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Borrowings (Details) - Schedule of Debt Issuance Costs - USD ($) $ in Thousands | Jun. 30, 2023 | Sep. 30, 2022
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Borrowings (Details) - Schedule of Debt Issuance Costs [Line Items] |  |
Aggregate Principal Available | $ 85,742 | $ 80,022
Principal Amount Outstanding | 85,742 | 80,022
Carrying Value | 83,960 | 77,963
Fair Value | 78,382 | 72,633
2023 Notes [Member] |  |
Borrowings (Details) - Schedule of Debt Issuance Costs [Line Items] |  |
Aggregate Principal Available |  | 22,522
Principal Amount Outstanding |  | 22,522
Carrying Value |  | 22,483
Fair Value |  | 22,378
2028 Notes [Member] |  |
Borrowings (Details) - Schedule of Debt Issuance Costs [Line Items] |  |
Aggregate Principal Available | 57,500 | 57,500
Principal Amount Outstanding | 57,500 | 57,500
Carrying Value | 55,718 | 55,480
Fair Value | 50,140 | 50,255
Revolving Credit Facility [Member] |  |
Borrowings (Details) - Schedule of Debt Issuance Costs [Line Items] |  |
Aggregate Principal Available | 28,242 |
Principal Amount Outstanding | 28,242 |
Carrying Value | 28,242 |
Fair Value | $ 28,242 |

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