Employee Benefits - Amounts Expected to be Recognized in Net Periodic Cost (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	$ 5,181
Prior service cost (credit) recognition	31
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	14,344
Prior service cost (credit) recognition	(696)
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss recognition	1,513
Prior service cost (credit) recognition	$ (6,334)