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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Reconciliation of the component parts of earnings per share
A reconciliation of the component parts of earnings per share for 2012, 2011 and 2010 follows:
 
(dollars in thousands, except per share data)
      
       
   
2012
  
2011
 
For the year ended December 31:
      
Net income
 $37,534  $33,087 
Less: Net income allocated to participating securities
  43   5 
Net income allocated to common shareholders
 $37,491  $33,082 
Basic EPS:
        
Distributed earnings allocated to common stock
 $24,607  $22,389 
Undistributed earnings allocated to common stock
  12,884   10,693 
Net income allocated to common shareholders
 $37,491  $33,082 
Weighted average common shares outstanding including participating securities
  93,739   85,086 
Less: Participating securities
  106   14 
Weighted average common shares
  93,633   85,072 
          
Basic EPS
  0.400   0.389 
          
Diluted EPS:
        
Net income allocated to common shareholders
 $37,491  $33,082 
Weighted average common shares for basic EPS
  93,633   85,072 
Effect of Dilutive Securities:
        
Stock Options
  4   - 
Weighted average common shares including potential dilutive shares
  93,637   85,072 
          
Diluted EPS
  0.400   0.389 
 
 
      
Weighted
    
      
Average Shares
  
Per Share
 
   
Income
  
Outstanding
  
Amounts
 
For the year ended December 31, 2010:
         
Basic EPS:
         
Income available to common shareholders
 $29,321   76,935  $0.381 
Effect of Dilutive Securities:
            
Stock Options
  -   -   - 
Diluted EPS
 $29,321   76,935  $0.381