Financial Instruments and Fair Value Disclosure (Fair Value Assets Measured On Nonrecurring Basis) (Details) - Homebuilding - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Inventory write-down	$ 19,900	$ 47,900
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finished homes and construction in progress, carrying value	458,569	347,300	$ 32,364
Finished homes and construction in progress, fair value	396,795	295,663	16,342
Finished homes and construction in progress, total gains and losses	(61,774)	(51,637)	(16,022)
Land and land under development, carrying value	72,061	183,737	35,775
Land and land under development, fair value	49,539	126,135	26,841
Land and land under development, total gains (losses)	(22,522)	(57,602)	(8,934)
Other assets, carrying value	0	0	12,764
Other assets, fair value	0	0	12,024
Other assets, total gains (loss)	0	0	(740)
Fair Value, Measurements, Nonrecurring | Level 3 | Equity Method Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Adjustment	(41,042)	(1,454)	0
Fair Value, Measurements, Nonrecurring | Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity Method Investments, Fair Value Disclosure	78,834	1,454	0
Fair Value, Measurements, Nonrecurring | Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity Method Investments, Fair Value Disclosure	$ 37,792	$ 0	$ 0