Consolidated Schedule of Investments - Derivatives, Interest Rate Swap - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Schedule of Investments [Line Items]
Derivative assets at fair value	$ 18,216	$ 24,182
Derivative liabilities at fair value	4,577	0
Interest rate swap
Schedule of Investments [Line Items]
Derivative assets at fair value	1,913	19,471
Derivative liabilities at fair value	5,940	0
Fair Value	(4,027)	19,471
Interest Rate Swap, Maturing July 2029
Schedule of Investments [Line Items]
Derivative assets at fair value	0
Derivative liabilities at fair value	1,490	0
Interest Rate Swap, Maturing July 2030
Schedule of Investments [Line Items]
Derivative assets at fair value	0
Derivative liabilities at fair value	$ 4,450	$ 0
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 15, 2030
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)		6.19%
Floating interest rate (as a percent)		2.4926%
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 15th, 2030
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)	6.19%
Floating interest rate (as a percent)	2.4926%
Notional Amount	$ 400,000	$ 400,000
Derivative assets at fair value	$ (4,450)	$ 4,038
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 23, 2029
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)		6.50%
Floating interest rate (as a percent)		2.5954%
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 23rd, 2029
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)	6.50%
Floating interest rate (as a percent)	2.5954%
Notional Amount	$ 400,000	$ 400,000
Derivative assets at fair value	$ (1,490)	$ 6,493
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, November 14, 2028
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)		8.40%
Floating interest rate (as a percent)		4.0405%
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, November 14th, 2028
Schedule of Investments [Line Items]
Derivative interest rate (as a percent)	8.40%
Floating interest rate (as a percent)	4.0405%
Notional Amount	$ 350,000	$ 350,000
Derivative assets at fair value	$ 1,913	$ 8,940