Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) $ in Thousands		3 Months Ended		6 Months Ended
		May 31, 2023 USD ($) joint_venture	May 31, 2022 USD ($)	May 31, 2023 USD ($) joint_venture	May 31, 2022 USD ($)	Feb. 28, 2023 USD ($)	Nov. 30, 2022 USD ($) joint_venture	Feb. 28, 2022 USD ($)	Nov. 30, 2021 USD ($)
Statements of operations of unconsolidated joint venture
Net income		$ 164,442	$ 210,670	$ 289,942	$ 344,927
Assets
Total assets		6,483,017		6,483,017			$ 6,651,930
Liabilities and equity
Equity		3,766,482	3,290,995	3,766,482	3,290,995	$ 3,695,463	3,660,795	$ 3,134,316	$ 3,019,475
Total liabilities and stockholders’ equity		$ 6,483,017		$ 6,483,017			$ 6,651,930
Number of investments in unconsolidated joint ventures | joint_venture		6		6			6
Number of joint ventures with funding commitments | joint_venture		1		1			1
Number of other unconsolidated joint ventures with outstanding debt | joint_venture		0		0			0
Financial services
Assets
Cash and cash equivalents		$ 420		$ 420			$ 1,681
Other assets	[1]	30,256		30,256			27,698
Total assets		56,032		56,032			59,532
Homebuilding
Assets
Cash and cash equivalents		557,037		557,037			328,517
Other assets		106,598		106,598			101,051
Total assets		6,426,985		6,426,985			6,592,398
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Unsecured revolving credit facility
Liabilities and equity
Line of credit facility, current borrowing capacity		$ 62,000		62,000
Unsecured revolving credit facility, expiration date		Apr. 19, 2026
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Financial services
Statements of operations of unconsolidated joint venture
Revenues		$ 28,450	50,224	48,640	80,200
Other expense, net		(17,599)	(20,607)	(34,624)	(40,287)
Net income		10,851	29,617	14,016	39,913
Assets
Cash and cash equivalents		21,818		21,818			28,120
Mortgage loans held for sale		186,573		186,573			250,572
Other assets		28,173		28,173			33,176
Total assets		236,564		236,564			311,868
Liabilities and equity
Accounts payable and other liabilities		13,255		13,255			15,590
Funding facilities		179,981		179,981			242,944
Equity		43,328		43,328			53,334
Total liabilities and stockholders’ equity		236,564		236,564			311,868
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Financial services | Interest Rate Lock Commitments
Liabilities and equity
Derivative asset, notional amount		25,600		25,600			29,800
Change in fair value included in gain on sale of mortgage loans held for sale		2,700	25,800	4,200	33,400
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Homebuilding
Statements of operations of unconsolidated joint venture
Revenues		1,171	1,108	1,171	3,958
Construction and land costs		(683)	(772)	(686)	(3,071)
Other expense, net		(960)	(918)	(2,410)	(1,348)
Net income		(472)	$ (582)	(1,925)	$ (461)
Assets
Cash		13,823		13,823			14,066
Receivables		2,886		2,886			3,394
Inventories		138,290		138,290			114,465
Other assets		554		554			633
Total assets		155,553		155,553			132,558
Liabilities and equity
Accounts payable and other liabilities		8,085		8,085			8,369
Notes payable		47,457		47,457			34,396
Equity		100,011		100,011			89,793
Total liabilities and stockholders’ equity		$ 155,553		$ 155,553			$ 132,558

[1] Other assets at May 31, 2023 and November 30, 2022 included $30.2 million and $27.6 million, respectively, of contract assets for estimated future renewal commissions.