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Revenue and Related Contract Costs and Contract Liabilities - Summary of Changes in Contract Costs (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2021 USD ($)
Revenue From Contract With Customer [Abstract] |
Balance at December 31, 2020 | $ 10,835
Additions | 10,956
Expenses | (5,877)
Cancelled | (580)
Foreign exchange translation adjustment | 50
Balance at June 30, 2021 | $ 15,384

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Capitalized contract cost additions. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Capitalized contract cost cancelled. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Capitalized contract cost expenses. + References No definition available. + Details
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Namespace Prefix: | vvi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Capitalized contract cost increase (decrease) due to foreign exchange translation adjustment. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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