Debt Instrument, Covenant, Debt To Capitalization Ratio

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- Definition

Debt Instrument, Series Of Bond Issuance

+ References

No definition available.

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- Definition

Public Utilities, Maturity Term Over Which Financings Require Regulator Approval

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payments on the derivative asset.

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- Definition

The number of derivative instruments of a particular derivative asset or group of derivative assets held by the entity.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Aggregate fair value of all derivative assets designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

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No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Financing - Financing Activities (Details)							3 Months Ended	6 Months Ended
Financing - Financing Activities (Details)	May 20, 2022 USD ($)	May 02, 2022 USD ($) derivative	Jan. 24, 2022 USD ($)	Jul. 14, 2021 USD ($)	Mar. 09, 2021 USD ($)	Dec. 22, 2020 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jul. 29, 2022 USD ($)	Jun. 01, 2022 USD ($)	May 05, 2022	Apr. 27, 2022 USD ($) bond	Jan. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Aug. 16, 2021 USD ($)	May 18, 2021 USD ($)	Mar. 09, 2018 USD ($)
Debt Instrument [Line Items]
Financing capacity													$ 40,000,000
Subsequent event
Debt Instrument [Line Items]
Remaining borrowing capacity									$ 644,100,000
Variable Rate Debt \| Interest rate contract \| Cash Flow Hedge
Debt Instrument [Line Items]
Number of instruments held \| derivative		2
Term of loan	19 months	20 months
Derivative, notional amount	$ 100,000,000
Fixed interest rate	2.52%	2.65%
Derivative instruments in hedges, fair value								$ 2,300,000
Variable Rate Debt, Tranche 1 \| Interest rate contract \| Cash Flow Hedge
Debt Instrument [Line Items]
Derivative asset, notional amount		$ 150,000,000
Variable Rate Debt, Tranche 2 \| Interest rate contract \| Cash Flow Hedge
Debt Instrument [Line Items]
Derivative asset, notional amount		$ 200,000,000
PNMR 2020 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Aggregate principal amount						$ 300,000,000
Proceeds from issuance of debt						$ 80,000,000
Remaining borrowing capacity					$ 220,000,000
PNM
Debt Instrument [Line Items]
Maturity term over which financings require regulator approval (more than)								18 months
PNM \| Subsequent event
Debt Instrument [Line Items]
Remaining borrowing capacity									320,100,000
Texas-New Mexico Power Company \| Subsequent event
Debt Instrument [Line Items]
Remaining borrowing capacity									$ 65,000,000
Line of credit
Debt Instrument [Line Items]
Ratio of debt to capital (less than or equal to)								70.00%
Line of credit \| PNMR 2021 Delayed-Draw Term Loan \| Revolving credit facility
Debt Instrument [Line Items]
Financing capacity																$ 1,000,000,000
Proceeds from long-term lines of credit			$ 100,000,000				$ 900,000,000
Line of credit \| PNM and TNMP
Debt Instrument [Line Items]
Ratio of debt to capital (less than or equal to)								65.00%
Bonds \| PNMR 2021 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Variable interest rate								2.56%
Bonds \| PNM \| PNM 2021 75 Million Term Loan
Debt Instrument [Line Items]
Variable interest rate								2.45%
Bonds \| PNM \| Pollution Control Revenue Bonds
Debt Instrument [Line Items]
Long-term debt										$ 31,500,000				$ 104,500,000
Bonds \| PNM \| Pollution Control Revenue Bonds Due June Twenty Thirty Eight
Debt Instrument [Line Items]
Aggregate principal amount														$ 36,000,000
Stated interest rate														1.05%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June Twenty Forty
Debt Instrument [Line Items]
Aggregate principal amount														$ 37,000,000
Stated interest rate														2.125%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June Twenty Forty, City Of Farmington, NM
Debt Instrument [Line Items]
Aggregate principal amount														$ 11,500,000
Stated interest rate														1.20%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June Twenty Forty Two
Debt Instrument [Line Items]
Aggregate principal amount														$ 20,000,000
Stated interest rate														2.45%
Bonds \| PNM \| Pollution Control Revenue Bonds Due June Twenty Twenty Four
Debt Instrument [Line Items]
Stated interest rate											3.00%
Bonds \| Texas-New Mexico Power Company \| TNMP 2022 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount												$ 160,000,000
Debt instrument, series of bond issuance \| bond												2
Bonds \| Texas-New Mexico Power Company \| TNMP 2022 Bond Purchase Agreement at 4.13% Due May 12, 2022
Debt Instrument [Line Items]
Aggregate principal amount												$ 65,000,000
Stated interest rate												4.13%
Bonds \| Texas-New Mexico Power Company \| TNMP 2022 Bond Purchase Agreement at 3.81% Due July 28, 2032
Debt Instrument [Line Items]
Aggregate principal amount												$ 95,000,000
Stated interest rate												3.81%
Unsecured Debt \| PNMR 2018 SUNS 3.25% due March 2021
Debt Instrument [Line Items]
Aggregate principal amount																	$ 300,000,000
Stated interest rate																	3.25%
Repayments of debt					$ 80,000,000
Mortgage Bonds \| Texas-New Mexico Power Company \| TNMP 2021 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount				$ 65,000,000											$ 65,000,000
Stated interest rate															2.44%
Senior Notes \| PNM \| PNM 2021 Note Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount				160,000,000
Senior Notes \| PNM \| PNM 2021 SUNs At 2.59 Percent Due July 15, 2033
Debt Instrument [Line Items]
Aggregate principal amount				$ 80,000,000
Stated interest rate				2.59%
Senior Notes \| PNM \| PNM 2021 SUNs At 3.14 Percent Due July 15, 2041
Debt Instrument [Line Items]
Aggregate principal amount				$ 80,000,000
Stated interest rate				3.14%
Senior Notes \| PNM \| PNM 2021 SUNs At 5.35 Percent Due October 1, 2021
Debt Instrument [Line Items]
Aggregate principal amount				$ 160,000,000
Stated interest rate				5.35%
Senior Notes \| PNM \| PNM 2019 40 Million Term Loan
Debt Instrument [Line Items]
Repayments of debt				$ 40,000,000
Term loan agreement with banks \| PNM \| PNM 2021 75 Million Term Loan
Debt Instrument [Line Items]
Aggregate principal amount				$ 75,000,000