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Revenue from Contracts with Customers - Disaggregation of Revenue by Product Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total Revenue	$ 408,456	$ 402,656	$ 1,207,410	$ 1,218,077
Federated Hermes Funds
Disaggregation of Revenue [Line Items]
Total Revenue	344,795	337,203	1,014,383	1,021,748
Separate Accounts
Disaggregation of Revenue [Line Items]
Total Revenue	58,869	61,098	179,883	184,106
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 4,792	$ 4,355	$ 13,144	$ 12,223

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