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Fair Value of Derivative and Other Financial Instruments - Schedule of Commodity Contract Volume Positions (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 MMBTU | Mar. 31, 2024 MWh | Dec. 31, 2023 MMBTU | Dec. 31, 2023 MWh
Commodity derivatives | Designated as Hedging Instrument | Public Service Company of New Mexico |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Economic Hedges (in mmtbu and mwh) | 0 | (15,360) | 0 | (15,360)

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