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Commitments and Contingencies - Tradipitant - Additional Information (Detail) - Tradipitant - USD ($) $ in Millions | 12 Months Ended | 105 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2020
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 |

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- Definition Commitments and contingencies. + References No definition available. + Details
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- Definition Development And Milestone Obligations Paid To Third Party + References No definition available. + Details
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- Definition Total amount potentially due to third party under license agreement based on achievement of pre-new drug application approval milestones. + References No definition available. + Details
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- Definition Future Percentage Of Royalty Payments Based On Net Sales. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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