Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017	Aug. 27, 2016
Operating activities:
Net income	$ 102,357,000	$ 71,330,000	$ 45,496,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	9,849,000	7,315,000	5,745,000
Amortization of intangible assets	9,328,000	24,660,000	0
Amortization of debt issuance costs	2,206,000	1,596,000	0
LIFO expense	3,344,000	1,722,000	1,153,000
Stock-based compensation	7,434,000	2,977,000	3,293,000
Deferred income taxes	5,784,000	8,360,000	2,233,000
Deferred compensation expense and postretirement income	1,201,000	(23,379,000)	(4,292,000)
Other, net	(995,000)	(1,257,000)	(935,000)
Change in assets and liabilities:
Receivables	(37,739,000)	(25,136,000)	564,000
Inventories	(46,429,000)	(6,165,000)	(11,510,000)
Prepaid expenses and other assets	2,353,000	(2,461,000)	653,000
Accounts payable	(1,278,000)	23,778,000	10,977,000
Income taxes and unrecognized tax benefits	7,939,000	7,045,000	85,000
Accrued expenses and other liabilities	21,084,000	9,919,000	3,276,000
Deferred compensation and postretirement benefits	(3,092,000)	(3,177,000)	(3,992,000)
Net cash provided by operating activities	83,346,000	97,127,000	52,746,000
Investing activities:
Purchases of property and equipment	(28,668,000)	(13,993,000)	(24,551,000)
Proceeds from the sale of property	338,000	223,000	18,000
Acquisition of business, net of cash acquired	(81,200,000)	(392,473,000)	0
Other, net	(2,231,000)	858,000	1,141,000
Net cash used in investing activities	(111,761,000)	(405,385,000)	(23,392,000)
Financing activities:
Borrowings on credit agreement	221,133,000	366,400,000	0
Repayments of credit agreement	(206,601,000)	(82,400,000)	0
Payments of cash dividends	(12,738,000)	(12,738,000)	(10,891,000)
Payments for repurchases of common stock	(6,481,000)	(1,530,000)	(3,066,000)
Payments of debt issuance costs	(589,000)	(11,020,000)	0
Other, net	88,000	(92,000)	(53,000)
Net cash provided by (used in) financing activities	(5,188,000)	258,620,000	(14,010,000)
Net (decrease) increase in cash and cash equivalents	(33,603,000)	(49,638,000)	15,344,000
Cash and cash equivalents at beginning of period	35,945,000	85,583,000	70,239,000
Cash and cash equivalents at end of period	2,342,000	35,945,000	85,583,000
Supplemental cash flow disclosure:
Income taxes paid, net	26,436,000	21,421,000	18,449,000
Interest paid	16,565,000	11,893,000	0
Non-cash transactions:
Issuance of Winnebago common stock for acquisition of business	0	124,066,000	0
Capital expenditures in accounts payable	$ 698,000	$ 1,021,000	$ 903,000