v3.26.3
License, Acquisitions and Other Agreements - Taldefgrobep Alfa License Agreement (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
License and other agreements        
Milestone payment to be paid upon regulatory achievement $ 711,600,000   $ 711,600,000  
Research and development 101,850,000 $ 141,169,000 306,491,000 $ 513,120,000
BMS        
License and other agreements        
Research and development 0 $ 0 0 $ 0
BMS | Taldefgrobep Alfa License Agreement        
License and other agreements        
Milestone payment to be paid upon regulatory achievement $ 200,000,000   $ 200,000,000