XML 51 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Equity [Abstract] |  |
Percentage of Pension Liability Adjustment Capitalized into Construction Work In Process | 23.20% | 15.00%
Percentage of Pension Liability Adjustment Capitalized into Other Accounts | 2.70% | 2.50%
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | $ (58,140) | $ (81,630)
Amounts reclassified from AOCI (pre-tax) | (1,912) | 303
Income tax impact of amounts reclassified | 756 | (119)
Other OCI changes (pre-tax) | 3,226 | 7,870
Income tax impact of other OCI changes | (1,279) | (3,115)
Total Other Comprehensive Income (Loss) | 791 | 4,939
Balance at March 31, 2014 | (57,349) | (76,691)
Accumulated Net Unrealized Investment Gain (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | 25,748 | 16,406
Amounts reclassified from AOCI (pre-tax) | (3,255) | (1,336)
Income tax impact of amounts reclassified | 1,283 | 529
Other OCI changes (pre-tax) | 3,379 | 7,858
Income tax impact of other OCI changes | (1,332) | (3,111)
Total Other Comprehensive Income (Loss) | 75 | 3,940
Balance at March 31, 2014 | 25,823 | 20,346
Accumulated Defined Benefit Plans Adjustment [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (83,625) | (97,820)
Amounts reclassified from AOCI (pre-tax) | 1,288 | 1,591
Income tax impact of amounts reclassified | (508) | (631)
Other OCI changes (pre-tax) | 0 | 0
Income tax impact of other OCI changes | 0 | 0
Total Other Comprehensive Income (Loss) | 780 | 960
Balance at March 31, 2014 | (82,845) | (96,860)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (263) | (216)
Amounts reclassified from AOCI (pre-tax) | 55 | 48
Income tax impact of amounts reclassified | (19) | (17)
Other OCI changes (pre-tax) | (153) | 12
Income tax impact of other OCI changes | 53 | (4)
Total Other Comprehensive Income (Loss) | (64) | 39
Balance at March 31, 2014 | (327) | (177)
Public Service Company of New Mexico [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (57,877) | (81,414)
Amounts reclassified from AOCI (pre-tax) | (1,967) | 255
Income tax impact of amounts reclassified | 775 | (102)
Other OCI changes (pre-tax) | 3,379 | 7,858
Income tax impact of other OCI changes | (1,332) | (3,111)
Total Other Comprehensive Income (Loss) | 855 | 4,900
Balance at March 31, 2014 | (57,022) | (76,514)
Public Service Company of New Mexico [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | 25,748 | 16,406
Amounts reclassified from AOCI (pre-tax) | (3,255) | (1,336)
Income tax impact of amounts reclassified | 1,283 | 529
Other OCI changes (pre-tax) | 3,379 | 7,858
Income tax impact of other OCI changes | (1,332) | (3,111)
Total Other Comprehensive Income (Loss) | 75 | 3,940
Balance at March 31, 2014 | 25,823 | 20,346
Public Service Company of New Mexico [Member] | Accumulated Defined Benefit Plans Adjustment [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (83,625) | (97,820)
Amounts reclassified from AOCI (pre-tax) | 1,288 | 1,591
Income tax impact of amounts reclassified | (508) | (631)
Other OCI changes (pre-tax) | 0 | 0
Income tax impact of other OCI changes | 0 | 0
Total Other Comprehensive Income (Loss) | 780 | 960
Balance at March 31, 2014 | (82,845) | (96,860)
Public Service Company of New Mexico [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | 0 | 0
Amounts reclassified from AOCI (pre-tax) | 0 | 0
Income tax impact of amounts reclassified | 0 | 0
Other OCI changes (pre-tax) | 0 | 0
Income tax impact of other OCI changes | 0 | 0
Total Other Comprehensive Income (Loss) | 0 | 0
Balance at March 31, 2014 | 0 | 0
Texas-New Mexico Power Company [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (263) | (216)
Amounts reclassified from AOCI (pre-tax) | 55 | 48
Income tax impact of amounts reclassified | (19) | (17)
Other OCI changes (pre-tax) | (153) | 12
Income tax impact of other OCI changes | 53 | (4)
Total Other Comprehensive Income (Loss) | (64) | 39
Balance at March 31, 2014 | (327) | (177)
Texas-New Mexico Power Company [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | 0 | 0
Amounts reclassified from AOCI (pre-tax) | 0 | 0
Income tax impact of amounts reclassified | 0 | 0
Other OCI changes (pre-tax) | 0 | 0
Income tax impact of other OCI changes | 0 | 0
Total Other Comprehensive Income (Loss) | 0 | 0
Balance at March 31, 2014 | 0 | 0
Texas-New Mexico Power Company [Member] | Accumulated Defined Benefit Plans Adjustment [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | 0 | 0
Amounts reclassified from AOCI (pre-tax) | 0 | 0
Income tax impact of amounts reclassified | 0 | 0
Other OCI changes (pre-tax) | 0 | 0
Income tax impact of other OCI changes | 0 | 0
Total Other Comprehensive Income (Loss) | 0 | 0
Balance at March 31, 2014 | 0 | 0
Texas-New Mexico Power Company [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |
Balance at December 31, 2012 | (263) | (216)
Amounts reclassified from AOCI (pre-tax) | 55 | 48
Income tax impact of amounts reclassified | (19) | (17)
Other OCI changes (pre-tax) | (153) | 12
Income tax impact of other OCI changes | 53 | (4)
Total Other Comprehensive Income (Loss) | (64) | 39
Balance at March 31, 2014 | $ (327) | $ (177)

X
- Details
Name: | pnm_AccumulatedOtherComprehensiveIncomeLossRollForward
Namespace Prefix: | pnm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income tax impact of amounts reclassified from accumulated other comprehensive income + References No definition available. + Details
Name: | pnm_IncomeTaxImpactOfAmountsReclassifiedFromAccumulatedOtherComprehensiveIncome
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of Pension Liability Adjustment Capitalized into Construction Work In Process + References No definition available. + Details
Name: | pnm_PercentageofPensionLiabilityAdjustmentCapitalizedintoConstructionWorkInProcess
Namespace Prefix: | pnm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of Pension Liability Adjustment Capitalized into Other Accounts + References No definition available. + Details
Name: | pnm_PercentageOfPensionLiabilityAdjustmentCapitalizedIntoOtherAccounts
Namespace Prefix: | pnm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before tax and reclassification adjustments of other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669619-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e39076-109324 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e640-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration