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EMPLOYEE BENEFIT PLANS - Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
Dec. 25, 2021
Dec. 26, 2020
Amounts recognized in accumulated other comprehensive income (loss)    
Net actuarial loss $ 82,746 $ 82,914
Net prior service cost (credit) (1,091) (1,593)
Net amount recognized $ 81,655 $ 81,321