Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Total revenue	$ 96.3	$ 95.5	$ 188.1	$ 207.7
Operating expenses:
Compensation and benefits	48.5	27.0	97.6	73.8
General and administrative expense	21.8	16.5	40.2	33.4
Depreciation and amortization	4.4	5.3	8.2	10.6
Total operating expenses	75.9	48.8	147.9	117.8
Operating income	20.4	46.7	40.2	89.9
Non-operating income and (expense):
Investment income (loss)	0.2	(0.7)	0.5	(0.8)
Interest income	1.5	0.1	2.6	0.1
Interest expense	(5.4)	(4.8)	(10.3)	(11.3)
Loss on extinguishment of debt	0.0	0.0	0.0	(3.2)
Total non-operating loss	(3.4)	(5.4)	(6.1)	(15.2)
Income before income taxes	17.0	41.3	34.1	74.7
Income tax expense	5.5	12.7	10.6	22.3
Net income	11.5	28.6	23.5	52.4
Net income attributable to non-controlling interests in consolidated Funds	0.1	0.0	0.1	0.0
Net income attributable to controlling interests	$ 11.4	$ 28.6	$ 23.4	$ 52.4
Earnings per share (basic) attributable to controlling interests (in dollars per share)	$ 0.27	$ 0.69	$ 0.56	$ 1.23
Earnings per share (diluted) attributable to controlling interests (in dollars per share)	$ 0.27	$ 0.67	$ 0.55	$ 1.19
Weighted average common stock outstanding (in shares)	41,484,303	41,425,555	41,464,362	42,690,683
Weighted average diluted common stock outstanding (in shares)	42,645,419	42,518,125	42,678,109	43,915,806
Consolidated Funds
Revenue:
Total revenue	$ 1.3	$ 0.0	$ 2.0	$ 0.0
Operating expenses:
Total operating expenses	1.2	0.0	1.9	0.0
Non-operating income and (expense):
Investment income (loss)	0.5		1.6
Net consolidated Funds’ investment gains	0.3	0.0	1.1	0.0
Management fees
Revenue:
Revenue:	92.8	93.5	183.4	195.7
Performance fees
Revenue:
Revenue:	$ 2.2	$ 2.0	$ 2.7	$ 12.0