Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Nonvested Stock Activity) (Details)

v3.10.0.1
EMPLOYEE BENEFITS AND STOCK BASED COMPENSATION (Summary of Nonvested Stock Activity) (Details)
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Restricted Stock  
Number of Shares of RSAs  
Beginning balance (in shares) | shares 326,736
Granted (in shares) | shares 212,749
Net settle for taxes (in shares) | shares (38,700)
Vested (in shares) | shares (113,023)
Forfeited (in shares) | shares (12,348)
Ending balance (in shares) | shares 375,414
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]  
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares $ 27.68
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares 37.36
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares 40.23
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares 29.82
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares 30.57
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares $ 32.41
Performance Stock  
Number of Shares of RSAs  
Beginning balance (in shares) | shares 134,350
Granted (in shares) | shares 61,310
Net settle for taxes (in shares) | shares (16,342)
Vested (in shares) | shares (26,977)
Forfeited (in shares) | shares (2,294)
Ending balance (in shares) | shares 150,047
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]  
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares $ 24.98
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares 34.28
Weighted Average Grant Date Fair Value, Net settle for taxes (in dollars per share) | $ / shares 38.64
Weighted Average Grant Date Fair Value, Vested (in dollars per share) | $ / shares 14.32
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares 37.19
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares $ 31.67