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Income Taxes (Additional Information) (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Income Taxes [Line Items] |  |  |  |
Reserve related to state tax position | $ 7,900,000 |  |  |
Unrecognized Tax Benefits | 28,600,000 | $ 20,700,000 | $ 22,400,000 | $ 21,900,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 0 | 0 | 0 |
Og and E [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Unrecognized Tax Benefits | 22,600,000 | 16,400,000 | $ 18,100,000 |
Deferred Tax Asset [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Unrecognized Tax Benefits | $ 14,700,000 |  |  |
Deferred Tax Asset [Member] | OGE Energy [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | $ 2,700,000 |  |

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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves, classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-6 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-8 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B + Details
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