Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2023
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Line of credit facility amendment costs			$ 100
Net change in unrealized depreciation on debt			(7)	$ (4,842)
Long-Term Credit Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Line of credit facility amendment costs	$ 100	$ 0		0
Net change in unrealized(depreciation ) appreciation on debt	$ 100	$ (5,800)	100	$ (4,800)
Prior Credit Facility
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Net change in unrealized depreciation on debt			$ 100		$ 0