XML 100 R77.htm IDEA: XBRL DOCUMENT v3.24.0.1

Financing - Schedule of Hedging Arrangements (Details) - Designated as hedging instrument - Interest rate contract $ in Thousands	Dec. 31, 2023 USD ($)
Variable Rate Debt, 4.57%, Due September 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 150,000
Fixed interest rate	4.57%
Variable Rate Debt, 4.65%, Due December 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.65%
Variable Rate Debt, 4.66%, Due December 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.66%
Variable Rate Debt, 4.17% Due December 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.17%
Variable Rate Debt, 4.18%, Due December 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.18%
Variable Rate Debt, 2.52%, Due December 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	2.52%
Variable Rate Debt, 2.65% Due December 2023 (1)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 150,000
Fixed interest rate	2.65%
Variable Rate Debt, 2.65%, Due December 2023 (2)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 200,000
Fixed interest rate	2.65%
Variable Rate Debt, 3.32%, Due December 2024 (1)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	3.32%
Variable Rate Debt, 3.32%, Due December 2024 (2)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	3.32%
Variable Rate Debt, 3.38%, Due December 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	3.38%
Variable Rate Debt, 3.62%, Due December 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 150,000
Fixed interest rate	3.62%
Variable Rate Debt, 3.57%, Due December 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 150,000
Fixed interest rate	3.57%
Variable Rate Debt, 4.18%, Due December 2025 (1)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.18%
Variable Rate Debt, 4.18%, Due December 2025 (2)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	4.18%
Variable Rate Debt, 3.99%, Due December 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset, notional amount	$ 100,000
Fixed interest rate	3.99%

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SX 210.12-13(Column A)(Footnote 3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5C
-Subparagraph (SX 210.12-13C(Column E))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5A
-Subparagraph (SX 210.12-13A(Column D))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 5B
-Subparagraph (SX 210.12-13B(Column B))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeAssetNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- 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.

+ Details

Name:	us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt457DueSeptember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt465DueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt466DueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt417DueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt418DueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt252DueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt265DueDecember20231Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt265DueDecember20232Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt332DueDecember20241Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt332DueDecember20242Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt338DueDecember2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt362DueDecember2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt357DueDecember2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt418DueDecember2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt418DueDecember20252Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=pnm_VariableRateDebt399DueDecember2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: