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Segment Reporting (Details) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) segment	Sep. 30, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment							1
License revenue	$ 0			$ 1,000			$ 0	$ 1,000
Operating expenses
Total operating expenses	48,023			35,438			146,099	97,541
Operating loss	(48,023)			(34,438)			(146,099)	(96,541)
Other income, net	371			2,087			2,237	6,545
Net loss	(47,652)	$ (49,191)	$ (47,019)	(32,351)	$ (30,498)	$ (27,147)	(143,862)	(89,996)
Reportable Segment
Segment Reporting Information [Line Items]
License revenue	0			1,000			0	1,000
Operating expenses
Compensation and benefits	15,801			13,081			48,139	41,010
Clinical trial and manufacturing	21,559			6,334			51,239	14,172
Facilities and IT	3,481			9,563			21,274	26,125
Other research and development	2,125			1,572			7,083	3,298
Other segment	5,057			4,888			18,364	12,936
Total operating expenses	48,023			35,438			146,099	97,541
Operating loss	(48,023)			(34,438)			(146,099)	(96,541)
Other income, net	371			2,087			2,237	6,545
Net loss	$ (47,652)			$ (32,351)			$ (143,862)	$ (89,996)

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