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Revenue from Contracts with Customers - Disaggregation of Revenue by Product Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Revenue	$ 324,764	$ 341,173
Federated Hermes Funds
Disaggregation of Revenue [Line Items]
Total Revenue	257,335	274,005
Separate Accounts
Disaggregation of Revenue [Line Items]
Total Revenue	62,773	63,855
Other
Disaggregation of Revenue [Line Items]
Total Revenue	$ 4,656	$ 3,313

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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