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Restructuring Charges - Narrative (Details) $ in Millions | Sep. 30, 2020 USD ($)
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Restructuring And Related Activities [Abstract] |
Payments of liabilities related to severance and employee benefits | $ 1.5

X
- References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Payment of liabilities related to severance and employee benefits. + References No definition available. + Details
Name: | vvi_PaymentsOfLiabilitiesRelatedToSeveranceAndEmployeeBenefits
Namespace Prefix: | vvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant