Defined Contribution Plans, Pension and Other Post-Retirement Benefit Plans - Amounts Recognized Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 15,471	$ 17,105	$ 8,014
Prior service cost	0	0	0
Amount recognized in AOCI	15,471	17,105	8,014
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	8,784	10,227	10,130
Prior service cost		0	0
Amount recognized in AOCI	8,784	10,227	10,130
Other Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(497)	(620)	(682)
Prior service cost	69	75	81
Amount recognized in AOCI	$ (428)	$ (545)	$ (601)