Business Segments (Details)	3 Months Ended								12 Months Ended
	Aug. 25, 2018 USD ($)	May 26, 2018 USD ($)	Feb. 24, 2018 USD ($)	Nov. 25, 2017 USD ($)	Aug. 26, 2017 USD ($)	May 27, 2017 USD ($)	Feb. 25, 2017 USD ($)	Nov. 26, 2016 USD ($)	Aug. 25, 2018 USD ($) reportable_segments	Aug. 26, 2017 USD ($)	Aug. 27, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | reportable_segments									2
Net revenues	$ 536,188,000	$ 562,261,000	$ 468,359,000	$ 450,021,000	$ 454,936,000	$ 476,364,000	$ 370,510,000	$ 245,308,000	$ 2,016,829,000	$ 1,547,119,000	$ 975,226,000
Purchases of property and equipment									28,668,000	13,993,000	24,551,000
Assets	1,051,805,000				902,512,000				1,051,805,000	902,512,000
Net income	29,790,000	$ 32,521,000	$ 22,088,000	$ 17,958,000	24,923,000	$ 19,391,000	$ 15,278,000	$ 11,738,000	102,357,000	71,330,000	45,496,000
Interest expense									18,246,000	16,837,000	0
Provision for income taxes									40,283,000	37,269,000	20,702,000
Depreciation									9,849,000	7,315,000	5,745,000
Amortization of intangible assets									9,328,000	24,660,000	0
EBITDA									180,063,000	157,411,000	71,943,000
Postretirement health care benefit income									0	(24,796,000)	(6,124,000)
Legal settlement									0	0	(3,400,000)
Transaction costs									2,177,000
Non-operating income									(494,000)	(330,000)	(457,000)
Adjusted EBITDA									181,746,000	138,877,000	62,317,000
Motorhome [Member]
Segment Reporting Information [Line Items]
Net revenues									860,675,000	853,360,000	881,363,000
Purchases of property and equipment									9,302,000	9,563,000	23,909,000
Assets	322,048,000				277,015,000				322,048,000	277,015,000
Adjusted EBITDA									35,508,000	56,518,000	66,127,000
Towable [Member]
Segment Reporting Information [Line Items]
Net revenues									1,127,723,000	685,197,000	89,412,000
Purchases of property and equipment									18,460,000	4,406,000	631,000
Assets	626,588,000				576,262,000				626,588,000	576,262,000
Adjusted EBITDA									157,010,000	89,734,000	1,721,000
Corporate All Other [Member]
Segment Reporting Information [Line Items]
Net revenues									28,431,000	8,562,000	4,451,000
Purchases of property and equipment									906,000	24,000	11,000
Assets	$ 103,169,000				$ 49,235,000				103,169,000	49,235,000
Adjusted EBITDA									$ (10,772,000)	$ (7,375,000)	$ (5,531,000)