Defined Contribution Plans, Pension and Other Post-Retirement Benefit Plans - Pension and Other Post-Retirement Benefit Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension and Other Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 126	$ 135	$ 84
Interest cost	1,878	1,864	1,915
Expected return on plan assets	(2,719)	(2,673)	(2,514)
Amortization of prior service cost	6	6	6
Recognized actuarial loss (gain)	308	336	1
Net periodic (benefit) cost	(401)	(332)	(508)
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	1,370	1,470	1,758
Expected return on plan assets	(1,520)	(1,597)	(1,891)
Amortization of prior service cost	0	0	0
Recognized actuarial loss (gain)	210	275	249
Net periodic (benefit) cost	$ 60	$ 148	$ 116