Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income
Collaboration revenue	$ 29,578	$ 4,853	$ 49,094	$ 155,333
Operating expenses:
Research and development	34,452	21,985	61,544	40,553
General and administrative	10,151	8,294	18,758	17,322
Total operating expenses	44,603	30,279	80,302	57,875
Operating (loss) income	(15,025)	(25,426)	(31,208)	97,458
Other income:
Interest income	4,888	3,274	9,755	5,138
Other income	20	3	20	3
Total other income, net	4,908	3,277	9,775	5,141
(Loss) income before income taxes	(10,117)	(22,149)	(21,433)	102,599
Income tax provision	24	59	38	763
Net (loss) income	(10,141)	(22,208)	(21,471)	101,836
Other comprehensive (loss) income:
Net unrealized (loss) gain on available-for-sale securities	(16)	(1)	(474)	86
Total other comprehensive (loss) income	(16)	(1)	(474)	86
Comprehensive (loss) income	$ (10,157)	$ (22,209)	$ (21,945)	$ 101,922
Net (loss) income per share, basic	$ (0.18)	$ (0.51)	$ (0.37)	$ 2.42
Net (loss) income per share, diluted	$ (0.18)	$ (0.51)	$ (0.37)	$ 2.33
Weighted-average common shares outstanding, basic	57,721,934	43,520,137	57,419,490	42,102,101
Weighted-average common shares outstanding, diluted	57,721,934	43,520,137	57,419,490	43,770,999