XML 76 R53.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Related Party Transactions (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Service billings [Member] | PNMR to PNM [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | $ 90,827 | $ 86,871 | $ 92,597
Service billings [Member] | PNMR to TNMP [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 28,109 | 28,349 | 28,937
Service billings [Member] | PNM to TNMP [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 554 | 524 | 562
Service billings [Member] | TNMP to PNMR [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 41 | 31 | 7
Income tax sharing payments [Member] | PNMR to PNM [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 1,450 | 0 | 77,433
Income tax sharing payments [Member] | PNMR to TNMP [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 0 | 0 | 0
Income tax sharing payments [Member] | TNMP to PNMR [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 0 | 0 | 3,643
Interest charges [Member] | TNMP to PNMR [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | 276 | 309 | 481
Interest charges [Member] | PNM to PNMR [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Amount of related party transaction | $ 54 | $ 65 | $ 4

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 + Details
Name: | us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | pnm_RelatedPartyTransactionByTransactionTypeAxis=pnm_ServiceBillingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnm_PnmrToPnmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnm_PnmrToTnmpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnm_PnmToTnmpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnm_TnmpToPnmrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pnm_RelatedPartyTransactionByTransactionTypeAxis=pnm_IncomeTaxSharingPaymentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pnm_RelatedPartyTransactionByTransactionTypeAxis=pnm_InterestChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=pnm_PnmToPnmrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |