Segments - Geographic Information (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net sales:
Net sales	$ 1,227.8	$ 1,131.3	$ 1,070.3	$ 1,032.2	$ 1,101.4	$ 1,065.1	$ 1,038.9	$ 1,005.9	$ 4,461.6	$ 4,211.3	$ 4,410.3
Total long-lived assets:
Long-lived assets	1,214.3				1,065.0				1,214.3	1,065.0
North America
Net sales:
Net sales									2,415.0	2,237.8	2,315.2
Total long-lived assets:
Long-lived assets	639.6				633.5				639.6	633.5
EMEA
Net sales:
Net sales									984.7	962.7	1,033.1
Total long-lived assets:
Long-lived assets	274.1				213.3				274.1	213.3
Latin America
Net sales:
Net sales									409.3	396.8	423.3
Total long-lived assets:
Long-lived assets	74.6				68.7				74.6	68.7
APAC
Net sales:
Net sales									652.6	614.0	$ 638.7
Total long-lived assets:
Long-lived assets	$ 226.0				$ 149.5				$ 226.0	$ 149.5