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v2.4.1.9

Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |
Electric operating revenues | $ 332,868 us-gaap_ElectricUtilityRevenue | $ 328,897 us-gaap_ElectricUtilityRevenue |
Cost of energy | 115,645 us-gaap_CostOfGoodsSoldElectric | 112,614 us-gaap_CostOfGoodsSoldElectric |
Margin | 217,223 pnm_GrossMargin | 216,283 pnm_GrossMargin |
Other operating expenses | 122,193 pnm_OtherOperatingExpenses | 125,565 pnm_OtherOperatingExpenses |
Depreciation and amortization | 45,461 us-gaap_CostOfServicesDepreciationAndAmortization | 41,965 us-gaap_CostOfServicesDepreciationAndAmortization |
Operating income | 49,569 us-gaap_OperatingIncomeLoss | 48,753 us-gaap_OperatingIncomeLoss |
Interest income | 1,750 us-gaap_InvestmentIncomeInterest | 2,117 us-gaap_InvestmentIncomeInterest |
Other income (deductions) | 5,323 pnm_OtherIncomeDeductionsExcludingInterest | 1,216 pnm_OtherIncomeDeductionsExcludingInterest |
Net interest charges | (30,273)us-gaap_InterestExpense | (29,535)us-gaap_InterestExpense |
Earnings before Income Taxes | 26,369 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 22,551 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Income taxes (benefit) | 8,517 us-gaap_IncomeTaxExpenseBenefit | 6,420 us-gaap_IncomeTaxExpenseBenefit |
Segment earnings (loss) | 17,852 us-gaap_ProfitLoss | 16,131 us-gaap_ProfitLoss |
Valencia non-controlling interest | (3,380)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (3,531)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |
Subsidiary preferred stock dividends | (132)us-gaap_DividendsPreferredStock | (132)us-gaap_DividendsPreferredStock |
Net Earnings Available for PNM Common Stock | 14,340 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 12,468 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
Total Assets | 5,939,339 us-gaap_Assets | 5,507,026 us-gaap_Assets | 5,829,325 us-gaap_Assets
Goodwill | 278,297 us-gaap_Goodwill | 278,297 us-gaap_Goodwill | 278,297 us-gaap_Goodwill
Public Service Company of New Mexico [Member] |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |
Electric operating revenues | 261,940 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 262,736 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Cost of energy | 97,866 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 96,626 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Margin | 164,074 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 166,110 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Other operating expenses | 104,016 pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 107,724 pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Depreciation and amortization | 28,403 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 27,082 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Operating income | 31,655 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 31,304 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Interest income | 1,771 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 2,128 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Other income (deductions) | 5,810 pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 1,668 pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Net interest charges | (19,959)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (19,812)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Earnings before Income Taxes | 19,277 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 15,288 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Income taxes (benefit) | 5,775 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 4,083 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Segment earnings (loss) | 13,502 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 11,205 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Valencia non-controlling interest | (3,380)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (3,531)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Subsidiary preferred stock dividends | (132)us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | (132)us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Net Earnings Available for PNM Common Stock | 9,990 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 7,542 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember |
Total Assets | 4,464,487 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 4,219,635 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 4,473,652 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Goodwill | 51,632 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 51,632 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember | 51,632 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_PublicServiceCompanyOfNewMexicoMember
Texas-New Mexico Power Company [Member] |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |
Electric operating revenues | 70,928 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 66,161 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Cost of energy | 17,779 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 15,988 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Margin | 53,149 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 50,173 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Other operating expenses | 21,760 pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 21,069 pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Depreciation and amortization | 13,458 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 11,842 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Operating income | 17,931 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 17,262 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Interest income | 0 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0 us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Other income (deductions) | 1,291 pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 189 pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Net interest charges | (6,925)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | (6,598)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Earnings before Income Taxes | 12,297 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 10,853 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Income taxes (benefit) | 4,603 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 4,050 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Segment earnings (loss) | 7,694 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 6,803 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Valencia non-controlling interest | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Subsidiary preferred stock dividends | 0 us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 0 us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Net Earnings Available for PNM Common Stock | 7,694 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 6,803 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember |
Total Assets | 1,243,410 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 1,173,028 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 1,240,241 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Goodwill | 226,665 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 226,665 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember | 226,665 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = pnm_TexasNewMexicoPowerCompanyMember
Corporate and Other [Member] |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |
Electric operating revenues | 0 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_ElectricUtilityRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Cost of energy | 0 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_CostOfGoodsSoldElectric / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Margin | 0 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 pnm_GrossMargin / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Other operating expenses | (3,583)pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (3,228)pnm_OtherOperatingExpenses / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Depreciation and amortization | 3,600 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 3,041 us-gaap_CostOfServicesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Operating income | (17)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 187 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Interest income | (21)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (11)us-gaap_InvestmentIncomeInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Other income (deductions) | (1,778)pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (641)pnm_OtherIncomeDeductionsExcludingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Net interest charges | (3,389)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (3,125)us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Earnings before Income Taxes | (5,205)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (3,590)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Income taxes (benefit) | (1,861)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (1,713)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Segment earnings (loss) | (3,344)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (1,877)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Valencia non-controlling interest | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Subsidiary preferred stock dividends | 0 us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 0 us-gaap_DividendsPreferredStock / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Net Earnings Available for PNM Common Stock | (3,344)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | (1,877)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Total Assets | 231,442 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | 114,363 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |
Goodwill | $ 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember | $ 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateAndOtherMember |

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