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Revenue from Contracts with Customers - Disaggregation of Revenue by Product Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total Revenue	$ 396,371	$ 382,189
Federated Hermes Funds
Disaggregation of Revenue [Line Items]
Total Revenue	330,941	315,931
Separate Accounts
Disaggregation of Revenue [Line Items]
Total Revenue	61,503	62,093
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 3,927	$ 4,165

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