Income Taxes - Schedule of Income Before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments [Abstract]
Domestic	$ (39,623)	$ 997	$ 14,638
Foreign	6,659	(4,093)	1,576
(Loss) income before income taxes	$ (32,964)	$ (3,096)	$ 16,214