| Adjustable Rate Securities Fund (IS and SS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Capital Income Fund (A, B, C, F, R, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Capital Reserves Fund - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Clover Small Value Fund (A, C, R, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Corporate Bond Fund (A, B, C, F, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Emerging Market Debt Fund (A, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Equity Advantage Fund (A and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Equity Income Fund, Inc. (A, B, C, F, R, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Global Allocation Fund (A, B, C, R, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Global Equity Fund (IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Global Small Cap Fund (IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Global Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Global Total Return Bond Fund (A, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Government Obligations Fund (SEL, IS, SS, ADM, CII, CS, CAP, TR, PRM, and AVR Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Government Obligations Tax-Managed Fund (AS, IS, and SS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Government Reserves Fund (A, B, C, F, and P Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Institutional High Yield Bond Fund (IS and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Institutional Money Market Management (IS, SS, CAP, and EAG Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Institutional Prime Obligations Fund (IS, SS, and CAP Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Institutional Prime Value Obligations Fund (IS, SS, and CAP Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Bond Strategy Portfolio - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Developed Equity Fund (IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Dividend Strategy Portfolio - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Leaders Fund (A, B, C, R, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Small-Mid Company Fund (A, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| International Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Kaufmann Fund (A, B, C, R, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Kaufmann Large Cap Fund (A, C, R, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Kaufmann Small Cap Fund (A, B, C, R, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT All Cap Core Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Balanced Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Large Cap Growth Fund (A, B, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Large Cap Value Fund (A, B, C, R, IS, SS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Mid Cap Growth Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Small Cap Core Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| MDT Small Cap Growth Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Max-Cap Index Fund (C, R, IS, and SS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Mid-Cap Index Fund (IS, SS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Muni and Stock Advantage Fund (A, B, C, F, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Municipal High Yield Advantage Fund (A, B, C, F, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Municipal Ultrashort Fund (A, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Prime Cash Obligations Fund (AS, R, WS, AVR, SS, CII, CS, CAP, and TR Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Prudent Bear Fund (A, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Real Return Bond Fund (A, C, and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| SDG Engagement Equity Fund (A and IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| SDG Engagement High Yield Credit Fund (IS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Select Total Return Bond Fund (IS and SS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Short-Intermediate Municipal Trust (A, IS, and SS Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Short-Intermediate Total Return Bond Fund (A, IS, SS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Strategic Income Fund (A, B, C, F, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Total Return Bond Fund (A, B, C, R, IS, SS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Ultrashort Bond Fund (A, IS, SS, and R6 Shares) - Statement of Additional Information (SAI) August 7 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | August 7 2020 | |
| Capital Income Fund (A, B, C, F, R, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Clover Small Value Fund (A, C, R, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Corporate Bond Fund (A, B, C, F, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Corporate Bond Strategy Portfolio - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Emerging Market Debt Fund (A, C, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Equity Advantage Fund (A and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Equity Income Fund, Inc. (A, B, C, F, R, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Floating Rate Strategic Income Fund (A, C, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Global Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Global Total Return Bond Fund (A, C, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| High Income Bond Fund II (P Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| High Income Bond Fund II (S Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| High Income Bond Fund, Inc. (A, B, C, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| High-Yield Strategy Portfolio - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Institutional High Yield Bond Fund (IS and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Intermediate Corporate Bond Fund (IS and SS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| International Bond Strategy Portfolio - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| International Dividend Strategy Portfolio - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| International Leaders Fund (A, B, C, R, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| International Small-Mid Company Fund (A, C, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| International Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Kaufmann Fund (A, B, C, R, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Kaufmann Fund II (P Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Kaufmann Fund II (S Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Kaufmann Large Cap Fund (A, C, R, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Kaufmann Small Cap Fund (A, B, C, R, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Managed Volatility Fund II (P Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Michigan Intermediate Municipal Fund (A and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Muni and Stock Advantage Fund (A, B, C, F, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Municipal Bond Fund, Inc. (A, B, C, F, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Municipal High Yield Advantage Fund (A, B, C, F, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Ohio Municipal Income Fund (A, F, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Opportunistic High Yield Bond Fund (A, C, IS, SS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Pennsylvania Municipal Income Fund (A and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Prudent Bear Fund (A, C, and IS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Quality Bond Fund II (P Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Quality Bond Fund II (S Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Short-Intermediate Municipal Fund (A, IS, and SS Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Short-Intermediate Total Return Bond Fund (A, IS, SS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Short-Term Income Fund (A, IS, SS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Strategic Income Fund (A, B, C, F, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Strategic Value Dividend Fund (A, C, IS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Total Return Bond Fund (A, B, C, R, IS, SS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Ultrashort Bond Fund (A, IS, SS, and R6 Shares) - Prospectus July 31 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 31 2020 | |
| Emerging Markets Equity Fund (IS Shares) - Statement of Additional Information (SAI) July 29 2020 | The Statement of Additional Information offers detailed information about the fund's policies, operations, management, investments and risks. | July 29 2020 | |
| Emerging Markets Equity Fund (IS Shares) - Prospectus July 29 2020 | The fund's Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 29 2020 | |
| Emerging Markets Equity Fund (IS Shares) - Summary Prospectus July 29 2020 | The fund's Summary Prospectus contains information including the fund's investment objective and strategies, principal investments, risks of investing in the fund, and sales charges, management fees and other expenses. | July 29 2020 | |