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Goodwill (Narrative) (Details) $ in Millions | Aug. 27, 2016 USD ($)
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Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill amortizable for tax return purposes only | $ 1.2

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

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- Definition Goodwill Amortizable for Tax Return Purposes Only + References No definition available. + Details
Name: | wgo_GoodwillAmortizableForTaxReturnPurposesOnly
Namespace Prefix: | wgo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant