Condensed Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net loss	$ (23,982)	$ (37,479)	$ (45,988)	$ (61,400)
Other comprehensive loss:
Unrealized (loss) gain on available-for-sale securities	(246)	49	(875)	0
Comprehensive loss	$ (24,228)	$ (37,430)	$ (46,863)	$ (61,400)

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

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