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STOCK-BASED AWARDS (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Stock-Based Awards    
Total stock-based compensation expense (in dollars) $ 968 $ 778
Units    
Outstanding-end of period (in shares) 715,000  
Restricted stock awards    
Stock-Based Awards    
Vesting period 3 years  
Total stock-based compensation expense (in dollars) $ 968 $ 778
Units    
Outstanding-beginning of year (in shares) 349,000  
Granted at fair value (in shares) 456,000  
Vested (in shares) (88,000)  
Forfeited (in shares) (2,000)  
Outstanding-end of period (in shares) 715,000  
Weighted Average Grant Date Fair Value    
Outstanding-beginning of year (in dollars per share) $ 24.80  
Granted at fair value (in dollars per share) 14.39  
Vested (in dollars per share) 22.95  
Forfeited (in dollars per share) 25.52  
Outstanding-end of period (in dollars per share) $ 18.40  
Restricted stock awards | Officers, Board Members, and Employees [Member]    
Units    
Granted at fair value (in shares) 455,750  
Restricted stock awards | First year    
Stock-Based Awards    
Annual award vesting percentage 33.30%  
Restricted stock awards | Second year    
Stock-Based Awards    
Annual award vesting percentage 33.30%  
Restricted stock awards | Third year    
Stock-Based Awards    
Annual award vesting percentage 33.30%