CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
Revenue		$ 4,595	$ 33,193	$ 9,303
Operating expenses:
Research and development	$ 32,073	25,603	61,439	48,152
General and administrative	11,074	9,265	21,834	18,631
Total operating expenses	43,147	34,868	83,273	66,783
Loss from operations	(43,147)	(30,273)	(50,080)	(57,480)
Other income (expense), net	(853)	(434)	(1,870)	(898)
Net loss	$ (44,000)	$ (30,707)	$ (51,950)	$ (58,378)
Net loss per share, basic (in dollars per share)	$ (1.06)	$ (0.84)	$ (1.31)	$ (1.60)
Net loss per share, diluted (in dollars per share)	$ (1.06)	$ (0.84)	$ (1.31)	$ (1.60)
Weighted average common shares outstanding, basic (in shares)	41,622,392	36,582,708	39,550,991	36,482,132
Weighted average common shares outstanding, diluted (in shares)	41,622,392	36,582,708	39,550,991	36,482,132
Comprehensive loss:
Net loss	$ (44,000)	$ (30,707)	$ (51,950)	$ (58,378)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities	73	(14)	(44)	11
Total other comprehensive income (loss)	73	(14)	(44)	11
Comprehensive loss	$ (43,927)	$ (30,721)	$ (51,994)	$ (58,367)