XML 61 R45.htm IDEA: XBRL DOCUMENT v2.4.1.9

Summary of Significant Accounting Policies Regulated Operations (Details) (USD $)
In Millions, unless otherwise specified

Dec. 31, 2014

Dec. 31, 2013

Schedule of Regulatory Assets and Liabilities [Line Items]

Fuel clause under recoveries

$ 68.3us-gaap_DeferredFuelCost

$ 26.2us-gaap_DeferredFuelCost

Regulatory Assets, Current

97.1us-gaap_RegulatoryAssetsCurrent

48.8us-gaap_RegulatoryAssetsCurrent

Regulatory Assets, Noncurrent

411.5us-gaap_RegulatoryAssetsNoncurrent

379.1us-gaap_RegulatoryAssetsNoncurrent

Regulatory Liability, Current

24.4us-gaap_RegulatoryLiabilityCurrent

20.2us-gaap_RegulatoryLiabilityCurrent

Regulatory Liability, Noncurrent

263.0us-gaap_RegulatoryLiabilityNoncurrent

234.2us-gaap_RegulatoryLiabilityNoncurrent

Smart Grid rider over recovery [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Current

12.5us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_SmartGridRiderOverRecoveryMember

^[1]

16.7us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_SmartGridRiderOverRecoveryMember

^[1]

Crossroads Wind Farm Rider Over Recovery [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Current

10.3us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_CrossroadsWindFarmRiderOverRecoveryMember

^[1]

0us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_CrossroadsWindFarmRiderOverRecoveryMember

^[1]

Other Regulatory Liabilities [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Current

1.6us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_OtherRegulatoryLiabilitiesMember

^[1]

3.5us-gaap_RegulatoryLiabilityCurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_OtherRegulatoryLiabilitiesMember

^[1]

Accrued removal obligations [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Noncurrent

248.1us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_AccruedRemovalObligationsMember

227.7us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_AccruedRemovalObligationsMember

Pension tracker [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Noncurrent

14.9us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_PensionTrackerMember

0us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_PensionTrackerMember

Deferred Pension Credit [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Liability, Noncurrent

0us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_DeferredPensionCreditMember

6.5us-gaap_RegulatoryLiabilityNoncurrent
/ us-gaap_RegulatoryLiabilityAxis
= oge_DeferredPensionCreditMember

Oklahoma demand program rider under recovery [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Current

19.7us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OklahomaDemandProgramRiderUnderRecoveryMember

^[2]

10.6us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OklahomaDemandProgramRiderUnderRecoveryMember

^[2]

Crossroads wind farm rider under recovery [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Current

0us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_CrossroadsWindFarmRiderUnderRecoveryMember

^[2]

4.7us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_CrossroadsWindFarmRiderUnderRecoveryMember

^[2]

Other Regulatory Assets [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Current

9.1us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OtherRegulatoryAssetsMember

^[2]

7.3us-gaap_RegulatoryAssetsCurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OtherRegulatoryAssetsMember

^[2]

Regulatory Assets, Noncurrent

16.8us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OtherRegulatoryAssetsMember

16.2us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_OtherRegulatoryAssetsMember

Benefit obligations regulatory asset [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

261.1us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_BenefitObligationsMember

227.4us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_BenefitObligationsMember

Income taxes recoverable from customers, net [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

56.1us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_IncomeTaxesRecoverableFromCustomersNetMember

56.5us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_IncomeTaxesRecoverableFromCustomersNetMember

Smart Grid [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

43.9us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_SmartGridMember

44.2us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_SmartGridMember

Deferred storm expenses [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

17.5us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_DeferredStormExpensesMember

21.6us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_DeferredStormExpensesMember

Unamortized loss on reacquired debt [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

16.1us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= us-gaap_LossOnReacquiredDebtMember

11.8us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= us-gaap_LossOnReacquiredDebtMember

Pension tracker [Member]

Schedule of Regulatory Assets and Liabilities [Line Items]

Regulatory Assets, Noncurrent

$ 0us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_PensionTrackerMember

$ 1.4us-gaap_RegulatoryAssetsNoncurrent
/ us-gaap_RegulatoryAssetAxis
= oge_PensionTrackerMember

[1]	Included in Other Current Liabilities on the Consolidated Balance Sheets.
[2]	Included in Other Current Assets on the Consolidated Balance Sheets.

X

- Details

Name:	oge_ScheduleOfRegulatoryAssetsAndLiabilitiesLineItems
Namespace Prefix:	oge_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount as of the balance sheet date of capitalized fuel costs of a regulated entity that are expected to be recoverable through rate adjustments 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 980

-SubTopic 340

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6499739&loc=d3e43603-110378

+ Details

Name:	us-gaap_DeferredFuelCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 340

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

+ Details

Name:	us-gaap_RegulatoryAssetsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources 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 980

-SubTopic 340

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

+ Details

Name:	us-gaap_RegulatoryAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 980

-SubTopic 405

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394

+ Details

Name:	us-gaap_RegulatoryLiabilityCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_RegulatoryLiabilityNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_BenefitObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_CrossroadsWindFarmRiderUnderRecoveryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_DeferredStormExpensesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_IncomeTaxesRecoverableFromCustomersNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_OklahomaDemandProgramRiderUnderRecoveryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_OtherRegulatoryAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_PensionTrackerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=oge_SmartGridMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryAssetAxis=us-gaap_LossOnReacquiredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_AccruedRemovalObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_CrossroadsWindFarmRiderOverRecoveryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_DeferredPensionCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_OtherRegulatoryLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_PensionTrackerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RegulatoryLiabilityAxis=oge_SmartGridRiderOverRecoveryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: