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Business Combination, Goodwill and Other Intangible Assets - ProForma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 24 Months Ended
--- | --- | --- | ---
May 26, 2018 | May 27, 2017 | Nov. 26, 2016 | May 26, 2018 | May 27, 2017 | May 26, 2018
Business Acquisition [Line Items] |  |  |  |  |  |  |
Postretirement health care benefit income, net of tax |  |  |  |  | $ 16,300 |  |
Acquisition related costs | $ 800 | $ 450 |  | $ 850 | 6,374 |  |
Grand Design [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Revenue since acquisition |  |  |  | 719,030 | 366,309 |  |
Operating income since acquisition |  |  |  | 91,452 | 27,083 |  |
Pro forma net revenues |  |  |  | 1,480,641 | 1,187,849 |  |
Pro forma net income |  |  |  | $ 72,675 | $ 66,009 | [1] |
Pro forma income per share - basic (in dollars per share) |  |  |  | $ 2.30 | $ 2.09 | [1] |
Pro forma income per share - diluted (in dollars per share) |  |  |  | $ 2.28 | $ 2.08 | [1] |
Acquisition related costs |  |  |  | $ 100 | $ 6,400 |  | $ 6,900
Amortization of intangibles (1 year or less useful life) [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Nonrecurring adjustments |  |  |  | (122) | (18,601) |  |
Increase in amortization of intangibles [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Nonrecurring adjustments |  |  |  | 0 | 1,551 |  |
Expenses Related to Business Combination [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Nonrecurring adjustments |  |  |  | (50) | (6,432) | [2] |
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 |  |  |  | 0 | 3,672 |  |
Taxes related to the adjustments to the pro forma [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Nonrecurring adjustments |  |  |  | $ 64 | $ 11,513 |  |
[1] | Net income and income per share include the increased benefit of $16.3 million, net of tax, associated with the termination of the postretirement health care plan in Fiscal 2017.
[2] | Pro forma transaction costs include $0.1 million incurred by Grand Design prior to acquisition.

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