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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Schedule of earnings per share | Net income for basic and diluted calculations do not differ.
| Three Months Ended June 30, |  | Six Months Ended June 30,
(In thousands, except per share) | 2018 |  | 2017 |  | 2018 |  | 2017
Net Income | $ | 18,771 |  | $ | 12,316 |  | $ | 33,354 |  | $ | 24,483
Average Common Shares: |  |  |  |  |  |  |
Basic (weighted-average outstanding shares) | 11,652 |  | 11,547 |  | 11,629 |  | 11,509
Dilutive potential common shares from stock options | 107 |  | 124 |  | 120 |  | 137
Diluted (weighted-average outstanding shares) | 11,759 |  | 11,671 |  | 11,749 |  | 11,646
Basic earnings per share | $ | 1.61 |  | $ | 1.07 |  | $ | 2.87 |  | $ | 2.13
Diluted earnings per share | $ | 1.60 |  | $ | 1.05 |  | $ | 2.84 |  | $ | 2.10

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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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