Summary of Significant Accounting Policies - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Revenue	$ 5,000		$ 0		$ 5,000	$ 0
Share-based compensation expense	2,845		1,597		5,400	2,544
Total operating expenses	21,857		14,352		38,788	30,440
Loss from operations	(16,857)		(14,352)		(33,788)	(30,440)
Other income (expense)	199		1,635		188	287
Interest income	2,246		2,463		4,569	3,251
Net loss before income taxes	(14,412)		(10,254)		(29,031)	(26,902)
Income tax expense	500		0		500	0
Net loss	(14,912)	$ (14,619)	(10,254)	$ (16,648)	(29,531)	(26,902)
Reportable Segment
Segment Reporting Information [Line Items]
Revenue	5,000		0		5,000	0
Research and development expense	8,334		6,583		13,499	16,926
Selling, general and administrative expense	10,678		6,172		19,889	10,970
Share-based compensation expense	2,845		1,597		5,400	2,544
Total operating expenses	21,857		14,352		38,788	30,440
Loss from operations	(16,857)		(14,352)		(33,788)	(30,440)
Other income (expense)	199		1,635		188	287
Interest income	2,246		2,463		4,569	3,251
Net loss	$ (14,912)		$ (10,254)		$ (29,531)	$ (26,902)