v3.26.1
Related-party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2021
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Related Party Transaction [Line Items]            
General and administrative [1]   $ 13,598 $ 10,545 $ 27,122 $ 20,692  
Development and commercialization expenses $ 1,000          
Research and development cost $ 10,000 64,330 [2] 59,735 [2] 122,142 [2] 106,560 [2]  
Related Party            
Related Party Transaction [Line Items]            
General and administrative     100 100 300  
Amount owed to Flagship   100   100   $ 200
Flagship Pioneering | Related Party            
Related Party Transaction [Line Items]            
General and administrative   100 100 200 300  
Amount owed to Flagship   100   100   100
Cellarity            
Related Party Transaction [Line Items]            
Related party expenses       100    
Accounts payable           $ 100
Cellarity | Maximum            
Related Party Transaction [Line Items]            
Related party expenses     $ 100   $ 300  
Accounts payable   $ 100   $ 100    
[1] Includes related party amounts of $0.1 million and $0.2 million for the three and six months ended June 30, 2026, and $0.1 million and $0.3 million for the three and six months ended June 30, 2025. See Note 14 for details of related party amounts.
[2] Includes related party amounts of $0.1 million for the six months ended June 30, 2026, and $0.1 million and $0.3 million for the three and six months ended June 30, 2025. See Note 14 for details of related party amounts.