Collaborative and Other Relationships - Summary of Activity Related to Sage Therapeutics (Details) - Sage Therapeutics - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Research and development | ||||
| Collaborative arrangements and non-collaborative arrangement transactions | ||||
| Expense incurred by the collaboration | $ (1.7) | $ 8.4 | $ 2.2 | $ 29.6 |
| Expense reflected within statements of income | (0.9) | 4.2 | 1.1 | 14.8 |
| Selling, general and administrative | ||||
| Collaborative arrangements and non-collaborative arrangement transactions | ||||
| Expense incurred by the collaboration | 41.8 | 28.4 | 131.0 | 82.9 |
| Expense reflected within statements of income | $ 20.9 | $ 14.2 | $ 65.5 | $ 41.5 |