Employee Benefit Plans - Summary of Projected Benefit Obligation Information for Pension Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Accumulated benefit obligation at measurement date	$ 950	$ 1,011
Effect of salary increases	494	526
Projected benefit obligation at measurement date	1,444	1,537
Projected benefit obligation at date of acquisition	1,537	1,549
Service and interest costs	103	35
Actuarial gains (losses)	(15)	94
Benefits paid	(22)
Effect of foreign currency translation gains and other	(159)	(141)
Projected benefit obligation at measurement date	$ 1,444	$ 1,537