XML 93 R69.htm IDEA: XBRL DOCUMENT v2.4.1.9

Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Service billings [Member] | PNMR to PNM [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	$ 22,727us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember	$ 21,066us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember
Service billings [Member] | PNMR to TNMP [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	7,078us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember	7,261us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember
Service billings [Member] | PNM to TNMP [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	92us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmToTnmpMember	109us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmToTnmpMember
Service billings [Member] | TNMP to PNMR [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	10us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_TnmpToPnmrMember	0us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_ServiceBillingsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_TnmpToPnmrMember
Interest charges [Member] | PNMR to PNM [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	6us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember	53us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember
Interest charges [Member] | PNMR to TNMP [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	79us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember	96us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember
Interest charges [Member] | PNM to PNMR [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	29us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmToPnmrMember	26us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_InterestChargesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmToPnmrMember
Income tax sharing payments [Member] | PNMR to PNM [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	0us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_IncomeTaxSharingPaymentsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember	0us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_IncomeTaxSharingPaymentsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToPnmMember
Income tax sharing payments [Member] | PNMR to TNMP [Member]
Related Party Transaction [Line Items]
Amount of related party transaction	$ 0us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_IncomeTaxSharingPaymentsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember	$ 0us-gaap_RelatedPartyTransactionAmountsOfTransaction / pnm_RelatedPartyTransactionByTransactionTypeAxis = pnm_IncomeTaxSharingPaymentsMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pnm_PnmrToTnmpMember

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 4

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864



Reference 2: 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 3: 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

+ Details

Name:	us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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_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:	pnm_RelatedPartyTransactionByTransactionTypeAxis=pnm_ServiceBillingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: