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EARNINGS PER SHARE (Tables)
 9 Months Ended
Sep. 30, 2016
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
September 30,
 
Nine Months Ended
September 30,
(dollars in thousands, except per share data)
2016
 
2015
 
2016
 
2015
Net income
$
11,466

 
$
12,206

 
$
34,784

 
$
34,936

 
 
 
 
 
 
 
 
Weighted average shares outstanding - basic
30,943,756

 
31,330,964

 
31,088,729

 
32,548,479

Dilutive effect of employee stock options and awards
198,372

 
418,916

 
188,673

 
383,868

Weighted average shares outstanding - diluted
31,142,128

 
31,749,880

 
31,277,402

 
32,932,347

 
 
 
 
 
 
 
 
Basic earnings per common share
$
0.37

 
$
0.39

 
$
1.12

 
$
1.07

Diluted earnings per common share
$
0.37

 
$
0.38

 
$
1.11

 
$
1.06