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		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 2,793	$ 1,499	$ 2,492	$ 2,113
Purchases/loan originations	99	20	181	443
Sales/loan originations sold, including those not settled	0	0	0	0
Disposals/settlements	(106)	(58)	(265)	(1,095)
Changes in fair value	435	1,141	813	1,141
Interest and principal paydowns	0	0	0	0
Ending balance	3,221	2,602	3,221	2,602
LMF Commercial loans held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	85,795	123,148	68	193,588
Purchases/loan originations	143,650	201,296	408,495	420,796
Sales/loan originations sold, including those not settled	(145,385)	(155,740)	(323,467)	(438,705)
Disposals/settlements	0	(7,300)	0	(7,300)
Changes in fair value	145	2,825	(445)	(3,942)
Interest and principal paydowns	0	(309)	(446)	(517)
Ending balance	$ 84,205	$ 163,920	$ 84,205	$ 163,920