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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Computation of basic and diluted earnings per share | The following table sets forth the computation of basic and diluted earnings per share:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30 |  |  | June 30 |
(in thousands except per share data) |  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 11,942 |  |  | $ | 12,232 |  |  | $ | 23,762 |  |  | $ | 24,101 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares |  |  | 15,565 |  |  |  | 15,451 |  |  |  | 15,552 |  |  |  | 15,429 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive stock options |  |  | 76 |  |  |  | 50 |  |  |  | 73 |  |  |  | 46 |
Adjusted weighted average shares |  |  | 15,641 |  |  |  | 15,501 |  |  |  | 15,625 |  |  |  | 15,475 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 0.77 |  |  | $ | 0.79 |  |  | $ | 1.53 |  |  | $ | 1.56 |
Diluted earnings per share |  |  | 0.76 |  |  |  | 0.79 |  |  |  | 1.52 |  |  |  | 1.56 |

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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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