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Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Nov. 27, 2021 | Nov. 28, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Stock-based compensation | $ 5,689 | $ 4,238
Deferred income tax benefit | (1,337) | (1,030)
Stock-based compensation expense, net | 4,352 | 3,208
Stock Options [Member] |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Stock-based compensation | 588 | 677
Restricted Stock Unit [Member] |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Stock-based compensation | 4,703 | 3,299
Performance Share Units [Member] |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Stock-based compensation | 308 | 213
Associate Stock Purchase Plan [Member] |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |
Stock-based compensation | $ 90 | $ 49

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