CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (22,977)	$ (21,440)
Other comprehensive income, net of tax:
Unrealized gains on available-for-sale securities	113	21
Other comprehensive income	113	21
Comprehensive loss	$ (22,864)	$ (21,419)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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