Goodwill and Intangible Assets - Schedule of Changes to Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 10,503	$ 11,152
Translation adjustment	(493)	(649)
Ending balance	$ 10,010	$ 10,503