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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Summary of Earnings Per Share |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
|  | (in thousands, except share and per share amounts) |
Basic EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income, as reported |  | $ | 7,644 |  |  | $ | 3,445 |  |  | $ | 16,495 |  |  | $ | 13,006 |
Less allocated income to unvested shares |  |  | 26 |  |  |  | 2 |  |  |  | 41 |  |  |  | 5 |
Net income available to common shareholders—basic |  | $ | 7,618 |  |  | $ | 3,443 |  |  | $ | 16,454 |  |  | $ | 13,001 |
Basic weighted average common shares |  |  | 18,353,174 |  |  |  | 18,150,306 |  |  |  | 18,317,452 |  |  |  | 18,145,525 |
Basic earnings per common share |  | $ | 0.42 |  |  | $ | 0.19 |  |  | $ | 0.90 |  |  | $ | 0.72 |
Diluted EPS: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income available to common shareholders—diluted |  | $ | 7,619 |  |  | $ | 3,443 |  |  | $ | 16,455 |  |  | $ | 13,002 |
Diluted weighted average common shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares |  |  | 18,353,174 |  |  |  | 18,150,306 |  |  |  | 18,317,452 |  |  |  | 18,145,525 |
Stock options and performance shares |  |  | 359,125 |  |  |  | 438,189 |  |  |  | 396,324 |  |  |  | 440,631 |
Diluted weighted average common shares |  |  | 18,712,299 |  |  |  | 18,588,495 |  |  |  | 18,713,776 |  |  |  | 18,586,156 |
Diluted earnings per common share |  | $ | 0.41 |  |  | $ | 0.19 |  |  | $ | 0.88 |  |  | $ | 0.70 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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