Concentration Risk - Schedule of Revenue Concentration by Investment Strategy/Fund (Details) - Product Concentration Risk - Revenue benchmark	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federated Hermes Kaufmann Fund and Federated Hermes Kaufmann Fund II
Concentration Risk [Line Items]
Concentration risk	11.00%	9.00%	9.00%
Federated Hermes Strategic Value Dividend strategy
Concentration Risk [Line Items]
Concentration risk	9.00%	8.00%	11.00%
Federated Hermes Government Obligations Fund
Concentration Risk [Line Items]
Concentration risk	5.00%	13.00%	10.00%