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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | Information regarding the computation of earnings per share is as follows:
| Three Months Ended
| March 31,
| 2014 |  | 2013
| (In thousands, except per share amounts)
Net Earnings Attributable to PNMR | $ | 12,468 |  |  | $ | 10,626 |
Average Number of Common Shares: |  |  |
Outstanding during period | 79,654 |  |  | 79,654 |
Vested awards of restricted stock | 182 |  |  | 211 |
Average Shares - Basic | 79,836 |  |  | 79,865 |
Dilutive Effect of Common Stock Equivalents (1): |  |  |
Stock options and restricted stock | 551 |  |  | 715 |
Average Shares - Diluted | 80,387 |  |  | 80,580 |
Net Earnings Per Share of Common Stock: |  |  |
Basic | $ | 0.16 |  |  | $ | 0.13 |
Diluted | $ | 0.16 |  |  | $ | 0.13 |
(1) | Excludes the effect of out-of-the-money options for 486,016 shares of common stock at March 31, 2014.

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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/2003/role/presentationRef -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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