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Equity Method Investment - Narrative (Details) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2021 USD ($) | Dec. 31, 2021 USD ($) MW | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Business Acquisition [Line Items] |  |  |  |
Distributions from NMRD | $ |  | $ 572 | $ 0 | $ 0
PNMR Development | NMRD |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Distributions from NMRD | $ | $ 3,000 |  |  |
Equity in earnings | $ |  | 2,400 |  |
Dividend in excess of equity earnings | $ |  | $ 600 |  |
NMRD |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Renewable energy capacity in operating (in mw) | MW |  | 135.1 |  |
Megawatts supplying energy to data center (in mw) | MW |  | 130 |  |
Megawatts supplying energy to cooperative (in mw) | MW |  | 1.9 |  |
Megawatts supplying energy to power city (in mw) | MW |  | 1.2 |  |
NMRD | PNMR Development |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership percentage |  | 50.00% |  |
Contribution to construction activities | $ |  | $ 0 | $ 23,300 | $ 38,300
NMRD | Central New Mexico Electric Cooperative |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Megawatts supplying energy to cooperative (in mw) | MW |  | 2.0 |  |

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