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Financial Highlights - Schedule of Financial Highlights (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Investment Company, Financial Highlights [Line Items] |  |
Net asset value at beginning of period | $ 19.43 | $ 19.96
Net investment income | 0.59 | 0.42
Net realized gain (loss) on investments, net of tax (provision) |  | 0.29
Net unrealized appreciation (depreciation) on investments | 0.03 | (0.22)
Realized losses on extinguishment of debt |  | (0.01)
Total increase from investment operations | 0.62 | 0.48
Accretive (dilutive) effect of share issuances and repurchases | 0.01 |
Dividends to stockholders | (0.66) | (0.53)
Other | (0.01) |
Net asset value at end of period | 19.39 | 19.91
Market value at end of period | $ 19.07 | $ 20.18
Shares outstanding at end of period | 24,988,398 | 24,437,400
Weighted average number of shares outstanding - basic | 24,803,951 | 24,437,400
Weighted average number of shares outstanding - diluted | 24,803,951 | 24,437,400
Net assets at end of period | $ 484,646 | $ 486,502
Average net assets | $ 482,495 | $ 487,133
Total expenses | 11.90% | 8.40%
Net investment income | 12.20% | 8.50%
Total return based on market value | 2.80% | 15.70%
Total return based on net asset value | 3.20% | 2.40%
Portfolio turnover ratio | 7.20% | 12.00%
Average debt outstanding | $ 433,257 | $ 385,290
Average debt per share | $ 17.47 | $ 15.77

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