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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Changes in accumulated other comprehensive income (loss) by component        
Balance at the beginning of the period     $ (8,222)  
Other comprehensive income (loss) (125) 1,794 (59) 1,802
Balance at the end of the period (8,281)   (8,281)  
Gains and Losses on Cash Flow Hedges
       
Changes in accumulated other comprehensive income (loss) by component        
Balance at the beginning of the period (8,156)   (8,222)  
Other comprehensive income before reclassifications (673)   (1,148)  
Amounts reclassified from accumulated other comprehensive loss 548   1,089  
Other comprehensive income (loss) (125)   (59)  
Balance at the end of the period $ (8,281)   $ (8,281)