CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ 54,561	$ (15,629)
Other comprehensive income (loss), before taxes:
Share of other comprehensive (loss) income of equity method investments	(31)	113
Reclassification adjustment for sale of equity method investments	6	0
Total comprehensive income (loss)	$ 54,536	$ (15,516)