v3.26.3
Lease Commitments - Schedule of Supplemental Cash Flows Related to Leases (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases $ 8,837 $ 22,725
Operating cash flows from financing leases 432 379
Finance cash flows from financing leases 2,808 2,296
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:    
Operating leases additions 331 57,930
Operating leases retirements (57,228) (393)
Financing leases 14,347 16,345
PNM    
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 8,719 22,633
Operating cash flows from financing leases 214 196
Finance cash flows from financing leases 1,470 1,319
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:    
Operating leases additions 0 57,920
Operating leases retirements (57,228) (367)
Financing leases 3,133 5,562
TNMP    
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases 66 43
Operating cash flows from financing leases 185 141
Finance cash flows from financing leases 1,046 722
Non-cash information related to right-of-use assets obtained in exchange for lease obligations:    
Operating leases additions 331 9
Operating leases retirements 0 (26)
Financing leases $ 11,145 $ 10,521