Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 206.0	$ 319.8	$ 151.9
Other comprehensive income (loss), net of income tax:
Foreign currency translation adjustments	41.1	(29.1)	(21.7)
Total comprehensive income	247.1	290.7	130.2
Total comprehensive income (loss) attributable to:
Controlling interests	247.6	290.6	130.2
Non-controlling interests	0.0	0.1	0.0
Redeemable non-controlling interests	(0.5)	0.0	0.0
Total comprehensive income	$ 247.1	$ 290.7	$ 130.2