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RELATED PARTIES
6 Months Ended
Jun. 30, 2015
RELATED PARTIES [Abstract]  
RELATED PARTIES
15. RELATED PARTIES

GMSL has investments in various entities for which it exercises significant influence. Summary of transactions with such entities during the three and six months ended June 30, 2015 and balances outstanding at June 30, 2015 is as follows (in thousands):
 
  
Three Months Ended
June 30, 2015
  
Six Months Ended
June 30, 2015
 
Net revenue
 
$
8,763
  
$
14,436
 
Operating expenses
  
998
   
1,968
 
Interest expense
  
412
   
822
 

  
June 30, 2015
 
Accounts receivable
 
$
9,269
 
Long-term debt
  
40,580
 
Accounts payable
  
39