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Borrowings (Details) - Schedule of Debt Issuance Costs - USD ($)
$ in Thousands
Jun. 30, 2023
Sep. 30, 2022
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