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Earnings and Dividends Per Share (Tables) | 12 Months Ended
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Dec. 31, 2024
Earnings Per Share [Abstract] |
Schedule of 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,
| 2024 |  | 2023 |  | 2022
| (In thousands, except per share amounts)
Net Earnings Attributable to TXNM | $ | 242,154 |  |  | $ | 87,818 |  |  | $ | 169,530 |
Average Number of Common Shares: |  |  |  |  |
Outstanding during year | 90,214 |  |  | 86,038 |  |  | 85,835 |
Vested awards of restricted stock | 320 |  |  | 258 |  |  | 287 |
Average Shares – Basic | 90,534 |  |  | 86,296 |  |  | 86,122 |
Dilutive Effect of Common Stock Equivalents: |  |  |  |  |
TXNM ATM Programs | 12 |  |  | 38 |  |  | — |
Restricted stock | 45 |  |  | 35 |  |  | 47 |
Average Shares – Diluted | 90,591 |  |  | 86,369 |  |  | 86,169 |
Net Earnings Attributable to TXNM Per Share of Common Stock: |  |  |  |  |
Basic | $ | 2.67 |  |  | $ | 1.02 |  |  | $ | 1.97 |
Diluted | $ | 2.67 |  |  | $ | 1.02 |  |  | $ | 1.97 |
Dividends Declared per Common Share | $ | 1.57 |  |  | $ | 1.49 |  |  | $ | 1.41 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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