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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
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) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 11,599 |  |  | $ | 11,541 |  |  | $ | 27,413 |  |  | $ | 22,818 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares |  |  | 17,687 |  |  |  | 17,626 |  |  |  | 17,679 |  |  |  | 17,621 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive stock options and restricted stock grants |  |  | 16 |  |  |  | 19 |  |  |  | 16 |  |  |  | 20 |
Adjusted weighted average shares |  |  | 17,703 |  |  |  | 17,645 |  |  |  | 17,695 |  |  |  | 17,641 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 0.66 |  |  | $ | 0.65 |  |  | $ | 1.55 |  |  | $ | 1.29 |
Diluted earnings per share |  |  | 0.66 |  |  |  | 0.65 |  |  |  | 1.55 |  |  |  | 1.29 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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