Employee Benefits - Pension and Other Defined Contribution Retirement Plan Expenses (Detail) - Pension Plans - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	$ 400	$ 474
Interest cost on projected benefit obligation	4,263	5,453
Expected return on plan assets	(7,083)	(6,983)
Net amortization and deferrals	1,858	1,275
Net periodic benefit (income) cost	(562)	219
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost for benefits earned	5,940	4,873
Interest cost on projected benefit obligation	3,245	4,435
Expected return on plan assets	(11,614)	(10,904)
Net amortization and deferrals	3,834	2,922
Net periodic benefit (income) cost	$ 1,405	$ 1,326