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FAIR VALUE MEASUREMENTS (Details) (Fair Value, Measurements, Recurring [Member], USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments for contractual obligations $ 7,998 $ 7,408
Interest Rate Derivative Assets, at Fair Value 0 1,048
Other Assets, Fair Value Disclosure 250 250
Derivative Financial Instruments, Liabilities, Fair Value Disclosure (135) (7,376)
Assets, Fair Value Disclosure 8,113 1,330
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Preferred stock at beginning of period   250
Preferred stock at end of period 250 250
Fair Value, Inputs, Level 1 [Member]
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments for contractual obligations 7,998 7,408
Interest Rate Derivative Assets, at Fair Value 0 0
Other Assets, Fair Value Disclosure 0 0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure 0 0
Assets, Fair Value Disclosure 7,998 7,408
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Preferred stock at beginning of period   0
Preferred stock at end of period 0 0
Fair Value, Inputs, Level 2 [Member]
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments for contractual obligations 0 0
Interest Rate Derivative Assets, at Fair Value 0 1,048
Other Assets, Fair Value Disclosure 0 0
Derivative Financial Instruments, Liabilities, Fair Value Disclosure (135) (7,376)
Assets, Fair Value Disclosure (135) (6,328)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Preferred stock at beginning of period   0
Preferred stock at end of period 0 0
Fair Value, Inputs, Level 3 [Member]
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments for contractual obligations 0 0
Interest Rate Derivative Assets, at Fair Value 0 0
Other Assets, Fair Value Disclosure 250  
Derivative Financial Instruments, Liabilities, Fair Value Disclosure 0 0
Assets, Fair Value Disclosure 250 250
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Preferred stock at beginning of period 250  
Gain (Loss) on Investments 0  
Preferred stock at end of period $ 250