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FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Fair Value Option Quantitative Disclosures [Line Items] |  |  |  |  |
Transfers into or out of Level 3 in the fair value measurement hierarchy | $ 0 | $ 0 | $ 0 | $ 0 |
Unfunded commitments | 5,547,000 |  | 5,547,000 |  | $ 5,455,000
EGCP III |  |  |  |  |
Fair Value Option Quantitative Disclosures [Line Items] |  |  |  |  |
Unfunded commitments | $ 5,028,000 |  | $ 5,028,000 |  |

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