Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 86.8	$ 67.1	$ 100.6
Other comprehensive income:
Amortization related to derivative securities, net of tax	2.7	2.5	3.3
Foreign currency translation adjustment, net of tax	(0.4)	1.4	(3.1)
Other comprehensive income (loss)	2.3	3.9	0.2
Total comprehensive income	89.1	71.0	100.8
Comprehensive income attributable to non-controlling interests in consolidated Funds	1.8	1.3	0.0
Total comprehensive income attributable to controlling interests	$ 87.3	$ 69.7	$ 100.8