
broadly. &lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Foreigninvesting_S000002076Summary1Member"
      id="ixv-1107">&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Foreign investing:  &lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;Non-U.S.&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt; &lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;securities tend to be more volatile and 
have lower overall liquidity and trading volume than investments in U.S. securities and may lose value 
because of adverse local, political, social, or economic developments overseas, or due to changes in 
the exchange rates between foreign currencies and the U.S. dollar. Further, securities of non-U.S. issuers 
are subject to trading markets with potential governmental interference, varying regulatory, auditing, 
and accounting standards, and settlement and clearance practices that differ from those of U.S. issuers. 
Investment in non-U.S. securities also carries currency risk. Any attempts to hedge currency risk could 
be unsuccessful. Such investments may have higher transaction costs compared with U.S. markets. The fund&#x2019;s 
overall foreign investing risk is increased to the extent it has exposure to emerging markets.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Activemanagement_S000002076Summary1Member"
      id="ixv-1113">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Active 
management:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  The fund&#x2019;s overall investment program and holdings selected by the fund&#x2019;s 
investment adviser may underperform the broad markets, relevant indices, or other funds with similar 
objectives and investment strategies.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:RiskTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_Cybersecuritybreaches_S000002076Summary1Member"
      id="ixv-1117">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;Cybersecurity breaches:&lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  The fund could be 
harmed by intentional cyberattacks and other cybersecurity breaches, including unauthorized access to 
the fund&#x2019;s assets, confidential information, or other proprietary information. In addition, a cybersecurity 
breach could cause one of the fund&#x2019;s service providers or financial intermediaries to suffer unauthorized 
data access, data corruption, or loss of operational functionality.&lt;/span&gt;&lt;/p&gt;</rr:RiskTextBlock>
    <rr:BarChartAndPerformanceTableHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143802">Performance</rr:BarChartAndPerformanceTableHeading>
    <rr:PerformanceNarrativeTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-1122">&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The 
following performance information provides some indication of the risks of investing in the fund. The 
fund&#x2019;s performance information represents only past performance (before and after taxes) and is not 
necessarily an indication of future results. &lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The following bar chart illustrates how much returns can differ 
from year to year by showing calendar year returns and the best and worst calendar quarter returns during 
those &lt;/span&gt;&lt;span style="font-size:8.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;years for the fund&#x2019;s Investor Class. Returns for other share classes vary since 
they have different expenses.&lt;/span&gt;&lt;/p&gt;</rr:PerformanceNarrativeTextBlock>
    <rr:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143803">The 
following performance information provides some indication of the risks of investing in the fund. The following bar chart illustrates how much returns can differ 
from year to year by showing calendar year returns and the best and worst calendar quarter returns during 
those  years for the fund&#x2019;s Investor Class. Returns for other share classes vary since 
they have different expenses. The following table shows 
the average annual total returns for each class of the fund that has been in operation for at least one 
full calendar year. The fund&#x2019;s performance information included in the table is compared with a regulatory 
required index that represents an overall securities market (Regulatory Benchmark). In addition, the 
table may also include one or more indexes that more closely aligns to the fund&#x2019;s investment strategy 
(Strategy Benchmark(s)).</rr:PerformanceInformationIllustratesVariabilityOfReturns>
    <rr:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143804"> The 
fund&#x2019;s performance information represents only past performance (before and after taxes) and is not 
necessarily an indication of future results.</rr:PerformancePastDoesNotIndicateFuture>
    <rr:BarChartHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143805">Calendar Year Returns</rr:BarChartHeading>
    <rr:BarChartClosingTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-1152">&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse" width="100%"&gt;&lt;tr style="font-size:1pt;"&gt;&lt;td style="width:9.02%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:14.01%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:14.99%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:13%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:.49%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:14.99%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:14.99%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:13%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:5.5%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Quarter Ended&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Total&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Return&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Quarter Ended&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Total &lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Return&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Best 
Quarter&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;12/31/20&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;20.94%&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;Worst Quarter&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;3/31/20&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; background-color:#E6E6E6;"&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:center; font-weight:normal; text-decoration:none;"&gt;-28.36%&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; font-size:1pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</rr:BarChartClosingTextBlock>
    <rr:HighestQuarterlyReturnLabel
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143806">Best 
Quarter</rr:HighestQuarterlyReturnLabel>
    <rr:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143807">2020-12-31</rr:BarChartHighestQuarterlyReturnDate>
    <rr:BarChartHighestQuarterlyReturn
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143808"
      unitRef="pure">0.2094</rr:BarChartHighestQuarterlyReturn>
    <rr:LowestQuarterlyReturnLabel
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143809">Worst Quarter</rr:LowestQuarterlyReturnLabel>
    <rr:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143810">2020-03-31</rr:BarChartLowestQuarterlyReturnDate>
    <rr:BarChartLowestQuarterlyReturn
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143811"
      unitRef="pure">-0.2836</rr:BarChartLowestQuarterlyReturn>
    <rr:PerformanceTableNarrativeTextBlock
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-1196">&lt;p style="-sec-ix-redline:true;font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The following table shows 
the average annual total returns for each class of the fund that has been in operation for at least one 
full calendar year. The fund&#x2019;s performance information included in the table is compared with a regulatory 
required index that represents an overall securities market (Regulatory Benchmark). In addition, the 
table may also include one or more indexes that more closely aligns to the fund&#x2019;s investment strategy 
(Strategy Benchmark(s)).&lt;/p&gt;&lt;p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;In addition, the table shows hypothetical after-tax returns to demonstrate how 
taxes paid by a shareholder may influence returns. After-tax returns 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. 
After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred 
arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class 
and will differ for other share classes.&lt;/p&gt;</rr:PerformanceTableNarrativeTextBlock>
    <rr:PerformanceTableUsesHighestFederalRate
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143812"> After-tax returns are calculated using the historical 
highest individual federal marginal income tax rates and do not reflect the impact of state and local 
taxes.</rr:PerformanceTableUsesHighestFederalRate>
    <rr:PerformanceTableNotRelevantToTaxDeferred
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143813"> Actual after-tax returns depend on an investor&#x2019;s tax situation and may differ from those shown. 
After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred 
arrangements, such as a 401(k) account or an IRA.</rr:PerformanceTableNotRelevantToTaxDeferred>
    <rr:PerformanceTableOneClassOfAfterTaxShown
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143814">After-tax returns are shown only for the Investor Class 
and will differ for other share classes.</rr:PerformanceTableOneClassOfAfterTaxShown>
    <rr:PerformanceTableHeading
      contextRef="Context_20241231_20241231_S000002076Member_S000002076Summary1Member"
      id="ixv-143815">Average 
Annual Total Returns Periods 
ended December 31, 2024</rr:PerformanceTableHeading>
    <rr:AverageAnnualReturnInceptionDate
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143816">1985-10-31</rr:AverageAnnualReturnInceptionDate>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143817"
      unitRef="pure">0.1188</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143818"
      unitRef="pure">0.0860</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnYear10
      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143819"
      unitRef="pure">0.0842</rr:AverageAnnualReturnYear10>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143820"
      unitRef="pure">0.0972</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143821"
      unitRef="pure">0.0689</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnYear10
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143822"
      unitRef="pure">0.0652</rr:AverageAnnualReturnYear10>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsAndSalesMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143823"
      unitRef="pure">0.0863</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsAndSalesMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143824"
      unitRef="pure">0.0657</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnYear10
      contextRef="Context_20241231_20241231_AfterTaxesOnDistributionsAndSalesMember_C000005436Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143825"
      unitRef="pure">0.0637</rr:AverageAnnualReturnYear10>
    <rr:AverageAnnualReturnInceptionDate
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143826">2015-12-17</rr:AverageAnnualReturnInceptionDate>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143827"
      unitRef="pure">0.1200</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143828"
      unitRef="pure">0.0872</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnSinceInception
      contextRef="Context_20241231_20241231_C000166330Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143829"
      unitRef="pure">0.1039</rr:AverageAnnualReturnSinceInception>
    <rr:AverageAnnualReturnInceptionDate
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143830">2000-03-31</rr:AverageAnnualReturnInceptionDate>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143831"
      unitRef="pure">0.1152</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143832"
      unitRef="pure">0.0828</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnYear10
      contextRef="Context_20241231_20241231_C000005437Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143833"
      unitRef="pure">0.0809</rr:AverageAnnualReturnYear10>
    <rr:AverageAnnualReturnInceptionDate
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143834">2002-09-30</rr:AverageAnnualReturnInceptionDate>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143835"
      unitRef="pure">0.1127</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnYear05
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143836"
      unitRef="pure">0.0799</rr:AverageAnnualReturnYear05>
    <rr:AverageAnnualReturnYear10
      contextRef="Context_20241231_20241231_C000005438Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143837"
      unitRef="pure">0.0781</rr:AverageAnnualReturnYear10>
    <rr:AverageAnnualReturnInceptionDate
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      id="ixv-143838">2021-02-22</rr:AverageAnnualReturnInceptionDate>
    <rr:AverageAnnualReturnYear01
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143839"
      unitRef="pure">0.1262</rr:AverageAnnualReturnYear01>
    <rr:AverageAnnualReturnSinceInception
      contextRef="Context_20241231_20241231_C000225772Member_S000002076Member_S000002076Summary1Member"
      decimals="INF"
      id="ixv-143840"
      unitRef="pure">0.0953</rr:AverageAnnualReturnSinceInception>
    <rr:AverageAnnualReturnLabel
      contextRef="Context_20241231_20241231_Russell3000Index_S000002076Member_S000002076Summary1Member"
      id="_155_">Russell 3000&#xae; 
Index </rr:AverageAnnualReturnLabel>
    <rr:AverageAnnualReturnLabel
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    <dei:EntityCentralIndexKey contextRef="Context_20241231_20241231" id="ixv-143871">0000775688</dei:EntityCentralIndexKey>
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    <dei:DocumentCreationDate contextRef="Context_20241231_20241231" id="ixv-143873">2025-02-25</dei:DocumentCreationDate>
    <dei:DocumentEffectiveDate contextRef="Context_20241231_20241231" id="ixv-143874">2025-03-01</dei:DocumentEffectiveDate>
    <dei:EntityInvCompanyType contextRef="Context_20241231_20241231" id="ixv-143875">N-1A</dei:EntityInvCompanyType>
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      contextRef="Context_20241231_20241231_C000005436Member_S000002076Member_S000002076Summary1Member"
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    <link:footnoteLink
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        <link:footnote id="fn1_" xlink:label="fn1_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;">Subject 
to certain exceptions and account minimums, accounts are charged an annual $20 fee.</xhtml:p></link:footnote>
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        <link:footnote id="fn2_" xlink:label="fn2_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;">Restated 
to show maximum 12b-1 fee rate of 0.25%. Actual rate for the prior fiscal year was 0.47%.</xhtml:p></link:footnote>
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        <link:footnote id="fn3_" xlink:label="fn3_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:8.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;">T. 
Rowe Price Associates, Inc., has contractually agreed to waive and/or bear all the Z Class&#x2019; expenses 
(excluding interest; expenses related to borrowings, taxes, and brokerage; nonrecurring, extraordinary 
expenses; and acquired fund fees and expenses) in their entirety. T. Rowe Price Associates, Inc., expects 
this fee waiver and/or expense reimbursement arrangement to remain in place indefinitely, and the agreement 
may only be amended or terminated with approval by the fund&#x2019;s Board of Directors.</xhtml:p></link:footnote>
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to new SEC Rules on shareholder reporting, the fund adopted a new broad-based securities market index, 
referred to as the Regulatory Benchmark.</xhtml:span></link:footnote>
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