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WORKERS' COMPENSATION INSURANCE AND RESERVES (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 26, 2021 | Dec. 27, 2020 | Dec. 29, 2019
Workers' Compensation Deductible Limit [Line Items] |  |  |
Workers' compensation claim deductible limit | $ 2,000 |  |
Weighted average period - claim payments below deductible limit | 5 years 6 months |  |
Undiscounted workers’ compensation reserve | $ 273,000 | $ 273,502 |
Less discount on workers’ compensation reserve | 16,806 | 18,009 |
Workers’ compensation reserve, net of discount | 256,194 | 255,493 |
Less current portion | 61,596 | 66,007 |
Long-term portion | 194,598 | 189,486 |
Payments made against self-insured claims | $ 41,900 | 52,800 | $ 63,100
Weighted average period - claim payments and receivables above deductible limit | 17 years |  |
Workers' compensation excess claims reserve | $ 62,684 | 54,000 |
Worker's compensation excess claim receivables, net of valuation allowance | 61,386 | 52,934 |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Beginning balance | 3,072 | 1,780 |
Ending balance | 2,368 | 3,072 | 1,780
Expected Future Workers' Compensation Payments [Abstract] |  |  |
2020 | 61,596 |  |
2021 | 32,921 |  |
2022 | 19,117 |  |
2023 | 12,694 |  |
2024 | 9,363 |  |
Thereafter | 57,819 |  |
Sub-total | 193,510 |  |
Excess claims | 62,684 | 54,000 |
Total | 256,194 |  |
Workers' compensation costs | 39,800 | 49,400 | 60,200
Allowance for Receivable from Insurance Provider |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Beginning balance | 85 | 629 | 3,314
Charged to expense | 13 | 13 | 120
Release of allowance | 0 | (629) | (2,805)
Ending balance | 98 | 85 | 629
Allowance for Receivable from Insurance Provider | Cumulative Effect, Period of Adoption, Adjustment |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Beginning balance | $ 0 | 72 | 0
Ending balance |  | $ 0 | $ 72
Below limit |  |  |
Workers' Compensation Deductible Limit [Line Items] |  |  |
Workers' compensation discount, percent | 1.60% | 1.80% |
Above limit [Member] |  |  |
Workers' Compensation Deductible Limit [Line Items] |  |  |
Workers' compensation discount, percent | 1.80% | 1.30% |

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