S000031375 [Member] Investment Strategy - S000031375 [Member]	May 31, 2026
Prospectus [Line Items]
Strategy [Heading]	Principal Investment Strategies
Strategy Narrative [Text Block]	Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of small capitalization issuers. These companies have market capitalizations in the range of companies in the Russell 2000® Value Index (the Capitalization Index), which ranged between $6.4 million and $10.8 billion as of August 31, 2026. The market capitalization range and composition of companies in the Capitalization Index are subject to change. As such, the size of the companies in which the Fund invests may change. The Fund may continue to hold a security even if the company’s market capitalization is no longer within the range of the Capitalization Index. Under normal circumstances, the Fund also invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of “value” companies. The Fund considers “value” companies to be those companies that are either constituents of an index constructed by a third party to identify companies with various characteristics of value companies, or that have a higher book-to-price (B/P) ratio than the median ranked stock within the company’s Global Industry Classification Standard (GICS) sector, have a higher EBITDA/EV (earnings before interest, taxes, depreciation and amortization-to-enterprise value) or have a lower price-to-earnings ratio than the median ranked stock within the company’s GICS sector. The third-party broad-based index currently used to identify value companies is the Russell 3000® Value Index. The Fund invests substantially in securities of U.S. issuers. The Fund may at times emphasize one or more sectors in selecting its investments. As of its most recent fiscal year end, the Fund had an investment emphasis in the financials sector. The Fund may invest up to 25% of its net assets in foreign investments. The Fund also may invest in real estate investment trusts. The Fund may hold a small number of securities, consistent with its value investment approach. Generally, the Fund anticipates holding between 45 and 55 securities in its portfolio; however, the Fund may hold, at any time, more or fewer securities than noted in this range.

Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of small capitalization issuers. These companies have market capitalizations in the range of companies in the Russell 2000® Value Index (the Capitalization Index), which ranged between $6.4 million and $10.8 billion as of August 31, 2026. The market capitalization range and composition of companies in the Capitalization Index are subject to change. As such, the size of the companies in which the Fund invests may change. The Fund may continue to hold a security even if the company’s market capitalization is no longer within the range of the Capitalization Index. Under normal circumstances, the Fund also invests at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of “value” companies. The Fund considers “value” companies to be those companies that are either constituents of an index constructed by a third party to identify companies with various characteristics of value companies, or that have a higher book-to-price (B/P) ratio than the median ranked stock within the company’s Global Industry Classification Standard (GICS) sector, have a higher EBITDA/EV (earnings before interest, taxes, depreciation and amortization-to-enterprise value) or have a lower price-to-earnings ratio than the median ranked stock within the company’s GICS sector. The third-party broad-based index currently used to identify value companies is the Russell 3000® Value Index.

The Fund may invest up to 25% of its net assets in foreign investments. The Fund also may invest in real estate investment trusts. The Fund may hold a small number of securities, consistent with its value investment approach. Generally, the Fund anticipates holding between 45 and 55 securities in its portfolio; however, the Fund may hold, at any time, more or fewer securities than noted in this range.