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Taxes, Secondary Average Annual Return Inception Date Secondary Average Annual Returns, Inception Date Secondary Average Annual Return Label Label Average Annual Return Since Inception Since Inception Return Before Taxes, Secondary Average Annual Return Since Inception Secondary Average Annual Returns, Since Inception Secondary Average Annual Return Year 01 1 Year Average Annual Return Year 05 5 Years Average Annual Return Year 10 10 Years Bar Chart And Performance Table Heading Bar Chart and Performance Table [Heading] Bar Chart Closing [Text Block] Bar Chart Closing [Text Block] Bar Chart Does Not Reflect Sales Loads Bar Chart Does Not Reflect Sales Loads [Text] Bar Chart Heading Bar Chart [Heading] Bar Chart Highest Quarterly Return Highest Quarterly Return Bar Chart Highest Quarterly Return Date Highest Quarterly Return, Date Bar Chart Lowest Quarterly Return Lowest Quarterly Return Bar Chart Lowest Quarterly Return Date Lowest Quarterly Return, Date Bar Chart Table [Abstract] Bar 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Document Creation Date Document Creation Date Document [Domain] Prospectus Document Effective Date Document Effective Date Document Information Document [Axis] Document [Axis] Document Period End Date Document Period End Date Document Type Document Type Entity Central Index Key Central Index Key Entity [Domain] Series Entity Registrant Name Registrant Name Exchange Fee Exchange Fee Exchange Fee Over Redemption Exchange Fee Expense Breakpoint Discounts Expense Breakpoint Discounts [Text] Expense Breakpoint Minimum Investment Required Amount Expense Breakpoint, Minimum Investment Required [Amount] Expense Example [Abstract] Expense Example: Expense Example Heading Expense Example [Heading] Expense Example Narrative [Text Block] Expense Example Narrative [Text Block] Expense Example No Redemption [Abstract] Expense Example, No Redemption: Expense Example No Redemption By Year Caption Expense Example, No Redemption, By Year, Caption [Text] Expense Example No Redemption Table [Text Block] 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Restated To Reflect Current Expenses Restated to Reflect Current [Text] Fee Waiver Or Reimbursement Over Assets 5.06 Fee Waiver and Expense Reimbursement Fee Waiver and Expense Reimbursement 5.06 Fee Waiver Or Reimbursement Over Assets Date Of Termination Fee Waiver or Reimbursement over Assets, Date of Termination Highest Quarterly Return Label Highest Quarterly Return, Label Index No Deduction For Fees Expenses Taxes Index No Deduction for Fees, Expenses, Taxes [Text] Legal Entity [Axis] Series [Axis] Lowest Quarterly Return Label Lowest Quarterly Return, Label Management Fees Over Assets Management Fees Maximum Deferred Sales Charge Over Offering Price Maximum Deferred Sales Charge (Load) (as a percentag of net asset value) Maximum Deferred Sales Charge (Load) (as a percentage of net asset value) Maximum Sales Charge Imposed On Purchases Over Offering Price Maximum Sales Charge (Load) Imposed on Purchase (as a percentage of offering price) Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) Maximum Sales Charge On Reinvested Dividends And Distributions Over Other Maximum Sales Charge (Load) Imposed on Reinvested Dividends and Other Distributions (as a percentage o offering price) Maximum Sales Charge (Load) Imposed on Reinvested Dividends and Other Distributions (as a percentage of offering price) Net Expenses Over Assets Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursements Total Annual Fund Operating Expenses After Expense Reimbursement Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement Objective Heading Objective [Heading] Objective Primary [Text Block] Objective, Primary [Text Block] Objective Secondary [Text Block] Objective, Secondary [Text Block] Operating Expenses [Abstract] Operating Expenses: Operating Expenses Caption Operating Expenses Caption [Text] Other Expenses New Fund Based On Estimates Other Expenses, New Fund, Based on Estimates [Text] Other Expenses Over Assets Other Expenses Performance Availability Phone Performance Availability Phone [Text] Performance Availability Web Site Address Performance Availability Website Address [Text] Performance Information Illustrates Variability Of Returns Performance Information Illustrates Variability of Returns [Text] Performance Measure [Axis] Performance Measure [Axis] Performance Measure [Domain] Before Taxes Performance Narrative [Text Block] Performance Narrative [Text Block] Performance One Year Or Less Performance One Year or Less [Text] Performance Past Does Not Indicate Future Performance Past Does Not Indicate Future [Text] Performance Table Explanation After Tax Higher Performance Table Explanation after Tax Higher Performance Table Not Relevant To Tax Deferred Performance Table Not Relevant to Tax Deferred