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Employee Benefit Plans
 3 Months Ended
Feb. 28, 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 Ended
 February 28,
2021		February 23,
2020
 (Dollars in thousands)
Net periodic benefit (income) cost:
Pension benefits$(616)$1,704 
Postretirement benefits332 509 
Net periodic benefit (income) cost$(284)$2,213