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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
Calculation of basic and diluted earnings per share |
|  | For the Year Ended December 31, |
| 2012 |  |  | 2011 |  |  | 2010 |
|  |  |  |  | (As Adjusted) |  |  | (As Adjusted) |
|  | (In thousands, except earnings per share amounts) |
Basic EPS: |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders |  | $ | 29,353 |  |  | $ | 24,181 |  |  | $ | 34,520 |
Weighted-average common shares outstanding |  |  | 18,166 |  |  |  | 18,250 |  |  |  | 18,637 |
Basic earnings per share |  | $ | 1.62 |  |  | $ | 1.32 |  |  | $ | 1.85 |
Diluted EPS: |  |  |  |  |  |  |  |  |  |  |  |
Income allocable to common shareholders |  | $ | 29,353 |  |  | $ | 24,181 |  |  | $ | 34,520 |
Weighted average common shares outstanding |  |  | 18,166 |  |  |  | 18,250 |  |  |  | 18,637 |
Diluted effect: |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | 391 |  |  |  | 440 |  |  |  | 449 |
Restricted stock |  |  | 12 |  |  |  | 11 |  |  |  | 9 |
Long-term incentive awards |  |  | 6 |  |  |  | — |  |  |  | — |
Weighted average diluted shares outstanding |  |  | 18,575 |  |  |  | 18,701 |  |  |  | 19,095 |
Diluted earnings per share |  | $ | 1.58 |  |  | $ | 1.29 |  |  | $ | 1.81 |
Calculation of percentage of net income allocable to common shareholders |
|  | Years Ended |
| 2012 |  |  | 2011 |  |  | 2010 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 18,166,175 |  |  |  | 18,250,173 |  |  |  | 18,637,167 |
Add: Other common shares eligible for common dividends: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average restricted shares and stock options (including tax benefit component) |  |  | 408,958 |  |  |  | 450,809 |  |  |  | 458,153 |
Weighted average participating common shares |  |  | 18,575,133 |  |  |  | 18,700,982 |  |  |  | 19,095,320 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average participating shares |  |  | 18,575,133 |  |  |  | 18,700,982 |  |  |  | 19,095,320 |

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- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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