Supplemental Disclosure to Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	May 31, 2019	May 31, 2018	Dec. 01, 2018	Nov. 30, 2018	Nov. 30, 2017
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	$ 179,764	$ 670,554		$ 575,119	$ 720,861
Supplemental disclosures of cash flow information:
Interest paid, net of amounts capitalized	(2,809)	(3,665)
Income taxes paid	3,163	7,595
Supplemental disclosures of non-cash activities:
Decrease in inventories due to adoption of ASC 606	3,780,853			3,582,839
Increase in property and equipment, net due to adoption of ASC 606	61,221			24,283
Increase (decrease) in consolidated inventories not owned	(16,262)	17,518
Inventories acquired through seller financing	0	36,697
Inspirada Builders LLC
Supplemental disclosures of non-cash activities:
Increase in inventories due to distributions of land and land development from an unconsolidated joint venture	3,983	5,113
Accounting Standards Update 2014-09 [Member]
Supplemental disclosures of non-cash activities:
Decrease in inventories due to adoption of ASC 606		0	$ (35,288)
Increase in property and equipment, net due to adoption of ASC 606		0	31,194
Home Building [Member]
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	178,876	669,798		574,359
Supplemental disclosures of non-cash activities:
Decrease in inventories due to adoption of ASC 606	3,780,853		3,547,551	3,582,839
Increase in property and equipment, net due to adoption of ASC 606	61,221		$ 55,477	24,283
Financial Service [Member]
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	$ 888	$ 756		$ 760