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Earnings per share (Tables) | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Weighted average common shares outstanding | A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculations follows:
| Three Months Ended |
| March 31, |
| 2021 | 2020 |  |
| (In thousands, except per share amounts)
Weighted average common shares outstanding - basic | 200,708 |  | 200,440 |  |  |
Effect of dilutive performance share awards and restricted stock units | 244 |  | 16 |  |  |
Weighted average common shares outstanding - diluted | 200,952 |  | 200,456 |  |  |
Shares excluded from the calculation of diluted earnings per share | — |  | 68 |  |  |
Dividends declared per common share | $ | .2125 |  | $ | .2075 |  |  |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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