Commitments and Contingencies - Tradipitant - Additional Information (Detail) - Tradipitant - USD ($) $ in Millions |
12 Months Ended | 129 Months Ended |
|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2022 |
|
| Commitments and Contingencies [Line Items] | ||
| Future percentage of royalty payments based net sales | low double digits | |
| Development and milestone payments to third party | $ 3.0 | |
| Pre-NDA Approval Milestones | ||
| Commitments and Contingencies [Line Items] | ||
| Possible future milestone payment | $ 2.0 | |
| Sales Milestone | ||
| Commitments and Contingencies [Line Items] | ||
| Possible future milestone payment | 80.0 | |
| U.S. | Regulatory Approval Milestone | ||
| Commitments and Contingencies [Line Items] | ||
| Possible future milestone payment | 10.0 | |
| E.U. | Regulatory Approval Milestone | ||
| Commitments and Contingencies [Line Items] | ||
| Possible future milestone payment | $ 5.0 |