Restructuring Charges - Roll Forward (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 22.5	$ 6.2	$ 4.5
Restructuring charges	16.4	27.4	13.8
Currency translation and other adjustments	(0.3)	0.0	(0.7)
Cash payments / utilization	(17.6)	(11.1)	(11.4)
Restructuring reserve, ending balance	21.0	22.5	6.2
Corporate
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.4	0.0	0.0
Restructuring charges	0.6	0.8	0.6
Currency translation and other adjustments	0.0	0.0	0.0
Cash payments / utilization	(0.7)	(0.4)	(0.6)
Restructuring reserve, ending balance	0.3	0.4	0.0
Americas
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	2.8	0.3	0.5
Restructuring charges	4.6	4.7	0.5
Currency translation and other adjustments	(0.1)	(0.1)	(0.1)
Cash payments / utilization	(4.0)	(2.1)	(0.6)
Restructuring reserve, ending balance	3.3	2.8	0.3
International
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	19.3	5.9	4.0
Restructuring charges	11.2	21.9	12.7
Currency translation and other adjustments	(0.2)	0.1	(0.6)
Cash payments / utilization	(12.9)	(8.6)	(10.2)
Restructuring reserve, ending balance	$ 17.4	$ 19.3	$ 5.9