Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income
Collaboration revenue	$ 24,629	$ 4,614	$ 73,723	$ 159,947
Operating expenses:
Research and development	30,241	25,863	91,785	66,416
General and administrative	8,168	8,258	26,926	25,580
Total operating expenses	38,409	34,121	118,711	91,996
Operating (loss) income	(13,780)	(29,507)	(44,988)	67,951
Other income:
Interest income	4,579	3,429	14,334	8,567
Other income	200		220	3
Total other income, net	4,779	3,429	14,554	8,570
(Loss) income before income taxes	(9,001)	(26,078)	(30,434)	76,521
Income tax provision (benefit)	43	(177)	81	586
Net (loss) income	(9,044)	(25,901)	(30,515)	75,935
Other comprehensive (loss) income:
Net unrealized gain (loss) on available-for-sale securities	489	(115)	15	(29)
Total other comprehensive income (loss)	489	(115)	15	(29)
Comprehensive (loss) income	$ (8,555)	$ (26,016)	$ (30,500)	$ 75,906
Net (loss) income per share, basic	$ (0.16)	$ (0.59)	$ (0.53)	$ 1.85
Net (loss) income per share, diluted	$ (0.16)	$ (0.59)	$ (0.53)	$ 1.78
Weighted-average common shares outstanding, basic	57,851,110	43,864,838	57,564,413	40,962,116
Weighted-average common shares outstanding, diluted	57,851,110	43,864,838	57,564,413	42,610,724