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Share-Based Employee Compensation (Components of Share-Based Compensation Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 27, 2020 | Sep. 29, 2019 | Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | $ 4,394 | $ 8,074 | $ 9,146
Nonvested stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 3,526 | 5,458 | 5,737
Stock options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 351 | 936 | 1,790
Performance share awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 254 | 1,417 | 1,236
Nonvested restricted stock awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | 0 | 0 | 33
Non-management directors’ deferred compensation |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total share-based compensation expense | $ 263 | $ 263 | $ 350

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