Collaborative and Other Relationships - Sage Therapeutics, Inc. (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2025 |
|
| Collaborative arrangements and non-collaborative arrangement transactions | |||||
| Collaboration profit sharing/(loss reimbursement) | $ 87.2 | $ 69.3 | $ 220.3 | $ 197.3 | |
| 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) | $ 20.7 | $ 9.0 | $ 48.6 | $ 20.5 | |
| Forecast | Sage Therapeutics | |||||
| Collaborative arrangements and non-collaborative arrangement transactions | |||||
| Potential future milestone payments commitment to third party | $ 75.0 | ||||