Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
License-related revenue	$ 30,000	$ 1,626
Operating expenses:
Research and development	16,624	10,544
General and administrative	6,540	5,641
Total operating expenses	23,164	16,185
Income (loss) from operations	6,836	(14,559)
Interest expense	(682)	(1,024)
Other income (expense), net	45	22
Net income (loss)	$ 6,199	$ (15,561)
Net loss per share attributable to common stockholders— basic (in dollars per share)	$ 0.13	$ (0.37)
Weighted average common shares outstanding— basic (in shares)	48,606,055	41,619,362
Net loss per share attributable to common stockholders— diluted (in dollars per share)	$ 0.13	$ (0.37)
Weighted average common shares outstanding— diluted (in shares)	49,816,784	41,619,362
Comprehensive income (loss):
Net income (loss)	$ 6,199	$ (15,561)
Other comprehensive income (loss):
Unrealized loss on marketable securities, net of tax of 0	(690)	(1)
Comprehensive income (loss)	$ 5,509	$ (15,562)