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v3.25.1

Financing - Financing Activities (Details) |  | 1 Months Ended | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 31, 2025 | Jul. 31, 2024 USD ($) | Mar. 31, 2025 | Apr. 23, 2025 USD ($) debtInstrument | Feb. 14, 2025 USD ($) | Jan. 21, 2025 USD ($) | Jul. 01, 2024 USD ($) | Mar. 28, 2024 USD ($) debtInstrument
Public Service Company of New Mexico |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Maturity term over which financings require regulator approval (more than) |  |  | 18 months |  |  |  |  |
Texas-New Mexico Power Company | FMB Notes Due July 2024 | Senior Unsecured Noted, Pollution Control Revenue Bonds |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  | 4.03% |  |  |  |  |  |
Repayments of unsecured debt |  | $ 80,000,000 |  |  |  |  |  |
Line of credit |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Ratio of debt to capital (less than or equal to) |  |  | 70.00% |  |  |  |  |
Line of credit | PNM and TNMP |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Ratio of debt to capital (less than or equal to) |  |  | 65.00% |  |  |  |  |
Unsecured Debt | Public Service Company of New Mexico | PNM 2025 Note Purchase Agreement | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 300,000,000 |  |  |  |
Number of debt issuances | debtInstrument |  |  |  | 2 |  |  |  |
Unsecured Debt | Public Service Company of New Mexico | PNM 2025 Bond At Five Point Seven Five, Due June Twenty Thirty Two | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 125,000,000 |  |  |  |
Stated interest rate |  |  |  | 5.75% |  |  |  |
Unsecured Debt | Public Service Company of New Mexico | PNM 2025 Bond At Six Point One Three, Due June Twenty Thirty Seven | Subsequent Event |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 175,000,000 |  |  |  |
Stated interest rate |  |  |  | 6.13% |  |  |  |
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2025 Bond At Five Point One Nine Percent |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  | $ 140,000,000 |  |  |
Stated interest rate |  |  |  |  | 5.19% |  |  |
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2024 Bond Purchase Agreement |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  | $ 285,000,000
Number of debt issuances | debtInstrument |  |  |  |  |  |  |  | 4
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2024 Bond, 5.26%, Due March 28, 2029 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  | $ 32,000,000
Number of debt issuances | debtInstrument |  |  |  |  |  |  |  | 2
Stated interest rate |  |  |  |  |  |  |  | 5.26%
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2024 Bond, 5.55%, Due March 28, 2036 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  | $ 85,000,000
Stated interest rate |  |  |  |  |  |  |  | 5.55%
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2024 Bond, 5.65% |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 40,000,000 |
Stated interest rate |  |  |  |  |  |  | 5.65% |
Unsecured Debt | Texas-New Mexico Power Company | TNMP 2024 Bond, 5.79% |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 128,000,000 |
Stated interest rate |  |  |  |  |  |  | 5.79% |
Notes Payable to Banks | Public Service Company of New Mexico | PNM 2025 75 Million Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  | $ 195,000,000 |  |
Stated interest rate |  |  | 5.32% |  |  |  |  |
Bonds | TXNM 2021 Delayed Draw Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Variable interest rate |  |  | 5.37% |  |  |  |  |
Bonds | TXNM 2023 Delayed-Draw Term Loan |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Variable interest rate |  |  | 5.77% |  |  |  |  |
Bonds | PNM 2024 Term Loan, Due November 2025 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Variable interest rate |  |  | 5.32% |  |  |  |  |
Bonds | PNM 2025 Term Loan, Due July Twenty Twenty Six |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Variable interest rate |  |  | 5.32% |  |  |  |  |
Convertible Debt | Convertible Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Conversion ratio | 0.0225005 |  |  |  |  |  |  |

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