Notes Payable (Schedule Notes Payable) (Details) - USD ($) $ in Thousands	Aug. 31, 2023	Nov. 30, 2022	Aug. 31, 2022
Debt Instrument [Line Items]
Notes payable	$ 1,689,958	$ 1,838,511
Senior unsecured term loan due August 25, 2026 | Senior unsecured term loan due August 25, 2026
Debt Instrument [Line Items]
Notes payable	$ 357,988	357,485
Senior Notes | 6.875% Senior notes due June 15, 2027
Debt Instrument [Line Items]
Stated interest rate percentage	6.875%
Notes payable	$ 297,942	297,595
Senior Notes | 4.80% Senior notes due November 15, 2029
Debt Instrument [Line Items]
Stated interest rate percentage	4.80%
Notes payable	$ 297,485	297,230
Senior Notes | 7.25% Senior notes due July 15, 2030
Debt Instrument [Line Items]
Stated interest rate percentage	7.25%		7.25%
Notes payable	$ 345,988	345,663
Senior Notes | 4.00% Senior notes due June 15, 2031
Debt Instrument [Line Items]
Stated interest rate percentage	4.00%
Notes payable	$ 386,092	385,778
Mortgages and land contracts due to land sellers and other loans
Debt Instrument [Line Items]
Notes payable	4,463	4,760
Revolving Credit Facility | Unsecured revolving credit facility
Debt Instrument [Line Items]
Notes payable	$ 0	$ 150,000