Supplemental Disclosure to Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Nov. 30, 2017	Nov. 30, 2016
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	$ 354,976	$ 494,807	$ 720,861	$ 593,000
Interest Paid, Net	(9,401)	(17,111)
Supplemental disclosures of cash flow information:
Income taxes paid	9,808	3,464
Supplemental disclosures of noncash activities:
Increase (decrease) in consolidated inventories not owned	20,370	(22,018)
Inventories acquired through seller financing	44,586	49,658
Homebuilding
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	354,361	494,053	720,630
Financial Services
Summary of cash and cash equivalents at end of period:
Cash and cash equivalents	615	754	$ 231
Inspirada Builders LLC
Supplemental disclosures of noncash activities:
Increase in inventories due to distributions of land and land development from an unconsolidated joint venture	$ 10,390	$ 5,198