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Federated Hermes MDT Large Cap Growth Fund Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Russell 3000® Index[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent [1],[2] 17.15% 13.15% 14.28%
Russell 1000® Growth Index(reflects no deduction for fees, expenses or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent [3] 18.56% 15.32% 18.12%
Morningstar Large Growth Funds Category(reflects no deduction for fees, expenses or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent [4] 15.92% 11.11% 14.53%
A      
Prospectus [Line Items]      
Average Annual Return, Percent 11.65% 15.61% 17.61%
C      
Prospectus [Line Items]      
Average Annual Return, Percent 16.27% 16.05% 17.56%
IS      
Prospectus [Line Items]      
Average Annual Return, Percent 18.45% 17.22% 18.57%
IS | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 17.61% 14.87% 16.31%
IS | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 11.54% 12.97% 14.71%
R6      
Prospectus [Line Items]      
Average Annual Return, Percent 18.48% 17.22% 18.57%
[1] The Russell 3000® Index is a broad-based benchmark that measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.
[2] The Russell 3000® Index is a broad-based benchmark that measures the performance of the largest 3,000 U.S. companies representing approximately 98% of the investable U.S. equity market.
[3] The Russell 1000® Growth Index measures the performance of those Russell 1000 companies with higher price-to-book ratios and higher forecasted growth values.
[4] Morningstar figures represent the average of the total returns reported by all the mutual funds designated by Morningstar as falling into the respective category indicated. They do not reflect sales charges.