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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified | Total | Common Stock | Premium on Common Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interest | Treasury Stock
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2011 | $ 2,819.3 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 1.0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 1,034.3 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ 1,574.8 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (40.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ 256.0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | $ (6.2)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Comprehensive income (loss) |  |  |  |  |  |  |
Net income | 385.0 us-gaap_ProfitLoss | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 355.0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 30.0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Other comprehensive income, net of tax | (12.0)us-gaap_OtherComprehensiveIncomeLossNetOfTax | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (8.5)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (3.5)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Dividends declared on common stock | (157.4)us-gaap_DividendsCommonStockCash | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (157.4)us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Issuance of common stock | 14.3 us-gaap_StockIssuedDuringPeriodValueNewIssues | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 14.3 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Stock-based compensation | (2.8)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (8.7)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (0.2)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 6.1 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Contributions from noncontrolling interest partners | 46.2 us-gaap_ProceedsFromMinorityShareholders | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 10.7 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 35.5 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Distributions to noncontrolling interest partners | (12.6)us-gaap_PaymentsOfDividendsMinorityInterest | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (12.6)us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Deferred income taxes attributable to contributions from noncontrolling interest partners | (4.2)oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (4.2)oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Purchase of treasury stock | (3.4)us-gaap_PaymentsForRepurchaseOfCommonStock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | (3.4)us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Balance at Dec. 31, 2012 | 3,072.4 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 1.0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 1,046.4 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 1,772.4 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (49.1)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 305.2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | (3.5)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Comprehensive income (loss) |  |  |  |  |  |  |
Net income | 393.8 us-gaap_ProfitLoss | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 387.6 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 6.2 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Other comprehensive income, net of tax | 27.1 us-gaap_OtherComprehensiveIncomeLossNetOfTax | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 27.0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0.1 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Dividends declared on common stock | (168.8)us-gaap_DividendsCommonStockCash | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (168.8)us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Issuance of common stock | 14.2 us-gaap_StockIssuedDuringPeriodValueNewIssues | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 14.2 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Stock-based compensation | 0.9 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (1.8)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (0.8)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 3.5 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Contributions from noncontrolling interest partners | 107.0 us-gaap_ProceedsFromMinorityShareholders | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 22.5 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 84.5 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_ProceedsFromMinorityShareholders / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Distributions to noncontrolling interest partners | (2.5)us-gaap_PaymentsOfDividendsMinorityInterest | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (2.5)us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_PaymentsOfDividendsMinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Deconsolidation of Enogex Holdings | (398.3)oge_Deconsolidationofsubsidiary | 0 oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0.5 oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (6.1)oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (392.7)oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 oge_Deconsolidationofsubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Deferred income taxes attributable to contributions from noncontrolling interest partners | (8.7)oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (8.7)oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 oge_DeferredIncomeTaxesAttributableToContributionsFromNoncontrollingInterestPartners / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
2-for-1 forward stock split | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit | 1.0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (1.0)us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalStockSplit / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Purchase of treasury stock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock |  |  |  |  |  |
Balance at Dec. 31, 2013 | 3,037.1 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 2.0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 1,071.6 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 1,991.7 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (28.2)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Comprehensive income (loss) |  |  |  |  |  |  |
Net income | 395.8 us-gaap_ProfitLoss | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 395.8 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Other comprehensive income, net of tax | (13.2)us-gaap_OtherComprehensiveIncomeLossNetOfTax | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (13.2)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Dividends declared on common stock | (189.3)us-gaap_DividendsCommonStockCash | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (189.3)us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_DividendsCommonStockCash / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Issuance of common stock | 13.2 us-gaap_StockIssuedDuringPeriodValueNewIssues | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 13.2 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Stock-based compensation | 0.8 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 0.8 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Contributions from noncontrolling interest partners | 0 us-gaap_ProceedsFromMinorityShareholders |  |  |  |  |  |
Distributions to noncontrolling interest partners | 0 us-gaap_PaymentsOfDividendsMinorityInterest |  |  |  |  |  |
Purchase of treasury stock | 0 us-gaap_PaymentsForRepurchaseOfCommonStock |  |  |  |  |  |
Balance at Dec. 31, 2014 | $ 3,244.4 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 2.0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 1,085.6 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ 2,198.2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (41.4)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ 0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | $ 0 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember

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- Definition Deconsolidation of subsidiary + References No definition available. + Details
Name: | oge_Deconsolidationofsubsidiary
Namespace Prefix: | oge_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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