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v2.4.1.9

Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Debt Instrument [Line Items] |  |
Total long-term debt | $ 2,755.3 us-gaap_LongTermDebt | $ 2,400.1 us-gaap_LongTermDebt
Percent of Principal Amount Subject to Optional Tender | 100.00%oge_PercentOfPrincipalAmountSubjectToOptionalTender |
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months | 0.2 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
Long-term Debt, Maturities, Repayments of Principal in Year Two | 110.2 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo |
Long-term Debt, Maturities, Repayments of Principal in Year Three | 225.1 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree |
Long-term Debt, Maturities, Repayments of Principal in Year Four | 250.1 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour |
Long-term Debt, Maturities, Repayments of Principal in Year Five | 250.1 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive |
Garfield Industrial Authority, January 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Date Due | Jan. 01, 2025 |
Muskogee Industrial Authority, Janaury 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Date Due | Jan. 01, 2025 |
Muskogee Industrial Authority, June 1, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Date Due | Jun. 01, 2027 |
Redeemable during the next 12 months |  |
Debt Instrument [Line Items] |  |
Total long-term debt | 135.4 us-gaap_LongTermDebt / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Redeemable during the next 12 months | Garfield Industrial Authority, January 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Series Minimum | 0.07%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = oge_GarfieldIndustrialAuthorityBondMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Series Maximum | 0.20%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = oge_GarfieldIndustrialAuthorityBondMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Redeemable during the next 12 months | Muskogee Industrial Authority, Janaury 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Series Minimum | 0.07%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2025Member / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Series Maximum | 0.18%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2025Member / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Redeemable during the next 12 months | Muskogee Industrial Authority, June 1, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Series Minimum | 0.04%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2027Member / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
Series Maximum | 0.15%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2027Member / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember |
OG&E [Member] | Redeemable during the next 12 months | Garfield Industrial Authority, January 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 47.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_GarfieldIndustrialAuthorityBondMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember | 47.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_GarfieldIndustrialAuthorityBondMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember
OG&E [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority, Janaury 1, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 32.4 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2025Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember | 32.4 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2025Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember
OG&E [Member] | Redeemable during the next 12 months | Muskogee Industrial Authority, June 1, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 56.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2027Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember | 56.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_MuskogeeIndustrialAuthorityBondDue2027Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_DebenturesSubjectToMandatoryRedemptionMember
Senior Notes [Member] | OG&E [Member] | Series due March 15, 2044 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 250.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesdueMarch152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesdueMarch152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Debt Instrument, Interest Rate, Stated Percentage | 4.55%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = oge_SeriesdueMarch152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Date Due | Mar. 15, 2044 |
Senior Notes [Member] | OG&E [Member] | Series due December 15, 2044 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 250.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesdueDecember152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesdueDecember152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Debt Instrument, Interest Rate, Stated Percentage | 4.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = oge_SeriesdueDecember152044Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Date Due | Dec. 15, 2044 |
Senior Notes [Member] | OG&E [Member] | Series Due August 1, 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | 0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 140.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Debt Instrument, Interest Rate, Stated Percentage | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Date Due | Aug. 01, 2034 |
Debt Instrument, Repurchased Face Amount | 140.0 us-gaap_DebtInstrumentRepurchasedFaceAmount / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 103.25%us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Redemption Premium | 4.6 us-gaap_RedemptionPremium / us-gaap_DebtInstrumentAxis = oge_SeriesDueAugust12034Member / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | OGE Energy [Member] | Series Due November 24, 2017 [Member] |  |
Debt Instrument [Line Items] |  |
Long term debt, gross | $ 100.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesDueNovember242017Member / dei_LegalEntityAxis = oge_OgeEnergyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | $ 0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = oge_SeriesDueNovember242017Member / dei_LegalEntityAxis = oge_OgeEnergyMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Date Due | Nov. 24, 2017 |

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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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