Accumulated Other Comprehensive Loss (Amounts Reclassified from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Equity [Abstract]
Amortization of net actuarial (gain) loss		$ (112)	$ 1,090	$ 1,575
Amortization of prior service cost		0	0	86
Total reclassifications	[1]	$ (112)	$ 1,090	$ 1,661

[1] The accumulated other comprehensive loss components are included in the computation of net periodic benefit costs as further discussed in Note 22 – Postretirement Benefits.