CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue
Total Revenue	$ 1,632,093	$ 1,609,574	$ 1,445,814
Operating Expenses
Compensation and Related	540,486	563,388	512,713
Distribution	382,327	371,198	314,554
Systems and Communications	92,515	84,203	77,783
Professional Service Fees	78,353	69,514	57,747
Office and Occupancy	39,946	45,069	43,361
Advertising and Promotional	24,090	22,992	20,931
Travel and Related	15,399	15,409	12,456
Intangible Asset Related	79,361	13,870	44,066
Other	18,149	36,382	25,407
Total Operating Expenses	1,270,626	1,222,025	1,109,018
Operating Income	361,467	387,549	336,796
Nonoperating Income (Expenses)
Investment Income, net	26,065	22,559	8,973
Gain (Loss) on Securities, net	6,603	13,181	(28,696)
Debt Expense	(12,665)	(12,519)	(11,073)
Other, net	139	562	222
Total Nonoperating Income (Expenses), net	20,142	23,783	(30,574)
Income Before Income Taxes	381,609	411,332	306,222
Income Tax Provision	113,179	106,551	71,658
Net Income Including the Noncontrolling Interests in Subsidiaries	268,430	304,781	234,564
Less: Net Income (Loss) Attributable to the Noncontrolling Interests in Subsidiaries	116	5,801	(4,932)
Net Income	$ 268,314	$ 298,980	$ 239,496
Amounts Attributable to Federated Hermes, Inc.
Earning per common share - basic (usd per share)	$ 3.23	$ 3.40	$ 2.65
Earnings per common share—diluted (usd per share)	3.23	3.40	2.65
Cash dividends per share (usd per share)	$ 2.21	$ 1.11	$ 1.08
Investment Advisory Fees, net | Affiliates
Revenue
Total Revenue	$ 857,444	$ 870,831	$ 772,993
Investment Advisory Fees, net | Nonrelated Party
Revenue
Total Revenue	240,422	244,952	238,638
Administrative Service Fees, net—Affiliates | Affiliates
Revenue
Total Revenue	387,531	343,332	294,557
Other Service Fees, net | Affiliates
Revenue
Total Revenue	128,725	134,429	121,383
Other Service Fees, net | Nonrelated Party
Revenue
Total Revenue	$ 17,971	$ 16,030	$ 18,243