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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Schedule Of Computation Of Basic And Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):
 
 
For the Year Ended December 31,
 
2017
2016
2015
 
 
 
 
Net income available to common shareholders
$
54,310

$
52,128

$
54,097

Less: earnings allocated to participating securities
$
(591
)
$
(623
)
$
(613
)
Net earnings allocated to common shareholders
$
53,719

$
51,505

$
53,484

 
 
 
 
Distributed earnings allocated to common shares outstanding
$
27,497

$
25,710

$
25,212

Undistributed earnings allocated to common shares outstanding
26,222

25,795

28,272

Net earnings allocated to common shareholders
$
53,719

$
51,505

$
53,484

 
 
 
 
Average shares outstanding, basic
15,412

14,900

15,123

Effect of dilutive securities
24

13

48

Average shares outstanding, diluted
15,436

14,913

15,171

 
 
 
 
Basic earnings per share
$
3.49

$
3.46

$
3.54

Diluted earnings per share
$
3.48

$
3.45

$
3.53