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Income Taxes (Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($) $ in Thousands | Oct. 03, 2021 | Sep. 27, 2020
--- | --- | ---
Deferred tax assets: |  |
Operating and finance lease liabilities | $ 237,509 | $ 234,926
Accrued defined benefit pension and postretirement benefits | 28,837 | 44,436
Deferred income | 12,083 | 12,921
Impairment | 6,957 | 8,895
Accrued insurance | 5,389 | 6,500
Other reserves and allowances | 4,050 | 2,440
Share-based compensation | 4,039 | 4,143
Accrued incentive compensation | 3,455 | 2,585
Tax loss and tax credit carryforwards | 3,129 | 4,273
Accrued compensation expense | 710 | 672
Other, net | 3,424 | 2,364
Total gross deferred tax assets | 309,582 | 324,155
Valuation allowance | (1,349) | (2,104)
Total net deferred tax assets | 308,233 | 322,051
Deferred tax liabilities: |  |
Operating and finance lease ROU assets | (242,038) | (235,373)
Intangible assets | (11,349) | (11,437)
Property and equipment, principally due to differences in depreciation | (1,036) | (1,781)
Other | (2,293) | (1,138)
Total gross deferred tax liabilities | (256,716) | (249,729)
Net deferred tax assets | $ 51,517 | $ 72,322

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