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Commitments and Contingencies - VQW-765 - Narrative (Details) | 3 Months Ended
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Mar. 31, 2024
VQW-765 |
Commitments and Contingencies [Line Items] |
Future percentage of royalty payments based net sales | mid-teens

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- Definition Commitments and contingencies. + References No definition available. + Details
Name: | vnda_CommitmentsAndContingenciesLineItems
Namespace Prefix: | vnda_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Future Percentage Of Royalty Payments Based On Net Sales. + References No definition available. + Details
Name: | vnda_FuturePercentageOfRoyaltyPaymentsBasedOnNetSales
Namespace Prefix: | vnda_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_TypeOfArrangementAxis=vnda_VQW765Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |