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Employee Benefit Plans - Schedule of Changes to Post-Employment Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]    
Beginning balance $ 6,024 $ 6,920
Amounts accrued 53 1,111
Payments to employees/government managed plan (266) (1,186)
Foreign currency impacts (622) (821)
Ending balance $ 5,189 $ 6,024