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Investments - Schedule of Investment Collateral (Details) - Revenue Benchmark - Collateral Type Concentration Risk | 3 Months Ended | 12 Months Ended
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Mar. 31, 2023 | Dec. 31, 2022
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 100.00% | 100.00%
Senior Secured First Lien [Member] |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 81.50% | 79.70%
Second Lien |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 16.50% | 18.40%
Unsecured [Member] |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 2.00% | 1.90%
All Assets Including Intellectual Property [Member] | Senior Secured First Lien [Member] |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 44.40% | 42.00%
All Assets with Negative Pledge on Intellectual Property [Member] | Senior Secured First Lien [Member] |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 25.60% | 26.10%
Last-out with Security Interest in all of the Assets [Member] | Senior Secured First Lien [Member] |  |
Schedule Of Investments [Line Items] |  |
Concentration Risk, Percentage | 11.50% | 11.60%

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