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ACCOUNTING FOR DERIVATIVES (Details 2) (Derivatives designated as cash flow hedges, USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Effect of derivative instruments on results of operations        
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives   $ (10,205)   $ (13,983)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)   (11,364)   (23,685)
Interest rate hedges
       
Effect of derivative instruments on results of operations        
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives (5,265) (10,205) (10,126) (13,983)
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss) (9,854) (11,364) (19,601) (24,095)
Foreign currency hedge
       
Effect of derivative instruments on results of operations        
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income (Loss) into Income (Loss)       $ 410