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Heading Objective [Heading] Objective Primary [Text Block] Objective, Primary [Text Block] Operating Expenses [Abstract] Operating Expenses: Operating Expenses Caption Operating Expenses Caption [Text] Operating Expenses Column Name Operating Expenses Column [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 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