Restructuring - Summary of Restructuring Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5,572	$ 2,703	$ 29,214	$ 19,841
North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,321	830	9,243	3,831
Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,341	1,212	14,961	14,465
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	902	606	4,849	1,375
South America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 8	$ 55	$ 161	$ 170