Employee Benefit Plans - Summary of Net Plan Asset Information for Pension Plan (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Plan assets at fair value at measurement date	$ 589	$ 655	$ 515	$ 589
Projected benefit obligations at measurement date			(1,444)	(1,537)
Funded status			$ (929)	$ (948)
Plan assets at fair value at date of acquisition	589	655
Actual return on plan assets	9	3
Benefits paid	(22)	(12)
Effect of foreign currency translation gains	(61)	(57)
Plan assets at fair value at measurement date	$ 515	$ 589