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COMMITMENTS AND CONTINGENCIES - Guarantees and Indemnifications Narrative (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
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Guarantor Obligations [Line Items] |  |  |
Fair value of guarantees |  | $ 4.4 | $ 4.2
Sunrise Wind LLC | Construction-related purchase agreements with third-party contractors | Forecast |  |  |
Guarantor Obligations [Line Items] |  |  |
Additional guaranty | $ 143.0 |  |

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