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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Share-based Payment Arrangement, Cost by Plan [Table Text Block] | The following table presents the Registrants' pre-tax compensation expense and related income tax benefit for the three months ended March 31, 2022 and 2021 related to performance units and restricted stock units for the Registrants' employees.
|  |  | OGE Energy |  | OG&E
|  | Three Months Ended March 31, |  | Three Months Ended March 31,
(In millions) |  |  | 2022 | 2021 |  | 2022 | 2021
Performance units - total shareholder return |  |  | $ | 1.8 |  | $ | 2.0 |  |  | $ | 0.6 |  | $ | 0.4 |
Restricted stock units |  |  | 0.5 |  | 0.5 |  |  | 0.2 |  | — |
Total compensation expense |  |  | $ | 2.3 |  | $ | 2.5 |  |  | $ | 0.8 |  | $ | 0.4 |
Income tax benefit |  |  | $ | 0.6 |  | $ | 0.6 |  |  | $ | 0.2 |  | $ | 0.1 |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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