Condensed Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 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		7,993				$ 7,993
Issuance of common stock under stock incentive plans (in shares)	2,226
Shares withheld for taxes		(3,480)				(3,480)
Stock-based compensation expense		11,666				11,666
Non-controlling interest distributions					(125)	(125)
Net loss			(18,347)		477	(17,870)
Other comprehensive income (loss)				58	(18)	40
Balance at Sep. 30, 2017	$ 4	$ 227,454	$ (130,948)	$ (812)	$ 1,072	$ 96,770
Balance (in shares) at Sep. 30, 2017	40,788					40,788