XML 94 R69.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Mar. 31, 2015 | Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Income Tax Contingency [Line Items] |  |  |  |  |  |
Decrease in regulatory liabilities due to change in state corporate tax rate |  | $ 2,000 |  | $ 4,600 |  |
Decrease in deferred tax asset due to change in state corporate tax rate |  |  |  | $ 200 |  |
Income Taxes | $ 17,353 |  | $ 15,893 |  | $ 25,870 | $ 22,313
State Net Operating Loss Carryforward, Impairment |  | 1,000 |  |  |  |
Public Service Company of New Mexico [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Increase in deferred tax asset not related to regulatory activity, as a result of tax rate change |  | 700 |  |  |  |
Decrease in income tax expense due to tax rate change |  | 500 |  |  |  |
Income Taxes | 11,527 |  | 13,106 |  | 17,302 | 17,189
State Net Operating Loss Carryforward, Impairment |  | 700 |  |  |  |
Corporate and Other [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Decrease in income tax expense due to tax rate change |  | 200 |  |  |  |
Income Taxes | $ (975) |  | (2,803) |  | $ (2,836) | (4,516)
State Net Operating Loss Carryforward, Impairment |  | $ 300 |  |  |  |
Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Income Taxes |  |  | 1,300 |  |  |
PNM Resources [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority |  |  | 2,000 |  |  | $ 2,000
Income Taxes |  |  | 200 |  |  |
Public Service Company of New Mexico [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Income Taxes |  |  | 1,100 |  |  |
Texas-New Mexico Power Company [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Income Taxes |  |  | $ 0 |  |  |

X
- Definition Decrease in deferred tax asset due to change in state corporate tax rate + References No definition available. + Details
Name: | pnm_Decreaseindeferredtaxassetduetochangeinstatecorporatetaxrate
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Decrease in income tax expense due to tax rate change + References No definition available. + Details
Name: | pnm_Decreaseinincometaxexpenseduetotaxratechange
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Decrease in regulatory liabilities due to change in state corporate tax rate + References No definition available. + Details
Name: | pnm_Decreaseinregulatoryliabilitiesduetochangeinstatecorporatetaxrate
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Increase in deferred tax asset not related to regulatory activity, as a result of tax rate change + References No definition available. + Details
Name: | pnm_Increaseindeferredtaxassetnotrelatedtoregulatoryactivityasaresultoftaxratechange
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition State Net Operating Loss Carryforward, Impairment + References No definition available. + Details
Name: | pnm_StateNetOperatingLossCarryforwardImpairment
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_IncomeTaxContingencyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
Name: | us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_InternalRevenueServiceIRSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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: |