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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2018
Earnings Per Share [Abstract] |
Schedule of reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share | The following table presents a reconciliation of the number of shares used in the calculation of basic and diluted earnings per common share.
|  | Three Months Ended March 31,
(Dollars in thousands - except per share amounts) |  | 2018 |  | 2017
Distributed earnings allocated to common stock |  | $ | 5,704 |  |  | $ | 4,663 |
Undistributed earnings allocated to common stock |  | 13,278 |  |  | 11,422 |
Net earnings allocated to common stock |  | 18,982 |  |  | 16,085 |
Net earnings allocated to participating securities |  | 134 |  |  | 121 |
Net income allocated to common stock and participating securities |  | $ | 19,116 |  |  | $ | 16,206 |
Weighted average shares outstanding for basic earnings per common share |  | 25,950,386 |  |  | 25,903,397 |
Dilutive effect of stock compensation |  | — |  |  | — |
Weighted average shares outstanding for diluted earnings per common share |  | 25,950,386 |  |  | 25,903,397 |
Basic earnings per common share |  | $ | 0.73 |  |  | $ | 0.62 |
Diluted earnings per common share |  | $ | 0.73 |  |  | $ | 0.62 |

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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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