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Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands | Dec. 25, 2019 | Dec. 26, 2018
--- | --- | ---
Deferred tax assets: |  |
Self-insurance accruals | $ 4,202 | $ 4,647
Finance lease liabilities | 1,263 |
Finance lease liabilities |  | 2,045
Operating lease liabilities | 43,497 |
Accrued exit cost | 48 | 445
Interest rate swaps | 11,491 | 1,157
Pension, other retirement and compensation plans | 10,549 | 10,568
Deferred income | 4,688 | 5,099
Other accruals | 0 | 633
Alternative minimum tax credit carryforwards | 0 | 928
General business and foreign tax credit carryforwards - state and federal | 2,945 | 11,061
Net operating loss carryforwards - state | 9,621 | 13,899
Total deferred tax assets before valuation allowance | 88,304 | 50,482
Less: valuation allowance | (10,264) | (13,199)
Total deferred tax assets | 78,040 | 37,283
Deferred tax liabilities: |  |
Intangible assets | (14,858) | (14,631)
Deferred finance costs | (211) | (286)
Operating lease right-of-use assets | (40,751) |
Fixed assets | (6,711) | (5,033)
Other accruals | (791) | 0
Total deferred tax liabilities | (63,322) | (19,950)
Net deferred tax asset | $ 14,718 | $ 17,333

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