Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) $ in Thousands		12 Months Ended
		Nov. 30, 2023 USD ($) joint_venture	Nov. 30, 2022 USD ($) joint_venture	Nov. 30, 2021 USD ($)	Nov. 30, 2020 USD ($)
Statements of operations of unconsolidated joint venture
Net income		$ 590,177	$ 816,666	$ 564,746
Assets:
Total assets		6,648,362	6,651,930
Liabilities and stockholders’ equity
Equity		3,810,140	3,660,795	3,019,475	$ 2,665,769
Total liabilities and stockholders’ equity		$ 6,648,362	$ 6,651,930
Number of investments in unconsolidated joint ventures | joint_venture		6	6
Number of unconsolidated joint ventures with loan commitments | joint_venture		1	1
Number of other unconsolidated joint ventures with outstanding debt | joint_venture		0	0
Homebuilding
Assets:
Cash and cash equivalents		$ 727,076	$ 328,517
Other assets		96,987	101,051
Total assets		6,591,483	6,592,398
Financial service
Assets:
Cash and cash equivalents		266	1,681
Other assets	[1]	34,476	27,698
Total assets		56,879	59,532
Financial service | Interest Rate Lock Commitments
Liabilities and stockholders’ equity
Derivative asset, notional amount		13,900	29,800
Change in fair value included in gain on sale of mortgage loans held for sale		(16,000)	20,300	2,800
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Line of Credit
Liabilities and stockholders’ equity
Line of credit facility, current borrowing capacity		$ 62,000
Unsecured revolving credit facility, expiration date		Apr. 19, 2026
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Homebuilding
Statements of operations of unconsolidated joint venture
Revenues		$ 2,871	5,251	14,818
Construction and land costs		(1,111)	(3,875)	(12,398)
Other expenses, net		(2,907)	(2,935)	(2,640)
Net income		(1,147)	(1,559)	(220)
Assets:
Cash		16,260	14,066
Receivables		3,437	3,394
Inventories		152,456	114,465
Other assets		679	633
Total assets		172,832	132,558
Liabilities and stockholders’ equity
Accounts payable and other liabilities		9,632	8,369
Notes payable	[2]	53,386	34,396
Equity		109,814	89,793
Total liabilities and stockholders’ equity		172,832	132,558
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Financial service
Statements of operations of unconsolidated joint venture
Revenues		100,785	115,173	126,398
Other expenses, net		(69,390)	(73,573)	(79,221)
Net income		31,395	41,600	$ 47,177
Assets:
Cash and cash equivalents		29,163	28,120
Mortgage loans held for sale		164,252	250,572
Other assets		18,380	33,176
Total assets		211,795	311,868
Liabilities and stockholders’ equity
Accounts payable and other liabilities		13,763	15,590
Funding facilities		159,324	242,944
Equity		38,708	53,334
Total liabilities and stockholders’ equity		$ 211,795	$ 311,868

[1] Other assets at November 30, 2023 and 2022 included $34.4 million and $27.6 million, respectively, of contract assets for estimated future renewal commissions

[2] As of both November 30, 2023 and 2022, one of our unconsolidated joint ventures 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. Borrowings under this line of credit, which has a maximum commitment of $62.0 million, are secured by the underlying property and related project assets. The line of credit 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, 2023 or 2022