CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Research and development	$ 29,067	$ 20,393
General and administrative	14,126	10,470
Total operating expenses	43,193	30,863
Loss from operations	(43,193)	(30,863)
Total other income (loss), net:
Interest income	148	505
Other (loss) income, net	(818)	(565)
Loss before income taxes	(43,863)
Income tax expense	0	0
Net loss	$ (43,863)	$ (30,923)
Net loss per share — basic and diluted	$ (0.69)	$ (0.50)
Weighted-average common shares outstanding — basic and diluted	63,993,053	62,193,734
Comprehensive loss:
Net loss	$ (43,863)	$ (30,923)
Other comprehensive income (loss), net of tax:
Unrealized (loss) gain on available-for-sale securities	(195)	42
Foreign currency translation adjustment	0	83
Total other comprehensive (loss) income	(195)	125
Comprehensive loss	$ (44,058)	$ (30,798)