v3.24.4
Label Element Value
Limited Duration Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading LIMITED DURATION FUND
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

Primarily to seek income and

Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock secondarily to seek capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Limited Duration Fund. You may qualify for sales charge discounts if you and your family invest or agree to invest in the future, at least $200,000 in Cavanal Hill Funds. More information about these and other discounts is available from your financial professional and in the section “Initial Sales Charge (Bond and Equity Funds, Class A Shares Only)” on page 43 of the prospectus and “Contingent Deferred Sales Charges (CDSC-Class A and C Only)” on page 44 in the prospectus and in the section “Additional Purchase and Redemption Information” on page 34 of the Statement of Additional Information. An investor transacting in Institutional Shares, which do not have any front-end sales charge, contingent deferred sales charge, or other asset-based fee for sales or distribution, may be required to pay a commission to a broker or other financial intermediary for effecting such transactions on an agency basis. Such commissions are not reflected in the tables or the example below. Shares of the Fund are available in other share classes that have different fees and expenses.

Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment).
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Dec. 31, 2025
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Limited Duration 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 the most recent fiscal year, the Fund’s portfolio turnover rate was 18% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 18.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest or agree to invest in the future, at least $200,000 in Cavanal Hill Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 200,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
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. 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. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading] rr_StrategyHeading Principal Investment Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

To pursue its objective, under normal circumstances, the Fund invests primarily in debt obligations such as bonds, notes and debentures, and bills issued by U.S. corporations or by the U.S. government, its agencies or instrumentalities, municipal securities, mortgage-backed securities, asset-backed securities, and collateralized mortgage obligations and fixed income ETFs. Such debt obligations are “investment grade,” rated within the four highest ratings categories assigned by a nationally recognized statistical ratings organization or, if not rated, found by the Adviser under guidelines approved by the Trust’s Board of Trustees to be of comparable quality. The Fund also invests in money market instruments.

If the rating of a security is downgraded after purchase, the portfolio management team will determine whether it is in the best interest of the Fund’s shareholders to continue to hold the security. In making that determination, the factors considered at the time of purchase are reviewed. The Fund does not apply an automatic sale trigger.

In managing the portfolio, the portfolio management team searches for inefficiencies not only at the macro, or top down level, but also at the individual security level. Purchase and sale decisions are based on the Adviser’s judgment about issuers, risk, prices of securities, market conditions, potential returns, and other economic factors.

Under normal circumstances, the Fund invests at least 80% of its net assets in bonds and maintains an average portfolio duration of less than three and one-half years. These policies will not be changed without at least 60 days prior notice to shareholders. In addition, the Fund normally invests at least 65% of its net assets in interest-bearing bonds.

Duration provides a measure of a fund’s sensitivity to changes in interest-rates. In general, the longer a fund’s duration, the more its price will fluctuate when interest rates change. A fund with a duration of 10 years is twice as sensitive to interest rate changes as a fund with a five-year duration. A fund with a five-year duration would generally be expected to lose 5% from its net asset value if interest rates rose by one percentage point or gain 5% if interest rates fell by one percentage point.

Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal circumstances, the Fund invests at least 80% of its net assets in bonds and maintains an average portfolio duration of less than three and one-half years. These policies will not be changed without at least 60 days prior notice to shareholders. In addition, the Fund normally invests at least 65% of its net assets in interest-bearing bonds.
Risk [Heading] rr_RiskHeading Principal Investment Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and the performance table below illustrate some of the risks and return volatility of an investment 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 for 1, 5, and 10 years compare with those of a broad measure of market performance. The Fund’s past performance (before or after taxes) does not necessarily indicate how the Fund will perform in the future. Prior to December 30, 2016, the Fund was named the Short-Term Income Fund. Updated performance information may be obtained on the Fund’s website www.cavanalhillfunds.com or by calling 1-800-762-7085.

This bar chart shows changes in the Fund’s performance from year to year1. The returns for A Shares and Institutional Shares will differ from the returns for Investor Shares (which are shown in the bar chart) because of differences in the expenses of each class.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and the performance table below illustrate some of the risks and return volatility of an investment 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 for 1, 5, and 10 years compare with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-762-7085
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.cavanalhillfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before or after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns for Investor Shares (Periods Ended 12/31)
Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

1The performance information shown above is based on a calendar year. The Fund’s total return from 1/1/24 to 9/30/24 was 5.50%.

Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (Periods Ended 12/31/23)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate The stated returns assume the highest historical federal marginal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to investors holding shares through tax-deferred programs, such as IRA or 401(k) plans. After-tax returns are shown only for the Investor Shares and after-tax returns for other shares will vary.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown Actual after-tax returns depend on an investor’s tax situation and may differ from those shown.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock

This table compares the Fund’s average annual total returns for periods ended December 31, 2023, to those of the ICE BofA Merrill Lynch 1-5 Year U.S. Corporate/Government Index and the Bloomberg U.S. Aggregate Bond Index, which was added in response to rule changes with a compliance date of July 24, 2024. The ICE BofA Merrill Lynch 1-5 Year U.S. Corporate/Government Bond Index demonstrates how the Fund’s performance compares with the returns of indices with similar investment objectives, whereas the Bloomberg U.S. Aggregate Bond Index is a broad-based index, which provides a benchmark reflecting the overall U.S. fixed income market. The A Shares commenced operations on May 1, 2011 with a sales charge of 2.50% which was reduced to 2.00% on December 31, 2014. The stated returns assume the highest historical federal marginal income and capital gains tax rates. These after-tax returns do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors holding shares through tax-deferred programs, such as IRA or 401(k) plans. After-tax returns are shown only for the Investor Shares and after-tax returns for other shares will vary.

Limited Duration Fund | Risk Loss Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Loss of money is a risk of investing in the Fund.
Limited Duration Fund | Risk Not Insured Depository Institution [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Limited Duration Fund | Interest Rate Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Interest Rate Risk — The value of the Fund’s interest-bearing investments may decline due to an increase in interest rates. In general, the longer a security’s maturity, the greater the interest rate risk. For a portfolio with a duration of 3 years, each 1% rise in interest rates would reduce the value of the portfolio by an estimated 3%. The Fund’s yield may decrease due to a decline in interest rates. Very low or negative interest rates may magnify interest rate risk. Recent and any future declines in interest rate levels could cause the Fund’s earnings to fall below the Fund’s expense ratio, resulting in a negative yield and a decline in the Fund’s share price. Changing interest rates, including rates that fall below zero, may have unpredictable effects on markets, may result in heightened market volatility and may detract from Fund performance to the extent the Fund is exposed to such interest rates.
Limited Duration Fund | Credit Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Credit Risk — Credit risk is the possibility that the issuer of a debt instrument or a counterparty to an agreement fails to fulfill its obligations, reducing the Fund’s return. This includes failure by a bond issuer to repay interest and principal.
Limited Duration Fund | Liquidity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Liquidity Risk — Certain securities may be difficult or impossible to sell at the time and the price that would normally prevail in the market. The portfolio manager may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance. This includes the risk of missing out on an investment opportunity because the assets necessary to take advantage of it are tied up in less advantageous investments. If a Fund is required to sell securities quickly or at a particular time (including sales to meet redemption requests) the Fund could realize a loss.
Limited Duration Fund | Prepayment/Call Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Prepayment/Call Risk — There is a chance that the repayment of an asset-backed or mortgage-backed obligation will occur sooner than expected. Call risk is the possibility that, during periods of falling interest rates, a bond issuer will “call” — or repay — its bond before the bond’s maturity date.
Limited Duration Fund | Market Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Market Risk — The value of the Fund’s assets will fluctuate as the markets in which the Fund invests fluctuate. The value of the Fund’s investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other events, such as inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, military conflict, acts of terrorism, social unrest, environmental disasters, natural disasters or events, recessions, supply chain disruptions, political instability, and infectious disease epidemics or pandemics.
Limited Duration Fund | Mortgage-Backed Securities Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Mortgage-Backed Securities Risk — The value of the Fund’s mortgage-backed securities can fall if the owners of the underlying mortgages pay off their mortgages sooner than expected, which could happen when interest rates fall, or later than expected, which could happen when interest rates rise. If the underlying mortgages are paid off sooner than expected, the Fund may have to reinvest this money in mortgage-backed or other securities that have lower yields.
Limited Duration Fund | Collateralized Mortgage Obligations Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Collateralized Mortgage Obligations Risk — There are risks associated with collateralized mortgage obligations that relate to the risks of the underlying mortgage pass-through securities (i.e., an increase or decrease in prepayment rates, resulting from a decrease or increase in mortgage interest rates, will affect the yield, average life, and price of collateralized mortgage obligations).
Limited Duration Fund | Asset-Backed Securities Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Asset-Backed Securities Risk — Payment of interest and repayment of principal may be impacted by the cash flows generated by the assets backing asset-backed securities. The value of the Fund’s asset-backed securities may also be affected by changes in interest rates, the availability of information concerning the interests in and structure of the pools of purchase contracts, financing leases or sales agreements that are represented by these securities, the creditworthiness of the servicing agent for the pool, the originator of the loans or receivables, or the entities that provide any supporting letters of credit, surety bonds, or other credit enhancements.
Limited Duration Fund | Exchange Traded Fund (ETF) Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Exchange Traded Fund (ETF) Risk — The ETFs in which the Fund invests are subject to the risks applicable to the types of securities and investments used by the ETFs. Because an ETF charges its own fees and expenses, fund shareholders will indirectly bear these costs. The use of leverage in an ETF can magnify any price movements, resulting in high volatility. Due to daily rebalancing, leverage, and liquidity, inverse ETFs may perform worse than the inverse movement of the underlying referenced financial asset, index or commodity’s return.
Limited Duration Fund | Valuation Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Valuation Risk — The risk associated with the assessment of appropriate pricing in a changing market where trading information may not be readily available.
Limited Duration Fund | Portfolio Turnover Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Portfolio Turnover Risk — A Fund may engage in active and frequent trading to achieve its principal investment objectives. This may result in the realization and distribution to shareholders of higher capital gains as compared to a fund with less active trading policies, which would increase an investor’s tax liability unless shares are held through a tax deferred or exempt vehicle. Frequent trading also increases transaction costs, which could detract from a Fund’s performance.
Limited Duration Fund | Management Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Management Risk — There is no guarantee that the investment techniques and risk analyses used by the Fund’s portfolio managers will produce the desired results.
Limited Duration Fund | Regulatory Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Regulatory Risk — The risk that a change in laws or regulations will materially affect a security, business, sector or market. A change in laws or regulations made by the government or a regulatory body can increase the costs of operating a business, reduce the attractiveness of investment and/or change the competitive landscape. Regulatory risk also includes the risk associated with federal and state laws which may restrict the remedies that a lender has when a borrower defaults on loans. These laws include restrictions on foreclosures, redemption rights after foreclosure, federal and state bankruptcy and debtor relief laws, restrictions on “due on sale” clauses, and state usury laws.
Limited Duration Fund | ICE BofA Merrill Lynch 1-5 Year U.S. Corporate/Government Index (reflects no deduction for expenses, fees or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflects no deduction for expenses, fees or taxes
Label rr_AverageAnnualReturnLabel ICE BofA Merrill Lynch 1-5 Year U.S. Corporate/Government Index (reflects no deduction for expenses, fees or taxes)
1 Year rr_AverageAnnualReturnYear01 4.88%
5 Years rr_AverageAnnualReturnYear05 1.55%
10 Years rr_AverageAnnualReturnYear10 1.46%
Limited Duration Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for expenses, fees or taxes)  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes reflects no deduction for expenses, fees or taxes
Label rr_AverageAnnualReturnLabel Bloomberg U.S. Aggregate Bond Index (reflects no deduction for expenses, fees or taxes)
1 Year rr_AverageAnnualReturnYear01 5.53%
5 Years rr_AverageAnnualReturnYear05 1.10%
10 Years rr_AverageAnnualReturnYear10 1.81%
Limited Duration Fund | A Shares  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 2.00%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00% [1]
Management Fees rr_ManagementFeesOverAssets 0.15%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.10%
Other Expenses rr_OtherExpensesOverAssets 0.67%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.07%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.31%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 0.76%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 276
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 503
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 749
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,452
Label rr_AverageAnnualReturnLabel Return Before Taxes (With Load)
1 Year rr_AverageAnnualReturnYear01 3.18%
5 Years rr_AverageAnnualReturnYear05 0.83%
10 Years rr_AverageAnnualReturnYear10 0.98%
Limited Duration Fund | Investor Shares  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.15%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.82%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.22%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.47%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 0.75%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 77
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 341
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 625
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,436
Annual Return 2013 rr_AnnualReturn2013 0.67%
Annual Return 2014 rr_AnnualReturn2014 1.60%
Annual Return 2015 rr_AnnualReturn2015 0.51%
Annual Return 2016 rr_AnnualReturn2016 0.78%
Annual Return 2017 rr_AnnualReturn2017 1.43%
Annual Return 2018 rr_AnnualReturn2018 1.17%
Annual Return 2019 rr_AnnualReturn2019 4.01%
Annual Return 2020 rr_AnnualReturn2020 3.83%
Annual Return 2021 rr_AnnualReturn2021 (0.73%)
Annual Return 2022 rr_AnnualReturn2022 (5.78%)
Annual Return 2023 rr_AnnualReturn2023 5.39%
Year to Date Return, Label rr_YearToDateReturnLabel Fund’s total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 5.50%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 3.26%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (2.79%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.39%
5 Years rr_AverageAnnualReturnYear05 1.26%
10 Years rr_AverageAnnualReturnYear10 1.18%
Limited Duration Fund | Investor Shares | Return After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 4.15%
5 Years rr_AverageAnnualReturnYear05 0.42%
10 Years rr_AverageAnnualReturnYear10 0.47%
Limited Duration Fund | Investor Shares | Return After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 3.17%
5 Years rr_AverageAnnualReturnYear05 0.61%
10 Years rr_AverageAnnualReturnYear10 0.59%
Limited Duration Fund | Institutional Shares  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of original purchase price or redemption proceeds) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.15%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.82%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.97%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.47%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 0.50%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 51
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 262
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 490
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,147
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 5.64%
5 Years rr_AverageAnnualReturnYear05 1.48%
10 Years rr_AverageAnnualReturnYear10 1.43%
[1] Class A Shares are available with no front-end sales charge on investments of $200,000 or more. There is, however, a contingent deferred sales charge (CDSC) of 1.00% on any Class A Shares upon which a dealer concession was paid that are sold within one year of purchase.
[2] The Adviser has contractually agreed to waive fees payable to it or reimburse certain expenses so that expenses (other than extraordinary expenses and any Acquired Fund Fees and Expenses) for each Class do not exceed 0.50%, plus class-specific fees until December 31, 2025. Affiliates of the Adviser have contractually agreed to waive all Shareholder Servicing Fees to which they are entitled. The affiliate waivers result in a reduction of the Shareholder Servicing Fee paid by all purchasers of a Class to the extent shown in the table. Contractual waivers are in place for the period through December 31, 2025 and may only be terminated or modified with the approval of the Fund’s Board of Trustees.