CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Collaboration revenue	$ 3,208	$ 33,971
Operating expenses:
Research and development	98,351	93,085
General and administrative	38,138	36,835
Total operating expenses	136,489	129,920
Loss from operations	(133,281)	(95,949)
Other income:
Gain on sale of business	131,249	0
Interest income	3,230	185
Total other income	134,479	185
Income (loss) before income taxes	1,198	(95,764)
Provision for income taxes	(715)	0
Loss from equity method investment	(5,488)	0
Net loss	$ (5,005)	$ (95,764)
Net loss per share-basic	$ (0.09)	$ (1.73)
Net loss per share-diluted	$ (0.09)	$ (1.73)
Weighted average common shares outstanding-basic	57,399,762	55,283,318
Weighted average common shares outstanding-diluted	57,399,762	55,283,318