Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ (15,565)	$ (237,634)	$ (34,095)	$ (253,461)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on available-for-sale securities	18	8	45
Foreign currency translation	2	(32)	13
Total other comprehensive income (loss), net of tax	20	(24)	58
Total comprehensive income (loss)	$ (15,545)	$ (237,658)	$ (34,037)	$ (253,461)

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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