Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ (78,733)	$ (407,088)	$ (51,396)
Available-for-sale securities:
Change in net unrealized gains or losses	49	11	(7)
Unrealized gain (loss) on available-for-sale securities	49	11	(7)
Currency translation adjustments:
Change in currency translation adjustments	(19)	5	42
Reclassification adjustments for net (gains) losses included in net income	44	(8)
Net changes related to currency translation adjustments	25	(3)	42
Other comprehensive income (loss), net of tax	74	8	35
Total comprehensive income (loss)	$ (78,659)	$ (407,080)	$ (51,361)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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