Homebuilding Senior Notes and Other Debts Payable (Schedule of Senior Notes and Other Debts Payable) (Details) - USD ($) $ in Thousands		May 31, 2026	Nov. 30, 2025
Unsecured revolving credit facility | Delayed Draw Term Loan (DDTL)
Debt Instrument [Line Items]
Senior notes and other debts payable, net		$ 1,704,487	$ 1,710,000
Homebuilding
Debt Instrument [Line Items]
Senior notes and other debts payable, net	[1]	$ 4,047,487	4,084,686
Homebuilding | Senior Notes | 5.25% senior notes due 2026
Debt Instrument [Line Items]
Interest rate (percent)		5.25%
Senior notes and other debts payable, net		$ 400,000	400,608
Homebuilding | Senior Notes | 5.00% senior notes due 2027
Debt Instrument [Line Items]
Interest rate (percent)		5.00%
Senior notes and other debts payable, net		$ 350,399	350,590
Homebuilding | Senior Notes | 4.75% senior notes due 2027
Debt Instrument [Line Items]
Interest rate (percent)		4.75%
Senior notes and other debts payable, net		$ 699,134	698,845
Homebuilding | Senior Notes | 5.20% senior notes due 2030
Debt Instrument [Line Items]
Interest rate (percent)		5.20%
Senior notes and other debts payable, net		$ 694,791	694,165
Homebuilding | Mortgage notes on land and other debt
Debt Instrument [Line Items]
Senior notes and other debts payable, net		$ 198,676	$ 230,478

[1] As of May 31, 2026, total liabilities include $920.2 million related to consolidated VIEs as to which there was no recourse against the Company, of which $9.3 million is included in Homebuilding accounts payable, $907.7 million in Homebuilding liabilities related to consolidated inventory not owned, $2.5 million in Homebuilding other liabilities, and $0.7 million in Multifamily liabilities. As of November 30, 2025, total liabilities include $962.4 million related to consolidated VIEs as to which there was no recourse against the Company, of which $23.8 million is included in Homebuilding accounts payable, $930.1 million in Homebuilding liabilities related to consolidated inventory not owned, $6.0 million in Homebuilding senior notes and other debts payable, net, $1.5 million in Homebuilding other liabilities, and $1.0 million in Multifamily liabilities.