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Borrowings - Schedule of Debt Issuance Costs (Details) - USD ($)
Jun. 30, 2025
Sep. 30, 2024
Schedule of Debt Issuance Costs [Line Items]    
Aggregate Principal Available [1] $ 72,169,000 $ 68,588,000
Principal Amount Outstanding 146,153,000 137,234,000
Carrying Value 144,918,632 135,723,636
Fair Value 142,749,000 131,714,000
2028 Notes [Member]    
Schedule of Debt Issuance Costs [Line Items]    
Aggregate Principal Available [1] 57,500,000 57,500,000
Principal Amount Outstanding 57,500,000 57,500,000
Carrying Value 56,393,000 56,143,000
Fair Value 54,096,000 51,980,000
2028 Promissory Note [Member]    
Schedule of Debt Issuance Costs [Line Items]    
Aggregate Principal Available [1] 1,661,000 1,661,000
Principal Amount Outstanding 1,661,000 1,661,000
Carrying Value 1,534,000 1,508,000
Fair Value 1,661,000 1,661,000
Revolving Credit Facility [Member]    
Schedule of Debt Issuance Costs [Line Items]    
Aggregate Principal Available [1] 13,008,000 9,427,000
Principal Amount Outstanding 86,992,000 78,073,000
Carrying Value 86,992,000 78,073,000
Fair Value $ 86,992,000 $ 78,073,000
[1] For the 2028 Notes and 2028 Promissory Note, this represents the total principal amount and for the Revolving Credit Facility, this represents the undrawn principal amount.