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Consolidated Statements of Earnings (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Electric Operating Revenues | $ 1,435,853us-gaap_ElectricUtilityRevenue | $ 1,387,923us-gaap_ElectricUtilityRevenue | $ 1,342,403us-gaap_ElectricUtilityRevenue
Operating Expenses: |  |  |
Cost of energy | 471,556us-gaap_CostOfGoodsSoldElectric | 432,316us-gaap_CostOfGoodsSoldElectric | 399,850us-gaap_CostOfGoodsSoldElectric
Administrative and general | 171,111us-gaap_GeneralAndAdministrativeExpense | 179,210us-gaap_GeneralAndAdministrativeExpense | 187,740us-gaap_GeneralAndAdministrativeExpense
Energy production costs | 185,638us-gaap_ElectricProductionExpense | 175,819us-gaap_ElectricProductionExpense | 185,417us-gaap_ElectricProductionExpense
Regulatory disallowances | 1,062pnm_RegulatoryDisallowance | 12,235pnm_RegulatoryDisallowance | 0pnm_RegulatoryDisallowance
Depreciation and amortization | 172,634us-gaap_CostOfServicesDepreciationAndAmortization | 166,881us-gaap_CostOfServicesDepreciationAndAmortization | 164,173us-gaap_CostOfServicesDepreciationAndAmortization
Transmission and distribution costs | 66,571pnm_TransmissionAndDistributionCosts | 70,124pnm_TransmissionAndDistributionCosts | 71,125pnm_TransmissionAndDistributionCosts
Taxes other than income taxes | 67,584us-gaap_UtilitiesOperatingExpenseTaxes | 64,496us-gaap_UtilitiesOperatingExpenseTaxes | 60,377us-gaap_UtilitiesOperatingExpenseTaxes
Total operating expenses | 1,136,156us-gaap_UtilitiesOperatingExpense | 1,101,081us-gaap_UtilitiesOperatingExpense | 1,068,682us-gaap_UtilitiesOperatingExpense
Operating income | 299,697us-gaap_OperatingIncomeLoss | 286,842us-gaap_OperatingIncomeLoss | 273,721us-gaap_OperatingIncomeLoss
Other Income and Deductions: |  |  |
Interest income | 8,483us-gaap_InvestmentIncomeInterest | 10,043us-gaap_InvestmentIncomeInterest | 13,072us-gaap_InvestmentIncomeInterest
Gains on available-for-sale securities | 10,527us-gaap_GainLossOnInvestments | 10,612us-gaap_GainLossOnInvestments | 12,965us-gaap_GainLossOnInvestments
Other income | 12,048us-gaap_OtherIncome | 10,572us-gaap_OtherIncome | 12,746us-gaap_OtherIncome
Gain on sale of First Choice | 0pnm_GainOnSaleOfBusinessSegment | 0pnm_GainOnSaleOfBusinessSegment | 1,012pnm_GainOnSaleOfBusinessSegment
Other (deductions) | (10,481)us-gaap_OtherExpenses | (21,552)us-gaap_OtherExpenses | (17,636)us-gaap_OtherExpenses
Net other income and deductions | 20,577us-gaap_OtherNonoperatingIncomeExpense | 9,675us-gaap_OtherNonoperatingIncomeExpense | 22,159us-gaap_OtherNonoperatingIncomeExpense
Interest Charges | 119,627us-gaap_InterestExpense | 121,448us-gaap_InterestExpense | 120,845us-gaap_InterestExpense
Earnings before Income Taxes | 200,647us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 175,069us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 175,035us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income Taxes | 69,738us-gaap_IncomeTaxExpenseBenefit | 59,513us-gaap_IncomeTaxExpenseBenefit | 54,910us-gaap_IncomeTaxExpenseBenefit
Net Earnings | 130,909us-gaap_ProfitLoss | 115,556us-gaap_ProfitLoss | 120,125us-gaap_ProfitLoss
(Earnings) Attributable to Valencia Non-controlling Interest | (14,127)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (14,521)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (14,050)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net Earnings Attributable to Company | 116,254us-gaap_NetIncomeLoss | 100,507us-gaap_NetIncomeLoss | 105,547us-gaap_NetIncomeLoss
Preferred Stock Dividends Requirements | (528)us-gaap_DividendsPreferredStock | (528)us-gaap_DividendsPreferredStock | (528)us-gaap_DividendsPreferredStock
Net Earnings Available for PNM Common Stock | 116,254us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 100,507us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 105,547us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Net Earnings Attributable to PNMR per Common Share: |  |  |
Basic (dollars per share) | $ 1.46us-gaap_EarningsPerShareBasic | $ 1.26us-gaap_EarningsPerShareBasic | $ 1.32us-gaap_EarningsPerShareBasic
Diluted (dollars per share) | $ 1.45us-gaap_EarningsPerShareDiluted | $ 1.25us-gaap_EarningsPerShareDiluted | $ 1.31us-gaap_EarningsPerShareDiluted
Public Service Company of New Mexico [Member] |  |  |
Electric Operating Revenues | 1,147,914us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 1,116,312us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 1,092,264us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Operating Expenses: |  |  |
Cost of energy | 403,626us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 374,710us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 353,649us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Administrative and general | 152,645us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 157,144us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 169,285us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Energy production costs | 185,638us-gaap_ElectricProductionExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 175,819us-gaap_ElectricProductionExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 185,403us-gaap_ElectricProductionExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Regulatory disallowances | 1,062pnm_RegulatoryDisallowance / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 12,235pnm_RegulatoryDisallowance / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 0pnm_RegulatoryDisallowance / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Depreciation and amortization | 109,524us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 103,826us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 97,291us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Transmission and distribution costs | 43,128pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 45,936pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 46,039pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Taxes other than income taxes | 39,578us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 37,457us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 34,715us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Total operating expenses | 935,201us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 907,127us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 886,382us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Operating income | 212,713us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 209,185us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 205,882us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Other Income and Deductions: |  |  |
Interest income | 8,557us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 10,182us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 13,243us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Gains on available-for-sale securities | 10,527us-gaap_GainLossOnInvestments / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 10,612us-gaap_GainLossOnInvestments / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 12,965us-gaap_GainLossOnInvestments / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Other income | 8,949us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 7,650us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 8,126us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Gain on sale of First Choice |  |  | 0pnm_GainOnSaleOfBusinessSegment / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Other (deductions) | (7,218)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (6,974)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (7,801)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Net other income and deductions | 20,815us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 21,470us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 26,533us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Interest Charges | 79,442us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 79,175us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 76,101us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Earnings before Income Taxes | 154,086us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 151,480us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 156,314us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Income Taxes | 52,633us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 48,804us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 50,713us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Net Earnings | 101,453us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 102,676us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 105,601us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
(Earnings) Attributable to Valencia Non-controlling Interest | (14,127)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (14,521)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (14,050)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Net Earnings Attributable to Company | 87,326us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 88,155us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 91,551us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Preferred Stock Dividends Requirements | (528)us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (528)us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (528)us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Net Earnings Available for PNM Common Stock | 86,798us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 87,627us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 91,023us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Texas-New Mexico Power Company [Member] |  |  |
Electric Operating Revenues | 287,939us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 271,611us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 250,140us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Operating Expenses: |  |  |
Cost of energy | 67,930us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 57,606us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 46,201us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Administrative and general | 36,982us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 44,635us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 40,775us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Depreciation and amortization | 50,056us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 50,219us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 49,340us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Transmission and distribution costs | 23,443pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 24,188pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 25,086pnm_TransmissionAndDistributionCosts / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Taxes other than income taxes | 23,940us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 22,778us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 21,218us-gaap_UtilitiesOperatingExpenseTaxes / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Total operating expenses | 202,351us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 199,426us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 182,620us-gaap_UtilitiesOperatingExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Operating income | 85,588us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 72,185us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 67,520us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Other Income and Deductions: |  |  |
Interest income | 0us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 1us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Other income | 2,865us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 2,377us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 4,698us-gaap_OtherIncome / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Gain on sale of First Choice |  |  | 0pnm_GainOnSaleOfBusinessSegment / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Other (deductions) | (727)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | (458)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | (1,959)us-gaap_OtherExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Net other income and deductions | 2,138us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 1,919us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 2,740us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Interest Charges | 27,396us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 27,393us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 28,161us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Earnings before Income Taxes | 60,330us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 46,711us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 42,099us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Income Taxes | 22,523us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 17,621us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 15,352us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Net Earnings | 37,807us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 29,090us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 26,747us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
(Earnings) Attributable to Valencia Non-controlling Interest | 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Net Earnings Attributable to Company | 37,807us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 29,090us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 26,747us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Preferred Stock Dividends Requirements | 0us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Net Earnings Available for PNM Common Stock | $ 37,807us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | $ 29,090us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | $ 26,747us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember

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