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Concentration Risk - Schedule of Revenue Concentration by Investment Strategy/Fund (Details) - Product Concentration Risk - Revenue benchmark	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Federated Hermes Kaufmann Fund and Federated Hermes Kaufmann Fund II
Concentration Risk [Line Items]
Concentration risk	12.00%	9.00%	11.00%	9.00%
Federated Hermes Government Obligations Fund
Concentration Risk [Line Items]
Concentration risk	5.00%	14.00%	5.00%	13.00%

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- Definition

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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