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Lease Commitments - Schedule of Supplemental Cash Flows Related to Leases (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ 21,685 | $ 25,984
Operating cash flows from financing leases | 256 | 141
Financing cash flows from financing leases | 2,527 | 1,711
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 138,210 | 3,103
Financing leases | 11,828 | 8,266
PNM |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 21,575 | 25,687
Operating cash flows from financing leases | 183 | 96
Financing cash flows from financing leases | 1,671 | 1,123
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 138,204 | 2,924
Financing leases | 6,421 | 4,205
TNMP |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 110 | 246
Operating cash flows from financing leases | 73 | 43
Financing cash flows from financing leases | 802 | 499
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 6 | 179
Financing leases | $ 5,407 | $ 4,061

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