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Collaborative and Other Relationships - Summary of Activity Related to Sage Therapeutics (Details) - Sage Therapeutics - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2023
Forecast |  |  |
Collaborative arrangements and non-collaborative arrangement transactions |  |  |
Potential future milestone payments commitment to third party |  |  | $ 225.0
Research and development |  |  |
Collaborative arrangements and non-collaborative arrangement transactions |  |  |
Expense incurred by the collaboration | $ 34.8 | $ 38.7 |
Expense reflected within statements of income | 17.4 | 19.4 |
Selling, general and administrative |  |  |
Collaborative arrangements and non-collaborative arrangement transactions |  |  |
Expense incurred by the collaboration | 38.2 | 18.4 |
Expense reflected within statements of income | $ 19.1 | $ 9.2 |

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