Income Taxes - Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Domestic	$ 1,471	$ 51,089	$ 48,327
Foreign	(3,419)	(4,845)	177
Income (loss) before provision for income taxes	$ (1,948)	$ 46,244	$ 48,504