CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Collaboration revenue	$ 875	$ 20,558
Operating expenses:
Research and development	33,054	32,074
General and administrative	10,124	10,274
Total operating expenses	43,178	42,348
Loss from operations	(42,303)	(21,790)
Other income:
Interest and other income	2,624	4,441
Total other income	2,624	4,441
Loss before provision for income taxes	(39,679)	(17,349)
Provision for income taxes	38	0
Net loss	$ (39,717)	$ (17,349)
Net loss per share, basic (in dollars per share)	$ (0.95)	$ (0.42)
Net loss per share, diluted (in dollars per share)	$ (0.95)	$ (0.42)
Weighted-average common shares outstanding, basic (in shares)	41,836,275	41,073,732
Weighted-average common shares outstanding, diluted (in shares)	41,836,275	41,073,732
Other comprehensive (loss) income:
Unrealized (loss) gain on marketable securities	$ (406)	$ 480
Total other comprehensive (loss) gain	(406)	480
Total comprehensive loss	$ (40,123)	$ (16,869)