Financial Instruments and Fair Value Disclosures - (Reconciliation Of Beginning And Ending Balance For The Company's Level 3 Recurring Fair Value Measurements) (Details) - Financial Services - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 3,463	$ 2,492
Purchases/loan originations	51	82
Sales/loan originations sold, including those not settled	0	0
Disposals/settlements	(63)	(159)
Changes in fair value	(1)	378
Interest and principal paydowns	0	0
Ending balance	3,450	2,793
LMF Commercial loans held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	25,599	68
Purchases/loan originations	79,480	264,845
Sales/loan originations sold, including those not settled	(77,200)	(178,082)
Disposals/settlements	0	0
Changes in fair value	(445)	(590)
Interest and principal paydowns	(1,599)	(446)
Ending balance	$ 25,835	$ 85,795