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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the reconciliation from basic to diluted average common shares and the calculations of net income per common share. Net income for basic and diluted calculations does not differ.
(in thousands, except per share amounts)
2013
 
2012
 
2011
 
 
 
 
 
 
Net income
$
36,094

 
$
28,903

 
$
32,687

 
 
 
 
 
 
Average common shares:
 

 
 

 
 

Basic (weighted-average outstanding shares)
12,050

 
11,899

 
11,848

Dilutive potential common shares from stock options
162

 
159

 
118

 
Diluted (weighted-average outstanding shares)
12,212

 
12,058

 
11,966

 
 
 
 
 
 
Basic earnings per share
$
3.00

 
$
2.43

 
$
2.76

 
 
 
 
 
 
Diluted earnings per share
$
2.96

 
$
2.40

 
$
2.73