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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details 2) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair value disclosure    
Debt obligations $ 119,159 $ 112,845
Carrying value
   
Fair value disclosure    
Debt obligations 114,351 105,832
Fair value disclosure
   
Fair value disclosure    
Debt obligations 114,420 105,842
Term Loan
   
Fair value disclosure    
Debt obligations 77,500 83,750
Term Loan | Carrying value
   
Fair value disclosure    
Debt obligations 77,500 83,750
Term Loan | Fair value disclosure
   
Fair value disclosure    
Debt obligations 77,500 83,750
Notes payable
   
Fair value disclosure    
Debt obligations 36,851 22,082
Notes payable | Carrying value
   
Fair value disclosure    
Debt obligations 36,851 22,082
Notes payable | Fair value disclosure
   
Fair value disclosure    
Debt obligations $ 36,920 $ 22,092