Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Collaboration revenue	$ 80,000	$ 880	$ 80,000	$ 1,175
Operating expenses:
Research and development	17,261	17,849	37,034	34,564
General and administrative	10,247	10,323	20,308	21,843
Total operating expenses	27,508	28,172	57,342	56,407
Income (loss) from operations	52,492	(27,292)	22,658	(55,232)
Other income, net	2,917	3,509	5,881	6,670
Net income (loss)	$ 55,409	$ (23,783)	$ 28,539	$ (48,562)
Net income (loss) per share, basic	$ 0.89	$ (0.38)	$ 0.46	$ (0.8)
Net income (loss) per share, diluted	$ 0.87	$ (0.38)	$ 0.45	$ (0.8)
Weighted-average common shares outstanding, basic	62,205	61,794	62,095	60,764
Weighted-average common shares outstanding, diluted	63,587	61,794	63,684	60,764
Comprehensive income (loss):
Net Income (Loss)	$ 55,409	$ (23,783)	$ 28,539	$ (48,562)
Other comprehensive gain (loss):
Unrealized gain (loss) on marketable securities	68	(549)	(230)	(403)
Total other comprehensive gain (loss)	68	(549)	(230)	(403)
Comprehensive income (loss)	$ 55,477	$ (24,332)	$ 28,309	$ (48,965)