Employee Benefit Plans - Change in Plan Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at the beginning of the year	$ 4,752	$ 2,156
Actual return	355	259
Employer contribution	903	2,567
Benefits paid	(851)	(105)
Effect of exchange rate changes	(236)	(125)
Plan assets at the ending of the year	$ 4,923	4,752
Benefit payments made directly by company		$ 644