Commitments and Contingencies (Changes in the Warranty and Self-Insurance Liability) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Changes in the Warranty Liability
Balance at beginning of period		$ 99,207	$ 95,853	$ 96,153	$ 91,646
Warranties issued		10,377	8,264	27,945	25,099
Payments		(10,084)	(6,304)	(24,598)	(18,932)
Balance at end of period		99,500	97,813	99,500	97,813
Movement In Self Insurance Reserve [Roll Forward]
Balance at beginning of period		168,675	194,269	189,131	194,180
Self-insurance expense		5,763	5,168	16,275	15,679
Payments		(860)	(4,699)	(14,990)	(20,296)
Balance at end of period		171,278	186,666	171,278	186,666
Self Insurance [Member]
Movement In Self Insurance Reserve [Roll Forward]
Increase (Decrease) in Insurance Liabilities	[1]	$ (2,300)	$ (8,072)	$ (19,138)	$ (2,897)

[1] Represents net changes in estimated probable recoveries related to self-insurance, which are recorded in receivables, to present our self-insurance liability on a gross basis. The amount for the nine months ended August 31, 2022 primarily reflected a change in the actuarially determined estimate of probable recoveries largely associated with higher self-insured retention levels in our more recent coverage years, and an insurance carrier’s payment of a portion of a townhome claim settlement reached in the 2022 first quarter.