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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2017
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings per Share | ears ended December 31 (in thousands):
| 2017 |  | 2016 |  | 2015
Numerator: |  |  |  |  |
Income from continuing operations | $ | 62,965 |  |  | $ | 33,719 |  |  | $ | 23,476 |
Loss from discontinued operations | (405 | ) |  | (44 | ) |  | (28 | )
Net income available to common shareholders | $ | 62,560 |  |  | $ | 33,675 |  |  | $ | 23,448 |
Denominator for basic earnings per share: |  |  |  |  |
Weighted average shares outstanding | 31,701 |  |  | 31,536 |  |  | 31,233 |
Denominator for diluted earnings per share: |  |  |  |  |
Common stock options and restricted stock | 549 |  |  | 533 |  |  | 312 |
Weighted average shares and conversions | 32,250 |  |  | 32,069 |  |  | 31,545 |

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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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