Condensed 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
Operating expenses:
Research and development	$ 28,365	$ 22,656	$ 53,919	$ 41,409
General and administrative	10,116	8,186	19,906	15,088
Total operating expenses	38,481	30,842	73,825	56,497
Loss from operations	(38,481)	(30,842)	(73,825)	(56,497)
Other income:
Other income and interest income	552	51	897	144
Net loss and net loss attributable to common stockholders	$ (37,929)	$ (30,791)	$ (72,928)	$ (56,353)
Net loss per share attributable to common stockholders, basic	$ (0.66)	$ (0.55)	$ (1.28)	$ (1.01)
Net loss per share attributable to common stockholders, diluted	$ (0.66)	$ (0.55)	$ (1.28)	$ (1.01)
Weighted average common shares outstanding, basic	57,149,474	56,318,025	57,107,917	55,843,348
Weighted average common shares outstanding, diluted	57,149,474	56,318,025	57,107,917	55,843,348
Comprehensive loss:
Net loss	$ (37,929)	$ (30,791)	$ (72,928)	$ (56,353)
Other comprehensive loss:
Unrealized losses on marketable securities	(339)	(6)	(339)	(5)
Comprehensive loss	$ (38,268)	$ (30,797)	$ (73,267)	$ (56,358)