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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Earnings Per Share [Abstract] |
Calculation of our Basic and Diluted Earnings per share Calculation | The following table shows the information used in the calculation of our basic and diluted earnings per share calculation for the three and six months ended June 30, 2020 and June 30, 2019:
| For the Three Months Ended June 30, |  |  |  | For the Six Months Ended June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Weighted average common shares outstanding for basic calculation | 267,249,580 |  |  | 290,565,408 |  |  | 268,233,233 |  |  | 290,562,234 |
Add: Effect of stock options, deferred share units and restricted stock units | 10,815 |  |  | 8,745 |  |  | 10,764 |  |  | 8,898 |
Weighted average common shares outstanding for diluted calculation | 267,260,395 |  |  | 290,574,153 |  |  | 268,243,997 |  |  | 290,571,132 |

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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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