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WORKERS' COMPENSATION INSURANCE AND RESERVES - Reconciliation of Workers' Compensation Claims Reserve (Details) - USD ($)
$ in Thousands
Mar. 27, 2022
Dec. 26, 2021
Workers' Compensation Insurance and Reserves [Abstract]    
Undiscounted workers’ compensation reserve $ 272,724 $ 273,000
Less discount on workers’ compensation reserve 16,362 16,806
Workers' compensation reserve, net of discount 256,362 256,194
Less current portion 58,890 61,596
Long-term portion $ 197,472 $ 194,598