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Employee Benefit Plans
 9 Months Ended
Aug. 29, 2021
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS
The following table summarizes the total net periodic benefit cost for the Company's defined pension plans and postretirement benefit plans:
 Three Months EndedNine Months Ended
 August 29,
2021		August 23,
2020		August 29,
2021		August 23,
2020
 (Dollars in thousands)
Net periodic benefit (income) cost:
Pension benefits$(453)$1,830 $(1,690)$5,186 
Postretirement benefits332 509 995 1,528 
Net periodic benefit (income) cost$(121)$2,339 $(695)$6,714