Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (115,254)	$ (110,078)	$ (40,696)
Other comprehensive income (loss):
Change in unrealized (loss) gain on available-for-sale debt securities	(401)	(62)	185
Comprehensive loss	$ (115,655)	$ (110,140)	$ (40,511)

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

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+ Details