Borrowings - Schedule of Interest Expense, Amortized Debt Issuance Costs, Amortized Deferred Financing Costs, Weighted Average Stated Interest Rate And Weighted Average Outstanding Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Schedule of Interest Expense, Amortized Debt Issuance Costs, Amortized Deferred Financing Costs, Weighted Average Stated Interest Rate And Weighted Average Outstanding Debt [Line Items]
Credit facility interest	$ 6,141	$ 2,533	$ 1,390
Commitment fees	(8)	108	56
Amortization of deferred financing costs	559	566	287
Amortization of debt issuance costs	369	347	370
Other	111
Total	$ 10,279	$ 6,609	$ 5,532
Weighted average stated interest rate	6.50%	6.30%	5.90%
Weighted average debt outstanding	$ 144,153	$ 88,467	$ 81,600
2023 Notes [Member]
Schedule of Interest Expense, Amortized Debt Issuance Costs, Amortized Deferred Financing Costs, Weighted Average Stated Interest Rate And Weighted Average Outstanding Debt [Line Items]
Notes Interest			410
2028 Note [Member]
Schedule of Interest Expense, Amortized Debt Issuance Costs, Amortized Deferred Financing Costs, Weighted Average Stated Interest Rate And Weighted Average Outstanding Debt [Line Items]
Notes Interest	3,020	3,019	3,019
2028 Promissory Note [Member]
Schedule of Interest Expense, Amortized Debt Issuance Costs, Amortized Deferred Financing Costs, Weighted Average Stated Interest Rate And Weighted Average Outstanding Debt [Line Items]
Notes Interest	$ 87	$ 36