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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings per Share | The computations of Basic and Diluted Earnings per Share were as follows:
| Three Months Ended |  | Six Months Ended
| June 30 |  | June 30
| 2014 |  | 2013 |  | 2014 |  | 2013
Numerator: |  |  |  |  |  |  |
Net Earnings | $ | 15,523 |  |  | $ | 14,254 |  |  | $ | 21,318 |  |  | $ | 19,313 |
Denominator: |  |  |  |  |  |  |
Basic - Weighted Average Shares Outstanding | 18,167,054 |  |  | 18,253,326 |  |  | 18,242,240 |  |  | 18,298,379 |
Effect of dilutive securities: |  |  |  |  |  |  |
Share-based compensation plans | 508,553 |  |  | 534,554 |  |  | 534,129 |  |  | 537,163 |
Diluted - Weighted Average Shares Outstanding | 18,675,607 |  |  | 18,787,880 |  |  | 18,776,369 |  |  | 18,835,542 |
Basic Earnings per Share | $ | 0.85 |  |  | $ | 0.78 |  |  | $ | 1.17 |  |  | $ | 1.06 |
Diluted Earnings per Share | $ | 0.83 |  |  | $ | 0.76 |  |  | $ | 1.14 |  |  | $ | 1.03 |

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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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