Consolidated Statements of Operations (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenues:
Total revenue	$ 551,344	$ 511,579
Expenses:
Subadvisory, distribution and other asset management costs	47,532	46,768
Software royalties and other information processing costs	9,081	8,471
Compensation, benefits and other personnel	190,784	192,916
Stock-based compensation	14,138	11,059
Consulting, outsourcing and professional fees	56,001	51,976
Data processing and computer related	39,319	37,160
Facilities, supplies and other costs	18,755	18,603
Amortization	10,710	10,386
Depreciation	7,927	8,389
Total expenses	394,247	385,728
Income from operations	157,097	125,851
Net gain from investments	493	2,256
Interest and dividend income	10,221	10,819
Interest expense	(185)	(139)
Equity in earnings of unconsolidated affiliate	28,747	31,643
Income before income taxes	196,373	170,430
Income taxes	44,856	39,030
Net income	$ 151,517	$ 131,400
Basic earnings per common share (in USD per share)	$ 1.20	$ 1.00
Shares used to compute basic earnings per share (in shares)	126,561	131,417
Diluted earnings per common share (in USD per share)	$ 1.17	$ 0.99
Shares used to compute diluted earnings per share (in shares)	129,450	132,745
Asset management, administration and distribution fees
Revenues:
Total revenue	$ 432,143	$ 404,366
Information processing and software servicing fees
Revenues:
Total revenue	$ 119,201	$ 107,213