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Significant Accounting Policies - Additional Information (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) DebtInvestment InvesteeCompany | Dec. 31, 2021 USD ($) InvesteeCompany
Accounting Policies [Abstract] |  |
Amount provided to portfolio companies | $ 200.1 | $ 239.6
Amount provided to portfolio companies contractually obligated | $ 30.1 | $ 21.3
Number of investee companies where loans held | InvesteeCompany | 96 | 92
Aggregate principal amount of loans held | $ 518.4 | $ 469.0
Percentage of investment portfolio valuation | 100.00% |
Number of debt investments on non-accrual status | DebtInvestment | 4 |

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