Homebuilding Senior Notes And Other Debts Payable (Narrative) (Details) - USD ($)		1 Months Ended	12 Months Ended
		Apr. 30, 2024	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Debt Instrument [Line Items]
Mortgages notes on land and other debt retired			$ 43,524,000	$ 105,118,000	$ 48,079,000
Gain on the extinguishment of debt, gross			825,000	9,611,000	0
Repayment/ repurchase of senior debt			553,865,000	1,121,133,000	$ 575,000,000
Line of Credit, Matured		$ 350,000,000
Homebuilding
Debt Instrument [Line Items]
Senior notes and other debts payable, net	[1]		2,258,283,000	2,816,482,000
Minimum required guarantee of debt by subsidiaries to be a guarantor			$ 75,000,000
Interest rate			7.50%
Weighted average interest rate			4.40%
Homebuilding | Mortgage notes on land and other debt
Debt Instrument [Line Items]
Senior notes and other debts payable, net			$ 307,440,000	311,720,000
Mortgages notes on land and other debt retired			46,005,000	11,835,000
Homebuilding | Senior Notes
Debt Instrument [Line Items]
Debt issuance costs			2,400,000	4,200,000
Homebuilding | Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowings			2,875,000,000
Senior notes and other debts payable, net			0	$ 0
Accordion feature			625,000,000
Maximum borrowings after accordion feature			3,500,000,000
Homebuilding | Letters of Credit
Debt Instrument [Line Items]
Maximum borrowings			$ 477,500,000

[1] As of November 30, 2024, total liabilities include $2.7 billion related to consolidated VIEs as to which there was no recourse against the Company, of which $67.3 million is included in Homebuilding accounts payable, $2.6 billion in Homebuilding liabilities related to consolidated inventory not owned, $6.0 million in Homebuilding senior notes and other debts payable, net, $45.8 million in Homebuilding other liabilities and $1.0 million in Multifamily liabilities. As of November 30, 2023, total liabilities include $1.2 billion related to consolidated VIEs as to which there was no recourse against the Company, of which $53.7 million is included in Homebuilding accounts payable, $1.1 billion in Homebuilding liabilities related to consolidated inventory not owned, $38.1 million in Homebuilding other liabilities and $4.1 million in Multifamily liabilities.