XML 137 R114.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Regulatory Assets |  |
Current | $ 73,046 | $ 20,265
Non-Current | 914,381 | 846,686
Regulatory Liabilities |  |
Current | (140,005) | (17,002)
Non-Current | (771,317) | (755,202)
PNM |  |
Regulatory Assets |  |
Current | 72,996 | 18,333
Non-Current | 838,727 | 763,941
Total regulatory assets | 911,723 | 782,274
Regulatory Liabilities |  |
Current | (134,846) | (7,913)
Non-Current | (565,021) | (556,989)
Total regulatory liabilities | (699,867) | (564,902)
PNM | SJGS Rate Reunds |  |
Regulatory Liabilities |  |
Current | (113,372) | 0
PNM | PVNGS rate refunds |  |
Regulatory Liabilities |  |
Current | (19,194) | 0
Non-Current | (19,194) | 0
PNM | Renewable energy rider, including excess return |  |
Regulatory Liabilities |  |
Current | 0 | (5,076)
PNM | Energy efficiency costs |  |
Regulatory Liabilities |  |
Current | (1,454) | (2,837)
PNM | Transmission cost recovery factor |  |
Regulatory Liabilities |  |
Current | 0 | 0
PNM | NMPRC hedging plan |  |
Regulatory Liabilities |  |
Current | (826) | 0
PNM | Cost of removal |  |
Regulatory Liabilities |  |
Non-Current | (247,627) | (238,903)
PNM | Deferred income taxes |  |
Regulatory Liabilities |  |
Non-Current | (281,588) | (301,493)
PNM | Renewable energy tax benefits |  |
Regulatory Liabilities |  |
Non-Current | (14,463) | (15,610)
PNM | Pension and OPEB |  |
Regulatory Liabilities |  |
Non-Current | 0 | 0
PNM | COVID-19 cost savings |  |
Regulatory Liabilities |  |
Non-Current | (900) | (900)
PNM | Other |  |
Regulatory Liabilities |  |
Non-Current | (1,249) | (83)
PNM | FPPAC |  |
Regulatory Assets |  |
Current | 65,251 | 8,904
PNM | NMPRC hedging plan |  |
Regulatory Assets |  |
Current | 0 | 9,429
PNM | Energy efficiency costs |  |
Regulatory Assets |  |
Current | 0 | 0
PNM | Renewable energy rider |  |
Regulatory Assets |  |
Current | 5,021 | 0
PNM | SJGS Energy Transition Property |  |
Regulatory Assets |  |
Current | 2,724 | 0
Non-Current | 340,629 | 343,238
PNM | SJGS - non-ETA |  |
Regulatory Assets |  |
Non-Current | 122,246 | 129,285
PNM | PVNGS leased interest |  |
Regulatory Assets |  |
Non-Current | 80,777 | 0
PNM | EIM |  |
Regulatory Assets |  |
Non-Current | 18,731 | 13,102
PNM | TEP |  |
Regulatory Assets |  |
Non-Current | 2,644 | 0
PNM | Loss on reacquired debt |  |
Regulatory Assets |  |
Non-Current | 13,806 | 15,323
PNM | Pension and OPEB |  |
Regulatory Assets |  |
Non-Current | 172,508 | 187,182
PNM | Deferred income taxes |  |
Regulatory Assets |  |
Non-Current | 71,359 | 67,621
PNM | AMS surcharge |  |
Regulatory Assets |  |
Non-Current | 0 | 0
PNM | AMS retirement and other costs |  |
Regulatory Assets |  |
Non-Current | 0 | 0
PNM | Deferred COVID-19 costs |  |
Regulatory Assets |  |
Non-Current | 5,664 | 5,664
PNM | Other |  |
Regulatory Assets |  |
Non-Current | 10,363 | 2,526
TNMP |  |
Regulatory Assets |  |
Current | 50 | 1,932
Non-Current | 75,654 | 82,745
Total regulatory assets | 75,704 | 84,677
Regulatory Liabilities |  |
Current | (5,159) | (9,089)
Non-Current | (206,296) | (198,213)
Total regulatory liabilities | (211,455) | (207,302)
TNMP | SJGS Rate Reunds |  |
Regulatory Liabilities |  |
Current | 0 | 0
TNMP | PVNGS rate refunds |  |
Regulatory Liabilities |  |
Current | 0 | 0
Non-Current | 0 | 0
TNMP | Renewable energy rider, including excess return |  |
Regulatory Liabilities |  |
Current | 0 | 0
TNMP | Energy efficiency costs |  |
Regulatory Liabilities |  |
Current | 0 | 0
TNMP | Transmission cost recovery factor |  |
Regulatory Liabilities |  |
Current | (5,159) | (9,089)
TNMP | NMPRC hedging plan |  |
Regulatory Liabilities |  |
Current | 0 | 0
TNMP | Cost of removal |  |
Regulatory Liabilities |  |
Non-Current | (117,759) | (97,030)
TNMP | Deferred income taxes |  |
Regulatory Liabilities |  |
Non-Current | (83,459) | (94,994)
TNMP | Renewable energy tax benefits |  |
Regulatory Liabilities |  |
Non-Current | 0 | 0
TNMP | Pension and OPEB |  |
Regulatory Liabilities |  |
Non-Current | (3,644) | (4,518)
TNMP | COVID-19 cost savings |  |
Regulatory Liabilities |  |
Non-Current | 0 | 0
TNMP | Other |  |
Regulatory Liabilities |  |
Non-Current | (1,434) | (1,671)
TNMP | FPPAC |  |
Regulatory Assets |  |
Current | 0 | 0
TNMP | NMPRC hedging plan |  |
Regulatory Assets |  |
Current | 0 | 0
TNMP | Energy efficiency costs |  |
Regulatory Assets |  |
Current | 50 | 1,932
TNMP | Renewable energy rider |  |
Regulatory Assets |  |
Current | 0 | 0
TNMP | SJGS Energy Transition Property |  |
Regulatory Assets |  |
Current | 0 | 0
Non-Current | 0 | 0
TNMP | SJGS - non-ETA |  |
Regulatory Assets |  |
Non-Current | 0 | 0
TNMP | PVNGS leased interest |  |
Regulatory Assets |  |
Non-Current | 0 | 0
TNMP | EIM |  |
Regulatory Assets |  |
Non-Current | 0 | 0
TNMP | TEP |  |
Regulatory Assets |  |
Non-Current | 0 | 0
TNMP | Loss on reacquired debt |  |
Regulatory Assets |  |
Non-Current | 25,019 | 26,317
TNMP | Pension and OPEB |  |
Regulatory Assets |  |
Non-Current | 21,854 | 21,558
TNMP | Deferred income taxes |  |
Regulatory Assets |  |
Non-Current | 8,882 | 9,193
TNMP | AMS surcharge |  |
Regulatory Assets |  |
Non-Current | 0 | 6,254
TNMP | AMS retirement and other costs |  |
Regulatory Assets |  |
Non-Current | 12,343 | 12,591
TNMP | Deferred COVID-19 costs |  |
Regulatory Assets |  |
Non-Current | 0 | 1,053
TNMP | Other |  |
Regulatory Assets |  |
Non-Current | $ 7,556 | $ 5,779

X
- References No definition available. + Details
Name: | us-gaap_NetRegulatoryAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481878/980-340-50-1 + Details
Name: | us-gaap_RegulatoryAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RegulatoryAssetsAndLiabilitiesOtherDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481878/980-340-50-1 + Details
Name: | us-gaap_RegulatoryAssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481878/980-340-50-1 + Details
Name: | us-gaap_RegulatoryAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481854/980-405-25-1 + Details
Name: | us-gaap_RegulatoryLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481854/980-405-25-1 + Details
Name: | us-gaap_RegulatoryLiabilityCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_RegulatoryLiabilityNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=pnm_PublicServiceCompanyOfNewMexicoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_SJGSRateReundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_PVNGSRateRefundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_RenewableEnergyRiderIncludingExcessReturnMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_EnergyEfficiencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_TransmissionCostRecoveryFactorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_NMPRCHedgingPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_RemovalCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_DeferredIncomeTaxChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_RenewableEnergyProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_PensionAndOtherPostretirementPlansCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=pnm_COVID19CostsSavingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_OtherRegulatoryAssetsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_FuelAndPurchasedPowerAdjustmentClauseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_NMPRCHedgingPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_EnergyEfficiencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_RenewableEnergyRiderMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_SJGSETAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_SJGSNonETAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_PVNGSLeasedInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_EIMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_TEPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=us-gaap_LossOnReacquiredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=us-gaap_PensionAndOtherPostretirementPlansCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=us-gaap_DeferredIncomeTaxChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=us-gaap_AdvancedMeteringInfrastructureCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_AdvancedMeterRetirementCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_DeferredCOVID19CostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=pnm_OtherRegulatoryAssetsNoncurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pnm_TexasNewMexicoPowerCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |