Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss Balances, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 6,339.6
Net current period other comprehensive loss	(47.6)	$ 42.1
Ending balance	6,434.2
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(424.5)
Net current period other comprehensive loss	(47.6)
Ending balance	(472.1)
Defined Benefit Obligation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(1.8)
Net current period other comprehensive loss	0.0
Ending balance	(1.8)
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(426.3)
Net current period other comprehensive loss	(47.6)
Ending balance	$ (473.9)