Segments - Geographic Information (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net sales:
Net sales	$ 1,260.3	$ 1,186.2	$ 1,155.2	$ 1,131.0	$ 1,227.8	$ 1,131.3	$ 1,070.3	$ 1,032.2	$ 4,732.7	$ 4,461.6	$ 4,211.3
Total long-lived assets:
Long-lived assets	1,275.6				1,214.3				1,275.6	1,214.3
North America
Net sales:
Net sales									2,548.9	2,415.0	2,237.8
Total long-lived assets:
Long-lived assets	726.0				639.6				726.0	639.6
EMEA
Net sales:
Net sales									1,038.0	984.7	962.7
Total long-lived assets:
Long-lived assets	270.5				274.1				270.5	274.1
Latin America
Net sales:
Net sales									417.1	409.3	396.8
Total long-lived assets:
Long-lived assets	67.3				74.6				67.3	74.6
APAC
Net sales:
Net sales									728.7	652.6	$ 614.0
Total long-lived assets:
Long-lived assets	$ 211.8				$ 226.0				$ 211.8	$ 226.0