Systematic Value Fund Investment Strategy - Systematic Value Fund	May 31, 2026
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial;font-size:12pt;font-weight:bold;">Principal Investment Strategies of the Fund</span>
Strategy Narrative [Text Block]	The Fund attempts to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in securities of value companies.For purposes of the Fund’s 80% investment policy, a company is considered to be a value company if it: (i) issues securities that are represented in a third-party value-style index or that are classified as a value company by a third-party vendor; or (ii) meets a relevant equity market measurement in at least one “value metric” similar to those commonly used by third-party index providers or third-party vendors in value classifications, such as earnings growth, price-to-earnings or sales growth, among others.The Fund invests primarily in equity securities of U.S. large- and mid-cap companies. Companies are determined to be large- or mid-cap based on the inclusion of their equity securities in the Russell 1000® Value Index, whose constituents are companies that exhibit certain value qualities, as defined by the index provider, such as lower price-to-book ratios and lower expected growth values. As of August 31, 2026, the median stock by market capitalization in the Index was approximately $16.101 million, and the largest stock was approximately $4.647 trillion. The size of the companies in the Index changes with market conditions and the composition of the Index. The equity securities in which the Fund invests include common stock, preferred stock, convertible securities, rights and warrants. The subadviser employs a proprietary, dynamic multi-factor approach to managing the Fund’s assets that is based on quantitative and qualitative research and analysis. In selecting securities, the subadviser seeks to allocate the Fund’s assets to equity securities that the subadviser believes share complementary factor exposures. Factors are characteristics that are important in explaining the returns and risks of a group of securities. Among the kinds of factors that the subadviser uses to select equity securities for the Fund are: (1) mean reversion (e.g., stocks that are inexpensive relative to their historical fundamentals); (2) trend following (e.g., strong momentum and higher growth potential); and (3) risk aversion (e.g., financially healthy, stable, and lower volatility companies). In exceptional circumstances, the subadviser may exclude, remove or include an issuer or security in the Fund where it believes the data available does not accurately reflect current events, or to adjust the risk profile of the Fund appropriately. The subadviser may engage in frequent and active trading of portfolio securities to achieve the Fund’s investment objective. In order to generate additional income, the Fund may lend portfolio securities to broker-dealers and other financial institutions provided that the value of the loaned securities does not exceed 30% of the Fund’s total assets. These loans earn income for the Fund and are collateralized by cash and securities issued or guaranteed by the U.S. Government or its agencies or instrumentalities.

Systematic Value Fund Investment Strategy - Systematic Value Fund

May 31, 2026

<span style="color:#000000;font-family:Arial;font-size:12pt;font-weight:bold;">Principal Investment Strategies of the Fund</span>

Strategy Narrative [Text Block]

The Fund attempts to achieve its investment objective by investing, under normal circumstances, at least 80% of its net assets in securities of value companies.For purposes of the Fund’s 80% investment policy, a company is considered to be a value company if it: (i) issues securities that are represented in a third-party value-style index or that are classified as a value company by a third-party vendor; or (ii) meets a relevant equity market measurement in at least one “value metric” similar to those commonly used by third-party index providers or third-party vendors in value classifications, such as earnings growth, price-to-earnings or sales growth, among others.The Fund invests primarily in equity securities of U.S. large- and mid-cap companies. Companies are determined to be large- or mid-cap based on the inclusion of their equity securities in the Russell 1000® Value Index, whose constituents are companies that exhibit certain value qualities, as defined by the index provider, such as lower price-to-book ratios and lower expected growth values. As of August 31, 2026, the median stock by market capitalization in the Index was approximately $16.101 million, and the largest stock was approximately $4.647 trillion. The size of the companies in the Index changes with market conditions and the composition of the Index. The equity securities in which the Fund invests include common stock, preferred stock, convertible securities, rights and warrants. The subadviser employs a proprietary, dynamic multi-factor approach to managing the Fund’s assets that is based on quantitative and qualitative research and analysis. In selecting securities, the subadviser seeks to allocate the Fund’s assets to equity securities that the subadviser believes share complementary factor exposures. Factors are characteristics that are important in explaining the returns and risks of a group of securities. Among the kinds of factors that the subadviser uses to select equity securities for the Fund are: (1) mean reversion (e.g., stocks that are inexpensive relative to their historical fundamentals); (2) trend following (e.g., strong momentum and higher growth potential); and (3) risk aversion (e.g., financially healthy, stable, and lower volatility companies). In exceptional circumstances, the subadviser may exclude, remove or include an issuer or security in the Fund where it believes the data available does not accurately reflect current events, or to adjust the risk profile of the Fund appropriately. The subadviser may engage in frequent and active trading of portfolio securities to achieve the Fund’s investment objective. In order to generate additional income, the Fund may lend portfolio securities to broker-dealers and other financial institutions provided that the value of the loaned securities does not exceed 30% of the Fund’s total assets. These loans earn income for the Fund and are collateralized by cash and securities issued or guaranteed by the U.S. Government or its agencies or instrumentalities.