Supplemental Guarantor Information (Condensed Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands		Feb. 28, 2021	Nov. 30, 2020	Feb. 29, 2020	Nov. 30, 2019
Assets
Cash and cash equivalents		$ 570,959	$ 682,529	$ 430,927	$ 454,858
Receivables		249,234	272,659
Inventories		4,123,953	3,897,482
Property and equipment, net		67,558	65,547
Other assets		118,306	125,510
Total assets		5,426,784	5,356,442
Liabilities and stockholders’ equity
Mortgages and notes payable		1,747,007	1,747,175
Stockholders' Equity Attributable to Parent		2,748,184	2,665,769	2,443,104	$ 2,383,122
Total liabilities and stockholders’ equity		5,426,784	5,356,442
Home Building [Member]
Assets
Cash and cash equivalents		569,793	681,190	429,706
Receivables		249,234	272,659
Inventories		4,123,953	3,897,482
Investments in unconsolidated joint ventures		46,453	46,785
Property and equipment, net		67,558	65,547
Deferred tax assets, net		215,145	231,067
Other assets		118,306	125,510
Total assets		5,390,442	5,320,240
Liabilities and stockholders’ equity
Mortgages and notes payable		1,747,007	1,747,175
Total Liabilities		2,676,658	2,688,044
Financial Service [Member]
Assets
Cash and cash equivalents		1,166	1,339	$ 1,221
Receivables		1,777	1,988
Investments in unconsolidated joint ventures		11,197	10,978
Other assets	[1]	22,202	21,897
Total assets		36,342	36,202
Liabilities and stockholders’ equity
Accounts payable and accrued expenses		1,942	2,629
Financial services		$ 1,942	$ 2,629

[1] Other assets at February 28, 2021 and November 30, 2020 included $21.9 million and $21.5 million, respectively, of contract assets for estimated future renewal commissions.