v3.26.1
Collaborative and Other Relationships - Sage Therapeutics, Inc. (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Collaborative arrangements and non-collaborative arrangement transactions        
Collaboration profit sharing/(loss reimbursement) $ 68.8 $ 75.0 $ 143.0 $ 133.1
Share of net profit from sage therapeutics, Percent 50.00%   50.00%  
Sage Therapeutics        
Collaborative arrangements and non-collaborative arrangement transactions        
Collaboration profit sharing/(loss reimbursement) $ 23.9 $ 17.8 $ 40.9 $ 27.9