XML 51 R56.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Investment in Unconsolidated Affiliate and Related Party Transactions Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Related Party Transaction [Line Items] |  |
Accounts receivable - unconsolidated affiliates | $ 5.6 us-gaap_AccountsReceivableRelatedPartiesCurrent | $ 12.4 us-gaap_AccountsReceivableRelatedPartiesCurrent
Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Revenue from Related Parties | 13.3 us-gaap_RevenueFromRelatedParties / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | 7.7 us-gaap_RevenueFromRelatedParties / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember
Operating Costs Charged [Member] | Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party | 16.8 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_OperatingCostsChargedMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | 17.8 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_OperatingCostsChargedMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember
Natural Gas Transportation [Member] | Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Purchases from Related Party | 34.9 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasTransportationMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | 23.2 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasTransportationMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember
Natural Gas Storage [Member] | Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Purchases from Related Party | 4.4 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasStorageMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | 8.6 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasStorageMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember
Natural Gas Purchases [Member] | Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Purchases from Related Party | 8.7 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasPurchasesMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | 14.8 us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_NaturalGasPurchasesMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember
Employment Costs [Member] | Og and E [Member] | Enable Midstream Partners [Member] |  |
Related Party Transaction [Line Items] |  |
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party | $ 104.8 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_EmploymentCostsMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember | $ 67.7 us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty / us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis = oge_EmploymentCostsMember / dei_LegalEntityAxis = oge_OgAndEMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = oge_EnableMidstreamPartnersMember

X
- Definition Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccountsReceivableRelatedPartiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 07 -Paragraph b -Subparagraph 1 -Article 6 + Details
Name: | us-gaap_RevenueFromRelatedParties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=oge_OgAndEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=oge_EmploymentCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=oge_NaturalGasPurchasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=oge_NaturalGasStorageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=oge_NaturalGasTransportationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=oge_OperatingCostsChargedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |