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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Restricted Cash) (Details) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2013
Nov. 30, 2012
Restricted Cash and Cash Equivalents Items [Line Items]    
Total restricted cash $ 29,821 $ 29,350
Other Current Assets [Member]
   
Restricted Cash and Cash Equivalents Items [Line Items]    
Related to borrowing arrangements and others: 25,624 23,247
Other Assets, Balance Sheet Disclosure [Member]
   
Restricted Cash and Cash Equivalents Items [Line Items]    
Related to long-term projects: $ 4,197 $ 6,103