Income Taxes - Changes Occurred in Amount of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Beginning balance of unrecognized tax benefits	$ 54.1	$ 52.7	$ 48.9
Additions for current year tax positions	8.8	9.2	9.7
Additions for prior year tax positions	2.2	5.1	1.3
Reductions for prior year tax positions	(3.7)	(2.3)	(0.6)
Reductions for audit settlements	(1.8)	(5.2)	(4.7)
Reductions for the expiration of statutes of limitations	(6.2)	(4.1)	(2.1)
Changes due to foreign currency translation adjustments	(3.7)	(1.3)	0.2
Ending balance of unrecognized tax benefits (excluding interest and penalties)	49.7	54.1	52.7
Interest and penalties associated with unrecognized tax benefits	22.8	18.4	13.2
Ending balance of unrecognized tax benefits (including interest and penalties)	$ 72.5	$ 72.5	$ 65.9