Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) $ in Thousands		12 Months Ended
		Nov. 30, 2024 USD ($) joint_venture	Nov. 30, 2023 USD ($) joint_venture	Nov. 30, 2022 USD ($) joint_venture	Apr. 30, 2025 USD ($)	Oct. 31, 2024 USD ($)	Apr. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Nov. 30, 2021 USD ($)
Statements of operations of unconsolidated joint venture
Net income		$ 655,018	$ 590,177	$ 816,666
Assets:
Total assets		6,936,169	6,648,362
Liabilities and stockholders’ equity
Equity		4,060,616	3,810,140	$ 3,660,795					$ 3,019,475
Total liabilities and stockholders’ equity		$ 6,936,169	$ 6,648,362
Number of investments in unconsolidated joint ventures | joint_venture		6	6	6
Number of other unconsolidated joint ventures with outstanding debt | joint_venture		0	0
Homebuilding
Assets:
Cash and cash equivalents		$ 597,973	$ 727,076
Other assets		105,920	96,987
Total assets		6,869,246	6,591,483
Financial service
Assets:
Cash and cash equivalents		1,220	266
Other assets	[1]	38,299	34,476
Total assets		66,923	56,879
Financial service | Interest Rate Lock Commitments
Liabilities and stockholders’ equity
Derivative asset, notional amount		16,000	13,900
Change in fair value included in gain (loss) on sale of mortgage loans held for sale		$ 2,100	(16,000)	$ 20,300
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Line of Credit
Liabilities and stockholders’ equity
Line of credit facility, current borrowing capacity							$ 70,000	$ 62,000
Unsecured revolving credit facility, expiration date		Apr. 19, 2026
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Line of Credit | Maximum
Liabilities and stockholders’ equity
Line of credit facility, current borrowing capacity						$ 80,000
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Line of Credit | Term Loan Commitment
Liabilities and stockholders’ equity
Principal						$ 55,000
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Line of Credit | Term Loan Commitment | Forecast
Liabilities and stockholders’ equity
Principal					$ 25,000
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Homebuilding
Statements of operations of unconsolidated joint venture
Revenues		$ 65,866	2,871	5,251
Construction and land costs		(48,627)	(1,111)	(3,875)
Other expenses, net		(5,033)	(2,907)	(2,935)
Net income		12,206	(1,147)	(1,559)
Assets:
Cash		18,869	16,260
Receivables		2,918	3,437
Inventories		158,322	152,456
Other assets		1,052	679
Total assets		181,161	172,832
Liabilities and stockholders’ equity
Accounts payable and other liabilities		8,091	9,632
Notes payable	[2]	47,300	53,386
Equity		125,770	109,814
Total liabilities and stockholders’ equity		181,161	172,832
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Financial service
Statements of operations of unconsolidated joint venture
Revenues		129,516	100,785	115,173
Other expenses, net		(75,165)	(69,390)	(73,573)
Net income		54,351	31,395	$ 41,600
Assets:
Cash and cash equivalents	[3]	31,702	29,163
Mortgage loans held for sale		122,828	164,252
Other assets		22,815	18,380
Total assets		177,345	211,795
Liabilities and stockholders’ equity
Accounts payable and other liabilities		15,398	13,763
Funding facilities		117,953	159,324
Equity		43,994	38,708
Total liabilities and stockholders’ equity		177,345	211,795
Restricted Cash		$ 1,300	$ 1,300

[1] Other assets at November 30, 2024 and 2023 included $38.2 million and $34.4 million, respectively, of contract assets for estimated future renewal commissions

[2] As of both November 30, 2024 and 2023, the unconsolidated joint venture in California that delivered homes in 2024 had borrowings outstanding under a revolving line of credit it entered into with a third-party lender in April 2022 to finance its land acquisition, development and construction activities.  In April 2024, the revolving line of credit was amended, increasing the aggregate commitment to $70.0 million from $62.0 million, with the amount of all advances through October 2024 not to exceed $80.0 million.  Principal repayments are made as homes are delivered, which began in May 2024.  Pursuant to the amendment, the revolving line of credit converted to a term loan and the aggregate commitment was reduced to $55.0 million effective October 31, 2024, and will be reduced to $25.0 million by April 30, 2025.  Borrowings under this term loan are secured by the underlying property and related project assets.  This term loan is scheduled to mature on April 19, 2026, unless extended or terminated pursuant to its applicable terms.  None of our other unconsolidated joint ventures had outstanding debt at November 30, 2024 or 2023

[3] ncludes restricted cash of $1.3 million at November 30, 2024 and 2023