FAIR VALUE MEASUREMENTS (Details 3) (USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Estimated fair value of the Term Loans    
Carrying Value $ 356,388,000 $ 357,970,000
Term Loan B-1    
Estimated fair value of the Term Loans    
Fair value of remaining financial instruments not recognized at fair value 300,000,000  
Term loans maturity period 7 years  
Variable interest rate base LIBOR  
Carrying Value 290,821,000 291,476,000
Estimated Fair Value 292,225,000  
Term Loan B-2    
Estimated fair value of the Term Loans    
Fair value of remaining financial instruments not recognized at fair value 75,000,000  
Term loans maturity period 4 years  
Variable interest rate base LIBOR  
Carrying Value 65,567,000 66,494,000
Estimated Fair Value $ 65,379,000  
LIBOR | Term Loan B-1    
Estimated fair value of the Term Loans    
Interest rate added to base rate (as a percent) 2.75%  
Interest rate, variable interest rate floor (as a percent) 0.75%  
LIBOR | Term Loan B-2    
Estimated fair value of the Term Loans    
Interest rate added to base rate (as a percent) 2.75%  
Interest rate, variable interest rate floor (as a percent) 0.00%