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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Earnings per Share | Basic earnings and diluted weighted-average shares outstanding are as follows for the years ended December 31 (in thousands):
| 2019 |  | 2018 |  | 2017
Numerator: |  |  |  |  |
Income from continuing operations | $ | 65,091 |  |  | $ | 63,809 |  |  | $ | 62,965 |
Loss from discontinued operations | — |  |  | — |  |  | (405 | )
Net income available to common shareholders | $ | 65,091 |  |  | $ | 63,809 |  |  | $ | 62,560 |
Denominator for basic earnings per share: |  |  |  |  |
Weighted average shares outstanding | 32,389 |  |  | 31,979 |  |  | 31,701 |
Denominator for diluted earnings per share: |  |  |  |  |
Common stock options and stock units | 333 |  |  | 555 |  |  | 549 |
Weighted average shares and conversions | 32,722 |  |  | 32,534 |  |  | 32,250 |

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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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