Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss Balances, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 6,044.2
Net current period other comprehensive income (loss)	42.1	$ (28.2)
Ending balance	6,084.0
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(549.0)
Net current period other comprehensive income (loss)	42.0
Ending balance	(507.0)
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(550.1)
Net current period other comprehensive income (loss)	42.1
Ending balance	(508.0)
Defined Benefit Obligation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(1.1)
Net current period other comprehensive income (loss)	0.1
Ending balance	$ (1.0)