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Income before taxes, components of provision, and ETR reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 26, 2021 | Dec. 27, 2020 | Dec. 29, 2019
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] |  |  |
U.S. | $ (49,978) | $ (262,728) | $ (14,549)
Foreign | (176) | (20,824) | (7,688)
Loss before income taxes | (50,154) | (283,552) | (22,237)
Current: |  |  |
Federal | 0 | (60,340) | (3,054)
State | (152) | 1,354 | (1,687)
Foreign | 0 | 0 | 0
Current Income Tax Expense (Benefit) | (152) | (58,986) | (4,741)
Deferred: |  |  |
Federal | 0 | 44,353 | (10,994)
State | 0 | 8,086 | 1,354
Foreign | 0 | (937) | 47
Deferred Income Tax Expense (Benefit) | 0 | 51,502 | (9,593)
Provision (benefit) for income taxes | $ (152) | $ (7,484) | $ (14,334)
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |
Tax provision at U.S. federal statutory rate | 21.00% | 21.00% | 21.00%
State income taxes | 3.80% | 3.90% | 2.20%
FICA tip tax credits | 0.00% | 0.00% | 46.00%
Foreign taxes versus U.S statutory rate | 0.00% | 0.20% | 0.80%
Valuation allowance on deferred income tax assets | (25.20%) | (27.90%) | (9.10%)
Impact of CARES Act and related method changes | 0.00% | 5.50% | 0.00%
Other tax credits | 0.00% | 0.00% | 6.10%
Meals and entertainment | 0.00% | 0.00% | (0.70%)
Excess stock options | 1.10% | (0.10%) | (2.90%)
Employee travel | 0.00% | 0.00% | (0.10%)
Other | (0.40%) | 0.00% | 1.20%
Effective tax rate | 0.30% | 2.60% | 64.50%

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