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Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2012
Earnings Per Share [Abstract] |
Summary Of Computation Of Basic And Diluted Earnings Per Common Share | The following table sets forth the computation of basic and diluted earnings per common share for the three and six months ended June 30, 2012 and 2011.
(in thousands, except share and per share data) |  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2012 |  | 2011 |  | 2012 |  | 2011
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Income available to common shareholders |  | $ | 16,938 |  |  | $ | 27,489 |  |  | $ | 46,936 |  |  | $ | 48,221 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share (weighted average common shares outstanding) |  | 15,405,902 |  |  | 15,398,919 |  |  | 15,405,906 |  |  | 15,398,925 |
Effect of dilutive options and warrants |  | — |  |  | 674 |  |  | 3,784 |  |  | 2,581 |
Denominator for diluted earnings per share (weighted average common shares outstanding adjusted for the effect of dilutive options and warrants) |  | 15,405,902 |  |  | 15,399,593 |  |  | 15,409,690 |  |  | 15,401,506 |
Earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per common share |  | $ | 1.10 |  |  | $ | 1.79 |  |  | $ | 3.05 |  |  | $ | 3.13 |
Diluted earnings per common share |  | $ | 1.10 |  |  | $ | 1.79 |  |  | $ | 3.05 |  |  | $ | 3.13 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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