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v3.24.1.u1

Financing - Financing Activities (Details) |  | 1 Months Ended | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 10, 2022 USD ($) | Jul. 31, 2024 USD ($) | Mar. 31, 2024 shares | Jul. 01, 2024 USD ($) | Mar. 28, 2024 USD ($) debtInstrument | May 16, 2023 USD ($) | Apr. 28, 2023 USD ($) bond debtInstrument
Debt Instrument [Line Items] |  |  |  |  |  |  |
Forward sale agreement (in shares) | shares |  |  | 4,365,510 |  |  |  |
At-The-Market |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Distribution agreement | $ 200,000,000 |  |  |  |  |  |
PNM |  |  |  |  |  |  |
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 | Forecast | Senior Unsecured Noted, Pollution Control Revenue Bonds |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
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 | PNM, Due May 2026 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  | $ 650,000,000 |
Unsecured Debt | PNM | PNM 2023 Note Purchase Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 200,000,000
Number of debt issuances | debtInstrument |  |  |  |  |  |  | 2
Unsecured Debt | PNM | PNM 2023 SUNs At 5.1%, Due April 28, 2035 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 150,000,000
Stated interest rate |  |  |  |  |  |  | 5.51%
Unsecured Debt | PNM | PNM 2023 SUNs At 5.92%, Due April 28, 2053 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 50,000,000
Stated interest rate |  |  |  |  |  |  | 5.92%
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 |  |
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% | Forecast |  |  |  |  |  |  |
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% | Forecast |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  | $ 128,000,000 |  |  |
Stated interest rate |  |  |  | 5.79% |  |  |
Secured Debt | PNM | TNMP 2023 Bond Purchase Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, series of bond issuance | bond |  |  |  |  |  |  | 2
Secured Debt | Texas-New Mexico Power Company | TNMP 2023 Bond Purchase Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 185,000,000
Secured Debt | Texas-New Mexico Power Company | TNMP 2023 Bond Purchase Agreement At 5.01%, Due April 28, 2033 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 130,000,000.0
Stated interest rate |  |  |  |  |  |  | 5.01%
Secured Debt | Texas-New Mexico Power Company | TNMP 2023 Bond Purchase Agreement At 5.47%, Due July 28, 2053 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 55,000,000.0
Stated interest rate |  |  |  |  |  |  | 5.47%
Bonds | PNMR 2021 Delayed-Draw Term Loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable interest rate |  |  | 6.38% |  |  |  |
Bonds | PNMR 2023 Delayed-Draw Term Loan |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable interest rate |  |  | 6.78% |  |  |  |

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