Investment Risks	Aug. 05, 2025
Scharf ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks: ◦Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments. ◦Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. Because securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs. ◦Trading. Although Shares are listed for trading on the Exchange and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. ◦Cash Transaction Risk. The Fund may effect a portion of its creations and redemptions for cash, rather than in-kind securities. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV.
Scharf ETF \| ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Scharf ETF \| ETF Risks, Costs Of Buying Or Selling Shares Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Scharf ETF \| ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. Because securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
Scharf ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although Shares are listed for trading on the Exchange and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares.
Scharf ETF \| ETF Risks, Cash Transaction Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Transaction Risk. The Fund may effect a portion of its creations and redemptions for cash, rather than in-kind securities. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV.
Scharf ETF \| General Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	and Market Risk.
Scharf ETF \| Equity Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Securities Risk. The value of the Fund’s shares will go up or down based on the movement of the overall stock market and the value of the individual securities held by the Fund, both of which can sometimes be volatile.
Scharf ETF \| Management Risk Member
Prospectus [Line Items]
Risk [Text Block]	Management Risk. The Fund is an actively managed portfolio. The Adviser’s management practices and investment strategies might not produce the desired results. The Adviser may be incorrect in its assessment of a stock’s appreciation potential.
Scharf ETF \| Model Risk Member
Prospectus [Line Items]
Risk [Text Block]	Model Risk. The Adviser may use proprietary models in identifying, evaluating and selecting securities for the Fund, and to weight the portfolio. These models generally use technology and software and rely on both internally developed data as well as third-party data. Technology implemented tools are subject to greater risks associated with computer hardware and software, including risks associated with cybersecurity events or software faults. Inaccurate or incomplete data, or improper application of data within a model, could limit the effectiveness of any quantitative tool. Models may be improperly constructed, or may rely on factors (such as historical market performance data) that may not be as relevant in current markets. The Fund could be adversely affected by the Adviser’s use of models in managing the Fund’s portfolio.
Scharf ETF \| Technology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Technology Risk. The Adviser uses a range of technology and software programs in managing the Fund. These include proprietary and third-party data and systems used to identify or evaluate securities or otherwise support portfolio managers. Software or hardware failures or faults, cyber events, incorrect programming, or inaccurate, incomplete or unreliable data could adversely affect the Adviser’s implementation of the investment strategy and the Fund’s performance.
Scharf ETF \| Foreign And Emerging Market Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign and Emerging Market Securities Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, greater volatility, civil conflicts and war, sanctions or other measures by the United States or other governments, liquidity risks, currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, and less stringent investor protection and disclosure standards of foreign markets. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.” Emerging market countries typically have less-established market economies than developed countries and may face greater social, economic, regulatory and political uncertainties. In addition, emerging markets typically present greater illiquidity and price volatility concerns due to smaller or limited local capital markets and greater difficulty in determining market valuations of securities due to limited public information on issuers.
Scharf ETF \| Depositary Receipt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Depositary Receipt Risk. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory and tax environments.
Scharf ETF \| Foreign Currency Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Currency Risk. Currency movements may negatively impact value even when there is no change in value of the security in the issuer’s home country. Currency management strategies may substantially change the Fund’s exposure to currency exchange rates and could result in losses to the Fund if currencies do not perform as the Adviser expects.
Scharf ETF \| Large-Sized Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Sized Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges like changes in consumer tastes or innovative smaller competitors. In addition, large-sized companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion.
Scharf ETF \| Small- And Medium-Sized Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Medium-Sized Company Risk. The Fund may invest in the securities of medium-sized companies. As a result, the Fund’s performance may be adversely affected if securities of medium-sized companies underperform securities of other capitalization ranges or the market as a whole. Securities of smaller companies trade in smaller volumes and are often more vulnerable to market volatility than securities of larger companies.
Scharf ETF \| Investment Style Risk Member
Prospectus [Line Items]
Risk [Text Block]	Investment Style Risk. The Adviser follows an investing style that favors relatively low valuations. At times when this style is out of favor, the Fund may underperform funds that follow different investing styles.
Scharf ETF \| Investment Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Investment Company Risk. When the Fund invests in an ETF or mutual fund, it will bear additional expenses based on its pro rata share of the ETF’s or mutual fund’s operating expenses, including the potential duplication of management fees. The risk of owning an ETF or mutual fund generally reflects the risks of owning the underlying securities the ETF or mutual fund holds. The Fund also will incur brokerage costs when it purchases ETFs. Investments in ETFs are also subject to the “ETF Risks” described above.
Scharf ETF \| Fixed-Income Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Fixed-Income Securities Risk. The following risks are associated with the Fund’s investment in fixed-income securities. ◦Prepayment and Extension Risk. The risk that the securities may be paid off earlier (prepayment) or later (extension) than expected. Either situation could cause securities to pay lower-than-market rates of interest, which could hurt the Fund’s yield or share price. ◦Interest Rate Risk. The Fund’s investments in fixed income securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value. ◦Credit Risk. Credit risk is the risk of loss on an investment due to the deterioration of an issuer’s financial health. Such a deterioration of financial health may result in a reduction of the credit rating of the issuer’s securities and may lead to the issuer’s inability to honor its contractual obligations including making timely payment of interest and principal.
Scharf ETF \| Fixed-Income Securities Risk, Prepayment And Extension Risk Member
Prospectus [Line Items]
Risk [Text Block]	Prepayment and Extension Risk. The risk that the securities may be paid off earlier (prepayment) or later (extension) than expected. Either situation could cause securities to pay lower-than-market rates of interest, which could hurt the Fund’s yield or share price.
Scharf ETF \| Fixed-Income Securities Risk, Interest Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	Interest Rate Risk. The Fund’s investments in fixed income securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value.
Scharf ETF \| Fixed-Income Securities Risk, Credit Risk Member
Prospectus [Line Items]
Risk [Text Block]	Credit Risk. Credit risk is the risk of loss on an investment due to the deterioration of an issuer’s financial health. Such a deterioration of financial health may result in a reduction of the credit rating of the issuer’s securities and may lead to the issuer’s inability to honor its contractual obligations including making timely payment of interest and principal.
Scharf ETF \| High-Yield Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	High-Yield Securities Risk. Fixed-income securities that are rated below investment grade (i.e., “junk bonds”) are subject to additional risk factors due to the speculative nature of these securities, such as increased possibility of default liquidation of the security, and changes in value based on public perception of the issuer.
Scharf ETF \| Municipal Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Municipal Securities Risk. Municipal securities rely on the creditworthiness or revenue production of their issuers or auxiliary credit enhancement features. Municipal securities may be difficult to obtain because of limited supply, which may increase the cost of such securities and effectively reduce a portfolio’s yield. Typically, less information is available about a municipal issuer than is available for other types of securities issuers.
Scharf ETF \| Asset-Backed Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Asset-Backed Securities Risk. Asset-backed securities are subject to certain risks including prepayment and call risks. When an obligation is prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. In periods of rising interest rates, the Fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the Fund may exhibit additional volatility. During periods of difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid.
Scharf ETF \| Mortgage-Backed Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mortgage-Backed Securities Risk. In addition to the general risks associated with fixed-income securities as described above, the structure of certain mortgage-backed securities may make their reaction to interest rates and other factors difficult to predict, which may cause their prices to be more volatile than other fixed-income securities.
Scharf ETF \| Exchange-Traded Note Risk Member
Prospectus [Line Items]
Risk [Text Block]	Exchange-Traded Note Risk. 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 the underlying securities’ markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced index. In addition, the notes issued by ETNs and held by the Fund are unsecured debt of the issuer.
Scharf ETF \| Bank Debt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Bank Debt Risk. The Fund’s investments in secured and unsecured assignments of bank debt may create substantial risk. In making investments in such debt, which are loans made by banks or other financial intermediaries to borrowers, the Fund will depend primarily upon the creditworthiness of the borrower for payment of principal and interest.
Scharf ETF \| Inflation Protected Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Inflation Protected Securities Risk. The value of inflation protected securities generally will fluctuate in response to changes in “real” interest rates, generally decreasing when real interest rates rise and increasing when real interest rates fall. Real interest rates represent nominal (or stated) interest rates reduced by the expected impact of inflation. In addition, interest payments on inflation-indexed securities will generally vary up or down along with the rate of inflation.
Scharf ETF \| Convertible Bond Risk Member
Prospectus [Line Items]
Risk [Text Block]	Convertible Bond Risk. Convertible bonds are hybrid securities that have characteristics of both bonds and common stocks and are therefore subject to both debt security risks and equity risk. Convertible bonds are subject to equity risk especially when their conversion value is greater than the interest and principal value of the bond. The prices of equity securities may rise or fall because of economic or political changes and may decline over short or extended periods of time.
Scharf ETF \| Rule 144A Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Rule 144A Securities Risk. The market for Rule 144A securities typically is less active than the market for publicly-traded securities. Rule 144A securities carry the risk that the liquidity of these securities may become impaired, making it more difficult for the Fund to sell these securities.
Scharf ETF \| Special Situations Risk Member
Prospectus [Line Items]
Risk [Text Block]	Special Situations Risk. There is a risk that the special situation (i.e., spin-off, liquidation, merger, etc.) might not occur, which could have a negative impact on the price of the issuer’s securities and fail to produce gains or produce a loss for the Fund. In addition, investments in special situation companies may be illiquid and difficult to value, which will require the Fund to employ fair value procedures to value its holdings in such investments.
Scharf ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	The Fund cannot guarantee that it will achieve its investment objectives.
Scharf ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.
Scharf Global Opportunity ETF \| ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	ETF Risks. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks: ◦Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions. ◦Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments. ◦Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. Because securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs. ◦Trading. Although Shares are listed for trading on the Exchange and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. ◦Cash Transaction Risk. The Fund may effect a portion of its creations and redemptions for cash, rather than in-kind securities. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV.
Scharf Global Opportunity ETF \| ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Scharf Global Opportunity ETF \| ETF Risks, Costs Of Buying Or Selling Shares Risk Member
Prospectus [Line Items]
Risk [Text Block]	Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
Scharf Global Opportunity ETF \| ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member
Prospectus [Line Items]
Risk [Text Block]	Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. Because securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
Scharf Global Opportunity ETF \| ETF Risks, Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Trading. Although Shares are listed for trading on the Exchange and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares.
Scharf Global Opportunity ETF \| ETF Risks, Cash Transaction Risk Member
Prospectus [Line Items]
Risk [Text Block]	Cash Transaction Risk. The Fund may effect a portion of its creations and redemptions for cash, rather than in-kind securities. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV.
Scharf Global Opportunity ETF \| General Market Risk Member
Prospectus [Line Items]
Risk [Text Block]	Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in a Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including: inflation (or expectations for inflation); deflation (or expectations for deflation); interest rates; global demand for particular products or resources; natural disasters or events; pandemic diseases; terrorism; 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, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
Scharf Global Opportunity ETF \| Equity Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Equity Securities Risk. The value of the Fund’s shares will go up or down based on the movement of the overall stock market and the value of the individual securities held by the Fund, both of which can sometimes be volatile.
Scharf Global Opportunity ETF \| Management Risk Member
Prospectus [Line Items]
Risk [Text Block]	Management Risk. The Fund is an actively managed portfolio. The Adviser’s management practices and investment strategies might not produce the desired results. The Adviser may be incorrect in its assessment of a stock’s appreciation potential.
Scharf Global Opportunity ETF \| Model Risk Member
Prospectus [Line Items]
Risk [Text Block]	Model Risk. The Adviser may use proprietary models in identifying, evaluating and selecting securities for the Fund, and to weight the portfolio. These models generally use technology and software and rely on both internally developed data as well as third-party data. Technology implemented tools are subject to greater risks associated with computer hardware and software, including risks associated with cybersecurity events or software faults. Inaccurate or incomplete data, or improper application of data within a model, could limit the effectiveness of any quantitative tool. Models may be improperly constructed, or may rely on factors (such as historical market performance data) that may not be as relevant in current markets. The Fund could be adversely affected by the Adviser’s use of models in managing the Fund’s portfolio.
Scharf Global Opportunity ETF \| Technology Risk Member
Prospectus [Line Items]
Risk [Text Block]	Technology Risk. The Adviser uses a range of technology and software programs in managing the Fund. These include proprietary and third-party data and systems used to identify or evaluate securities or otherwise support portfolio managers. Software or hardware failures or faults, cyber events, incorrect programming, or inaccurate, incomplete or unreliable data could adversely affect the Adviser’s implementation of the investment strategy and the Fund’s performance.
Scharf Global Opportunity ETF \| Foreign And Emerging Market Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign and Emerging Market Securities Risk. Investments in foreign currencies and foreign issuers are subject to additional risks, including political and economic risks, greater volatility, civil conflicts and war, sanctions or other measures by the United States or other governments, liquidity risks, currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, expropriation and nationalization risks, and less stringent investor protection and disclosure standards of foreign markets. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in countries in “emerging markets.” Emerging market countries typically have less-established market economies than developed countries and may face greater social, economic, regulatory and political uncertainties. In addition, emerging markets typically present greater illiquidity and price volatility concerns due to smaller or limited local capital markets and greater difficulty in determining market valuations of securities due to limited public information on issuers.
Scharf Global Opportunity ETF \| Depositary Receipt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Depositary Receipt Risk. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory and tax environments.
Scharf Global Opportunity ETF \| Foreign Currency Risk Member
Prospectus [Line Items]
Risk [Text Block]	Foreign Currency Risk. Currency movements may negatively impact value even when there is no change in value of the security in the issuer’s home country. Currency management strategies may substantially change the Fund’s exposure to currency exchange rates and could result in losses to the Fund if currencies do not perform as the Adviser expects.
Scharf Global Opportunity ETF \| Large-Sized Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large-Sized Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges like changes in consumer tastes or innovative smaller competitors. In addition, large-sized companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion.
Scharf Global Opportunity ETF \| Investment Style Risk Member
Prospectus [Line Items]
Risk [Text Block]	Investment Style Risk. The Adviser follows an investing style that favors relatively low valuations. At times when this style is out of favor, the Fund may underperform funds that follow different investing styles.
Scharf Global Opportunity ETF \| Investment Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Investment Company Risk. When the Fund invests in an ETF or mutual fund, it will bear additional expenses based on its pro rata share of the ETF’s or mutual fund’s operating expenses, including the potential duplication of management fees. The risk of owning an ETF or mutual fund generally reflects the risks of owning the underlying securities the ETF or mutual fund holds. The Fund also will incur brokerage costs when it purchases ETFs. Investments in ETFs are also subject to the “ETF Risks” described above.
Scharf Global Opportunity ETF \| Fixed-Income Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Fixed-Income Securities Risk. The following risks are associated with the Fund’s investment in fixed-income securities. ◦Prepayment and Extension Risk. The risk that the securities may be paid off earlier (prepayment) or later (extension) than expected. Either situation could cause securities to pay lower-than-market rates of interest, which could hurt the Fund’s yield or share price. ◦Interest Rate Risk. The Fund’s investments in fixed income securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value. ◦Credit Risk. Credit risk is the risk of loss on an investment due to the deterioration of an issuer’s financial health. Such a deterioration of financial health may result in a reduction of the credit rating of the issuer’s securities and may lead to the issuer’s inability to honor its contractual obligations including making timely payment of interest and principal.
Scharf Global Opportunity ETF \| Fixed-Income Securities Risk, Prepayment And Extension Risk Member
Prospectus [Line Items]
Risk [Text Block]	Prepayment and Extension Risk. The risk that the securities may be paid off earlier (prepayment) or later (extension) than expected. Either situation could cause securities to pay lower-than-market rates of interest, which could hurt the Fund’s yield or share price.
Scharf Global Opportunity ETF \| Fixed-Income Securities Risk, Interest Rate Risk Member
Prospectus [Line Items]
Risk [Text Block]	Interest Rate Risk. The Fund’s investments in fixed income securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value.
Scharf Global Opportunity ETF \| Fixed-Income Securities Risk, Credit Risk Member
Prospectus [Line Items]
Risk [Text Block]	Credit Risk. Credit risk is the risk of loss on an investment due to the deterioration of an issuer’s financial health. Such a deterioration of financial health may result in a reduction of the credit rating of the issuer’s securities and may lead to the issuer’s inability to honor its contractual obligations including making timely payment of interest and principal.
Scharf Global Opportunity ETF \| High-Yield Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	High-Yield Securities Risk. Fixed-income securities that are rated below investment grade (i.e., “junk bonds”) are subject to additional risk factors due to the speculative nature of these securities, such as increased possibility of default liquidation of the security, and changes in value based on public perception of the issuer.
Scharf Global Opportunity ETF \| Municipal Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Municipal Securities Risk. Municipal securities rely on the creditworthiness or revenue production of their issuers or auxiliary credit enhancement features. Municipal securities may be difficult to obtain because of limited supply, which may increase the cost of such securities and effectively reduce a portfolio’s yield. Typically, less information is available about a municipal issuer than is available for other types of securities issuers.
Scharf Global Opportunity ETF \| Asset-Backed Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Asset-Backed Securities Risk. Asset-backed securities are subject to certain risks including prepayment and call risks. When an obligation is prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. In periods of rising interest rates, the Fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the Fund may exhibit additional volatility. During periods of difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid.
Scharf Global Opportunity ETF \| Mortgage-Backed Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Mortgage-Backed Securities Risk. In addition to the general risks associated with fixed-income securities as described above, the structure of certain mortgage-backed securities may make their reaction to interest rates and other factors difficult to predict, which may cause their prices to be more volatile than other fixed-income securities.
Scharf Global Opportunity ETF \| Exchange-Traded Note Risk Member
Prospectus [Line Items]
Risk [Text Block]	Exchange-Traded Note Risk. 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 the underlying securities’ markets, changes in the applicable interest rates, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the referenced index. In addition, the notes issued by ETNs and held by the Fund are unsecured debt of the issuer.
Scharf Global Opportunity ETF \| Bank Debt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Bank Debt Risk. The Fund’s investments in secured and unsecured assignments of bank debt may create substantial risk. In making investments in such debt, which are loans made by banks or other financial intermediaries to borrowers, the Fund will depend primarily upon the creditworthiness of the borrower for payment of principal and interest.
Scharf Global Opportunity ETF \| Inflation Protected Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Inflation Protected Securities Risk. The value of inflation protected securities generally will fluctuate in response to changes in “real” interest rates, generally decreasing when real interest rates rise and increasing when real interest rates fall. Real interest rates represent nominal (or stated) interest rates reduced by the expected impact of inflation. In addition, interest payments on inflation-indexed securities will generally vary up or down along with the rate of inflation.
Scharf Global Opportunity ETF \| Convertible Bond Risk Member
Prospectus [Line Items]
Risk [Text Block]	Convertible Bond Risk. Convertible bonds are hybrid securities that have characteristics of both bonds and common stocks and are therefore subject to both debt security risks and equity risk. Convertible bonds are subject to equity risk especially when their conversion value is greater than the interest and principal value of the bond. The prices of equity securities may rise or fall because of economic or political changes and may decline over short or extended periods of time.
Scharf Global Opportunity ETF \| Rule 144A Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Rule 144A Securities Risk. The market for Rule 144A securities typically is less active than the market for publicly-traded securities. Rule 144A securities carry the risk that the liquidity of these securities may become impaired, making it more difficult for the Fund to sell these securities.
Scharf Global Opportunity ETF \| Special Situations Risk Member
Prospectus [Line Items]
Risk [Text Block]	Special Situations Risk. There is a risk that the special situation (i.e., spin-off, liquidation, merger, etc.) might not occur, which could have a negative impact on the price of the issuer’s securities and fail to produce gains or produce a loss for the Fund. In addition, investments in special situation companies may be illiquid and difficult to value, which will require the Fund to employ fair value procedures to value its holdings in such investments.
Scharf Global Opportunity ETF \| Medium-Sized Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	Medium-Sized Company Risk. The Fund may invest in the securities of mid-sized companies. As a result, the Fund’s performance may be adversely affected if securities of mid-sized companies underperform securities of other capitalization ranges or the market as a whole. Securities of smaller companies trade in smaller volumes and are often more vulnerable to market volatility than securities of larger companies.
Scharf Global Opportunity ETF \| Small-Sized Company Risk Member
Prospectus [Line Items]
Risk [Text Block]	•Small-Sized Company Risk. The securities of small-sized companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of larger capitalization companies. The securities of small-sized companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than larger capitalization stocks or the stock market as a whole. There is typically less publicly available information concerning smaller capitalization companies than for larger, more established companies.
Scharf Global Opportunity ETF \| Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	Losing all or a portion of your investment is a risk of investing in the Fund.
Scharf Global Opportunity ETF \| Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio. This may increase the Fund’s volatility and cause the performance of a relatively smaller number of issuers to have a greater impact on the Fund’s performance.

Investment Risks

Aug. 05, 2025

ETF Risks. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

◦Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

◦Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

◦Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant. Because securities held by the Fund may trade on foreign exchanges that are closed when the Fund’s primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.

◦Trading. Although Shares are listed for trading on the Exchange and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares.

◦Cash Transaction Risk. The Fund may effect a portion of its creations and redemptions for cash, rather than in-kind securities. The Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. The use of cash creations and redemptions may also cause the Fund’s shares to trade in the market at wider bid-ask spreads or greater premiums or discounts to the Fund’s NAV.

Scharf ETF | ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member