Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue:
Total revenue	$ 144.2	$ 123.1	$ 391.5	$ 337.8
Operating expenses:
Total operating expenses	117.6	96.1	316.8	267.3
Operating income	26.6	27.0	74.7	70.5
Non-operating income and (expense):
Investment income	0.0	1.5	0.1	2.5
Interest income	0.9	0.6	2.8	2.8
Interest expense	(4.6)	(4.7)	(14.7)	(15.0)
Total non-operating income (loss)	7.8	1.4	15.4	(3.2)
Income before income taxes	34.4	28.4	90.1	67.3
Income tax expense	7.4	9.4	20.2	21.1
Consolidated net income	27.0	19.0	69.9	46.2
Net income attributable to redeemable non-controlling interests in consolidated Funds	11.9	2.1	24.6	3.7
Net income attributable to controlling interests	$ 15.1	$ 16.9	$ 45.3	$ 42.5
Earnings per share (basic) attributable to controlling interests (in dollars per share)	$ 0.42	$ 0.46	$ 1.25	$ 1.12
Earnings per share (diluted) attributable to controlling interests (in dollars per share)	$ 0.42	$ 0.45	$ 1.25	$ 1.10
Weighted average common stock outstanding (in shares)	35,806,742	37,070,795	36,354,715	37,891,015
Weighted average diluted common stock outstanding (in shares)	35,846,621	37,794,164	36,379,908	38,585,072
Management fees
Revenue:
Total revenue	$ 136.1	$ 112.1	$ 371.3	$ 319.8
Consolidated Entity Excluding Consolidated Funds
Operating expenses:
Compensation and benefits	84.7	69.6	229.3	189.9
General and administrative expense	23.5	21.8	67.6	62.9
Depreciation and amortization	4.1	4.5	12.5	14.1
Non-operating income and (expense):
Investment income	0.0	1.5	0.1	2.5
Interest income	0.9	0.6	2.8	2.8
Interest expense	(4.6)	(4.7)	(14.7)	(15.0)
Consolidated net income			69.9	46.2
Consolidated Entity Excluding Consolidated Funds | Management fees
Revenue:
Total revenue	136.1	112.1	371.3	319.8
Consolidated Entity Excluding Consolidated Funds | Performance fees
Revenue:
Total revenue	0.2	10.1	8.1	16.0
Consolidated Funds
Revenue:
Total revenue	7.9	0.9	12.1	2.0
Operating expenses:
Total operating expenses	5.3	0.2	7.4	0.4
Non-operating income and (expense):
Net consolidated Funds’ investment gains	11.5	4.0	27.2	6.5
Net income attributable to redeemable non-controlling interests in consolidated Funds	$ 11.9	$ 2.1	$ 24.6	$ 3.7