Supplemental Financial Statement Information - Changes in Accumulated Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (1,546.0)	$ (156.6)
Ending balance	(2,968.8)	(1,546.0)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(270.3)	(165.8)
Other comprehensive income (loss)	37.9	(104.3)
Amounts reclassified from AOCL	0.0	(0.2)
Ending balance	(232.4)	(270.3)
Defined Benefit Plan Activity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(14.8)	(13.4)
Other comprehensive income (loss)	(0.1)	(1.4)
Amounts reclassified from AOCL	0.0	0.0
Ending balance	(14.9)	(14.8)
Hedging Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(11.2)	(27.2)
Other comprehensive income (loss)	(8.2)	16.0
Ending balance	(19.4)	(11.2)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(296.3)	(206.4)
Ending balance	$ (266.7)	$ (296.3)