Lease Commitments - Schedule of Supplemental Cash Flows Related to Leases (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 22,725	$ 16,758
Operating cash flows from financing leases	379	235
Finance cash flows from financing leases	2,296	2,174
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	57,930	743
Financing leases	16,345	5,355
PNM
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	22,633	16,694
Operating cash flows from financing leases	196	143
Finance cash flows from financing leases	1,319	1,305
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	57,920	75
Financing leases	5,562	1,735
TNMP
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	43	36
Operating cash flows from financing leases	141	75
Finance cash flows from financing leases	722	759
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:
Operating leases	9	100
Financing leases	$ 10,521	$ 2,661

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Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract]

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Amount of interest paid on finance lease liability.

+ References

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-Section 50
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Amount of cash outflow for principal payment on finance lease.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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