Condensed Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non-controlling Interests	Total
Balance at Dec. 31, 2016	$ 4	$ 211,275	$ (112,601)	$ (870)	$ 738	$ 98,546
Balance (in shares) at Dec. 31, 2016	38,562					38,562
Issuance of common stock under stock incentive plans		3,624				$ 3,624
Issuance of common stock under stock incentive plans (in shares)	1,195
Shares withheld for taxes		(2,458)				(2,458)
Stock-based compensation expense		7,820				7,820
Non-controlling interest distributions					(125)	(125)
Net loss			(14,897)		267	(14,630)
Other comprehensive (loss) income				(31)	7	(24)
Balance at Jun. 30, 2017	$ 4	$ 220,261	$ (127,498)	$ (901)	$ 887	$ 92,753
Balance (in shares) at Jun. 30, 2017	39,757					39,757