Revenue from Contracts with Customers - Disaggregation of Revenue by Product Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,609,574	$ 1,445,814	$ 1,300,447
Federated Hermes Funds
Disaggregation of Revenue [Line Items]
Total Revenue	1,348,591	1,188,933	1,024,922
Separate Accounts
Disaggregation of Revenue [Line Items]
Total Revenue	244,952	238,638	259,026
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 16,031	$ 18,243	$ 16,499