Derivative Instruments - Schedule of Interest Rate Swaps (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross Amount of Recognized Assets	$ 18,216	$ 24,182
Gross Amount of Recognized Liabilities	4,577	0
Interest rate swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross Amount of Recognized Assets	1,913	19,471
Gross Amount of Recognized Liabilities	5,940	0
Interest rate swap, maturing november 2028
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross Amount of Recognized Liabilities	0	0
Interest Rate Swap, Maturing July 2029
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross Amount of Recognized Assets	0
Gross Amount of Recognized Liabilities	1,490	0
Interest Rate Swap, Maturing July 2030
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gross Amount of Recognized Assets	0
Gross Amount of Recognized Liabilities	4,450	0
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 15th, 2030
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	400,000	400,000
Gross Amount of Recognized Assets	(4,450)	4,038
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, July 23rd, 2029
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	400,000	400,000
Gross Amount of Recognized Assets	(1,490)	6,493
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, November 14th, 2028
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Amount	350,000	350,000
Gross Amount of Recognized Assets	$ 1,913	$ 8,940