Commitments and Contingencies (Changes in Warranty Liability) (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Changes in the Company's warranty liability
Balance at beginning of year		$ 101,890	$ 96,153	$ 91,646
Warranties issued		37,424	39,476	34,627
Payments		(45,314)	(33,739)	(26,120)
Adjustments		4,000	0	(4,000)
Balance at end of year		98,000	101,890	96,153
Movement In Self Insurance Reserve [Roll Forward]
Balance at beginning of year		175,977	189,131	194,180
Self-insurance provided		18,351	21,926	19,665
Payments		(20,896)	(21,984)	(29,369)
Balance at end of year		179,832	175,977	189,131
Increase (decrease) in self insurance reserve		6,500	7,000	6,800
Self Insurance
Movement In Self Insurance Reserve [Roll Forward]
Adjustments	[1]	$ 6,400	$ (13,096)	$ 4,655

[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, and an adjustment to increase our previously recorded liability by $6.5 million in 2023, $7.0 million in 2022 and $6.8 million in 2021. The 2022 amount was largely impacted by a change in the actuarially determined estimate of probable recoveries 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.