Document and Entity Information - shares	6 Months Ended
	Feb. 23, 2019	Mar. 20, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	WINNEBAGO INDUSTRIES INC
Entity Central Index Key	0000107687
Current Fiscal Year End Date	--08-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Feb. 23, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		31,873,494
Entity Current Reporting Status	Yes