Stockholders' Equity - Schedule of Accumulated Other Comprehensive Loss Balances, Net of Tax (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	$ 6,044.2
Net current period other comprehensive income (loss)	123.8	$ (308.1)	$ 41.0
Ending balance	6,339.6	6,044.2
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	0.0	(4.8)
Net current period other comprehensive income (loss)	0.0	4.8
Ending balance	0.0	0.0	(4.8)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(549.0)	(237.4)
Net current period other comprehensive income (loss)	124.5	(311.6)
Ending balance	(424.5)	(549.0)	(237.4)
Defined Benefit Obligation [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(1.1)	0.2
Net current period other comprehensive income (loss)	(0.7)	(1.3)
Ending balance	(1.8)	(1.1)	0.2
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance	(550.1)	(242.0)
Net current period other comprehensive income (loss)	123.8	(308.1)
Ending balance	$ (426.3)	$ (550.1)	$ (242.0)