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Borrowings (Details) - Schedule of Consolidated Statements of Assets and Liabilities - Level 1 [Member] - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Sep. 30, 2023
Schedule of Consolidated Statements of Assets and Liabilities [Line Items] |  |
Total debt issuance costs at beginning of period | $ 1,689 | $ 2,059
Amortized debt issuance costs | 166 | 370
Unamortized debt issuance costs | 1,523 | 1,689
2023 Notes [Member] |  |
Schedule of Consolidated Statements of Assets and Liabilities [Line Items] |  |
Total debt issuance costs at beginning of period |  | 39
Amortized debt issuance costs |  | 39
Unamortized debt issuance costs |  |
2028 Notes [Member] |  |
Schedule of Consolidated Statements of Assets and Liabilities [Line Items] |  |
Total debt issuance costs at beginning of period | 1,689 | 2,020
Amortized debt issuance costs | 166 | 331
Unamortized debt issuance costs | $ 1,523 | $ 1,689

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