2.2.0.7 false CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (USD $) 00100 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS true false In Thousands, except Per Share data false false 1 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 3 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Unit1 Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 4 USD false false Unit12 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Unit13 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS 0 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Electric Operating Revenues 1 us-gaap_ElectricUtilityRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 true true false false 503653000 503653 false false false 2 true true false false 477727000 477727 false false false 3 true true false false 1292865000 1292865 false false false 4 true true false false 1264701000 1264701 false false false xbrli:monetaryItemType monetary The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 4 Operating Expenses: 1 us-gaap_OperatingExpensesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 5 Cost of energy 2 pnm_FuelAndPurchasedPowerCosts pnm false debit duration Fuel and purchased power costs false false false false false false false false false false false verboselabel false 1 false true false false 215169000 215169 false false false 2 false true false false 199648000 199648 false false false 3 false true false false 557238000 557238 false false false 4 false true false false 556149000 556149 false false false xbrli:monetaryItemType monetary Fuel and purchased power costs No authoritative reference available. false 6 Administrative and general 2 us-gaap_GeneralAndAdministrativeExpense us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 71193000 71193 false false false 2 false true false false 67774000 67774 false false false 3 false true false false 196398000 196398 false false false 4 false true false false 191461000 191461 false false false xbrli:monetaryItemType monetary The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No authoritative reference available. false 7 Energy production costs 2 us-gaap_ElectricProductionExpense us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 42306000 42306 false false false 2 false true false false 40130000 40130 false false false 3 false true false false 148002000 148002 false false false 4 false true false false 135821000 135821 false false false xbrli:monetaryItemType monetary Cost incurred directly related to electricity produced and sold during the reporting period. No authoritative reference available. false 8 Regulatory disallowances 2 pnm_RegulatoryDisallowances pnm false debit duration Regulatory Disallowances false false false false false false false false false false false label false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false true false false 27286000 27286 false false false xbrli:monetaryItemType monetary Regulatory Disallowances No authoritative reference available. false 9 Depreciation and amortization 2 pnm_DepreciationAndAmortizationIncludingAssetsUsedInProduction pnm false debit duration Depreciation And Amortization Including Assets Used In Production false false false false false false false false false false false terselabel false 1 false true false false 38980000 38980 false false false 2 false true false false 38050000 38050 false false false 3 false true false false 113634000 113634 false false false 4 false true false false 111067000 111067 false false false xbrli:monetaryItemType monetary Depreciation And Amortization Including Assets Used In Production No authoritative reference available. false 10 Transmission and distribution costs 2 pnm_TransmissionAndDistributionCosts pnm false debit duration Costs incurred for transmission and distribution of electricity false false false false false false false false false false false terselabel false 1 false true false false 15012000 15012 false false false 2 false true false false 16029000 16029 false false false 3 false true false false 44574000 44574 false false false 4 false true false false 46444000 46444 false false false xbrli:monetaryItemType monetary Costs incurred for transmission and distribution of electricity No authoritative reference available. false 11 Taxes other than income taxes 2 us-gaap_UtilitiesOperatingExpenseTaxes us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 15585000 15585 false false false 2 false true false false 14560000 14560 false false false 3 false true false false 43456000 43456 false false false 4 false true false false 40156000 40156 false false false xbrli:monetaryItemType monetary Discloses the amount of operating expense for the period related to taxes other income . No authoritative reference available. false 12 Total operating expenses 2 us-gaap_UtilitiesOperatingExpense us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 398245000 398245 false false false 2 false true false false 376191000 376191 false false false 3 false true false false 1103302000 1103302 false false false 4 false true false false 1108384000 1108384 false false false xbrli:monetaryItemType monetary Discloses the total amount of all operating expenses for the period. No authoritative reference available. true 13 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 105408000 105408 false false false 2 false true false false 101536000 101536 false false false 3 false true false false 189563000 189563 false false false 4 false true false false 156317000 156317 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. true 14 Other Income and Deductions: 2 us-gaap_OtherNonoperatingIncomeExpenseAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 15 Interest income 3 us-gaap_InvestmentIncomeInterest us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 4499000 4499 false false false 2 false true false false 6902000 6902 false false false 3 false true false false 14608000 14608 false false false 4 false true false false 23348000 23348 false false false xbrli:monetaryItemType monetary Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 false 16 Gains on investments held by NDT 3 us-gaap_GainLossOnInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 2206000 2206 false false false 2 false true false false 3936000 3936 false false false 3 false true false false 2606000 2606 false false false 4 false true false false 2023000 2023 false false false xbrli:monetaryItemType monetary This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain or loss of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain or loss which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains or losses realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments of the subject investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13, 22 false 17 Other income 3 us-gaap_OtherIncome us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1963000 1963 false false false 2 false true false false 3168000 3168 false false false 3 false true false false 13333000 13333 false false false 4 false true false false 31489000 31489 false false false xbrli:monetaryItemType monetary Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 4 -Article 7 false 18 Equity in net earnings (loss) of Optim Energy 3 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 2495000 2495 false false false 2 false true false false 6902000 6902 false false false 3 false true false false -5714000 -5714 false false false 4 false true false false 944000 944 false false false xbrli:monetaryItemType monetary This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. Such amount typically reflects adjustments similar to those made in preparing consolidated statements, including adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 19 -Subparagraph c Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b false 19 Other deductions 3 us-gaap_OtherExpenses us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -3848000 -3848 false false false 2 false true false false -2325000 -2325 false false false 3 false true false false -8861000 -8861 false false false 4 false true false false -6957000 -6957 false false false xbrli:monetaryItemType monetary This element represents a sum total of expenses not separately reflected on the income statement for the period. No authoritative reference available. false 20 Net other income (deductions) 3 us-gaap_OtherNonoperatingIncomeExpense us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 7315000 7315 false false false 2 false true false false 18583000 18583 false false false 3 false true false false 15972000 15972 false false false 4 false true false false 50847000 50847 false false false xbrli:monetaryItemType monetary The net amount of other nonoperating income and expense, which does not qualify for separate disclosure on the income statement under materiality guidelines. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 true 21 Interest Charges 1 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 31317000 31317 false false false 2 false true false false 30535000 30535 false false false 3 false true false false 94488000 94488 false false false 4 false true false false 91301000 91301 false false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 22 Earnings before Income Taxes 1 pnm_EarningsLossBeforeIncomeTaxesIncludingIncomeLossFromEquityMethodInvestments pnm false credit duration Sum of operating profit and nonoperating income (expense) before income taxes, extraordinary items, cumulative effects of... false false false false false false false false false false false totallabel false 1 false true false false 81406000 81406 false false false 2 false true false false 89584000 89584 false false false 3 false true false false 111047000 111047 false false false 4 false true false false 115863000 115863 false false false xbrli:monetaryItemType monetary Sum of operating profit and nonoperating income (expense) before income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. No authoritative reference available. true 23 Income Taxes 1 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false label false 1 false true false false 28813000 28813 false false false 2 false true false false 31361000 31361 false false false 3 false true false false 37365000 37365 false false false 4 false true false false 37814000 37814 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 24 Earnings from Continuing Operations 1 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 52593000 52593 false false false 2 false true false false 58223000 58223 false false false 3 false true false false 73682000 73682 false false false 4 false true false false 78049000 78049 false false false xbrli:monetaryItemType monetary This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 true 25 Earnings (Loss) from Discontinued Operations, net of Income Taxes (Benefit) of $0, $(785), $0 and $37,381 1 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity us-gaap true credit duration No definition available. false false false false false false false false false false false label false 1 false false false false 0 0 false false false 2 false true false false -1362000 -1362 false false false 3 false false false false 0 0 false false false 4 false true false false 71880000 71880 false false false xbrli:monetaryItemType monetary This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 28 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph b(2) false 26 Net Earnings 1 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 52593000 52593 false false false 2 false true false false 56861000 56861 false false false 3 false true false false 73682000 73682 false false false 4 false true false false 149929000 149929 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) true 27 Earnings Attributable to Valencia Non-controlling Interest 1 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -3909000 -3909 false false false 2 false true false false -2536000 -2536 false false false 3 false true false false -10305000 -10305 false false false 4 false true false false -7890000 -7890 false false false xbrli:monetaryItemType monetary The portion of net income (loss) attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 false 28 Preferred Stock Dividend Requirements of Subsidiary 1 pnm_PreferredStockDividendRequirementsOfSubsidiary pnm false credit duration Preferred stock cash dividend declared by a subsidiary of the entity during the period. This element includes paid and unpaid... false false false false false false false false false false false label false 1 false true false false -132000 -132 false false false 2 false true false false -132000 -132 false false false 3 false true false false -396000 -396 false false false 4 false true false false -396000 -396 false false false xbrli:monetaryItemType monetary Preferred stock cash dividend declared by a subsidiary of the entity during the period. This element includes paid and unpaid dividends declared during the period. No authoritative reference available. false 29 Net Earnings Attributable to PNMR 1 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 true true false false 48552000 48552 false false false 2 true true false false 54193000 54193 false false false 3 true true false false 62981000 62981 false false false 4 true true false false 141643000 141643 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 30 Earnings from Continuing Operations Attributable to PNMR per Common Share: 1 pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract pnm false na duration Income Loss From Continuing Operations Attributable To Parent Per Share [Abstract] false false false false false true false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string Income Loss From Continuing Operations Attributable To Parent Per Share [Abstract] false 31 Basic 2 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare us-gaap true na duration No definition available. false false false false false false false false false false false terselabel true 1 true true false false 0.53 0.53 false false false 2 true true false false 0.61 0.61 false false false 3 true true false false 0.69 0.69 false false false 4 true true false false 0.76 0.76 false false false us-types:perShareItemType decimal The amount of income (loss) from continuing operations per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 32 Diluted 2 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare us-gaap true na duration No definition available. false false false false false false false false false false false terselabel true 1 true true false false 0.53 0.53 false false false 2 true true false false 0.6 0.6 false false false 3 true true false false 0.69 0.69 false false false 4 true true false false 0.76 0.76 false false false us-types:perShareItemType decimal The amount of income (loss) from continuing operations available to each share of common stock outstanding during the reporting period and each share that would have been outstanding assuming the issuance of common shares for all dilutive potential common shares outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 11, 12, 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 33 Net Earnings Attributable to PNMR per Common Share: 1 us-gaap_EarningsPerShareAbstract us-gaap true na duration No definition available. false false false false false true false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 34 Basic 2 us-gaap_EarningsPerShareBasic us-gaap true na duration No definition available. false false false false false false false false false false false label true 1 true true false false 0.53 0.53 false false false 2 true true false false 0.59 0.59 false false false 3 true true false false 0.69 0.69 false false false 4 true true false false 1.55 1.55 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 21 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 36, 37, 38 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 18 -Article 7 false 35 Diluted 2 us-gaap_EarningsPerShareDiluted us-gaap true na duration No definition available. false false false false false false false false false false false label true 1 true true false false 0.53 0.53 false false false 2 true true false false 0.59 0.59 false false false 3 true true false false 0.69 0.69 false false false 4 true true false false 1.55 1.55 false false false us-types:perShareItemType decimal The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period. 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