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Business Combination, Goodwill and Other Intangible Assets - ProForma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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Nov. 26, 2016 | Aug. 26, 2017 | Aug. 27, 2016
Amortization of intangibles (1 year or less useful life) [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | $ (18,751) | $ 18,871
Increase in amortization of intangibles [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | 1,551 | 7,733
Expenses Related to Business Combination [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | (6,649) | 6,649
Grand Design Expenses Related to Business Combination [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments | $ 100 |  |
Interest to reflect new debt structure [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | 3,672 | 19,622
Taxes related to the adjustments to the pro forma [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | 11,648 | 1,680
Grand Design [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Revenue since acquisition |  | 559,664 |
Operating income since acquisition |  | 56,475 |
Pro forma net revenues |  | 1,642,786 | 1,402,897
Pro forma net income |  | $ 91,163 | $ 48,357
Pro forma income per share - basic (in dollars per share) |  | $ 2.89 | $ 1.53
Pro forma income per share - diluted (in dollars per share) |  | $ 2.88 | $ 1.53

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