Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 298.1	$ 295.5	$ 888.5	$ 888.6
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments (net of tax of $0.0 in 2024 and 2023)	17.4	(14.6)	(2.3)	(6.7)
Comprehensive income	$ 315.5	$ 280.9	$ 886.2	$ 881.9