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FAIR VALUE (Details) (USD $)
12 Months Ended 1 Months Ended
Feb. 29, 2012
Note receivable
Feb. 29, 2012
Long-term debt - fixed rate
Minimum
Feb. 28, 2011
Long-term debt - fixed rate
Minimum
Feb. 29, 2012
Long-term debt - fixed rate
Maximum
Feb. 28, 2011
Long-term debt - fixed rate
Maximum
Nov. 30, 2011
Auction rate securities
Sep. 30, 2011
Auction rate securities
Nov. 02, 2011
Auction rate securities
Sep. 15, 2011
Auction rate securities
Feb. 28, 2011
Auction rate securities
scenario
Feb. 29, 2012
Significant Other Observable Market Inputs (Level 2)
Long-term debt - fixed rate
Feb. 29, 2012
Recurring
Fair Values
Feb. 28, 2011
Recurring
Fair Values
Feb. 29, 2012
Recurring
Fair Values
Interest rate swaps
Feb. 28, 2011
Recurring
Fair Values
Interest rate swaps
Feb. 29, 2012
Recurring
Fair Values
Foreign currency contracts
Feb. 28, 2011
Recurring
Fair Values
Foreign currency contracts
Feb. 29, 2012
Recurring
Fair Values
Long-term debt - fixed rate
Feb. 28, 2011
Recurring
Fair Values
Long-term debt - fixed rate
Feb. 29, 2012
Recurring
Fair Values
Long-term debt - floating rate
Feb. 28, 2011
Recurring
Fair Values
Long-term debt - floating rate
Feb. 29, 2012
Recurring
Fair Values
Money market accounts
Feb. 28, 2011
Recurring
Fair Values
Money market accounts
Feb. 28, 2011
Recurring
Fair Values
Commercial paper
Feb. 28, 2011
Recurring
Fair Values
Mutual funds
Feb. 28, 2011
Recurring
Fair Values
Auction rate securities
Feb. 29, 2012
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Feb. 28, 2011
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Feb. 29, 2012
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Money market accounts
Feb. 28, 2011
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Money market accounts
Feb. 28, 2011
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Commercial paper
Feb. 28, 2011
Recurring
Quoted Prices in Active Markets for Identical Assets (Level 1)
Mutual funds
Feb. 29, 2012
Recurring
Significant Other Observable Market Inputs (Level 2)
Feb. 28, 2011
Recurring
Significant Other Observable Market Inputs (Level 2)
Feb. 29, 2012
Recurring
Significant Other Observable Market Inputs (Level 2)
Interest rate swaps
Feb. 28, 2011
Recurring
Significant Other Observable Market Inputs (Level 2)
Interest rate swaps
Feb. 29, 2012
Recurring
Significant Other Observable Market Inputs (Level 2)
Foreign currency contracts
Feb. 28, 2011
Recurring
Significant Other Observable Market Inputs (Level 2)
Foreign currency contracts
Feb. 29, 2012
Recurring
Significant Other Observable Market Inputs (Level 2)
Long-term debt - fixed rate
Feb. 28, 2011
Recurring
Significant Other Observable Market Inputs (Level 2)
Long-term debt - fixed rate
Feb. 29, 2012
Recurring
Significant Other Observable Market Inputs (Level 2)
Long-term debt - floating rate
Feb. 28, 2011
Recurring
Significant Other Observable Market Inputs (Level 2)
Long-term debt - floating rate
Feb. 28, 2011
Recurring
Significant Unobservable Inputs (Level 3)
Feb. 28, 2011
Recurring
Significant Unobservable Inputs (Level 3)
Auction rate securities
Assets:                                                                                        
Cash and cash equivalents                                           $ 801,000 $ 6,435,000 $ 1,560,000         $ 801,000 $ 6,435,000 $ 1,560,000                          
Investments                                                 1,233,000             1,233,000                        
Note receivable                       737,000                                         737,000                      
Investments                                                   20,711,000                                   20,711,000
Total assets                       1,538,000 29,939,000                           801,000 9,228,000         737,000                   20,711,000  
Liabilities:                                                                                        
Long-term debt                     104,450,000             104,450,000 104,650,000 75,000,000 125,000,000                                   104,450,000 104,650,000 75,000,000 125,000,000    
Derivative liabilities                           8,553,000 9,625,000 163,000 970,000                                   8,553,000 9,625,000 163,000 970,000            
Total liabilities                       188,166,000 240,245,000                                       188,166,000 240,245,000                    
Fair value additional disclosures                                                                                        
Number of scenarios under which principal can become available                   3                                                                    
Par value of investments               18,800,000 18,800,000                                                                      
Sale price of securities as a percentage of par value           96.00% 96.00%                                                                          
Sale proceeds           $ 18,050,000                                                                            
Discount rate (as a percent) 6.95% 0.54% 1.86% 3.54% 4.36%