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Commitments and Contingencies - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022
Commitments And Contingencies Disclosure [Line Items] |  |
Commitments to fund investments | $ 151,400,000 | $ 150,600,000
Maximum |  |
Commitments And Contingencies Disclosure [Line Items] |  |
Unfunded commitments |  | $ 28,400,000
Minimum |  |
Commitments And Contingencies Disclosure [Line Items] |  |
Unfunded commitments | $ 15,300,000 |

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