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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
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:
| Years Ended December 31,
(Dollars and shares in thousands, except per share amounts) | 2019 |  | 2018 |  | 2017
Numerator: |  |  |  |  |
Net income | $ | 47,319 |  |  | $ | 87,651 |  |  | $ | 80,459 |
Denominator: |  |  |  |  |
Weighted average shares outstanding - basic | 18,573 |  |  | 18,374 |  |  | 18,154 |
Effect of dilutive shares | 140 |  |  | 285 |  |  | 393 |
Weighted average shares outstanding - diluted | 18,713 |  |  | 18,659 |  |  | 18,547 |
Basic earnings per share | $ | 2.55 |  |  | $ | 4.77 |  |  | $ | 4.43 |
Diluted earnings per share | $ | 2.53 |  |  | $ | 4.70 |  |  | $ | 4.34 |

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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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