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