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FINANCIAL HIGHLIGHTS - Schedule of Financial Highlights, Additional Information (Details) - $ / shares | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Investment Company, Financial Highlights [Line Items] |  |  |  |
Additional dividends declared (in dollars per share) |  | $ 0.03 |  |
Per share market value at end of period (in dollars per share) | $ 18.27 | 20.95 | $ 18.47 | $ 21.19
Total distributions to stockholders (in dollars per share) | $ 0.48 | $ 0.45 |  |
Ratio of operating expenses to average net assets | 12.31% | 10.17% |  |
Base management fees |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 3.27% | 3.24% |  |
Income based fees and capital gains incentive fees |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 2.88% | 2.35% |  |
Cost of borrowing |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 5.77% | 4.15% |  |
Other operating expenses |  |  |  |
Investment Company, Financial Highlights [Line Items] |  |  |  |
Ratio of operating expenses to average net assets | 0.39% | 0.43% |  |

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