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v3.20.2

Subsequent Events (Details) - Subsequent Event $ / shares in Units, $ in Millions | Oct. 14, 2020 USD ($) $ / shares
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Subsequent Events |
Special cash dividend (in dollars per share) | $ / shares | $ 3.00
Special cash dividend | $ | $ 11.2

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of special cash dividend declared during the period. + References No definition available. + Details
Name: | wina_SpecialCashDividendDeclared
Namespace Prefix: | wina_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Special cash dividend declared during the period for each share of stock outstanding. + References No definition available. + Details
Name: | wina_SpecialCashDividendPerShareDeclared
Namespace Prefix: | wina_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |