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Earnings Per Share
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
Earnings Per Share
9. Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per common share.
                                 
    Three Months Ended September 30,     Nine Months Ended September 30,  
    2011     2010     2011     2010  
    (In thousands, except per share amounts)  
Basic EPS
                               
Net income
  $ 13,444     $ 8,611     $ 36,161     $ 22,481  
Amount allocable to common shareholders
    100.0 %     90.4 %     100.0 %     90.5 %
 
                       
Net income applicable to common stock
  $ 13,444     $ 7,784     $ 36,161     $ 20,351  
 
                               
Common stock — voting
    34,540       30,359       34,212       30,848  
Common stock — non-voting
    2,586       2,586       2,586       2,586  
 
                       
Basic weighted average shares outstanding
    37,126       32,945       36,798       33,434  
 
                       
Basic earnings per share
  $ 0.36     $ 0.24     $ 0.98     $ 0.61  
 
                       
 
                               
Diluted EPS
                               
Net income
  $ 13,444     $ 8,611     $ 36,161     $ 22,481  
 
                               
Basic weighted average shares outstanding
    37,126       32,945       36,798       33,434  
Effect of dilutive shares:
                               
Series B Preferred Stock
          3,500             3,500  
Stock options, restricted stock and warrants
    2,702       2,299       2,741       2,254  
 
                       
Diluted weighted average shares outstanding
    39,828       38,744       39,539       39,188  
 
                       
Diluted earnings per share
  $ 0.34     $ 0.22     $ 0.91     $ 0.57  
 
                       
Stock options, restricted stock and warrants totaling 0.2 million shares and 0.6 million shares for the three months ended September 30, 2011 and 2010, respectively, and 0.3 million shares and 0.6 million shares for the nine months ended September 30, 2011 and 2010, respectively, were excluded from the computation of diluted earnings per share because their effect would have been antidilutive. The computation of diluted shares can vary among periods due, in part, to the change in the average price of the Company’s common stock.