v3.26.1
Collaboration and License Agreements - Schedule of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Revenue $ 75,253 $ 27,767 $ 413,023 $ 572,976
Collaboration and License Agreements        
Disaggregation of Revenue [Line Items]        
Revenue 72,868 27,767 409,522 572,976
Collaboration and License Agreements | GSK        
Disaggregation of Revenue [Line Items]        
Revenue 0 143 0 2,646
Collaboration and License Agreements | Sarepta        
Disaggregation of Revenue [Line Items]        
Revenue 26,395 27,624 297,594 570,330
Collaboration and License Agreements | Novartis        
Disaggregation of Revenue [Line Items]        
Revenue 20,232 0 74,945 0
Collaboration and License Agreements | Sanofi        
Disaggregation of Revenue [Line Items]        
Revenue 1,241 0 11,983 0
Collaboration and License Agreements | Madrigal        
Disaggregation of Revenue [Line Items]        
Revenue $ 25,000 $ 0 $ 25,000 $ 0