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v3.24.3

Segment Information - Schedule of Gross Margin (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Segment Reporting Information [Line Items] |  |  |  |
Gross margin | $ 297,272 | $ 177,178 | $ 671,698 | $ 545,516
Transmission and distribution costs | 23,660 | 25,078 | 71,475 | 72,739
Depreciation and amortization | 88,156 | 72,894 | 257,088 | 216,033
Utility margin | 430,347 | 295,538 | 1,068,316 | 902,633
Energy Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Energy production costs | 21,259 | 20,388 | 68,055 | 68,345
PNM |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross margin | 212,218 | 95,721 | 457,807 | 356,317
Transmission and distribution costs | 15,123 | 15,326 | 44,823 | 43,968
Depreciation and amortization | 56,424 | 44,537 | 163,941 | 132,287
Utility margin | 305,024 | 175,972 | 734,626 | 600,917
PNM | Energy Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Energy production costs | 21,259 | 20,388 | 68,055 | 68,345
TNMP |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross margin | 85,054 | 81,457 | 213,891 | 189,199
Transmission and distribution costs | 8,537 | 9,752 | 26,652 | 28,771
Depreciation and amortization | 31,732 | 28,357 | 93,147 | 83,746
Utility margin | 125,323 | 119,566 | 333,690 | 301,716
TNMP | Energy Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Energy production costs | 0 | 0 | 0 | 0
Corporate and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gross margin | 0 | 0 | 0 | 0
Transmission and distribution costs | 0 | 0 | 0 | 0
Depreciation and amortization | 0 | 0 | 0 | 0
Utility margin | 0 | 0 | 0 | 0
Corporate and Other | Energy Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Energy production costs | $ 0 | $ 0 | $ 0 | $ 0

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