CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Collaboration revenue	$ 802	$ 802
Operating expenses:
Research and development	19,988	24,273
General and administrative	8,325	14,147
Total operating expenses	28,313	38,420
Loss from operations	(27,511)	(37,618)
Other income
Gain on sale of business	0	131,249
Interest income	1,469	32
Total other income	1,469	131,281
Income (loss) before income taxes	(26,042)	93,663
Provision for income taxes	0	(967)
Loss from equity method investment	(2,802)	(591)
Net income (loss)	$ (28,844)	$ 92,105
Net income (loss) per share-basic	$ (0.50)	$ 1.61
Net income (loss) per share-diluted	$ (0.50)	$ 1.59
Weighted-average common shares outstanding-basic	57,716,344	57,279,963
Weighted-average common shares outstanding-diluted	57,716,344	57,875,576