| Shareholder Report | 12 Months Ended |
| Jul. 31, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Federated Hermes MDT Series |
| Entity Central Index Key | 0001363526 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jul. 31, 2024 |
| C000035049 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Large Cap Growth Fund |
| Class Name | Class A Shares |
| Trading Symbol | QALGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Large Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B19"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A Shares $113 0.99% |
| Expenses Paid, Amount | $ 113 |
| Expense Ratio, Percent | 0.99% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 1000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stocks of large-sized U.S. companies. Top Contributors to Performance ■ An underweight position in companies with negative analyst conviction and flat to worsening earnings to price ratio contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Industrials aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA and Vistra Corp. and an underweight position in Tesla, Inc. Top Detractors from Performance ■ Poor stock selection among companies with a strong 1-year return, very high analyst conviction, and low structural earnings detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples and Financials detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Zscaler, Inc. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class A Shares with sales load Russell 3000 ® Morningstar Large Growth Funds Average Russell 1000 Growth Index 7/31/2014 $9,450 $10,000 $10,000 $10,000 7/31/2015 $10,322 $11,128 $11,427 $11,608 7/31/2016 $9,948 $11,623 $11,380 $12,113 7/31/2017 $11,507 $13,498 $13,364 $14,299 7/31/2018 $14,658 $15,711 $16,073 $17,566 7/31/2019 $16,311 $16,819 $17,541 $19,467 7/31/2020 $20,700 $18,657 $21,565 $25,275 7/31/2021 $27,945 $25,882 $29,229 $34,546 7/31/2022 $25,450 $23,979 $23,887 $30,426 7/31/2023 $30,173 $27,013 $27,296 $35,692 7/31/2024 $38,998 $32,705 $33,673 $45,306 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class A Shares with sales load 22.12% 17.71% 14.58% Class A Shares without sales load 29.25% 19.05% 15.23% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Morningstar Large Growth Funds Average 23.31% 13.95% 12.92% Russell 1000 Growth Index 26.94% 18.40% 16.31% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,507,393,159 |
| Holdings Count | Holding | 101 |
| Advisory Fees Paid, Amount | $ 4,997,886 |
| InvestmentCompanyPortfolioTurnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,507,393,159 Number of Investments 101 Portfolio Turnover 58% Total Advisory Fees Paid $4,997,886 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.7% Materials 1.0% Industrials 3.4% Consumer Staples 4.6% Financials 6.5% Health Care 8.6% Consumer Discretionary 12.7% Communication Services 12.8% Information Technology 47.4% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035050 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Large Cap Growth Fund |
| Class Name | Class C Shares |
| Trading Symbol | QCLGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Large Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B47"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C Shares $199 1.74% |
| Expenses Paid, Amount | $ 199 |
| Expense Ratio, Percent | 1.74% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 1000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stocks of large-sized U.S. companies. Top Contributors to Performance ■ An underweight position in companies with negative analyst conviction and flat to worsening earnings to price ratio contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Industrials aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA and Vistra Corp. and an underweight position in Tesla, Inc. Top Detractors from Performance ■ Poor stock selection among companies with a strong 1-year return, very high analyst conviction, and low structural earnings detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples and Financials detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Zscaler, Inc. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class C Shares Russell 3000 ® Morningstar Large Growth Funds Average Russell 1000 Growth Index 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,843 $11,128 $11,427 $11,608 7/31/2016 $10,366 $11,623 $11,380 $12,113 7/31/2017 $11,903 $13,498 $13,364 $14,299 7/31/2018 $15,048 $15,711 $16,073 $17,566 7/31/2019 $16,623 $16,819 $17,541 $19,467 7/31/2020 $20,942 $18,657 $21,565 $25,275 7/31/2021 $28,064 $25,882 $29,229 $34,546 7/31/2022 $25,370 $23,979 $23,887 $30,426 7/31/2023 $30,079 $27,013 $27,296 $35,692 7/31/2024 $38,876 $32,705 $33,673 $45,306 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class C Shares with sales load 27.27% 18.17% 14.54% Class C Shares without sales load 28.27% 18.17% 14.54% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Morningstar Large Growth Funds Average 23.31% 13.95% 12.92% Russell 1000 Growth Index 26.94% 18.40% 16.31% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,507,393,159 |
| Holdings Count | Holding | 101 |
| Advisory Fees Paid, Amount | $ 4,997,886 |
| InvestmentCompanyPortfolioTurnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,507,393,159 Number of Investments 101 Portfolio Turnover 58% Total Advisory Fees Paid $4,997,886 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.7% Materials 1.0% Industrials 3.4% Consumer Staples 4.6% Financials 6.5% Health Care 8.6% Consumer Discretionary 12.7% Communication Services 12.8% Information Technology 47.4% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035051 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Large Cap Growth Fund |
| Class Name | Institutional Shares |
| Trading Symbol | QILGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Large Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B75"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $85 0.74% |
| Expenses Paid, Amount | $ 85 |
| Expense Ratio, Percent | 0.74% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 1000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stocks of large-sized U.S. companies. Top Contributors to Performance ■ An underweight position in companies with negative analyst conviction and flat to worsening earnings to price ratio contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Industrials aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA and Vistra Corp. and an underweight position in Tesla, Inc. Top Detractors from Performance ■ Poor stock selection among companies with a strong 1-year return, very high analyst conviction, and low structural earnings detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples and Financials detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Zscaler, Inc. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Institutional Shares Russell 3000 ® Morningstar Large Growth Funds Average Russell 1000 Growth Index 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,955 $11,128 $11,427 $11,608 7/31/2016 $10,583 $11,623 $11,380 $12,113 7/31/2017 $12,274 $13,498 $13,364 $14,299 7/31/2018 $15,668 $15,711 $16,073 $17,566 7/31/2019 $17,483 $16,819 $17,541 $19,467 7/31/2020 $22,242 $18,657 $21,565 $25,275 7/31/2021 $30,092 $25,882 $29,229 $34,546 7/31/2022 $27,477 $23,979 $23,887 $30,426 7/31/2023 $32,664 $27,013 $27,296 $35,692 7/31/2024 $42,312 $32,705 $33,673 $45,306 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Institutional Shares 29.54% 19.33% 15.52% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Morningstar Large Growth Funds Average 23.31% 13.95% 12.92% Russell 1000 Growth Index 26.94% 18.40% 16.31% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,507,393,159 |
| Holdings Count | Holding | 101 |
| Advisory Fees Paid, Amount | $ 4,997,886 |
| InvestmentCompanyPortfolioTurnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,507,393,159 Number of Investments 101 Portfolio Turnover 58% Total Advisory Fees Paid $4,997,886 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.7% Materials 1.0% Industrials 3.4% Consumer Staples 4.6% Financials 6.5% Health Care 8.6% Consumer Discretionary 12.7% Communication Services 12.8% Information Technology 47.4% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000250224 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Large Cap Growth Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | QRLGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Large Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B103"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 Shares $12 Footnote Reference 0.71% Footnote Description Footnote * Based on operations for the period from May 29, 2024 to July 31, 2024. Expenses for the full year would be higher. |
| Expenses Paid, Amount | $ 12 |
| Expense Ratio, Percent | 0.71% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 1000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stocks of large-sized U.S. companies. Top Contributors to Performance ■ An underweight position in companies with negative analyst conviction and flat to worsening earnings to price ratio contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Industrials aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA and Vistra Corp. and an underweight position in Tesla, Inc. Top Detractors from Performance ■ Poor stock selection among companies with a strong 1-year return, very high analyst conviction, and low structural earnings detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples and Financials detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Zscaler, Inc. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class R6 Shares Russell 3000 ® Morningstar Large Growth Funds Average Russell 1000 Growth Index 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,955 $11,128 $11,427 $11,608 7/31/2016 $10,583 $11,623 $11,380 $12,113 7/31/2017 $12,274 $13,498 $13,364 $14,299 7/31/2018 $15,668 $15,711 $16,073 $17,566 7/31/2019 $17,483 $16,819 $17,541 $19,467 7/31/2020 $22,242 $18,657 $21,565 $25,275 7/31/2021 $30,092 $25,882 $29,229 $34,546 7/31/2022 $27,477 $23,979 $23,887 $30,426 7/31/2023 $32,664 $27,013 $27,296 $35,692 7/31/2024 $42,312 $32,705 $33,673 $45,306 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class R6 Shares Footnote Reference 29.54% 19.33% 15.52% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Morningstar Large Growth Funds Average 23.31% 13.95% 12.92% Russell 1000 Growth Index 26.94% 18.40% 16.31% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,507,393,159 |
| Holdings Count | Holding | 101 |
| Advisory Fees Paid, Amount | $ 4,997,886 |
| InvestmentCompanyPortfolioTurnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,507,393,159 Number of Investments 101 Portfolio Turnover 58% Total Advisory Fees Paid $4,997,886 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.7% Materials 1.0% Industrials 3.4% Consumer Staples 4.6% Financials 6.5% Health Care 8.6% Consumer Discretionary 12.7% Communication Services 12.8% Information Technology 47.4% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.75% to 0.65% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035043 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT All Cap Core Fund |
| Class Name | Class A Shares |
| Trading Symbol | QAACX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT All Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B131"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A Shares $118 1.04% |
| Expenses Paid, Amount | $ 118 |
| Expense Ratio, Percent | 1.04% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 3000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term capital appreciation by investing primarily in the common stock of U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among companies with strong technical factors and neutral to high analyst conviction contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Utilities aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA, Vistra Corp. and Dell Technologies, Inc. (Class C Shares). Top Detractors from Performance ■ An underweight position in and weak stock selection among companies with negative analyst conviction and flat or improving earnings to price ratios detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Fortinet. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class A Shares with sales load Russell 3000 ® Morningstar Large Blend Funds Average 7/31/2014 $9,451 $10,000 $10,000 7/31/2015 $10,216 $11,128 $10,863 7/31/2016 $10,154 $11,623 $11,045 7/31/2017 $11,734 $13,498 $12,699 7/31/2018 $14,172 $15,711 $14,558 7/31/2019 $15,273 $16,819 $15,422 7/31/2020 $16,754 $18,657 $16,566 7/31/2021 $23,188 $25,882 $22,482 7/31/2022 $22,040 $23,979 $21,008 7/31/2023 $25,203 $27,013 $23,397 7/31/2024 $31,842 $32,705 $27,948 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class A Shares with sales load 19.40% 14.53% 12.28% Class A Shares without sales load 26.34% 15.83% 12.92% Russell 3000 ® 21.07% 14.22% 12.58% Morningstar Large Blend Funds Average 19.29% 12.56% 10.80% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 1,066,272,970 |
| Holdings Count | Holding | 176 |
| Advisory Fees Paid, Amount | $ 4,344,724 |
| InvestmentCompanyPortfolioTurnover | 71% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,066,272,970 Number of Investments 176 Portfolio Turnover 71% Total Advisory Fees Paid $4,344,724 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Real Estate 1.5% Utilities 2.2% Energy 2.7% Materials 3.6% Consumer Staples 6.3% Industrials 8.2% Consumer Discretionary 9.0% Communication Services 9.1% Health Care 12.7% Financials 14.4% Information Technology 28.0% |
| Material Fund Change [Text Block] | |
| C000035044 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT All Cap Core Fund |
| Class Name | Class C Shares |
| Trading Symbol | QCACX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT All Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B156"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C Shares $204 1.81% |
| Expenses Paid, Amount | $ 204 |
| Expense Ratio, Percent | 1.81% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 3000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term capital appreciation by investing primarily in the common stock of U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among companies with strong technical factors and neutral to high analyst conviction contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Utilities aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA, Vistra Corp. and Dell Technologies, Inc. (Class C Shares). Top Detractors from Performance ■ An underweight position in and weak stock selection among companies with negative analyst conviction and flat or improving earnings to price ratios detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Fortinet. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class C Shares Russell 3000 ® Morningstar Large Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 7/31/2015 $10,731 $11,128 $10,863 7/31/2016 $10,577 $11,623 $11,045 7/31/2017 $12,134 $13,498 $12,699 7/31/2018 $14,550 $15,711 $14,558 7/31/2019 $15,562 $16,819 $15,422 7/31/2020 $16,940 $18,657 $16,566 7/31/2021 $23,270 $25,882 $22,482 7/31/2022 $21,952 $23,979 $21,008 7/31/2023 $25,102 $27,013 $23,397 7/31/2024 $31,714 $32,705 $27,948 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class C Shares with sales load 24.38% 14.95% 12.23% Class C Shares without sales load 25.38% 14.95% 12.23% Russell 3000 ® 21.07% 14.22% 12.58% Morningstar Large Blend Funds Average 19.29% 12.56% 10.80% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 1,066,272,970 |
| Holdings Count | Holding | 176 |
| Advisory Fees Paid, Amount | $ 4,344,724 |
| InvestmentCompanyPortfolioTurnover | 71% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,066,272,970 Number of Investments 176 Portfolio Turnover 71% Total Advisory Fees Paid $4,344,724 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Real Estate 1.5% Utilities 2.2% Energy 2.7% Materials 3.6% Consumer Staples 6.3% Industrials 8.2% Consumer Discretionary 9.0% Communication Services 9.1% Health Care 12.7% Financials 14.4% Information Technology 28.0% |
| Material Fund Change [Text Block] | |
| C000035045 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT All Cap Core Fund |
| Class Name | Institutional Shares |
| Trading Symbol | QIACX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT All Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B181"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $84 0.74% |
| Expenses Paid, Amount | $ 84 |
| Expense Ratio, Percent | 0.74% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 3000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term capital appreciation by investing primarily in the common stock of U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among companies with strong technical factors and neutral to high analyst conviction contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Utilities aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA, Vistra Corp. and Dell Technologies, Inc. (Class C Shares). Top Detractors from Performance ■ An underweight position in and weak stock selection among companies with negative analyst conviction and flat or improving earnings to price ratios detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Fortinet. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Institutional Shares Russell 3000 ® Morningstar Large Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 7/31/2015 $10,845 $11,128 $10,863 7/31/2016 $10,807 $11,623 $11,045 7/31/2017 $12,525 $13,498 $12,699 7/31/2018 $15,175 $15,711 $14,558 7/31/2019 $16,401 $16,819 $15,422 7/31/2020 $18,042 $18,657 $16,566 7/31/2021 $25,048 $25,882 $22,482 7/31/2022 $23,879 $23,979 $21,008 7/31/2023 $27,387 $27,013 $23,397 7/31/2024 $34,707 $32,705 $27,948 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Institutional Shares 26.73% 16.17% 13.25% Russell 3000 ® 21.07% 14.22% 12.58% Morningstar Large Blend Funds Average 19.29% 12.56% 10.80% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 1,066,272,970 |
| Holdings Count | Holding | 176 |
| Advisory Fees Paid, Amount | $ 4,344,724 |
| InvestmentCompanyPortfolioTurnover | 71% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,066,272,970 Number of Investments 176 Portfolio Turnover 71% Total Advisory Fees Paid $4,344,724 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Real Estate 1.5% Utilities 2.2% Energy 2.7% Materials 3.6% Consumer Staples 6.3% Industrials 8.2% Consumer Discretionary 9.0% Communication Services 9.1% Health Care 12.7% Financials 14.4% Information Technology 28.0% |
| Material Fund Change [Text Block] | |
| C000043497 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT All Cap Core Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | QKACX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT All Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B206"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 Shares $83 0.73% |
| Expenses Paid, Amount | $ 83 |
| Expense Ratio, Percent | 0.73% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 3000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term capital appreciation by investing primarily in the common stock of U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among companies with strong technical factors and neutral to high analyst conviction contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Discretionary and Utilities aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Spotify Technology SA, Vistra Corp. and Dell Technologies, Inc. (Class C Shares). Top Detractors from Performance ■ An underweight position in and weak stock selection among companies with negative analyst conviction and flat or improving earnings to price ratios detracted from Fund relative performance. ■ By sector, stock selection in Consumer Staples detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in NVIDIA Corporation and overweight positions in PepsiCo, Inc. and Fortinet. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class R6 Shares Russell 3000 ® Morningstar Large Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 7/31/2015 $10,765 $11,128 $10,863 7/31/2016 $10,652 $11,623 $11,045 7/31/2017 $12,335 $13,498 $12,699 7/31/2018 $14,946 $15,711 $14,558 7/31/2019 $16,154 $16,819 $15,422 7/31/2020 $17,770 $18,657 $16,566 7/31/2021 $24,671 $25,882 $22,482 7/31/2022 $23,521 $23,979 $21,008 7/31/2023 $26,985 $27,013 $23,397 7/31/2024 $34,195 $32,705 $27,948 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class R6 Shares 26.72% 16.18% 13.08% Russell 3000 ® 21.07% 14.22% 12.58% Morningstar Large Blend Funds Average 19.29% 12.56% 10.80% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 1,066,272,970 |
| Holdings Count | Holding | 176 |
| Advisory Fees Paid, Amount | $ 4,344,724 |
| InvestmentCompanyPortfolioTurnover | 71% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,066,272,970 Number of Investments 176 Portfolio Turnover 71% Total Advisory Fees Paid $4,344,724 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Real Estate 1.5% Utilities 2.2% Energy 2.7% Materials 3.6% Consumer Staples 6.3% Industrials 8.2% Consumer Discretionary 9.0% Communication Services 9.1% Health Care 12.7% Financials 14.4% Information Technology 28.0% |
| Material Fund Change [Text Block] | |
| C000035055 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Balanced Fund |
| Class Name | Class A Shares |
| Trading Symbol | QABGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Balanced Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B231"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A Shares $142 1.31% |
| Expenses Paid, Amount | $ 142 |
| Expense Ratio, Percent | 1.31% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to a 60%/40% blend of the S&P 500 Index and the Bloomberg US Aggregate Bond Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term growth of capital and income by investing in a combination of equity and fixed-income securities. Top Contributors to Performance ■ Domestic equity security selection positively affected Fund relative performance. ■ By sector, domestic equity security selection in Utilities, Consumer Discretionary and Communication Services aided performance. ■ An overweight allocation to equities and underweight position in fixed income throughout the reporting period aided performance. Top Detractors from Performance ■ The allocation to international equities detracted from Fund relative performance as these investments underperformed the domestic equity market during the reporting period. ■ By sector, domestic equity security selection in Information Technology, Materials and Health Care detracted from performance. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class A Shares with sales load S&P 500 Index Bloomberg US Aggregate Bond Index 60% S&P 500/ 40% Bloomberg US Aggregate Bond Morningstar Allocation Funds Average - 50%-70% Equity 7/31/2014 $9,447 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,004 $11,121 $10,282 $10,790 $10,398 7/31/2016 $9,966 $11,745 $10,893 $11,437 $10,583 7/31/2017 $10,874 $13,629 $10,837 $12,488 $11,582 7/31/2018 $12,170 $15,843 $10,750 $13,641 $12,378 7/31/2019 $12,813 $17,108 $11,619 $14,797 $12,905 7/31/2020 $13,976 $19,153 $12,795 $16,549 $13,608 7/31/2021 $17,234 $26,134 $12,705 $19,945 $16,762 7/31/2022 $16,018 $24,921 $11,547 $18,717 $15,464 7/31/2023 $17,024 $28,165 $11,158 $19,920 $16,326 7/31/2024 $19,808 $34,403 $11,727 $22,939 $18,352 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class A Shares with sales load 9.93% 7.88% 7.07% Class A Shares without sales load 16.36% 9.10% 7.68% S&P 500 Index 22.15% 14.99% 13.15% Bloomberg US Aggregate Bond Index 5.10% 0.19% 1.61% 60% S&P 500/ 40% Bloomberg US Aggregate Bond 15.16% 9.16% 8.66% Morningstar Allocation Funds Average - 50%-70% Equity 12.37% 7.20% 6.28% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 227,569,976 |
| Holdings Count | Holding | 467 |
| Advisory Fees Paid, Amount | $ 1,554,001 |
| InvestmentCompanyPortfolioTurnover | 68% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $227,569,976 Number of Investments 467 Portfolio Turnover 68% Total Advisory Fees Paid $1,554,001 |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Collateralized Mortgage Obligations 1.2% Emerging Markets Core Fund 1.9% Cash Equivalents 2.0% Project and Trade Finance Core Fund 2.1% U.S. Treasury Securities 2.5% Asset-Backed Securities 2.7% International Equity Securities (including International Exchange-Traded Funds) 7.5% Mortgage Core Fund 9.8% Corporate Bonds 11.0% Domestic Equity Securities 57.2% |
| Material Fund Change [Text Block] | |
| C000035056 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Balanced Fund |
| Class Name | Class C Shares |
| Trading Symbol | QCBGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Balanced Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B256"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C Shares $224 2.08% |
| Expenses Paid, Amount | $ 224 |
| Expense Ratio, Percent | 2.08% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to a 60%/40% blend of the S&P 500 Index and the Bloomberg US Aggregate Bond Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term growth of capital and income by investing in a combination of equity and fixed-income securities. Top Contributors to Performance ■ Domestic equity security selection positively affected Fund relative performance. ■ By sector, domestic equity security selection in Utilities, Consumer Discretionary and Communication Services aided performance. ■ An overweight allocation to equities and underweight position in fixed income throughout the reporting period aided performance. Top Detractors from Performance ■ The allocation to international equities detracted from Fund relative performance as these investments underperformed the domestic equity market during the reporting period. ■ By sector, domestic equity security selection in Information Technology, Materials and Health Care detracted from performance. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class C Shares S&P 500 Index Bloomberg US Aggregate Bond Index 60% S&P 500/ 40% Bloomberg US Aggregate Bond Morningstar Allocation Funds Average - 50%-70% Equity 7/31/2014 $10,000 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,512 $11,121 $10,282 $10,790 $10,398 7/31/2016 $10,397 $11,745 $10,893 $11,437 $10,583 7/31/2017 $11,253 $13,629 $10,837 $12,488 $11,582 7/31/2018 $12,500 $15,843 $10,750 $13,641 $12,378 7/31/2019 $13,068 $17,108 $11,619 $14,797 $12,905 7/31/2020 $14,146 $19,153 $12,795 $16,549 $13,608 7/31/2021 $17,311 $26,134 $12,705 $19,945 $16,762 7/31/2022 $15,968 $24,921 $11,547 $18,717 $15,464 7/31/2023 $16,970 $28,165 $11,158 $19,920 $16,326 7/31/2024 $19,746 $34,403 $11,727 $22,939 $18,352 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class C Shares with sales load 14.46% 8.27% 7.04% Class C Shares without sales load 15.46% 8.27% 7.04% S&P 500 Index 22.15% 14.99% 13.15% Bloomberg US Aggregate Bond Index 5.10% 0.19% 1.61% 60% S&P 500/ 40% Bloomberg US Aggregate Bond 15.16% 9.16% 8.66% Morningstar Allocation Funds Average - 50%-70% Equity 12.37% 7.20% 6.28% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 227,569,976 |
| Holdings Count | Holding | 467 |
| Advisory Fees Paid, Amount | $ 1,554,001 |
| InvestmentCompanyPortfolioTurnover | 68% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $227,569,976 Number of Investments 467 Portfolio Turnover 68% Total Advisory Fees Paid $1,554,001 |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Collateralized Mortgage Obligations 1.2% Emerging Markets Core Fund 1.9% Cash Equivalents 2.0% Project and Trade Finance Core Fund 2.1% U.S. Treasury Securities 2.5% Asset-Backed Securities 2.7% International Equity Securities (including International Exchange-Traded Funds) 7.5% Mortgage Core Fund 9.8% Corporate Bonds 11.0% Domestic Equity Securities 57.2% |
| Material Fund Change [Text Block] | |
| C000035057 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Balanced Fund |
| Class Name | Institutional Shares |
| Trading Symbol | QIBGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Balanced Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B281"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $115 1.06% |
| Expenses Paid, Amount | $ 115 |
| Expense Ratio, Percent | 1.06% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to a 60%/40% blend of the S&P 500 Index and the Bloomberg US Aggregate Bond Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term growth of capital and income by investing in a combination of equity and fixed-income securities. Top Contributors to Performance ■ Domestic equity security selection positively affected Fund relative performance. ■ By sector, domestic equity security selection in Utilities, Consumer Discretionary and Communication Services aided performance. ■ An overweight allocation to equities and underweight position in fixed income throughout the reporting period aided performance. Top Detractors from Performance ■ The allocation to international equities detracted from Fund relative performance as these investments underperformed the domestic equity market during the reporting period. ■ By sector, domestic equity security selection in Information Technology, Materials and Health Care detracted from performance. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Institutional Shares S&P 500 Index Bloomberg US Aggregate Bond Index 60% S&P 500/ 40% Bloomberg US Aggregate Bond Morningstar Allocation Funds Average - 50%-70% Equity 7/31/2014 $10,000 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,613 $11,121 $10,282 $10,790 $10,398 7/31/2016 $10,606 $11,745 $10,893 $11,437 $10,583 7/31/2017 $11,598 $13,629 $10,837 $12,488 $11,582 7/31/2018 $13,008 $15,843 $10,750 $13,641 $12,378 7/31/2019 $13,738 $17,108 $11,619 $14,797 $12,905 7/31/2020 $15,020 $19,153 $12,795 $16,549 $13,608 7/31/2021 $18,563 $26,134 $12,705 $19,945 $16,762 7/31/2022 $17,297 $24,921 $11,547 $18,717 $15,464 7/31/2023 $18,433 $28,165 $11,158 $19,920 $16,326 7/31/2024 $21,497 $34,403 $11,727 $22,939 $18,352 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Institutional Shares 16.62% 9.37% 7.95% S&P 500 Index 22.15% 14.99% 13.15% Bloomberg US Aggregate Bond Index 5.10% 0.19% 1.61% 60% S&P 500/ 40% Bloomberg US Aggregate Bond 15.16% 9.16% 8.66% Morningstar Allocation Funds Average - 50%-70% Equity 12.37% 7.20% 6.28% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 227,569,976 |
| Holdings Count | Holding | 467 |
| Advisory Fees Paid, Amount | $ 1,554,001 |
| InvestmentCompanyPortfolioTurnover | 68% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $227,569,976 Number of Investments 467 Portfolio Turnover 68% Total Advisory Fees Paid $1,554,001 |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Collateralized Mortgage Obligations 1.2% Emerging Markets Core Fund 1.9% Cash Equivalents 2.0% Project and Trade Finance Core Fund 2.1% U.S. Treasury Securities 2.5% Asset-Backed Securities 2.7% International Equity Securities (including International Exchange-Traded Funds) 7.5% Mortgage Core Fund 9.8% Corporate Bonds 11.0% Domestic Equity Securities 57.2% |
| Material Fund Change [Text Block] | |
| C000043498 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Balanced Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | QKBGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Balanced Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B306"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 Shares $110 1.02% |
| Expenses Paid, Amount | $ 110 |
| Expense Ratio, Percent | 1.02% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to a 60%/40% blend of the S&P 500 Index and the Bloomberg US Aggregate Bond Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes. The Fund seeks to provide long-term growth of capital and income by investing in a combination of equity and fixed-income securities. Top Contributors to Performance ■ Domestic equity security selection positively affected Fund relative performance. ■ By sector, domestic equity security selection in Utilities, Consumer Discretionary and Communication Services aided performance. ■ An overweight allocation to equities and underweight position in fixed income throughout the reporting period aided performance. Top Detractors from Performance ■ The allocation to international equities detracted from Fund relative performance as these investments underperformed the domestic equity market during the reporting period. ■ By sector, domestic equity security selection in Information Technology, Materials and Health Care detracted from performance. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class R6 Shares S&P 500 Index Bloomberg US Aggregate Bond Index 60% S&P 500/ 40% Bloomberg US Aggregate Bond Morningstar Allocation Funds Average - 50%-70% Equity 7/31/2014 $10,000 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,561 $11,121 $10,282 $10,790 $10,398 7/31/2016 $10,499 $11,745 $10,893 $11,437 $10,583 7/31/2017 $11,478 $13,629 $10,837 $12,488 $11,582 7/31/2018 $12,883 $15,843 $10,750 $13,641 $12,378 7/31/2019 $13,592 $17,108 $11,619 $14,797 $12,905 7/31/2020 $14,859 $19,153 $12,795 $16,549 $13,608 7/31/2021 $18,380 $26,134 $12,705 $19,945 $16,762 7/31/2022 $17,128 $24,921 $11,547 $18,717 $15,464 7/31/2023 $18,256 $28,165 $11,158 $19,920 $16,326 7/31/2024 $21,297 $34,403 $11,727 $22,939 $18,352 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class R6 Shares 16.66% 9.40% 7.85% S&P 500 Index 22.15% 14.99% 13.15% Bloomberg US Aggregate Bond Index 5.10% 0.19% 1.61% 60% S&P 500/ 40% Bloomberg US Aggregate Bond 15.16% 9.16% 8.66% Morningstar Allocation Funds Average - 50%-70% Equity 12.37% 7.20% 6.28% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| AssetsNet | $ 227,569,976 |
| Holdings Count | Holding | 467 |
| Advisory Fees Paid, Amount | $ 1,554,001 |
| InvestmentCompanyPortfolioTurnover | 68% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $227,569,976 Number of Investments 467 Portfolio Turnover 68% Total Advisory Fees Paid $1,554,001 |
| Holdings [Text Block] | Top Security Types (% of Net Assets) Value Value Collateralized Mortgage Obligations 1.2% Emerging Markets Core Fund 1.9% Cash Equivalents 2.0% Project and Trade Finance Core Fund 2.1% U.S. Treasury Securities 2.5% Asset-Backed Securities 2.7% International Equity Securities (including International Exchange-Traded Funds) 7.5% Mortgage Core Fund 9.8% Corporate Bonds 11.0% Domestic Equity Securities 57.2% |
| Material Fund Change [Text Block] | |
| C000035058 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Core Fund |
| Class Name | Class A Shares |
| Trading Symbol | QASCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B331"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A Shares $124 1.13% |
| Expenses Paid, Amount | $ 124 |
| Expense Ratio, Percent | 1.13% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among younger companies with strong technical factors contributed positively to Fund relative performance. ■ By sector, stock selection in Industrials and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Abercrombie & Fitch Co. (Class A), Jackson Financial Incorporation (Class A) and Murphy USA, Inc. Top Detractors from Performance ■ An overweight position in and weak stock selection among companies with a highly depressed historical return and no significant financing needs detracted from Fund relative performance. ■ By sector, stock selection in Information Technology and Real Estate detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in Super Micro Computer, Inc. and overweight positions in Green Dot Corporation (Class A) and Redfin Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class A Shares with sales load Russell 3000 ® Russell 2000 Index Morningstar Small Blend Funds Average 7/31/2014 $9,448 $10,000 $10,000 $10,000 7/31/2015 $10,414 $11,128 $11,203 $10,772 7/31/2016 $11,237 $11,623 $11,203 $10,835 7/31/2017 $14,043 $13,498 $13,270 $12,570 7/31/2018 $16,640 $15,711 $15,756 $14,544 7/31/2019 $15,360 $16,819 $15,060 $13,818 7/31/2020 $14,023 $18,657 $14,369 $12,595 7/31/2021 $21,648 $25,882 $21,836 $19,162 7/31/2022 $19,583 $23,979 $18,715 $17,568 7/31/2023 $20,803 $27,013 $20,195 $18,921 7/31/2024 $24,703 $32,705 $23,073 $21,669 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class A Shares with sales load 12.20% 8.73% 9.46% Class A Shares without sales load 18.75% 9.97% 10.09% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Index 14.25% 8.90% 8.72% Morningstar Small Blend Funds Average 14.47% 9.29% 7.97% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,373,502,858 |
| Holdings Count | Holding | 302 |
| Advisory Fees Paid, Amount | $ 8,597,351 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,373,502,858 Number of Investments 302 Portfolio Turnover 85% Total Advisory Fees Paid $8,597,351 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 2.0% Communication Services 3.1% Consumer Staples 3.5% Materials 4.6% Real Estate 5.0% Energy 5.8% Consumer Discretionary 8.5% Information Technology 12.8% Industrials 17.1% Health Care 17.3% Financials 18.6% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035059 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Core Fund |
| Class Name | Class C Shares |
| Trading Symbol | QCSCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B359"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C Shares $216 1.98% |
| Expenses Paid, Amount | $ 216 |
| Expense Ratio, Percent | 1.98% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among younger companies with strong technical factors contributed positively to Fund relative performance. ■ By sector, stock selection in Industrials and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Abercrombie & Fitch Co. (Class A), Jackson Financial Incorporation (Class A) and Murphy USA, Inc. Top Detractors from Performance ■ An overweight position in and weak stock selection among companies with a highly depressed historical return and no significant financing needs detracted from Fund relative performance. ■ By sector, stock selection in Information Technology and Real Estate detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in Super Micro Computer, Inc. and overweight positions in Green Dot Corporation (Class A) and Redfin Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class C Shares Russell 3000 ® Russell 2000 Index Morningstar Small Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $10,941 $11,128 $11,203 $10,772 7/31/2016 $11,720 $11,623 $11,203 $10,835 7/31/2017 $14,530 $13,498 $13,270 $12,570 7/31/2018 $17,087 $15,711 $15,756 $14,544 7/31/2019 $15,661 $16,819 $15,060 $13,818 7/31/2020 $14,197 $18,657 $14,369 $12,595 7/31/2021 $21,744 $25,882 $21,836 $19,162 7/31/2022 $19,504 $23,979 $18,715 $17,568 7/31/2023 $20,719 $27,013 $20,195 $18,921 7/31/2024 $24,603 $32,705 $23,073 $21,669 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class C Shares with sales load 16.73% 9.09% 9.42% Class C Shares without sales load 17.73% 9.09% 9.42% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Index 14.25% 8.90% 8.72% Morningstar Small Blend Funds Average 14.47% 9.29% 7.97% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,373,502,858 |
| Holdings Count | Holding | 302 |
| Advisory Fees Paid, Amount | $ 8,597,351 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,373,502,858 Number of Investments 302 Portfolio Turnover 85% Total Advisory Fees Paid $8,597,351 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 2.0% Communication Services 3.1% Consumer Staples 3.5% Materials 4.6% Real Estate 5.0% Energy 5.8% Consumer Discretionary 8.5% Information Technology 12.8% Industrials 17.1% Health Care 17.3% Financials 18.6% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035060 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Core Fund |
| Class Name | Institutional Shares |
| Trading Symbol | QISCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B387"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $96 0.88% |
| Expenses Paid, Amount | $ 96 |
| Expense Ratio, Percent | 0.88% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among younger companies with strong technical factors contributed positively to Fund relative performance. ■ By sector, stock selection in Industrials and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Abercrombie & Fitch Co. (Class A), Jackson Financial Incorporation (Class A) and Murphy USA, Inc. Top Detractors from Performance ■ An overweight position in and weak stock selection among companies with a highly depressed historical return and no significant financing needs detracted from Fund relative performance. ■ By sector, stock selection in Information Technology and Real Estate detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in Super Micro Computer, Inc. and overweight positions in Green Dot Corporation (Class A) and Redfin Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Institutional Shares Russell 3000 ® Russell 2000 Index Morningstar Small Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $11,048 $11,128 $11,203 $10,772 7/31/2016 $11,958 $11,623 $11,203 $10,835 7/31/2017 $14,976 $13,498 $13,270 $12,570 7/31/2018 $17,789 $15,711 $15,756 $14,544 7/31/2019 $16,464 $16,819 $15,060 $13,818 7/31/2020 $15,072 $18,657 $14,369 $12,595 7/31/2021 $23,321 $25,882 $21,836 $19,162 7/31/2022 $21,149 $23,979 $18,715 $17,568 7/31/2023 $22,516 $27,013 $20,195 $18,921 7/31/2024 $26,814 $32,705 $23,073 $21,669 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Institutional Shares 19.09% 10.25% 10.37% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Index 14.25% 8.90% 8.72% Morningstar Small Blend Funds Average 14.47% 9.29% 7.97% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,373,502,858 |
| Holdings Count | Holding | 302 |
| Advisory Fees Paid, Amount | $ 8,597,351 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,373,502,858 Number of Investments 302 Portfolio Turnover 85% Total Advisory Fees Paid $8,597,351 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 2.0% Communication Services 3.1% Consumer Staples 3.5% Materials 4.6% Real Estate 5.0% Energy 5.8% Consumer Discretionary 8.5% Information Technology 12.8% Industrials 17.1% Health Care 17.3% Financials 18.6% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000170839 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Core Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | QLSCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Core Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B415"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 Shares $95 0.87% |
| Expenses Paid, Amount | $ 95 |
| Expense Ratio, Percent | 0.87% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in and solid stock selection among younger companies with strong technical factors contributed positively to Fund relative performance. ■ By sector, stock selection in Industrials and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Abercrombie & Fitch Co. (Class A), Jackson Financial Incorporation (Class A) and Murphy USA, Inc. Top Detractors from Performance ■ An overweight position in and weak stock selection among companies with a highly depressed historical return and no significant financing needs detracted from Fund relative performance. ■ By sector, stock selection in Information Technology and Real Estate detracted from performance. ■ Top individual Fund holdings that detracted from performance were an underweight position in Super Micro Computer, Inc. and overweight positions in Green Dot Corporation (Class A) and Redfin Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class R6 Shares Russell 3000 ® Russell 2000 Index Morningstar Small Blend Funds Average 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $11,009 $11,128 $11,203 $10,772 7/31/2016 $11,878 $11,623 $11,203 $10,835 7/31/2017 $14,876 $13,498 $13,270 $12,570 7/31/2018 $17,670 $15,711 $15,756 $14,544 7/31/2019 $16,354 $16,819 $15,060 $13,818 7/31/2020 $14,973 $18,657 $14,369 $12,595 7/31/2021 $23,178 $25,882 $21,836 $19,162 7/31/2022 $21,022 $23,979 $18,715 $17,568 7/31/2023 $22,383 $27,013 $20,195 $18,921 7/31/2024 $26,655 $32,705 $23,073 $21,669 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class R6 Shares 19.09% 10.26% 10.30% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Index 14.25% 8.90% 8.72% Morningstar Small Blend Funds Average 14.47% 9.29% 7.97% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 1,373,502,858 |
| Holdings Count | Holding | 302 |
| Advisory Fees Paid, Amount | $ 8,597,351 |
| InvestmentCompanyPortfolioTurnover | 85% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,373,502,858 Number of Investments 302 Portfolio Turnover 85% Total Advisory Fees Paid $8,597,351 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 2.0% Communication Services 3.1% Consumer Staples 3.5% Materials 4.6% Real Estate 5.0% Energy 5.8% Consumer Discretionary 8.5% Information Technology 12.8% Industrials 17.1% Health Care 17.3% Financials 18.6% |
| Material Fund Change [Text Block] | Material Fund Changes The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Material Fund Change Expenses [Text Block] | Effective October 1, 2024, the Fund’s annual investment advisory fee payable to its investment adviser is reduced from 0.80% to 0.75% of the Fund’s average daily net assets. |
| Summary of Change Legend [Text Block] | The following is a summary of material changes made to the Fund during the reporting period. For more complete and current information, you may review the Fund’s disclosure documents on its webpage at www.FederatedHermes.com/us/FundInformation |
| C000035061 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Growth Fund |
| Class Name | Class A Shares |
| Trading Symbol | QASGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B443"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A Shares $120 1.13% |
| Expenses Paid, Amount | $ 120 |
| Expense Ratio, Percent | 1.13% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in companies with positive analyst conviction and favorable structural earnings contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Staples and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Murphy USA, Inc., Wingstop, Inc., and EMCOR Group, Inc. Top Detractors from Performance ■ Negative stock selection among young companies with strong price trends and positive analyst conviction detracted from Fund relative performance. ■ By sector, stock selection in Information Technology detracted from performance. ■ Top individual Fund holdings that detracted from performance were underweight positions in Super Micro Computer, Inc. and MicroStrategy Incorporated (Class A) and an overweight to Sunpower Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class A Shares with sales load Russell 3000 ® Russell 2000 Growth Index Morningstar Small Growth Funds 7/31/2014 $9,451 $10,000 $10,000 $10,000 7/31/2015 $11,136 $11,128 $12,007 $11,645 7/31/2016 $11,392 $11,623 $11,371 $11,034 7/31/2017 $14,354 $13,498 $13,390 $12,982 7/31/2018 $17,726 $15,711 $16,458 $15,950 7/31/2019 $17,217 $16,819 $16,258 $16,474 7/31/2020 $17,660 $18,657 $17,233 $17,894 7/31/2021 $25,082 $25,882 $24,299 $25,872 7/31/2022 $20,453 $23,979 $18,666 $20,027 7/31/2023 $22,739 $27,013 $20,828 $21,606 7/31/2024 $25,594 $32,705 $23,493 $24,089 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class A Shares with sales load 6.38% 7.03% 9.85% Class A Shares without sales load 12.56% 8.25% 10.48% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Growth Index 12.80% 7.64% 8.92% Morningstar Small Growth Funds 11.58% 7.93% 9.21% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 498,581,925 |
| Holdings Count | Holding | 252 |
| Advisory Fees Paid, Amount | $ 3,048,922 |
| InvestmentCompanyPortfolioTurnover | 90% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $498,581,925 Number of Investments 252 Portfolio Turnover 90% Total Advisory Fees Paid $3,048,922 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.3% Real Estate 1.6% Communication Services 2.9% Energy 3.4% Materials 3.7% Consumer Staples 4.1% Financials 7.5% Consumer Discretionary 8.3% Information Technology 19.8% Industrials 21.2% Health Care 25.1% |
| Material Fund Change [Text Block] | |
| C000035062 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Growth Fund |
| Class Name | Class C Shares |
| Trading Symbol | QCSGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B469"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C Shares $210 1.98% |
| Expenses Paid, Amount | $ 210 |
| Expense Ratio, Percent | 1.98% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in companies with positive analyst conviction and favorable structural earnings contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Staples and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Murphy USA, Inc., Wingstop, Inc., and EMCOR Group, Inc. Top Detractors from Performance ■ Negative stock selection among young companies with strong price trends and positive analyst conviction detracted from Fund relative performance. ■ By sector, stock selection in Information Technology detracted from performance. ■ Top individual Fund holdings that detracted from performance were underweight positions in Super Micro Computer, Inc. and MicroStrategy Incorporated (Class A) and an overweight to Sunpower Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class C Shares Russell 3000 ® Russell 2000 Growth Index Morningstar Small Growth Funds 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $11,696 $11,128 $12,007 $11,645 7/31/2016 $11,872 $11,623 $11,371 $11,034 7/31/2017 $14,850 $13,498 $13,390 $12,982 7/31/2018 $18,197 $15,711 $16,458 $15,950 7/31/2019 $17,545 $16,819 $16,258 $16,474 7/31/2020 $17,864 $18,657 $17,233 $17,894 7/31/2021 $25,177 $25,882 $24,299 $25,872 7/31/2022 $20,358 $23,979 $18,666 $20,027 7/31/2023 $22,634 $27,013 $20,828 $21,606 7/31/2024 $25,475 $32,705 $23,493 $24,089 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class C Shares with sales load 10.62% 7.39% 9.80% Class C Shares without sales load 11.62% 7.39% 9.80% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Growth Index 12.80% 7.64% 8.92% Morningstar Small Growth Funds 11.58% 7.93% 9.21% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 498,581,925 |
| Holdings Count | Holding | 252 |
| Advisory Fees Paid, Amount | $ 3,048,922 |
| InvestmentCompanyPortfolioTurnover | 90% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $498,581,925 Number of Investments 252 Portfolio Turnover 90% Total Advisory Fees Paid $3,048,922 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.3% Real Estate 1.6% Communication Services 2.9% Energy 3.4% Materials 3.7% Consumer Staples 4.1% Financials 7.5% Consumer Discretionary 8.3% Information Technology 19.8% Industrials 21.2% Health Care 25.1% |
| Material Fund Change [Text Block] | |
| C000035063 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Growth Fund |
| Class Name | Institutional Shares |
| Trading Symbol | QISGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B495"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Institutional Shares $94 0.88% |
| Expenses Paid, Amount | $ 94 |
| Expense Ratio, Percent | 0.88% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in companies with positive analyst conviction and favorable structural earnings contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Staples and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Murphy USA, Inc., Wingstop, Inc., and EMCOR Group, Inc. Top Detractors from Performance ■ Negative stock selection among young companies with strong price trends and positive analyst conviction detracted from Fund relative performance. ■ By sector, stock selection in Information Technology detracted from performance. ■ Top individual Fund holdings that detracted from performance were underweight positions in Super Micro Computer, Inc. and MicroStrategy Incorporated (Class A) and an overweight to Sunpower Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Institutional Shares Russell 3000 ® Russell 2000 Growth Index Morningstar Small Growth Funds 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $11,810 $11,128 $12,007 $11,645 7/31/2016 $12,112 $11,623 $11,371 $11,034 7/31/2017 $15,294 $13,498 $13,390 $12,982 7/31/2018 $18,941 $15,711 $16,458 $15,950 7/31/2019 $18,441 $16,819 $16,258 $16,474 7/31/2020 $18,963 $18,657 $17,233 $17,894 7/31/2021 $27,003 $25,882 $24,299 $25,872 7/31/2022 $22,065 $23,979 $18,666 $20,027 7/31/2023 $24,600 $27,013 $20,828 $21,606 7/31/2024 $27,760 $32,705 $23,493 $24,089 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Institutional Shares 12.85% 8.52% 10.75% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Growth Index 12.80% 7.64% 8.92% Morningstar Small Growth Funds 11.58% 7.93% 9.21% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 498,581,925 |
| Holdings Count | Holding | 252 |
| Advisory Fees Paid, Amount | $ 3,048,922 |
| InvestmentCompanyPortfolioTurnover | 90% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $498,581,925 Number of Investments 252 Portfolio Turnover 90% Total Advisory Fees Paid $3,048,922 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.3% Real Estate 1.6% Communication Services 2.9% Energy 3.4% Materials 3.7% Consumer Staples 4.1% Financials 7.5% Consumer Discretionary 8.3% Information Technology 19.8% Industrials 21.2% Health Care 25.1% |
| Material Fund Change [Text Block] | |
| C000170840 | |
| Shareholder Report [Line Items] | |
| Fund Name | Federated Hermes MDT Small Cap Growth Fund |
| Class Name | Class R6 Shares |
| Trading Symbol | QLSGX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Federated Hermes MDT Small Cap Growth Fund (the "Fund") for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information at www.FederatedHermes.com/us/FundInformation |
| Additional Information Phone Number | 1-800-341-7400 |
| Additional Information Website | <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span>" id="sjs-B521"><span style="text-decoration: underline solid rgb(0, 0, 0); box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.FederatedHermes.com/us/FundInformation</span></span> |
| Expenses [Text Block] | What were the Fund costs for the last year? (based on a hypothetical $10,000 investment) Class Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R6 Shares $93 0.87% |
| Expenses Paid, Amount | $ 93 |
| Expense Ratio, Percent | 0.87% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The following discussion compares the performance of the Fund to the Russell 2000 Growth Index to show how the Fund’s performance compares to the returns of similar investments for the reporting period. See the Average Annual Total Returns table below for the returns of the Fund and related indexes, including the Russell 3000 Index, which represents approximately 98% of investable U.S. equities by market capitalization. The Fund seeks to provide long-term capital appreciation by investing primarily in common stock of small U.S. companies. Top Contributors to Performance ■ An overweight position in companies with positive analyst conviction and favorable structural earnings contributed positively to Fund relative performance. ■ By sector, stock selection in Consumer Staples and Consumer Discretionary aided performance. ■ Top individual Fund holdings that contributed positively to performance included overweight positions in Murphy USA, Inc., Wingstop, Inc., and EMCOR Group, Inc. Top Detractors from Performance ■ Negative stock selection among young companies with strong price trends and positive analyst conviction detracted from Fund relative performance. ■ By sector, stock selection in Information Technology detracted from performance. ■ Top individual Fund holdings that detracted from performance were underweight positions in Super Micro Computer, Inc. and MicroStrategy Incorporated (Class A) and an overweight to Sunpower Corporation. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Class R6 Shares Russell 3000 ® Russell 2000 Growth Index Morningstar Small Growth Funds 7/31/2014 $10,000 $10,000 $10,000 $10,000 7/31/2015 $11,790 $11,128 $12,007 $11,645 7/31/2016 $12,072 $11,623 $11,371 $11,034 7/31/2017 $15,244 $13,498 $13,390 $12,982 7/31/2018 $18,873 $15,711 $16,458 $15,950 7/31/2019 $18,381 $16,819 $16,258 $16,474 7/31/2020 $18,910 $18,657 $17,233 $17,894 7/31/2021 $26,923 $25,882 $24,299 $25,872 7/31/2022 $22,011 $23,979 $18,666 $20,027 7/31/2023 $24,541 $27,013 $20,828 $21,606 7/31/2024 $27,694 $32,705 $23,493 $24,089 |
| Average Annual Return [Table Text Block] | Fund/Index 1 Year 5 Years 10 Years Class R6 Shares 12.85% 8.54% 10.72% Russell 3000 ® Footnote Reference 21.07% 14.22% 12.58% Russell 2000 Growth Index 12.80% 7.64% 8.92% Morningstar Small Growth Funds 11.58% 7.93% 9.21% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. |
| Performance Table Market Index Changed [Text Block] | The Fund has designated the Russell 3000 ® |
| AssetsNet | $ 498,581,925 |
| Holdings Count | Holding | 252 |
| Advisory Fees Paid, Amount | $ 3,048,922 |
| InvestmentCompanyPortfolioTurnover | 90% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $498,581,925 Number of Investments 252 Portfolio Turnover 90% Total Advisory Fees Paid $3,048,922 |
| Holdings [Text Block] | Top Sectors (% of Total Net Assets) Value Value Utilities 0.3% Real Estate 1.6% Communication Services 2.9% Energy 3.4% Materials 3.7% Consumer Staples 4.1% Financials 7.5% Consumer Discretionary 8.3% Information Technology 19.8% Industrials 21.2% Health Care 25.1% |
| Material Fund Change [Text Block] | |
