XML 114 R95.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Lease Commitments - Finance Lease Balance Sheet Information (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing leases: |  |
Non-utility property | $ 48,826 | $ 49,981
Accumulated depreciation | (24,095) | (23,905)
Non-utility property, net | 24,731 | 26,076
Other current liabilities | 8,473 | 8,776
Other deferred credits | 16,299 | 17,326
PNM |  |
Financing leases: |  |
Non-utility property | 23,262 | 25,425
Accumulated depreciation | (10,975) | (11,984)
Non-utility property, net | 12,287 | 13,441
Other current liabilities | 3,836 | 4,146
Other deferred credits | 8,469 | 9,300
TNMP |  |
Financing leases: |  |
Non-utility property | 25,400 | 24,487
Accumulated depreciation | (13,058) | (11,869)
Non-utility property, net | 12,342 | 12,618
Other current liabilities | 4,604 | 4,616
Other deferred credits | $ 7,760 | $ 8,023

X
- Definition Finance Lease, Assets and Liabilities, Lessee [Abstract] + References No definition available. + Details
Name: | pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract
Namespace Prefix: | pnm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Finance Lease, Liability, Current, Other + References No definition available. + Details
Name: | pnm_FinanceLeaseLiabilityCurrentOther
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Finance Lease, Liability, Deferred Credits, Other + References No definition available. + Details
Name: | pnm_FinanceLeaseLiabilityDeferredCreditsOther
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Finance Lease, Right-Of-Use Asset, Accumulated Depreciation + References No definition available. + Details
Name: | pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Finance Lease, Right-Of-Use Asset, Gross + References No definition available. + Details
Name: | pnm_FinanceLeaseRightOfUseAssetGross
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
Name: | us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=pnm_PublicServiceCompanyOfNewMexicoMember
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: |