Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Accumulated other comprehensive income (loss)	Consolidated Entity Excluding Consolidated Funds Total stockholders’ equity	Consolidated Entity Excluding Consolidated Funds Common stock	Consolidated Entity Excluding Consolidated Funds Additional paid-in capital	Consolidated Entity Excluding Consolidated Funds Retained earnings (deficit)	Consolidated Entity Excluding Consolidated Funds Accumulated other comprehensive income (loss)	Consolidated Funds
Beginning balance (in shares) at Dec. 31, 2022				41.4
Beginning balance at Dec. 31, 2022		$ (10.6)	$ (21.6)	$ 0.0	$ 1.5	$ (12.5)	$ (10.6)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				0.3
Repurchase of common stock including excise taxes (in shares)				(0.3)
Repurchase of common stock including excise taxes			(5.1)		(0.3)	(4.8)
Equity-based compensation			1.2		1.2
Foreign currency translation adjustment, net of tax	$ 1.4		1.4				1.4
Amortization related to derivative securities, net of tax			2.5				2.5
Withholding tax related to restricted stock vesting	(2.4)		(2.4)		(2.4)
Dividends			(1.6)			(1.6)
Net income	65.8		65.8			65.8
Ending balance (in shares) at Dec. 31, 2023				41.4
Ending balance at Dec. 31, 2023		(6.7)	40.2	$ 0.0	0.0	46.9	(6.7)
Beginning balance at Dec. 31, 2022								$ 0.0
Increase (Decrease) in redeemable non-controlling interest in consolidated Funds
Capital contributions	9.9							9.9
Net de-consolidation of Funds								(1.9)
Net income attributable to redeemable non-controlling interests in consolidated Funds	1.3							1.3
Ending balance at Dec. 31, 2023								9.3
Beginning balance at Dec. 31, 2022	(21.6)
Increase (Decrease) in total equity and redeemable non-controlling interest in consolidated Funds
Repurchase of common stock	(5.1)
Capital contributions	9.9							9.9
Equity-based compensation	1.2
Foreign currency translation adjustment, net of tax	1.4
Amortization related to derivative securities, net of tax	2.5
Withholding tax related to restricted stock vesting	(2.4)		(2.4)		(2.4)
Net de-consolidation of Funds	(1.9)
Dividends	(1.6)
Net income	67.1
Ending balance at Dec. 31, 2023	49.5
Increase (Decrease) in Stockholders' Equity
Issuance of common stock (in shares)				0.5
Issuance of common stock			0.1		0.1
Repurchase of common stock including excise taxes (in shares)				(4.4)
Repurchase of common stock including excise taxes			(95.6)		(0.4)	(95.2)
Equity-based compensation			0.9		0.9
Foreign currency translation adjustment, net of tax	(0.4)		(0.4)				(0.4)
Amortization related to derivative securities, net of tax			2.7				2.7
Withholding tax related to restricted stock vesting	(11.4)		(11.4)		(0.6)	(10.8)
Dividends			(1.5)			(1.5)
Net income	85.0		85.0			85.0
Ending balance (in shares) at Dec. 31, 2024				37.5
Ending balance at Dec. 31, 2024		(4.4)	20.0	$ 0.0	0.0	24.4	(4.4)
Increase (Decrease) in redeemable non-controlling interest in consolidated Funds
Capital contributions	56.0							56.0
Net income attributable to redeemable non-controlling interests in consolidated Funds	1.8							1.8
Ending balance at Dec. 31, 2024								67.1
Increase (Decrease) in total equity and redeemable non-controlling interest in consolidated Funds
Issuance of common stock	0.1
Repurchase of common stock	(95.6)
Capital contributions	56.0							56.0
Equity-based compensation	0.9
Foreign currency translation adjustment, net of tax	(0.4)
Amortization related to derivative securities, net of tax	2.7
Withholding tax related to restricted stock vesting	(11.4)		(11.4)		(0.6)	(10.8)
Dividends	(1.5)
Net income	86.8
Ending balance at Dec. 31, 2024	87.1
Increase (Decrease) in Stockholders' Equity
Repurchase of common stock including excise taxes (in shares)				(1.8)
Repurchase of common stock including excise taxes			(48.4)		(1.7)	(46.7)
Equity-based compensation			2.9		2.9
Foreign currency translation adjustment, net of tax	0.7		0.7				0.7
Amortization related to derivative securities, net of tax			7.1				7.1
Withholding tax related to restricted stock vesting	(0.2)		(0.2)		(0.2)
Dividends			(1.5)			(1.5)
Net income	80.0		80.0			80.0
Ending balance (in shares) at Dec. 31, 2025				35.7
Ending balance at Dec. 31, 2025		$ 3.4	60.6	$ 0.0	1.0	$ 56.2	$ 3.4
Increase (Decrease) in redeemable non-controlling interest in consolidated Funds
Capital contributions	141.3							141.3
Net de-consolidation of Funds								(211.6)
Net income attributable to redeemable non-controlling interests in consolidated Funds	26.6							26.6
Ending balance at Dec. 31, 2025								23.4
Increase (Decrease) in total equity and redeemable non-controlling interest in consolidated Funds
Repurchase of common stock	(48.4)
Capital contributions	141.3							$ 141.3
Equity-based compensation	2.9
Foreign currency translation adjustment, net of tax	0.7
Amortization related to derivative securities, net of tax	7.1
Withholding tax related to restricted stock vesting	(0.2)		$ (0.2)		$ (0.2)
Net de-consolidation of Funds	(211.6)
Dividends	(1.5)
Net income	106.6
Ending balance at Dec. 31, 2025	$ 84.0