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FINANCIAL HIGHLIGHTS - Schedule of Financial Highlights, Additional Information (Details) - $ / shares | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Investment Company, Financial Highlights [Line Items] |  |  |  |
Per share market value at end of period (in dollars per share) | $ 20.82 | $ 18.27 | $ 20.03 | $ 18.47
Total distributions to stockholders (in dollars per share) | $ 0.48 | $ 0.48 |  |
Ratio of operating expenses to average net assets | 12.79% | 12.31% |  |
Base management fee |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 3.03% | 3.27% |  |
Income based fee and capital gains incentive fee |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 3.91% | 2.88% |  |
Interest and credit facility fees |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 5.52% | 5.77% |  |
Other operating expenses |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 0.33% | 0.39% |  |

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