Debt Instrument, Covenant, Debt To Capitalization Ratio

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- Definition

Debt Instrument, Prepayment Period

+ References

No definition available.

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- Definition

Debt Instrument, Series Of Bond Issuance

+ References

No definition available.

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- Definition

Debt Instrument, Shelf Registration Statement for Unsecured Debt

+ References

No definition available.

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- Definition

Number Of Outstanding PCRB's Subject To Mandatory Tender

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- Definition

Public Utilities, Maturity term over which financings require regulator approval

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- Definition

Term Loan Restatement Committed Amount

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No definition available.

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- Definition

Term Loan Restatement To Provide Additional Funding

+ References

No definition available.

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Percentage of principal amount of debt redeemed.

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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.

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No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

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

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- Definition

Gross amount of debt extinguished.

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No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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The effective interest rate at the end of the reporting period.

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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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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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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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Amount of transactions with related party during the financial reporting period.

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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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Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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Cash received on stock transaction after deduction of issuance costs.

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No definition available.

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Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_ShortTermBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Financing - Financing Activities (Details)																			12 Months Ended
Financing - Financing Activities (Details)	Jan. 24, 2022 USD ($)	Dec. 02, 2021 USD ($)	Jul. 14, 2021 USD ($)	Jun. 18, 2021 USD ($)	May 18, 2021 USD ($)	Mar. 09, 2021 USD ($)	Dec. 22, 2020 USD ($)	Dec. 21, 2020 USD ($)	Dec. 15, 2020 USD ($) $ / shares shares	Jun. 22, 2020 USD ($)	Apr. 30, 2020 USD ($)	Apr. 15, 2020 USD ($)	Jan. 08, 2020 shares	Jan. 07, 2020 $ / shares shares	Jan. 01, 2020 USD ($)	Dec. 18, 2019 USD ($)	Apr. 01, 2019 USD ($)	Dec. 21, 2018	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) bond_series	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) derivative	Feb. 18, 2022 USD ($)	Oct. 01, 2021	Sep. 23, 2021 USD ($)	Aug. 16, 2021 USD ($)	Nov. 25, 2020 USD ($)	Jul. 15, 2020 USD ($)	Jun. 01, 2020 USD ($)	Apr. 24, 2020 USD ($) bond_series	Jul. 01, 2019 USD ($)	Mar. 29, 2019 USD ($)	Feb. 26, 2019 USD ($)	Jan. 18, 2019 USD ($)	Jan. 01, 2019 USD ($)	Dec. 17, 2018 USD ($)	Jul. 25, 2018 USD ($)	Jan. 01, 2018 USD ($)
Debt Instrument [Line Items]
Short-term debt																			$ 62,700,000	$ 32,000,000
Financing capacity																			40,000,000
Interest expenses																			96,877,000	114,392,000	$ 121,016,000
Letters of credit outstanding																			3,400,000
Cash Flow Hedge \| Significant Other Observable Inputs (Level 2)
Debt Instrument [Line Items]
Fair value gain (loss, less than)																				900,000
Interest rate contract
Debt Instrument [Line Items]
Number of derivatives \| derivative																							3
Subsequent Event
Debt Instrument [Line Items]
Short-term debt - affiliate																								$ 0
Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Available borrowing capacity																								799,800,000
PNMR 2020 Forward Equity Sales Agreement
Debt Instrument [Line Items]
Common stock, shares issued (in shares) \| shares														6,200,000
Number of shares issued in transaction (in shares) \| shares									6,200,000
Sale of stock, price per share (in dollars per share) \| $ / shares									$ 45.805					$ 47.21
Sale of stock, consideration received on transaction									$ 283,100,000
Payments of stock issuance costs									$ 100,000
Over-Allotment Option
Debt Instrument [Line Items]
Number of shares issued in transaction (in shares) \| shares													800,000	800,000
PNMR 2018 Two-Year Term Loan due December 2020
Debt Instrument [Line Items]
Aggregate principal amount																					50,000,000
Debt instrument, term								2 years										2 years
PNMR 2020 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Term loans							$ 300,000,000
Available borrowing capacity						$ 220,000,000
Proceeds from Long-term Lines of Credit							80,000,000
PNMR 2020 Term Loan
Debt Instrument [Line Items]
Term loans								$ 150,000,000
2.44% due August 2035
Debt Instrument [Line Items]
Term loan restatement to provide additional funding																																					$ 15,000,000
Term loan restatement committed amount																																					$ 35,000,000
Variable Rate Short-Term Debt
Debt Instrument [Line Items]
Aggregate principal amount																							$ 50,000,000
Term of derivatives																							4 years
Variable Rate Short-Term Debt \| Interest rate 1
Debt Instrument [Line Items]
Fixed interest rate																							1.926%
Variable Rate Short-Term Debt \| Interest rate 2
Debt Instrument [Line Items]
Fixed interest rate																							1.823%
Variable Rate Short-Term Debt \| Interest rate 3
Debt Instrument [Line Items]
Fixed interest rate																							1.629%
Maximum
Debt Instrument [Line Items]
Short-term debt - affiliate																			150,000,000
PNM and TNMP
Debt Instrument [Line Items]
Short-term debt - affiliate																			$ 0	0
PNM
Debt Instrument [Line Items]
Maturity term over which financings require regulator approval (more than)																			18 months
Short-term debt																			$ 7,400,000	$ 10,000,000
Common stock, shares issued (in shares) \| shares																			39,117,799	39,117,799
Interest expenses																			$ 51,360,000	$ 64,615,000	72,900,000
Letters of credit outstanding																			0
PNM \| Subsequent Event
Debt Instrument [Line Items]
Consolidated invested cash																								1,000,000
PNM \| PNM 2019 $250 Million Term Loan
Debt Instrument [Line Items]
Aggregate principal amount																																			$ 250,000,000
PNM \| PNM 2019 $40.0 Million Term Loan due June 2021
Debt Instrument [Line Items]
Aggregate principal amount																$ 40,000,000
Repayments of debt				$ 40,000,000
PNM \| PNM 2019 Term Loan
Debt Instrument [Line Items]
Repayments of debt				40,000,000
PNM \| PNM Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of debt																$ 40,000,000
PNMR
Debt Instrument [Line Items]
Short-term debt - affiliate																			6,400,000	0
PNMR \| Subsequent Event
Debt Instrument [Line Items]
Short-term debt - affiliate																								6,300,000
PNMR \| PNMR 2018 Two-Year Term Loan due December 2020
Debt Instrument [Line Items]
Repayments of debt							$ 220,000,000
PNMR \| PNMR 3.25% 2018 SUNs due March 2021
Debt Instrument [Line Items]
Term loans																			$ 0	300,000,000
Stated percentage																			3.25%
PNMR \| PNMR 2020 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Term loans																			$ 0	80,000,000
PNMR \| PNMR Development Term Loan due January 2022
Debt Instrument [Line Items]
Term loans																			0	65,000,000
PNMR \| PNMR 2020 Term Loan
Debt Instrument [Line Items]
Term loans																			0	150,000,000
PNMR \| PNMR 2021 Delayed-Draw Term Loan due May 2023
Debt Instrument [Line Items]
Term loans																			900,000,000	0
PNMR \| PNM 2019 Term Loan
Debt Instrument [Line Items]
Term loans																			0	150,000,000
PNMR Development
Debt Instrument [Line Items]
Short-term debt - affiliate																			0	300,000
PNMR Development \| Deposit Related to Potential Transmission Interconnections
Debt Instrument [Line Items]
Amount of related party transaction																						$ 68,200,000
Accrued interest																						$ 5,700,000
Interest expenses																					3,300,000
PNMR Development \| Subsequent Event
Debt Instrument [Line Items]
Short-term debt - affiliate																								0
Texas-New Mexico Power Company
Debt Instrument [Line Items]
Short-term debt																			$ 400,000	$ 0
Common stock, shares issued (in shares) \| shares																			6,358	6,358
Interest expenses																			$ 33,735,000	$ 30,388,000	29,100,000
Letters of credit outstanding																			$ 0
Texas-New Mexico Power Company \| Subsequent Event
Debt Instrument [Line Items]
Short-term debt - affiliate																								45,500,000
Consolidated invested cash																								$ 0
Line of Credit \| PNMR 2021 Delayed-Draw Term Loan due May 2023 \| Revolving Credit Facility
Debt Instrument [Line Items]
Proceeds from Long-term Lines of Credit		$ 50,000,000			$ 850,000,000
Interest rates on outstanding borrowings																			0.95%
Line of Credit \| PNMR 2021 Delayed-Draw Term Loan due May 2023 \| Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Proceeds from Long-term Lines of Credit	$ 100,000,000
Line of Credit \| PNMR Development Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of debt					40,000,000
Line of Credit \| PNMR Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of debt					92,100,000
Line of Credit \| PNMR and PNMR Development
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%
Line of Credit \| PNM \| PNM Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of debt											$ 100,000,000
Letter of Credit \| PNMR \| Letter or credit, 30 mil JP Morgan
Debt Instrument [Line Items]
Aggregate principal amount																																							$ 30,300,000
Senior Unsecured Notes \| PNMR 3.25% 2018 SUNs due March 2021
Debt Instrument [Line Items]
Aggregate principal amount																				$ 300,000,000
Stated percentage																				3.25%
Repayments of debt						$ 80,000,000
Senior Unsecured Notes \| PNM
Debt Instrument [Line Items]
Shelf registration statement, capacity of issuance (up to)																			$ 650,000,000
Senior Unsecured Notes \| PNM \| PNM 2019 $40.0 Million Term Loan due June 2021
Debt Instrument [Line Items]
Term loans																			0	$ 40,000,000
Senior Unsecured Notes \| PNM \| PNM 2021 $75.0 Million Term Loan due December 2022
Debt Instrument [Line Items]
Term loans																			$ 75,000,000	0
Senior Unsecured Notes \| Texas-New Mexico Power Company \| First Mortgage Bonds at 9.50% due 2019
Debt Instrument [Line Items]
Stated percentage																	9.50%
Extinguishment of debt																	$ 172,300,000
Medium-term Notes \| PNMR Development Term Loan due January 2022
Debt Instrument [Line Items]
Aggregate principal amount																				65,000,000								$ 90,000,000
Repayments of debt					65,000,000
Medium-term Notes \| PNMR 2019 Term Loan
Debt Instrument [Line Items]
Aggregate principal amount																				150,000,000
Medium-term Notes \| PNM \| PNM 2019 Term Loan
Debt Instrument [Line Items]
Repayments of debt												$ 250,000,000
Medium-term Notes \| PNM \| PNM 2020 $250.0 Million Term Loan
Debt Instrument [Line Items]
Aggregate principal amount												$ 250,000,000
Repayments of debt								150,000,000
Bonds
Debt Instrument [Line Items]
Repayments of debt										$ 302,500,000
Bonds \| City of Farmington, New Mexico
Debt Instrument [Line Items]
Aggregate principal amount																														$ 266,500,000
Bonds \| PNMR 2018 Two-Year Term Loan due December 2020
Debt Instrument [Line Items]
Repayments of debt								$ 50,000,000
Bonds \| PNMR 2020 Delayed-Draw Term Loan
Debt Instrument [Line Items]
Repayments of debt					300,000,000
Bonds \| PNMR 2019 Term Loan
Debt Instrument [Line Items]
Repayments of debt					150,000,000
Bonds \| PNMR 2020 Term Loan
Debt Instrument [Line Items]
Repayments of debt					$ 150,000,000
Bonds \| Pollution Control Revenue Bonds Due June Twenty Twenty
Debt Instrument [Line Items]
Term loans																					$ 100,300,000
Number Of Outstanding PCRB's Subject To Mandatory Tender \| bond_series																					3
Bonds \| Pollution Control Revenue Bonds Due June Twenty Forty
Debt Instrument [Line Items]
Term loans																				40,000,000
Number Of Outstanding PCRB's Subject To Mandatory Tender \| bond_series																					1
Bonds \| Pollution Control Revenue Bonds, Due 2043
Debt Instrument [Line Items]
Number Of Outstanding PCRB's Subject To Mandatory Tender \| bond_series																					2
Bonds \| Pollution Control Revenue Bonds, Due 2043, Series 1
Debt Instrument [Line Items]
Term loans																				39,300,000
Bonds \| Pollution Control Revenue Bonds, Due 2043, Series 2
Debt Instrument [Line Items]
Term loans																				21,000,000
Bonds \| PNM 2021 Fixed Rate PCRBs
Debt Instrument [Line Items]
Stated percentage																									0.875%
Bonds \| Pollution Control Revenue Bonds, 6.25%, Callable \| Maricopa County, Arizona Pollution Control Corporation
Debt Instrument [Line Items]
Aggregate principal amount															$ 36,000,000						$ 36,000,000
Stated percentage																					6.25%
Debt instrument, redemption price, percentage															101.00%
Bonds \| Pollution Control Revenue Bonds, 6.25%, Callable \| City of Farmington, New Mexico
Debt Instrument [Line Items]
Aggregate principal amount																					$ 11,500,000
Stated percentage																					6.25%
Bonds \| Pollution Control Revenue Bonds, 5.90%, Callable \| City of Farmington, New Mexico
Debt Instrument [Line Items]
Aggregate principal amount																					$ 255,000,000
Stated percentage																					5.90%
Bonds \| Pollution Control Revenue Bonds, Due 2033
Debt Instrument [Line Items]
Term loans																				$ 146,000,000
Stated percentage																				2.15%
Notes Payable to Banks \| PNM \| PNM 2017 Term Loan Agreement \| JPMorgan Chase Bank, N.A. and U.S. Bank National Association
Debt Instrument [Line Items]
Aggregate principal amount																																				$ 200,000,000
Notes Payable to Banks \| PNM \| PNM 2021 $75.0 Million Term Loan due December 2022
Debt Instrument [Line Items]
Aggregate principal amount				$ 75,000,000
Variable interest rate																			0.93%
Senior Notes \| Senior Unsecured Notes, 3.21% Series A, due April 2030
Debt Instrument [Line Items]
Aggregate principal amount											$ 150,000,000
Stated percentage											3.21%
Senior Notes \| Senior Unsecured Notes, 3.57% Series B, due April 2039
Debt Instrument [Line Items]
Aggregate principal amount											$ 50,000,000
Stated percentage											3.57%
Senior Notes \| PNM 2021 SUNs At 2.59 Percent Due July 15, 2033
Debt Instrument [Line Items]
Aggregate principal amount			$ 80,000,000
Stated percentage			2.59%
Senior Notes \| PNM 2021 SUNs At 3.14 Percent Due July 15, 2041
Debt Instrument [Line Items]
Aggregate principal amount			$ 80,000,000
Stated percentage			3.14%
Senior Notes \| PNM SUNs At 5.35 Percent Due October 1, 2021
Debt Instrument [Line Items]
Stated percentage			5.35%
Repayments of debt			$ 160,000,000
Senior Notes \| Two Point Two Nine Percent Senior Unsecured Notes Due July 15, 2033
Debt Instrument [Line Items]
Stated percentage																										2.29%
Senior Notes \| Two Point Two Nine Percent Senior Unsecured Notes Due December 30, 2031
Debt Instrument [Line Items]
Aggregate principal amount		$ 50,000,000
Senior Notes \| Two Point Nine Seven Senior Unsecured Notes Due December 30, 2041
Debt Instrument [Line Items]
Aggregate principal amount																										$ 100,000,000
Stated percentage																										2.97%
Senior Notes \| PNM
Debt Instrument [Line Items]
Aggregate principal amount											$ 200,000,000
Senior Notes \| PNM \| PNM 2020 $250.0 Million Term Loan
Debt Instrument [Line Items]
Repayments of debt											$ 100,000,000
Senior Notes \| PNM \| PNM 2021 Note Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount			160,000,000
Senior Notes \| PNM \| PNM September 2021 Note Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount																										$ 150,000,000
Secured Debt \| Texas-New Mexico Power Company \| TNMP Term Loan Agreement
Debt Instrument [Line Items]
Aggregate principal amount																																						$ 20,000,000
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2020 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount																															$ 185,000,000
Series of bond issuance \| bond_series																															4
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2020 Bond Purchase Agreement, Bond Series 1 and 2
Debt Instrument [Line Items]
Aggregate principal amount																															$ 110,000,000
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2020 Bond Purchase Agreement, Bond Series 3 and 4
Debt Instrument [Line Items]
Aggregate principal amount																													$ 75,000,000
Secured Debt \| Texas-New Mexico Power Company \| TNMP 2021 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount			$ 65,000,000																								$ 65,000,000
Stated percentage																											2.44%
Secured Debt \| Texas-New Mexico Power Company \| TNMP First Mortgage Bonds
Debt Instrument [Line Items]
Aggregate principal amount																			$ 750,000,000
Debt instrument, prepayment period																			30 days
Debt instrument, redemption price, percentage of principal amount redeemed																			100.00%
Mortgages \| Texas-New Mexico Power Company \| TNMP 2019 Bond Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount																																	$ 225,000,000	$ 305,000,000
Stated percentage																																		400.00%
Mortgages \| Texas-New Mexico Power Company \| First Mortgage Bonds at 3.60% due 2029
Debt Instrument [Line Items]
Aggregate principal amount																																$ 80,000,000