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DERIVATIVE INSTRUMENTS (Details 4) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
counterparty
Dec. 31, 2013
Credit Risk    
Number of derivative counterparties that are not lenders or affiliates of lenders under credit facility 1  
Derivative Assets    
Gross amounts of recognized assets $ 758 $ 5,592
Gross amounts offset in the balance sheet 0 0
Net amounts of assets presented in the balance sheet 758 5,592
Gross amounts not offset in the balance sheet:    
Derivative instruments (641) (1,049)
Cash collateral received 0 0
Net amount 117 4,543
Derivative Liabilities    
Gross amounts of recognized liabilities 15,443 4,542
Gross amounts offset in the balance sheet 0 0
Net amounts of liabilities presented in the balance sheet 15,443 4,542
Gross amounts not offset in the balance sheet:    
Derivative instruments (641) (1,049)
Cash collateral pledged 0 0
Net amount $ 14,802 $ 3,493