Annual report pursuant to Section 13 and 15(d)

SHARE-BASED COMPENSATION Nonvested Activity (Details)

v3.3.1.900
SHARE-BASED COMPENSATION Nonvested Activity (Details) - Restricted Stock - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Non-vested at beginning of period (in shares) 195,920    
Granted (in shares) 193,688 127,050 270,360
Vested (in shares) (75,011)    
Forfeited (in shares) (3,225)    
Non-vested at end of period (in shares) 311,372 195,920  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) [Roll Forward]      
Non-vested at beginning of period (in dollars per share) $ 25.48    
Granted (in dollars per share) 20.82 $ 29.23 $ 21.28
Vested (in dollars per share) 25.54    
Forfeited (in dollars per share) 24.43    
Non-vested at end of period (in dollars per share) $ 22.58 $ 25.48  
Director      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted (in shares) 16,938    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) [Roll Forward]      
Granted (in dollars per share) $ 21.26    
Employee      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Granted (in shares) 176,750    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) [Roll Forward]      
Granted (in dollars per share) $ 20.78