Revenue from Contracts with Customers - Disaggregation of Revenue by Product Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total Revenue	$ 1,632,093	$ 1,609,574	$ 1,445,814
Federated Hermes Funds
Disaggregation of Revenue [Line Items]
Total Revenue	1,373,700	1,348,591	1,188,933
Separate Accounts
Disaggregation of Revenue [Line Items]
Total Revenue	240,422	244,952	238,638
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 17,971	$ 16,031	$ 18,243