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ACCOUNTING FOR DERIVATIVES (Details 2) (Derivatives designated as cash flow hedges, USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Effect of derivative instruments on results of operations    
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives   $ (3,778)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)   (12,321)
Interest rate hedges
   
Effect of derivative instruments on results of operations    
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives (4,861) (3,778)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss) (9,747) (12,731)
Foreign currency hedge
   
Effect of derivative instruments on results of operations    
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)   $ 410