CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (22,262)	$ (59,524)	$ (5,149)
Other comprehensive income (loss), before taxes:
Share of other comprehensive loss of equity method investments	(185)	(246)	0
Total comprehensive loss	$ (22,447)	$ (59,770)	$ (5,149)