Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 28, 2017	Feb. 29, 2016	Nov. 30, 2016
Statements of operations of unconsolidated joint venture
Revenues		$ 19,722	$ 3,338
Construction and land costs		(17,895)	(7,495)
Other expenses, net		(1,096)	(1,123)
Income (loss)		731	$ (5,280)
Assets
Cash		28,083		$ 31,928
Receivables		889		882
Inventories		152,689		165,385
Other Assets		1,089		629
Total assets		182,750		198,824
Liabilities and equity
Accounts payable and other liabilities		19,446		19,880
Equity Method Investments Summarized Financial Information Debt	[1]	35,987		44,381
Equity		127,317		134,563
Total liabilities and equity		$ 182,750		$ 198,824

[1] One of our unconsolidated joint ventures has a construction loan agreement with a third-party lender to finance its land development activities that is secured by the underlying property and related project assets. Outstanding debt under the agreement is non-recourse to us and is scheduled to mature in August 2018. None of our other unconsolidated joint ventures had outstanding debt at February 28, 2017 or November 30, 2016.