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STOCK-BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS - Summary of Performance-Based Restricted Stock Activity (Details) - Performance Shares - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Performance- based Restricted Shares      
Outstanding beginning of period (in shares) 426,599    
Granted (in shares) 111,135    
Vested (in shares) (102,309)    
Canceled (in shares) (96,955)    
Outstanding end of period (in shares) 338,470 426,599  
Expected to vest (in shares) 40,789    
Weighted Average Grant Date Fair Value      
Outstanding beginning of period (in usd per share) $ 17.12    
Granted (in usd per share) 17.27 $ 13.70 $ 22.00
Vested (in usd per share) 17.62    
Canceled (in usd per share) 17.62    
Outstanding end of period (in usd per share) 17.01 $ 17.12  
Expected to vest (in usd per share) $ 15.89