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Stock-Based Compensation - Excess Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Public Service Company of New Mexico |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Excess tax benefits | $ (65) | $ 564 | $ 279
Texas-New Mexico Power Company |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Excess tax benefits | (26) | 224 | 112
PNMR |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Excess tax benefits | $ (91) | $ 788 | $ 391

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- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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