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Earnings and Dividends Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Computation of Earnings per Share and Dividends per Share | Information regarding the computation of earnings per share and dividends per share is as follows:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
| (In thousands, except per share amounts)
Net Earnings Attributable to PNMR | $ | 172,775 |  |  | $ | 77,362 |  |  | $ | 85,642 |
Average Number of Common Shares: |  |  |  |  |
Outstanding during year | 79,941 |  |  | 79,654 |  |  | 79,654 |
Vested awards of restricted stock | 216 |  |  | 277 |  |  | 236 |
Average Shares – Basic | 80,157 |  |  | 79,931 |  |  | 79,890 |
Dilutive Effect of Common Stock Equivalents: |  |  |  |  |
PNMR 2020 Forward Equity Sale Agreements | 106 |  |  | — |  |  | — |
Stock options and restricted stock | 40 |  |  | 59 |  |  | 122 |
Average Shares – Diluted | 80,303 |  |  | 79,990 |  |  | 80,012 |
Net Earnings Attributable to PNMR Per Share of Common Stock: |  |  |  |  |
Basic | $ | 2.16 |  |  | $ | 0.97 |  |  | $ | 1.07 |
Diluted | $ | 2.15 |  |  | $ | 0.97 |  |  | $ | 1.07 |
Dividends Declared per Common Share | $ | 1.2500 |  |  | $ | 1.1775 |  |  | $ | 1.0850 |

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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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