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Stock-Based Compensation Plans - Expense Components (Details) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 29, 2020 | Aug. 31, 2019 | Aug. 25, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | $ 6,475 | $ 7,058 | $ 7,434
Time-based |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | 4,287 | 4,986 | 4,152
Performance-based |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | 796 | 716 | 2,525
Stock options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | 990 | 925 | 502
Other |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total stock-based compensation expense | $ 402 | $ 431 | $ 255

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