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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
Summary of earnings per share
Earnings per share consisted of the following components for the periods indicated:

 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
 
(Dollars in Thousands)
 
(Dollars in Thousands)
NET INCOME
$
11,601

 
$
11,959

 
$
32,658

 
$
34,267

 
 
 
 
 
 
 
 
 
Weighted Average Shares
 
Weighted Average Shares
BASIC SHARES
21,654,188

 
21,463,714

 
21,613,157

 
21,401,885

EFFECT OF DILUTIVE SECURITIES
52,116

 
13,077

 
31,300

 
32,452

DILUTIVE SHARES
21,706,304

 
21,476,791

 
21,644,457

 
21,434,337

NET INCOME PER SHARE:
 
 
 
 
 
 
 
BASIC EPS
0.54

 
0.56

 
1.51

 
1.60

EFFECT OF DILUTIVE SECURITIES
0.01

 

 

 

DILUTIVE EPS
0.53

 
0.56

 
1.51

 
1.60

Details of anti dilutive options to purchase common stock
The following table illustrates the options to purchase common stock that were excluded from the calculation of diluted earnings per share because they were anti-dilutive:

 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
STOCK OPTIONS
357,459

 
888,963

 
614,181

 
820,871