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Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Portfolio Turnover, Rate Strategy [Heading] Strategy [Heading] Strategy Narrative [Text Block] Strategy Narrative [Text Block] Risk [Heading] Risk [Heading] Risk [Text Block] Risk [Text Block] Bar Chart and Performance Table [Heading] Bar Chart and Performance Table [Heading] Bar Chart [Heading] Bar Chart [Heading] Performance Narrative [Text Block] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance Information Illustrates Variability of Returns [Text] Bar Chart Does Not Reflect Sales Loads [Text] Bar Chart Does Not Reflect Sales Loads [Text] Performance Past Does Not Indicate Future [Text] Performance Past Does Not Indicate Future [Text] Performance Availability Website Address [Text] Performance Availability Website Address [Text] Performance Availability Phone [Text] Performance Availability Phone [Text] Annual Return 2015 Annual Return 2015 Annual Return 2016 Annual Return 2016 Annual Return 2017 Annual Return 2017 Annual Return 2018 Annual Return 2018 Annual Return 2019 Annual Return 2019 Annual Return 2020 Annual Return 2020 Annual Return 2021 Annual Return 2021 Annual Return 2022 Annual Return 2022 Annual Return 2023 Annual Return 2023 Annual Return 2024 Annual Return 2024 Bar Chart Closing [Text Block] Bar Chart Closing [Text Block] Highest Quarterly Return, Label Label Highest Quarterly Return, Date Highest Quarterly Return, Date Highest Quarterly Return Highest Quarterly Return Lowest Quarterly Return, Label Label Lowest Quarterly Return, Date Lowest Quarterly Return, Date Lowest Quarterly Return Lowest Quarterly Return Performance Table Heading Performance Table Heading Performance Table Narrative Performance Table Narrative Performance Table One Class of after Tax Shown [Text] Performance Table One Class of after Tax Shown [Text] Performance Table Uses Highest Federal Rate Performance Table Uses Highest Federal Rate Performance Table Not Relevant to Tax Deferred Performance Table Not Relevant to Tax Deferred Inception Date Inception Date 1 Year 1 Year 5 Years 5 Years 10 Years 10 Years Label Label Index No Deduction for Fees, Expenses, Taxes [Text] Index No Deduction for Fees, Expenses, Taxes [Text] Since Inception Since Inception Other Expenses, New Fund, Based on Estimates [Text] Other Expenses, New Fund, Based on Estimates [Text] Expenses Restated to Reflect Current [Text] Expenses Restated to Reflect Current [Text] Document [Axis] Document [Axis] Series [Axis] Series [Axis] Prospectus Prospectus Prospectus: Prospectus: Risk/Return: Risk/Return: Shareholder Fees [Table] Shareholder Fees [Table] Annual Fund Operating Expenses [Table] Annual Fund Operating Expenses [Table] Expense Example, With Redemption [Table] Expense Example, With Redemption [Table] Expense Example, No Redemption [Table] Expense Example, No Redemption [Table] Bar Chart [Table] Bar Chart [Table] Performance [Table] Performance [Table] Market Index Performance [Table] Market Index Performance [Table] Performance Measure [Axis] Performance Measure [Axis] Share Class [Axis] Share Class [Axis] Before Taxes Before Taxes After Taxes on Distributions After Taxes on Distributions After Taxes on Distributions and Sales After Taxes on Distributions and Sales Risk [Axis] Risk [Axis] All Risks [Member] All Risks [Member] Risk Lose Money [Member] Risk Lose Money [Member] Risk Not Insured [Member] Risk Not Insured [Member] Risk Nondiversified Status [Member] Risk Nondiversified Status [Member] Risk Not Insured Depository Institution [Member] Risk Not Insured Depository Institution [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] 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