Consolidation - Consolidated Federated Fund VIEs (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Variable Interest Entities [Line Items]
Consolidated VIE assets	$ 1,951,917	$ 2,018,187
Less: Liabilities	929,293	840,968
Variable Interest Entity, Primary Beneficiary
Variable Interest Entities [Line Items]
Less: Liabilities	5,100	1,400
Less: Redeemable Noncontrolling Interests in Subsidiaries	39,000	33,300
Federated Hermes’ Net Interest in VIEs	13,100	18,100
Cash and Cash Equivalents | Variable Interest Entity, Primary Beneficiary
Variable Interest Entities [Line Items]
Consolidated VIE assets	7,400	3,000
Investments—Consolidated Investment Companies | Variable Interest Entity, Primary Beneficiary
Variable Interest Entities [Line Items]
Consolidated VIE assets	35,500	35,900
Other Assets | Variable Interest Entity, Primary Beneficiary
Variable Interest Entities [Line Items]
Consolidated VIE assets	1,000	100
Long-Term Investments | Variable Interest Entity, Primary Beneficiary
Variable Interest Entities [Line Items]
Consolidated VIE assets	$ 13,300	$ 13,800