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v3.22.4

Segment Information - Schedule of Gross Margin (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Gross margin | $ 740,455 | $ 648,949 | $ 606,727
Transmission and distribution costs | 94,684 | 81,335 | 77,943
Depreciation and amortization | 279,128 | 260,805 | 253,124
Utility margin | 1,261,614 | 1,135,020 | 1,075,771
Electricity, Generation |  |  |
Segment Reporting Information [Line Items] |  |  |
Energy production costs | 147,347 | 143,931 | 137,977
Public Service Company of New Mexico |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross margin | 516,375 | 466,092 | 441,831
Transmission and distribution costs | 58,278 | 49,846 | 49,534
Depreciation and amortization | 180,812 | 170,365 | 165,325
Utility margin | 902,812 | 830,234 | 794,667
Public Service Company of New Mexico | Electricity, Generation |  |  |
Segment Reporting Information [Line Items] |  |  |
Energy production costs | 147,347 | 143,931 | 137,977
Texas-New Mexico Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross margin | 224,080 | 182,857 | 164,896
Transmission and distribution costs | 36,406 | 31,489 | 28,409
Depreciation and amortization | 98,316 | 90,440 | 87,799
Utility margin | 358,802 | 304,786 | 281,104
Texas-New Mexico Power Company | Electricity, Generation |  |  |
Segment Reporting Information [Line Items] |  |  |
Energy production costs | 0 | 0 | 0
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross margin | 0 | 0 | 0
Transmission and distribution costs | 0 | 0 | 0
Depreciation and amortization | 0 | 0 | 0
Utility margin | 0 | 0 | 0
Corporate and Other | Electricity, Generation |  |  |
Segment Reporting Information [Line Items] |  |  |
Energy production costs | $ 0 | $ 0 | $ 0

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