v3.24.4
Label Element Value
World Energy Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading WORLD ENERGY FUND
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

To seek growth and income.

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 World Energy 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 on 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 World Energy 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 161% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 161.00%
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 at least 80% of its net assets in a wide range of energy-related financial instruments issued in the U.S. and markets around the world. This policy will not be changed without at least 60 days prior notice to shareholders. Energy-related financial instruments may include foreign and domestic securities of issuers that derive more than fifty percent of their assets, revenue or income from activities related to the exploration, extraction, mining, research, development, conservation, refinement, production, transfer, transmission, and transportation of conventional, alternative, renewable and sustainable energy sources, as well as utilities, petrochemicals, plastics, and suppliers and servicers to such industries. Investments typically include a combination of common stock, bonds, exchange traded funds (“ETFs”) and exchange traded notes (“ETNs”) but may also include other asset types that are related to energy industry activities. The Fund’s energy-related financial instruments may include sponsored and unsponsored ADRs and GDRs. The Fund may also seek to provide exposure to the investment returns of commodities through investment in commodity-linked derivative instruments, commodity futures, options on commodity future contracts, and investment vehicles that focus on commodities such as ETFs that invest in commodities, commodity options and futures.

The Fund may engage in active and frequent trading.

Under normal market conditions, the Fund will invest at least 40%, but may invest up to 100%, of its net assets in the securities of issuers organized or having their principal place of business outside the U.S. or doing a substantial amount of business outside the U.S. The Fund will consider an issuer to be doing a substantial amount of business outside the U.S. if it derives more than 50% of its assets, revenue or income outside of the U.S. or is an international focused ETF or ETN. Under normal market conditions, the Fund invests in issuers from at least three different countries. The Adviser invests the Fund’s assets based on its judgment about issuers, risk, prices of securities, market conditions, potential returns, and other economic factors in the U.S. and around the world.

The Fund may invest in long and short positions in securities of issuers of any market capitalization, emerging market securities, American depositary receipts, European depositary receipts, global depositary receipts, and master limited partnerships (“MLPs”). The Fund may also invest in pooled investment vehicles, including other registered investment companies (“RICs”), ETNs and ETFs, including leveraged and inverse ETFs.

The Fund may invest in fixed income securities of any credit quality and maturity, including those of defaulted/distressed issuers. These securities can be rated below investment grade (“junk bonds” or high yield securities) and thus rated below Baa3 by Moody’s, BBB- by S&P or BBB- by Fitch Ratings Ltd. or unrated and securities in default. Fixed income investments may include foreign and domestic sovereign issued securities.

Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration under normal circumstances, the Fund invests at least 80% of its net assets in a wide range of energy-related financial instruments issued in the U.S. and markets around the world. This policy will not be changed without at least 60 days prior notice to shareholders.
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 and 5 years and since inception 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. 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, C 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 and 5 years and since inception 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 6.10%.

Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (Periods Ended 12/31/23)
Performance Table Market Index Changed rr_PerformanceTableMarketIndexChanged This table compares the Fund’s average annual total returns for periods ended December 31, 2023 to those of the S&P 500 Index and the MSCI World Energy Index.
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 Class 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 S&P 500 Index and the MSCI World Energy Index. The A Shares initially imposed a sales charge of 5.50% which was reduced to 3.50% on December 31, 2014 and then to 2.00% on December 26, 2017. 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 Class Shares and after-tax returns for other shares will vary.

World Energy 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.
World Energy 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.
World Energy 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.
World Energy Fund | Energy Industry Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Energy Industry Risk — Investment risks associated with investing in energy securities include price fluctuation caused by real and perceived inflationary trends and political developments, the cost assumed in complying with environmental regulation, changes in environmental regulation, energy conservation, demand for energy resources, fluctuations in energy prices, exploration and production spending, technological developments, depletion of resources, import controls, weather, world events and economic conditions.
World Energy Fund | Issuer Specific Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Issuer Specific Risk — The value of a security may decline for a number of reasons which directly relate to the issuer, such as management performance, earnings and sales trends, investor perceptions, financial leverage and reduced demand for the issuer’s goods or services.
World Energy Fund | Concentration Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Concentration Risk — The Fund’s concentration in energy-related industry securities may present more risks than would be the case with funds that diversify investments in numerous industries and sectors of the economy. A downturn in the energy sectors would have a larger impact on the World Energy Fund than on a fund that does not concentrate in these industries. Energy sector securities can be significantly affected by events related to political developments, energy conservation, commodity prices, and tax and government regulations. The performance of securities in the Fund may, at times, lag the performance of companies in other sectors or the broader market as a whole.
World Energy Fund | Commodity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Commodity Risk — The Fund’s exposure to commodities may subject the Fund to greater volatility than investments in traditional securities. The commodities markets may fluctuate widely based on a variety of factors, including changes in overall market movements, domestic and foreign political and economic events and policies, war, acts of terrorism, changes in domestic or foreign interest rates and/or investor expectations concerning interest rates, domestic and foreign inflation rates and investment and trading activities of mutual funds, hedge funds and commodities funds. Prices of various commodities may also be affected by factors such as weather, embargoes, tariffs and other regulatory developments. The prices of commodities can also fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Investments in commodity futures may be more volatile than the price of the underlying commodity.
World Energy Fund | Depositary Receipts Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Depositary Receipts Risk — Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition to investment risks associated with the underlying issuer, depositary receipts expose the Fund to additional risks associated with the non-uniform terms that apply to depositary receipt programs, credit exposure to the depository bank and to the sponsors and other parties with whom the depository bank establishes the programs, currency risk and the risk of an illiquid market for depositary receipts. The issuers of unsponsored depositary receipts are not obligated to disclose information that is, in the United States, considered material. Therefore, there may be less information available regarding these issuers and there may not be a correlation between such information and the market value of the depositary receipts.
World Energy Fund | Currency Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Currency Risk — The potential risk of loss from unfavorable changes in the exchange rates between the U.S. dollar and foreign currencies. Funds that invest directly in foreign currencies, or in securities that trade in, or receive revenues in, foreign currencies, or in derivatives that provide exposure to foreign currencies are subject to the risk that those currencies will decline in value relative to the U.S. dollar, or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged. Exchange rate volatility may affect the ability of an issuer to repay U.S. dollar denominated debt, thereby increasing credit risk.
World Energy Fund | Mid Cap Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Mid Cap Risk — The risk that the stocks of mid-capitalization companies often have greater price volatility, lower trading volume, and less liquidity than the stocks of larger, more established companies.
World Energy Fund | Small Cap Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Small Cap Risk — Small cap companies may be more vulnerable to adverse business or economic developments. They may also be less liquid and/or more volatile than securities of larger companies or the market averages in general. Small cap companies may be adversely affected during periods when investors prefer to hold securities of large capitalization companies.
World Energy 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.
World Energy 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.
World Energy Fund | Emerging Market Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Emerging Markets Risk — Risks associated with investing in emerging market securities include potentially restrictive political and economic structures and abrupt changes to those structures, changes in price visibility and liquidity in markets and securities, fluctuations in currency exchange rates, volatility in interest rates, and sudden changes in tax policy.
World Energy Fund | Foreign Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Foreign Investment Risk — The risk associated with higher transaction costs, delayed settlements, currency controls or adverse economic and political developments. This also includes the risk that fluctuations in the exchange rates between the U.S. dollar and foreign currencies may negatively affect an investment. Exchange rate volatility may affect the ability of an issuer to repay U.S. dollar denominated debt, thereby increasing credit risk. Foreign securities may also be affected by incomplete or inaccurate financial information on companies. There is a risk of loss attributable to social upheavals, unfavorable governmental or political actions, seizure of foreign deposits, changes in tax or trade statutes, and governmental collapse and war. These risks are more significant in emerging markets.
World Energy Fund | High Yield Securities Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  High Yield Securities Risk — Fixed income securities rated below investment grade and unrated securities of similar credit quality (commonly referred to as “junk bonds” or high yield securities) are regarded as being predominantly speculative as to the issuer’s ability to make payments of principal and interest. Investments in such securities involve substantial risk. Issuers of high yield securities may be highly leveraged and may not have available to them more traditional methods of financing. Therefore, the risks associated with acquiring the securities of such issuers generally are greater than is the case with investment grade securities. The value of high yield securities tends to be very volatile due to such factors as specific corporate developments, interest rate sensitivity, less secondary market activity, and negative perceptions of high yield securities and the junk bond markets generally, particularly in times of market stress.
World Energy 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.
World Energy Fund | Exchange Traded Note (ETN) Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Exchange Traded Note (ETN) Risk — Because ETNs are unsecured, unsubordinated debt securities; an investment in an ETN exposes the Fund to the risk that an ETN issuer’s credit rating may be downgraded. The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying securities’ markets, changes in the applicable interest rates and economic, legal, political, or geographic events that affect the referenced index. In addition, the Fund will bear its proportionate share of the fees and expenses of the ETN, which may cause the Fund’s operating expenses to be higher and its performance to be lower.
World Energy 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.
World Energy 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.
World Energy 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.
World Energy 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.
World Energy Fund | Master Limited Partnership Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock •  Master Limited Partnership Risk — The interests or “units” of an MLP are listed and traded on securities exchanges or in the over-the-counter market and their value fluctuates predominantly based on prevailing market conditions and the success of the MLP. MLPs carry many of the risks inherent in investing in a partnership. Unit holders of an MLP may not be afforded corporate protections to the same extent as shareholders of a corporation. In addition, unlike owners of common stock of a corporation, holders of common units of an MLP may have more limited control and limited rights to vote on matters affecting the MLP and have no ability to elect directors annually. In the event of liquidation, common units have preference over subordinated units, but not over debt or preferred units, to the remaining assets of the MLP.
World Energy 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.
World Energy Fund | S&P 500 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 S&P 500 Index (reflects no deduction for expenses, fees or taxes)
1 Year rr_AverageAnnualReturnYear01 24.23%
5 Years rr_AverageAnnualReturnYear05 13.73%
Since Inception rr_AverageAnnualReturnSinceInception 10.70%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy Fund | MSCI World Energy 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 MSCI World Energy Index (reflects no deduction for expenses, fees or taxes)
1 Year rr_AverageAnnualReturnYear01 3.53%
5 Years rr_AverageAnnualReturnYear05 11.11%
Since Inception rr_AverageAnnualReturnSinceInception 3.83%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy 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 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.10%
Other Expenses rr_OtherExpensesOverAssets 0.43%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.31%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.13%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 1.18%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 318
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 594
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 892
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,736
Label rr_AverageAnnualReturnLabel Return Before Taxes (With Load)
1 Year rr_AverageAnnualReturnYear01 2.49%
5 Years rr_AverageAnnualReturnYear05 14.83%
Since Inception rr_AverageAnnualReturnSinceInception 3.93%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy Fund | C 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 1.00% [1]
Management Fees rr_ManagementFeesOverAssets 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.58%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.21%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.28%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 1.93%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 196
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 664
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,159
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 2,522
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 3.82%
5 Years rr_AverageAnnualReturnYear05 14.42%
Since Inception rr_AverageAnnualReturnSinceInception 3.37%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy 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 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.58%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.46%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.28%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 1.18%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 120
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 434
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 771
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,722
Annual Return 2015 rr_AnnualReturn2015 (16.75%)
Annual Return 2016 rr_AnnualReturn2016 23.45%
Annual Return 2017 rr_AnnualReturn2017 (1.94%)
Annual Return 2018 rr_AnnualReturn2018 (24.51%)
Annual Return 2019 rr_AnnualReturn2019 7.68%
Annual Return 2020 rr_AnnualReturn2020 (0.02%)
Annual Return 2021 rr_AnnualReturn2021 36.64%
Annual Return 2022 rr_AnnualReturn2022 32.45%
Annual Return 2023 rr_AnnualReturn2023 4.57%
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 6.10%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 31.29%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (35.50%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.57%
5 Years rr_AverageAnnualReturnYear05 15.30%
Since Inception rr_AverageAnnualReturnSinceInception 4.12%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy Fund | Investor Shares | Return After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 4.18%
5 Years rr_AverageAnnualReturnYear05 14.80%
Since Inception rr_AverageAnnualReturnSinceInception 3.78%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy 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 2.97%
5 Years rr_AverageAnnualReturnYear05 12.23%
Since Inception rr_AverageAnnualReturnSinceInception 3.17%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
World Energy 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 0.60%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets
Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.58%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.21%
Less Fee Waivers rr_FeeWaiverOrReimbursementOverAssets (0.28%) [2]
Total Annual Fund Operating Expenses After Fee Waivers rr_NetExpensesOverAssets 0.93%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 95
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 356
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 638
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,441
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 4.93%
5 Years rr_AverageAnnualReturnYear05 15.60%
Since Inception rr_AverageAnnualReturnSinceInception 4.42%
Inception Date rr_AverageAnnualReturnInceptionDate Feb. 03, 2014
[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. In addition, while C Shares are offered at NAV, without any initial sales charge, a 1.00% CDSC may be charged on any C Shares upon which a dealer concession has been 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 0.90%, 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.