Earnings Per Share Attributable to Federated Hermes, Inc. Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator
Net Income Attributable to Federated Hermes, Inc.	$ 298,980	$ 239,496	$ 270,293
Less: Total Net Income Available to Participating Unvested Restricted Shareholders	(13,981)	(11,828)	(10,858)
Total Net Income Attributable to Federated Hermes Common Stock - Basic	284,999	227,668	259,435
Less: Total Net Income Available to Unvested Restricted Shareholders of a Nonpublic Consolidated Subsidiary	0	0	(1,580)
Total Net Income Attributable to Federated Hermes Common Stock - Diluted	$ 284,999	$ 227,668	$ 257,855
Denominator
Basic Weighted-Average Federated Hermes Common Stock (in shares)	83,858	85,762	93,754
Dilutive Impact from Non-forfeitable Restricted Stock (in shares)	5	4	17
Diluted Weighted-Average Federated Hermes Common Stock (in shares)	83,863	85,766	93,771
Net Income Attributable to Federated Hermes Common Stock – Basic (usd per share)	$ 3.40	$ 2.65	$ 2.77
Net Income Attributable to Federated Hermes Common Share—Diluted (usd per share)	$ 3.40	$ 2.65	$ 2.75