Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Research and development	[1]	$ 89,169	$ 45,247	$ 215,083	$ 127,015
General and administrative	[2]	16,550	11,641	47,916	35,375
Related Party
Research and development		100	7,000	3,200	9,600
General and administrative		$ 300	$ 300	$ 800	$ 800

[1] Includes related party expenses of $0.1 million and $7.0 million for the three months ended September 30, 2026 and 2025, respectively. Includes related party expenses of $3.2 million and $9.6 million for the nine months ended September 30, 2026 and 2025, respectively.

[2] Includes related party expenses of $0.3 million for the three months ended September 30, 2026 and 2025, and $0.8 million for the nine months ended September 30, 2026 and 2025.