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Concentration Risk - Schedule of Revenue Concentration by Investment Strategy/Fund (Details) - Product Concentration Risk	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Federated Hermes Government Obligations Fund
Concentration Risk [Line Items]
Concentration risk	13.00%	10.00%	9.00%
Federated Hermes Kaufmann Mid-Cap Growth strategy
Concentration Risk [Line Items]
Concentration risk	9.00%	9.00%	10.00%
Federated Hermes Strategic Value Dividend strategy
Concentration Risk [Line Items]
Concentration risk	8.00%	11.00%	15.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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