Accumulated Other Comprehensive Income (Loss) - Reclassification out of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		$ 1,823.5	$ 1,904.1	$ 1,812.4
Other comprehensive income (loss) before reclassifications		(10.3)	0.8	6.9
Reclassifications out of other comprehensive income (loss)		(1.6)	(2.6)	0.0
Ending balance		1,992.5	1,823.5	1,904.1
AOCI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	[1]	(14.3)	(12.5)	(19.4)
Ending balance	[1]	(26.2)	(14.3)	(12.5)
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(19.5)	(22.2)	(15.3)
Other comprehensive income (loss) before reclassifications		(11.0)	2.7	(6.9)
Reclassifications out of other comprehensive income (loss)		0.0	0.0	0.0
Ending balance		(30.5)	(19.5)	(22.2)
Derivative Financial Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		5.2	9.7	(4.1)
Other comprehensive income (loss) before reclassifications		0.7	(1.9)	13.8
Reclassifications out of other comprehensive income (loss)		(1.6)	(2.6)	0.0
Ending balance		$ 4.3	$ 5.2	$ 9.7

[1] Accumulated Other Comprehensive Income (Loss) (“AOCI”). 3.See Note 7 for additional information.