Defined Contribution Plans, Pension and Other Post-Retirement Benefit Plans - Amounts Recognized Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension and Other Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 15,219	$ 14,974	$ 16,485
Prior service cost	63	69	75
Amount recognized in AOCI	15,282	15,043	16,560
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	14,134	8,784	10,227
Prior service cost	0	0	0
Amount recognized in AOCI	$ 14,134	$ 8,784	$ 10,227