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Earnings Per Share
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
EARNINGS PER SHARE
NOTE 5 — EARNINGS PER SHARE
     Basic earnings per share is calculated by dividing net income available to common shareholders by the weighted average number of participating common shares outstanding. Unvested restricted shares are considered outstanding in the computation of basic earnings per share as holders of unvested restricted stock awards participate fully in the awards of stock ownership of the Company, including voting and dividend rights. Diluted earnings per share is calculated in a manner similar to that of basic earnings per share except that the weighted average number of common shares outstanding is increased to include the number of additional common shares that would have been outstanding if all potentially dilutive common shares (such as those resulting from the exercise of stock options) were issued during the period, computed using the treasury stock method.
     During 2011, the Company issued performance-based restricted stock awards to non-executive bank employees which will vest if certain performance measures are met. These performance-based restricted stock awards do not participate in the rewards of stock ownership of the Company until vested. As a result, these awards are not considered in the calculation of basic earnings per share. To the extent the performance measures outlined in the performance-based restricted stock award agreements are met in advance of vesting, the shares will be included in the diluted earnings per share calculation, computed using the treasury stock method.
     Earnings per share consisted of the following components for the periods indicated:
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
         
    (Dollars in Thousands)     (Dollars in Thousands)  
NET INCOME AVAILABLE TO COMMON SHAREHOLDERS
  $ 11,959     $ 11,145     $ 34,267     $ 28,402  
         
                                 
    Weighted Average Shares     Weighted Average Shares  
BASIC SHARES
    21,463,714       20,981,372 (1)     21,401,885       20,961,378 (1)
Effect of Dilutive Securities
    13,077       52,793       32,452       74,536  
         
DILUTIVE SHARES
    21,476,791       21,034,165       21,434,337       21,035,914  
         
 
                               
NET INCOME AVAILABLE TO COMMON SHAREHOLDERS PER SHARE
                               
BASIC EPS
  $ 0.56     $ 0.53     $ 1.60     $ 1.35  
Effect of Dilutive Securities
                       
         
DILUTIVE EPS
  $ 0.56     $ 0.53     $ 1.60     $ 1.35  
         
 
     
(1)   Unvested restricted stock awards were not considered outstanding in the computation of basic earnings per share due to the immaterial balance for the three and nine months ended September 30, 2010.
     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,  
    2011     2010     2011     2010  
     
Stock Options
    888,963       1,007,005       820,871       797,564