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DERIVATIVES AND HEDGING - Narrative (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Cash collateral received from third-parties | $ 95,000 | $ 87,000
Cash collateral paid | 15,000 | 3,000
Fair value of derivative liabilities subject to cross acceleration provisions | 48,000 | 72,000
Fair value of derivative liabilities subject to cross default provisions | 153,000 | 164,000
I&M |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Cash collateral paid | 10,000 | 600
APCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Fair value of derivative liabilities subject to cross default provisions | 2,000 | 1,000
PSO |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Fair value of derivative liabilities subject to cross default provisions | 8,000 | 4,000
SWEPCo |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Fair value of derivative liabilities subject to cross default provisions | $ 2,000 | $ 2,000
Commodity |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Maximum length of time to hedge exposure to variability | 10 years |
Cross acceleration provisions maximum third party obligation amount | $ 50,000 |
Cross default provisions maximum third party obligation amount | $ 50,000 |

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