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Homebuilding Senior Notes and Other Debts Payable (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Apr. 30, 2024	Aug. 31, 2024	Aug. 31, 2024	Aug. 31, 2023	Nov. 30, 2023
Debt Instrument [Line Items]
Redemption of senior notes			$ 553,865,000	$ 633,059,000
Homebuilding | Letter of Credit
Debt Instrument [Line Items]
Maximum borrowings		$ 500,000,000	500,000,000
Homebuilding | Senior Notes
Debt Instrument [Line Items]
Debt issuance cost		2,600,000	2,600,000		$ 4,200,000
Homebuilding | Senior Notes | 4.75% senior notes due 2027
Debt Instrument [Line Items]
Redemption of senior notes		$ 100,000,000	$ 100,000,000
Interest rate (percent)		4.75%	4.75%
Homebuilding | Senior Notes | 4.50% senior notes due 2024
Debt Instrument [Line Items]
Principal redeemed	$ 454,000,000
Interest rate (percent)	4.50%	4.50%	4.50%
Percentage of debt principal redeemed	100.00%
Debt matured	$ 350,000,000

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