Supplemental Disclosure to Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017	Dec. 01, 2018	Nov. 30, 2016
Summary of cash and cash equivalents at the end of the year:
Cash and cash equivalents	$ 454,858	$ 575,119	$ 720,861		$ 593,000
Interest paid, net of amounts capitalized	(1,327)	8,338	7,581
Income taxes paid	4,479	11,949	4,664
Income taxes refunded	221	220	202
Inventories	3,704,602	3,582,839
Property and equipment, net	65,043	24,283
Supplemental disclosure of non-cash activities:
Increase (decrease) in consolidated inventories not owned	(9,634)	16,098	(44,833)
Inventories acquired through seller financing	8,967	44,586	49,658
Homebuilding:
Summary of cash and cash equivalents at the end of the year:
Cash and cash equivalents	453,814	574,359	720,630
Financial services [Member]
Summary of cash and cash equivalents at the end of the year:
Cash and cash equivalents	1,044	760	231
Inspirada Builders LLC [Member]
Supplemental disclosure of non-cash activities:
Increase in inventories due to distributions of land and land development from an unconsolidated joint venture	$ 9,662	17,637	6,650
Accounting Standards Update 2014-09 [Member]
Summary of cash and cash equivalents at the end of the year:
Inventories		0	0	$ (35,288)
Property and equipment, net		$ 0	$ 0	$ 31,194