v3.3.1.900
LONG-TERM DEBT LIABILITIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Total $ 488,750 $ 482,000
Current amount of long-term debt (31,832) (3,000)
Unamortized original issue discount (1,731) (2,071)
Total long-term debt 455,187 476,929
Outstanding standby letter of credit $ 670 620
Stated interest rate percentage, senior unsecured debt 10.50%  
Revolver, due November 23, 2016    
Debt Instrument [Line Items]    
Credit Facility $ 26,000 0
Term B Loan, due November 23, 2018    
Debt Instrument [Line Items]    
Credit Facility 242,750 262,000
Unsecured notes due December 1, 2019    
Debt Instrument [Line Items]    
Senior unsecured notes $ 220,000 $ 220,000