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SENIOR DEBT - Additional Information (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |
Fair value of senior debt | $ 1,732,000,000 | $ 1,682,000,000
Unused Lines of Credit |  |
Debt Instrument [Line Items] |  |
Unused lines of credit | $ 210,000,000 |
Second Amended and Restated Credit Agreement |  |
Debt Instrument [Line Items] |  |
Duration of senior revolving credit facility, in years | 5 years |
Senior revolving credit facility | $ 200,000,000 |
Line of credit, expiration date | Jun. 06, 2028 |

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