Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (Parenthetical) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Research and development	[1]	$ 22,680	$ 15,689	$ 42,252	$ 28,193
General and administrative	[2]	6,816	5,111	14,352	9,701
Third Rock Ventures LLC
Research and development		0	0	0
General and administrative		$ 0	$ 0	$ 0	100
Third Rock Ventures LLC | Maximum
Research and development					$ 100

[1] Includes related party amounts of zero for each of the three months ended June 30, 2025 and 2024, and zero and less than $0.1 million for the six months ended June 30, 2025 and 2024, respectively (see Note 10).

[2] Includes related party amounts of zero for each of the three months ended June 30, 2025 and 2024, and zero and $0.1 million for the six months ended June 30, 2025 and 2024, respectively (see Note 10).