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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Reconciliation of Number of Shares Used in Calculating Basic and Diluted Earnings per Share | The following table reconciles the number of shares used in calculating basic and diluted earnings per share for the years ended December 31:
(in thousands) |  | 2020 |  |  | 2019 |  |  | 2018 |
Basic weighted-average shares outstanding |  |  | 67,237 |  |  |  | 67,608 |  |  |  | 60,534 |
Incremental shares due to: |  |  |  |  |  |  |  |  |  |  |  |
Performance shares |  |  | 289 |  |  |  | 109 |  |  |  | 230 |
Restricted stock units |  |  | 42 |  |  |  | 26 |  |  |  | 34 |
Stock portion of earnings and profits distribution |  |  | — |  |  |  | — |  |  |  | 1,016 |
Diluted weighted-average shares outstanding |  |  | 67,568 |  |  |  | 67,743 |  |  |  | 61,814 |

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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