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EARNINGS PER SHARE (Tables)
 6 Months Ended
Jun. 30, 2018
Earnings Per Share [Abstract]  
Schedule of information used to compute basic and diluted earnings per share
The following table presents the information used to compute basic and diluted earnings per common share for the periods indicated:
 
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
(dollars in thousands, except per share data)
2018
 
2017
 
2018
 
2017
Net income
$
14,224

 
$
12,025

 
$
28,501

 
$
25,104

 
 
 
 
 
 
 
 
Weighted average common shares outstanding - basic
29,510,175

 
30,568,247

 
29,658,051

 
30,641,165

Dilutive effect of employee stock options and awards
204,767

 
235,478

 
223,483

 
238,758

Weighted average common shares outstanding - diluted
29,714,942

 
30,803,725

 
29,881,534

 
30,879,923

 
 
 
 
 
 
 
 
Basic earnings per common share
$
0.48

 
$
0.39

 
$
0.96

 
$
0.82

Diluted earnings per common share
$
0.48

 
$
0.39

 
$
0.95

 
$
0.81

 
 
 
 
 
 
 
 
Anti-dilutive employee stock options and awards outstanding
—

 
33

 
—

 
25