Securitization - Schedule of Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Sep. 30, 2024
Variable Interest Entity [Line Items]
Restricted cash and cash equivalents	$ 1,616	$ 1,516
Other current assets	288,275	288,068
Securitized intangible asset, net	78,892	82,844
Current maturities of securitized long-term debt	8,418	8,207
Securitized long-term debt	72,609	76,871
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Restricted cash and cash equivalents	1,616	1,516
Other current assets	3	3
Securitized intangible asset, net	78,892	82,844
Accrued interest	348	365
Current maturities of securitized long-term debt	8,418	8,207
Securitized long-term debt	$ 72,609	$ 76,871