Accounts Receivable - Schedule of Changes in Low Yield Compensation Reserve (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Receivables [Abstract]
Beginning balance	$ (1,100)	$ (1,951)
Reversal (Provisions)	69	(766)
Usage	512	1,563
Translation adjustments	39	54
Ending balance	$ (480)	$ (1,100)