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Business Combinations - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2019 | Aug. 29, 2020 | Aug. 31, 2019
Business Acquisition [Line Items] |  |  |
Acquisition related costs | $ 600 | $ 600 |
Newmar Corporation |  |  |
Business Acquisition [Line Items] |  |  |
Net revenues |  | 2,508,792 | $ 2,645,914
Net (loss) income |  | $ 72,609 | $ 101,692
Income per share - basic (in dollars per share) |  | $ 2.16 | $ 3.03
Income per share - diluted (in dollars per share) |  | $ 2.11 | $ 3.02
Acquisition related costs |  | $ 10,400 |
Newmar Corporation | Amortization of intangibles (1 year or less useful life) |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | 13,610 | $ (13,610)
Newmar Corporation | Increase in amortization of intangibles |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | (1,061) | (5,578)
Newmar Corporation | Expenses related to business combination (transaction costs) |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | 9,761 | (9,950)
Newmar Corporation | Interest to reflect new debt structure |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | (4,356) | (19,155)
Newmar Corporation | Taxes related to the adjustments to the pro forma data and to the income of Newmar |  |  |
Business Acquisition [Line Items] |  |  |
Nonrecurring adjustments |  | $ (2,968) | $ 2,686

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