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Investments in Unconsolidated Joint Ventures (Financial Information for Unconsolidated Joint Ventures) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Nov. 30, 2013
Statements of operations of unconsolidated joint venture      
Revenues $ 6,118 $ 0  
Construction and land costs (3,523) 0  
Other expenses, net (1,130) (855)  
Income (loss) 1,465 (855)  
Assets      
Cash 17,958   18,752
Receivables 4,619   4,902
Inventories 165,133   381,195
Other assets 149   1,183
Total assets 187,859   406,032
Liabilities and equity      
Accounts payable and other liabilities 22,843   85,386
Equity 165,016   320,646
Total liabilities and equity $ 187,859   $ 406,032