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Business Combination, Goodwill and Other Intangible Assets (Details) - Grand Design [Member]
$ / shares in Units, $ in Thousands
Nov. 08, 2016
USD ($)
$ / shares
shares
Business Acquisition [Line Items]  
Cash $ 396,442
Winnebago shares: 4,586,555 at $27.05 per share 124,066
Total $ 520,508
Shares issued for acquisition | shares 4,586,555
Share price (in dollars per share) | $ / shares $ 27.05