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v3.25.2

Related Party Transactions (Tables) | 6 Months Ended
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Jun. 30, 2025
Related Party Transactions [Abstract] |
Schedule of Related Party Transactions | The table below summarizes the nature and amount of related party transactions of TXNM, PNM, TNMP, and NMRD:
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (In thousands)
Services billings: |  |  |  |  |  |  |
TXNM to PNM | $ | 35,317 |  |  | $ | 31,023 |  |  | $ | 67,404 |  |  | $ | 66,430 |
TXNM to TNMP | 14,109 |  |  | 12,885 |  |  | 27,485 |  |  | 27,121 |
PNM to TNMP | 86 |  |  | 109 |  |  | 165 |  |  | 190 |
TNMP to TXNM | 28 |  |  | — |  |  | 56 |  |  | 10 |
TXNM to NMRD | — |  |  | — |  |  | — |  |  | 66 |
Renewable energy purchases: |  |  |  |  |  |  |
PNM from NMRD | — |  |  | — |  |  | — |  |  | 1,523 |
Interest billings: |  |  |  |  |  |  |
TXNM to PNM | 76 |  |  | 25 |  |  | 84 |  |  | 39 |
PNM to TXNM | 132 |  |  | 154 |  |  | 265 |  |  | 309 |
TXNM to TNMP | 41 |  |  | 22 |  |  | 186 |  |  | 179 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 + Details
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