Basis of Presentation	9 Months Ended
May 26, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The "Company," "we," "our" and "us" are used interchangeably to refer to Winnebago Industries, Inc. and its wholly-owned subsidiaries, as appropriate in the context. We were incorporated under the laws of the state of Iowa on February 12, 1958 and adopted our present name on February 28, 1961. Our primary offices are located at 605 West Crystal Lake Road in Forest City, Iowa. Our telephone number is (641) 585-3535; our website is www.winnebagoind.com. Our common stock trades on the NYSE under the symbol WGO. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting of normal recurring accruals, necessary for a fair presentation as prescribed by GAAP. The consolidated statements of income and comprehensive income for the third quarter and first nine months of Fiscal 2018 are not necessarily indicative of the results to be expected for the full year. These interim financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto appearing in our Annual Report on Form 10-K for the fiscal year ended August 26, 2017. Fiscal Period We follow a 52-/53-week fiscal year, ending the last Saturday in August. Both Fiscal 2018 and Fiscal 2017 are 52-week years. Recently Adopted Accounting Pronouncements In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting (Topic 718), which simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for the related income taxes, forfeitures, statutory tax withholding requirements and classification in the statement of cash flows. ASU 2016-09 is effective for annual reporting periods beginning after December 15, 2016 (our Fiscal 2018), including interim periods within those annual reporting periods. We adopted this ASU in the interim quarterly reporting period ended November 25, 2017. Amendments requiring recognition of excess tax benefits and tax deficiencies in the statements of income and comprehensive income resulted in $0.6 million of excess tax benefits recorded as a reduction of income tax expense upon adoption for the three months ended November 25, 2017. The reduction in income tax expense also reduced the effective tax rate by 2.2% and added $0.02 to income per share for the quarter ended November 25, 2017. Amendments related to the presentation of excess tax benefits and employee taxes paid when an employer withholds shares to meet the minimum statutory withholding requirement required no change to the statement of cash flows. There were no material impacts on the consolidated financial statements of the Company, which adopted a policy of accounting for forfeitures when they occur. In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330), which requires inventory measured using any method other than LIFO or the retail inventory method to be subsequently measured at the lower of cost or net realizable value, rather than at the lower of cost or market. Under this ASU, subsequent measurement of inventory using the LIFO and retail inventory method is unchanged. ASU 2015-11 is effective prospectively for fiscal years beginning after December 15, 2016 (our Fiscal 2018), including interim periods within those annual reporting periods. We adopted this ASU on August 27, 2017, and there was no material impact on our consolidated financial statements. New Accounting Pronouncements In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which establishes a comprehensive new model for the recognition of revenue from contracts with customers. This model is based on the core principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Entities have the option of using either retrospective transition or a modified approach in applying the new standard. The standard is effective for fiscal years, and the interim periods within those years, beginning after December 15, 2017 (our Fiscal 2019). Early adoption is permitted. We have performed an evaluation that included a review of representative contracts with key customers and the performance obligations contained therein, as well as a review of our commercial terms and practices across each of our segments. Based on our preliminary review, we do not expect adoption to have a material impact on our consolidated financial statements but further work to substantiate this preliminary conclusion is underway. We continue to assess the impact of the standard on our disclosures and our internal controls over financial reporting. We plan to adopt this standard in the first quarter of our Fiscal 2019. Providing we ultimately conclude that the impacts of adoption are immaterial, we would expect to use the modified retrospective method. Under this method, we would recognize the cumulative effect of the changes in retained earnings at the date of adoption, but would not restate prior periods. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires an entity to recognize both assets and liabilities arising from financing and operating leases, along with additional qualitative and quantitative disclosures. The new standard must be adopted on a modified retrospective basis for fiscal years beginning after December 15, 2018 (our Fiscal 2020), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments (Topic 230), which provides guidance for eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective retrospectively for annual reporting periods beginning after December 15, 2017 (our Fiscal 2019), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and do not expect adoption to have a material impact. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815), which improves the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements. ASU 2017-12 is effective for annual reporting periods beginning after December 15, 2018 (our Fiscal 2020), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220), which allows for a reclassification of stranded tax effects from the Tax Act from AOCI to retained earnings. This ASU is effective for fiscal years beginning after December 15, 2018 (our Fiscal 2020). We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and do not expect adoption to have a material impact. Subsequent Event On June 4, 2018, we acquired 100% of the ownership interests of Chris-Craft, a privately-owned company based in Sarasota Florida. Chris-Craft manufactures and sells premium quality boats in the recreational powerboat industry through an established global network of independent authorized dealers.

Basis of Presentation

The "Company," "we," "our" and "us" are used interchangeably to refer to Winnebago Industries, Inc. and its wholly-owned subsidiaries, as appropriate in the context.

We were incorporated under the laws of the state of Iowa on February 12, 1958 and adopted our present name on February 28, 1961. Our primary offices are located at 605 West Crystal Lake Road in Forest City, Iowa. Our telephone number is (641) 585-3535; our website is www.winnebagoind.com. Our common stock trades on the NYSE under the symbol WGO.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP can be condensed or omitted. In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, consisting of normal recurring accruals, necessary for a fair presentation as prescribed by GAAP.

The consolidated statements of income and comprehensive income for the third quarter and first nine months of Fiscal 2018 are not necessarily indicative of the results to be expected for the full year. These interim financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto appearing in our Annual Report on Form 10-K for the fiscal year ended August 26, 2017.

Fiscal Period

We follow a 52-/53-week fiscal year, ending the last Saturday in August. Both Fiscal 2018 and Fiscal 2017 are 52-week years.

Recently Adopted Accounting Pronouncements

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting (Topic 718), which simplifies several aspects of the accounting for employee share-based payment transactions, including the accounting for the related income taxes, forfeitures, statutory tax withholding requirements and classification in the statement of cash flows. ASU 2016-09 is effective for annual reporting periods beginning after December 15, 2016 (our Fiscal 2018), including interim periods within those annual reporting periods. We adopted this ASU in the interim quarterly reporting period ended November 25, 2017. Amendments requiring recognition of excess tax benefits and tax deficiencies in the statements of income and comprehensive income resulted in $0.6 million of excess tax benefits recorded as a reduction of income tax expense upon adoption for the three months ended November 25, 2017. The reduction in income tax expense also reduced the effective tax rate by 2.2% and added $0.02 to income per share for the quarter ended November 25, 2017. Amendments related to the presentation of excess tax benefits and employee taxes paid when an employer withholds shares to meet the minimum statutory withholding requirement required no change to the statement of cash flows. There were no material impacts on the consolidated financial statements of the Company, which adopted a policy of accounting for forfeitures when they occur.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330), which requires inventory measured using any method other than LIFO or the retail inventory method to be subsequently measured at the lower of cost or net realizable value, rather than at the lower of cost or market. Under this ASU, subsequent measurement of inventory using the LIFO and retail inventory method is unchanged. ASU 2015-11 is effective prospectively for fiscal years beginning after December 15, 2016 (our Fiscal 2018), including interim periods within those annual reporting periods. We adopted this ASU on August 27, 2017, and there was no material impact on our consolidated financial statements.

New Accounting Pronouncements

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which establishes a comprehensive new model for the recognition of revenue from contracts with customers. This model is based on the core principle that revenue should be recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Entities have the option of using either retrospective transition or a modified approach in applying the new standard. The standard is effective for fiscal years, and the interim periods within those years, beginning after December 15, 2017 (our Fiscal 2019). Early adoption is permitted.

We have performed an evaluation that included a review of representative contracts with key customers and the performance obligations contained therein, as well as a review of our commercial terms and practices across each of our segments. Based on our preliminary review, we do not expect adoption to have a material impact on our consolidated financial statements but further work to substantiate this preliminary conclusion is underway. We continue to assess the impact of the standard on our disclosures and our internal controls over financial reporting.

We plan to adopt this standard in the first quarter of our Fiscal 2019. Providing we ultimately conclude that the impacts of adoption are immaterial, we would expect to use the modified retrospective method. Under this method, we would recognize the cumulative effect of the changes in retained earnings at the date of adoption, but would not restate prior periods.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires an entity to recognize both assets and liabilities arising from financing and operating leases, along with additional qualitative and quantitative disclosures. The new standard must be adopted on a modified retrospective basis for fiscal years beginning after December 15, 2018 (our Fiscal 2020), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments (Topic 230), which provides guidance for eight specific cash flow issues with the objective of reducing the existing diversity in practice. ASU 2016-15 is effective retrospectively for annual reporting periods beginning after December 15, 2017 (our Fiscal 2019), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and do not expect adoption to have a material impact.

In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815), which improves the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements. ASU 2017-12 is effective for annual reporting periods beginning after December 15, 2018 (our Fiscal 2020), including interim periods within those annual reporting periods. Early adoption is permitted. We are currently evaluating the impact of adopting this ASU on our consolidated financial statements.

In February 2018, the FASB issued ASU 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220), which allows for a reclassification of stranded tax effects from the Tax Act from AOCI to retained earnings. This ASU is effective for fiscal years beginning after December 15, 2018 (our Fiscal 2020). We are currently evaluating the impact of adopting this ASU on our consolidated financial statements and do not expect adoption to have a material impact.

Subsequent Event

On June 4, 2018, we acquired 100% of the ownership interests of Chris-Craft, a privately-owned company based in Sarasota Florida. Chris-Craft manufactures and sells premium quality boats in the recreational powerboat industry through an established global network of independent authorized dealers.