v3.26.1
Investment Risks - World Mutual Funds Prospectus
Apr. 01, 2026
Emerging Markets Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
Emerging Markets Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
Emerging Markets Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries due to lower liquidity, market manipulation concerns, limited reliable access to capital, and differing company organizational structures. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets. Additionally, certain jurisdictions do not provide the Public Company Accounting Oversight Board (“PCAOB”) with sufficient access to inspect audit work papers and practices, or otherwise do not cooperate with U.S. regulators, potentially exposing investors in U.S. capital markets to significant risks.
Emerging Markets Fund | Frontier Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Frontier Emerging Markets Risk – The risks of investing in a frontier emerging market are magnified because they generally have smaller economies and less developed capital markets than traditional emerging markets. Unique risks include: potential for extreme price volatility and illiquidity, government control of certain industries or companies and limitations on foreign investment, economic and political instability, and relatively new and unsettled securities laws.
Emerging Markets Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
Emerging Markets Fund | Greater China Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Greater China Risk – Investing in Chinese securities is riskier than investing in U.S. securities. Investing in China involves risk of loss due to nationalization, expropriation, and confiscation of assets and property. Losses may also occur due to new or expanded restrictions on foreign investments or repatriation of capital. Due to Chinese governmental restrictions on foreign ownership of
companies in certain industries, Chinese operating companies often use variable interest entity (VIE) structures to raise capital from international investors. Shares of VIEs are not equity ownership interests in Chinese operating companies. The Chinese government has never explicitly approved these structures and thus could determine that the underlying contractual arrangements on which control of the VIE is based violate Chinese law. Such determination from the Chinese government could result in a loss in the value of an investment in a U.S.-listed company that utilizes the VIE structure. Additionally, the Chinese market is subject to less regulation and oversight than the U.S market. US regulators have limited ability to inspect international auditing standards of U.S. companies operating in China, thus there is substantially greater risk that disclosures will be incomplete or misleading and, in the event of investor harm, substantially less access to recourse.
Emerging Markets Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
Emerging Markets Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
Emerging Markets Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
Emerging Markets Fund | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Sector Risk – If the fund is overweighted in a stock or sector, any negative development related to that stock or sector will have a greater impact on the fund than other funds that are not overweighted in that stock or sector.
Emerging Markets Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
Emerging Markets Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of a fund’s shares may fluctuate significantly in the short term.
Emerging Markets Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
Emerging Markets Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
Focused Global Growth Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
Focused Global Growth Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – Securities denominated in foreign currencies are subject to currency risk, meaning that the fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
Focused Global Growth Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
Focused Global Growth Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
Focused Global Growth Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
Focused Global Growth Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
Focused Global Growth Fund | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Sector Risk – If the fund is overweighted in a stock or sector, any negative development related to that stock or sector will have a greater impact on the fund than other funds that are not overweighted in that stock or sector.
Focused Global Growth Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
Focused Global Growth Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
Focused Global Growth Fund | Focused Portfolio Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Focused Portfolio Risk – Investing in a limited number of companies carries more risk because changes in the value of a single company may have a more significant effect, either negative or positive, on the fund’s value.
Focused Global Growth Fund | REITs Risk Member  
Prospectus [Line Items]  
Risk [Text Block] REITs Risk – Investments in REITs are subject to credit risk and interest rate risk with respect to the loans made by the REITs in which the fund invests. Credit risk is the risk that the borrower will not be able to make interest and principal payments on the loan to the REIT when they are due. Interest rate risk is the risk that a change in the prevailing interest rate will cause the value of the loan portfolio held by the REIT to rise or fall.
Focused Global Growth Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
Focused Global Growth Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
Focused International Growth Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
Focused International Growth Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
Focused International Growth Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
Focused International Growth Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
Focused International Growth Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
Focused International Growth Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
Focused International Growth Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
Focused International Growth Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
Focused International Growth Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
Focused International Growth Fund | Focused Portfolio Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Focused Portfolio Risk – Investing in a limited number of companies carries more risk because changes in the value of a single company may have a more significant effect, either negative or positive on the fund’s value.
Focused International Growth Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
Focused International Growth Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
Global Small Cap Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
Global Small Cap Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
Global Small Cap Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
Global Small Cap Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
Global Small Cap Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
Global Small Cap Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
Global Small Cap Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes.To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
Global Small Cap Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
Global Small Cap Fund | Small-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small-Cap Stock Risk – Smaller companies may have limited financial resources, product lines, markets and have less publicly available information. These securities may trade less frequently and in more limited volumes than larger companies’ securities, leading to higher transaction costs. Smaller companies also may be more sensitive to changing economic conditions, and investments in smaller foreign companies may experience more price volatility.
Global Small Cap Fund | High Portfolio Turnover Risk Member  
Prospectus [Line Items]  
Risk [Text Block] High Portfolio Turnover Risk – The fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover may result in increased transaction costs to the fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities.
Global Small Cap Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
Global Small Cap Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
International Growth Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
International Growth Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
International Growth Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
International Growth Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
International Growth Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
International Growth Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
International Growth Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
International Growth Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
International Growth Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
International Growth Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
International Growth Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
International Opportunities Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
International Opportunities Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
International Opportunities Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
International Opportunities Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
International Opportunities Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
International Opportunities Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
International Opportunities Fund | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Sector Risk – If the fund is overweighted in a stock or sector, any negative development related to that stock or sector will have a greater impact on the fund than other funds that are not overweighted in that stock or sector.
International Opportunities Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
International Opportunities Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
International Opportunities Fund | Small-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small-Cap Stock Risk – Smaller companies may have limited financial resources, product lines, markets and have less publicly available information. These securities may trade less frequently and in more limited volumes than larger companies’ securities, leading to higher transaction costs. Smaller companies also may be more sensitive to changing economic conditions, and investments in smaller foreign companies may experience more price volatility.
International Opportunities Fund | High Portfolio Turnover Risk Member  
Prospectus [Line Items]  
Risk [Text Block] High Portfolio Turnover Risk – The fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover may result in increased transaction costs to the fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities.
International Opportunities Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
International Opportunities Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
International Small-Mid Cap Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
International Small-Mid Cap Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses based solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
International Small-Mid Cap Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
International Small-Mid Cap Fund | Growth Stocks Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Growth Stocks Risk – Investments in growth stocks may be more volatile than other stocks and the overall stock market. These stocks are typically priced higher than other stocks because of their growth potential, which may or may not be realized.
International Small-Mid Cap Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If at any time the market is not favoring the fund’s growth investment style, the fund’s gains may not be as big as, or its losses may be bigger than, those of other equity funds using different investment styles.
International Small-Mid Cap Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
International Small-Mid Cap Fund | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Sector Risk – If the fund is overweighted in a stock or sector, any negative development related to that stock or sector will have a greater impact on the fund than other funds that are not overweighted in that stock or sector.
International Small-Mid Cap Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
International Small-Mid Cap Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
International Small-Mid Cap Fund | Small-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small-Cap Stock Risk – Smaller companies may have limited financial resources, product lines, markets and have less publicly available information. These securities may trade less frequently and in more limited volumes than larger companies’ securities, leading to higher transaction costs. Smaller companies also may be more sensitive to changing economic conditions, and investments in smaller foreign companies may experience more price volatility.
International Small-Mid Cap Fund | High Portfolio Turnover Risk Member  
Prospectus [Line Items]  
Risk [Text Block] High Portfolio Turnover Risk – The fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover may result in increased transaction costs to the fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities.
International Small-Mid Cap Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
International Small-Mid Cap Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
International Value Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
International Value Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
International Value Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
International Value Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If the market does not consider the individual stocks purchased by the fund to be undervalued, the value of the fund’s shares may not rise as high as other funds and may in fact decline, even if stock prices generally are increasing.
International Value Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
International Value Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so in order to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor, a fund of funds or 529 college savings plan) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
International Value Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
International Value Fund | Small-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small-Cap Stock Risk – Smaller companies may have limited financial resources, product lines, markets and have less publicly available information. These securities may trade less frequently and in more limited volumes than larger companies’ securities, leading to higher transaction costs. Smaller companies also may be more sensitive to changing economic conditions, and investments in smaller foreign companies may experience more price volatility.
International Value Fund | Benchmark Correlation Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Benchmark Correlation Risk – The fund’s performance will be similar to the performance of its benchmark, the MSCI EAFE Value Index. If the fund’s benchmark goes down, it is likely that the fund’s performance will go down.
International Value Fund | Quantitative Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Quantitative Risk – Stocks selected by the portfolio managers using quantitative models may perform differently than expected due to the portfolio managers’ judgments regarding the factors used in the models, the weight placed on each factor, changes from the factors’ historical trends, and technical issues with the construction and implementation of the models (including, for example, data problems and/or software or other implementation issues). There is no guarantee that the use of the quantitative model will result in effective investment decisions for the fund. Additionally, the commonality of portfolio holdings across quantitative investment managers may amplify losses.
International Value Fund | Financial Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Financial Sector Risk – The fund may invest a significant portion of its assets in the financial sector and, therefore, the performance of the fund could be negatively impacted by events affecting this sector. This sector can be significantly affected by changes in interest rates, government regulation, the rate of defaults on corporate, consumer and government debt and the availability and cost of capital.
International Value Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
International Value Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.
Non-U.S. Intrinsic Value Fund | Foreign Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Risk – Foreign securities are generally riskier than U.S. securities. Political events (such as civil unrest, national elections and imposition of exchange controls), social and economic events (such as labor strikes and rising inflation), natural disasters and public health emergencies occurring in a country where the fund invests could cause the fund’s investments in that country to experience gains or losses. Securities of foreign issuers may be less liquid, more volatile and harder to value than U.S. securities.
Non-U.S. Intrinsic Value Fund | Currency Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Currency Risk – The fund could experience gains or losses solely on changes in the exchange rate between foreign currencies and the U.S. dollar.
Non-U.S. Intrinsic Value Fund | Emerging Markets Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Emerging Markets Risk – Investing in emerging market countries generally is riskier than investing in foreign developed countries. Emerging market countries may have unstable governments, economies that are subject to sudden change, and significant volatility in their financial markets. These countries also may lack the legal, business and social framework to support securities markets.
Non-U.S. Intrinsic Value Fund | Single Country Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Single Country Risk – Investing a significant portion of assets in one country or region makes the fund more dependent upon the political and economic circumstances of that particular country or region than a fund that is more widely diversified.
Non-U.S. Intrinsic Value Fund | Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Style Risk – If the market does not consider the individual stocks purchased by the fund to be undervalued, the value of the fund’s shares may not rise as high as other funds and may in fact decline, even if stock prices generally are increasing.
Non-U.S. Intrinsic Value Fund | Market Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Market Risk – The value of the fund’s shares will go up and down based on the performance of the companies whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund’s investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.
Non-U.S. Intrinsic Value Fund | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Sector Risk – From time to time, the fund may invest a significant portion of its assets in securities of companies conducting business in a related group of industries within an economic sector. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, making the fund more vulnerable to unfavorable developments in that economic sector.
Non-U.S. Intrinsic Value Fund | Redemption Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Redemption Risk – The fund may need to sell securities at times it would not otherwise do so to meet shareholder redemption requests. Selling securities to meet such redemptions may cause the fund to experience a loss, increase the fund’s transaction costs and/or have adverse tax consequences. Redemption activity can occur for many reasons, including shareholder reactions to market events or product changes. To the extent that a large shareholder (including the advisor, another account advised by the advisor or a fund of funds) invests in the fund, the fund may experience relatively large redemptions as such shareholder reallocates its assets.
Non-U.S. Intrinsic Value Fund | Price Volatility Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Price Volatility Risk – The value of the fund’s shares may fluctuate significantly in the short term.
Non-U.S. Intrinsic Value Fund | Small-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small-Cap Stock Risk – Smaller companies may have limited financial resources, product lines, markets and have less publicly available information. These securities may trade less frequently and in more limited volumes than larger companies’ securities, leading to higher transaction costs. Smaller companies also may be more sensitive to changing economic conditions, and investments in smaller foreign companies may experience more price volatility.
Non-U.S. Intrinsic Value Fund | Small Number Of Holdings Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Small Number of Holdings Risk – A fund with a small number of holdings may have greater exposure to those holdings which could increase potential price volatility compared to portfolios with a greater number of holdings.
Non-U.S. Intrinsic Value Fund | Depositary Receipts Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Depositary Receipts Risk – Investment in depositary receipts does not eliminate all the risks inherent in investing in securities of non-U.S. issuers. The market value of depositary receipts is dependent upon the market value of the underlying securities and fluctuations in the relative value of the currencies in which the depositary receipts and the underlying securities are quoted.
Non-U.S. Intrinsic Value Fund | Mid-Cap Stock Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Mid-Cap Stock Risk – The mid-sized companies in which the fund invests may present greater opportunities for capital growth than larger companies, but also may be more volatile and present greater risks.
Non-U.S. Intrinsic Value Fund | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Principal Loss Risk – At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.
Non-U.S. Intrinsic Value Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block]
An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.