CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 161.1	$ 146.4	$ 526.6	$ 485.4
Foreign currency translation	(172.3)	(2.9)	(304.5)	(6.7)
Unrealized (loss) gain on available-for-sale debt securities, net of tax	(0.4)	(0.1)	(1.6)	0.2
Comprehensive (loss) income	$ (11.6)	$ 143.4	$ 220.5	$ 478.9