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Postretirement Benefits (Net Periodic Cost) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2021
Retirement Benefits [Abstract] |  |  |
Interest cost | $ 2,884 | $ 1,853 | $ 1,593
Amortization of prior service cost | 0 | 0 | 85
Service cost | 720 | 1,132 | 1,152
Amortization of net actuarial (gain) loss | (112) | 998 | 1,443
Total | $ 3,492 | $ 3,983 | $ 4,273
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Selling, General and Administrative Expense | Selling, General and Administrative Expense | Selling, General and Administrative Expense

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