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
Statement of Comprehensive Income [Abstract]
Net loss	$ (43,839)	$ (30,208)	$ (80,731)	$ (60,233)
Other comprehensive loss:
Unrealized loss on available-for-sale securities	(306)	(20)	(771)	(29)
Comprehensive loss	$ (44,145)	$ (30,228)	$ (81,502)	$ (60,262)