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Income Taxes - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Contingency [Line Items] |  |  |
Percentage of excise tax | 4.00% |  |
Federal income tax rate | 21.00% | 21.00% | 21.00%
Income tax expense at taxable subsidiaries | $ 1,809 | $ 1,827 | $ 628
Estimated undistributed ordinary taxable income | $ 28,818 | 18,562 |
Estimated undistributed ordinary taxable income per share | $ 1.18 |  |
Estimated undistributed long term capital gains | $ 11,225 | 15,277 |
Estimated undistributed long term capital gains per share | $ 0.45 |  |
Designate retained net capital gains | $ 40,801 |  |
Designate retained net capital gains per share | $ 1.65 |  |
United States federal income taxes behalf of stockholders related deemed distribution | $ 8,568 |  |
United States federal income taxes behalf of stockholders related deemed distribution per share | $ 0.35 |  |
Cost of investments | $ 811,962 | $ 623,527 |
Minimum |  |  |
Income Tax Contingency [Line Items] |  |  |
Percentage of investment company taxable income | 90.00% |  |
Percentage of taxable income | 98.00% |  |
Percentage of net capital gains realized | 98.20% |  |

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