Supplemental Disclosure to Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	May 31, 2017	May 31, 2016	Nov. 30, 2016	Nov. 30, 2015
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	$ 349,372	$ 276,549	$ 593,000	$ 560,341
Supplemental disclosures of cash flow information:
Interest paid, net of amounts capitalized	2,105	2,729
Income taxes paid	3,039	2,635
Supplemental disclosures of noncash activities:
Increase (decrease) in consolidated inventories not owned	(37,371)	(32,324)
Cost of inventories acquired through seller financing	28,160	32,436
Homebuilding
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	348,588	274,849	592,086
Financial Services
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	784	1,700	$ 914
Inspirada Builders LLC [Member]
Supplemental disclosures of noncash activities:
Increase in inventories due to distribution of land from unconsolidated joint venture	3,676	4,875
Warranty Reserves [Member]
Supplemental disclosures of cash flow information:
Loss Contingency, Receivable, Period Increase (Decrease)	$ 0	$ 2,151