EQUITY-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of assumptions to estimate the grant date fair value of stock options and SARs
   
For The Years Ended December 31,
 
   
2013
   
2012
   
2011
 
Expected volatility
    53.4% - 69.9 %     55.9% - 72.4 %     66.6% - 77.1 %
Weighted-average volatility
    67.7 %     67.8 %     72.3 %
Expected term (in years)
    6.1       6.3       5.5  
Risk-free rate
    1.51 %     1.03 %     1.91 %
Dividend yield
    0 %     0 %     0 %
Schedule of summary of stock option and SAR activity outstanding
              Weighted  
         
Average
 
   
Shares
   
Exercise Price
 
Outstanding, January 1, 2013
    1,662     $ 6.37  
Granted
    478       11.19  
Exercised
    (433 )     5.90  
Forfeited or expired
    (270 )     8.32  
Outstanding, at December 31, 2013
    1,437     $ 7.77  
Exercisable at December 31, 2013
    722     $ 6.86  
Schedule of summary of stock options and SARs
   
Outstanding
   
Exercisable
 
Total shares
    1,437       722  
Aggregate intrinsic value
  $ 7,452     $ 4,398  
Weighted-average remaining
               
contractual term (years)
    6.3       4.4  
Schedule of summary of stock option and SAR exercise data
                         
   
For the years ended December 31,
 
   
2013
   
2012
   
2011
 
Options and SARs exercised
    433       638       205  
Net shares issued
    199       336       70  
Total intrinsic value exercised
  $ 2,552     $ 3,967     $ 404  
Cash received
    338       560       366  
Recognized tax benefit
    2,208       2,619       372  
Schedule of summary of non-vested share restricted stock award activity
             Weighted  
            Average Grant  
   
Shares
     Date Fair Value  
Outstanding, January 1, 2013
     54      $ 8.92   
Granted
    212       12.14  
Vested
    (54 )     8.92  
Forfeited
    (22 )     12.55  
Outstanding, as of December 31, 2013
    190     $ 12.09