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Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2011
Earnings Per Common Share [Abstract] |
Summary Of Computation Of Basic And Diluted Earnings Per Common Share |
(in thousands, except share and per share data) |  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Numerator: |  | Restated |  |  |  |  |  | Restated |  |  |  |
Income available to common shareholders |  | $ | 18,917 |  |  | $ | 18,125 |  |  | $ | 67,138 |  |  | $ | 57,167 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share (weighted average common shares outstanding) |  |  | 15,398,909 |  |  |  | 15,272,720 |  |  |  | 15,398,919 |  |  |  | 15,090,113 |
Effect of dilutive options and warrants |  |  | - |  |  |  | - |  |  |  | 1,722 |  |  |  | - |
Denominator for diluted earnings per share (weighted average common shares outstanding adjusted for the effect of dilutive options and warrants) |  |  | 15,398,909 |  |  |  | 15,272,720 |  |  |  | 15,400,641 |  |  |  | 15,090,113 |
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per common share |  | $ | 1.23 |  |  | $ | 1.19 |  |  | $ | 4.36 |  |  | $ | 3.79 |
Diluted earnings per common share |  | $ | 1.23 |  |  | $ | 1.19 |  |  | $ | 4.36 |  |  | $ | 3.79 |

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