Securitization - Schedule of Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024
Variable Interest Entity [Line Items]
Restricted cash and cash equivalents	$ 4,870	$ 1,516
Other current assets	456,816	288,068
Securitized intangible asset, net	80,580	82,844
Current maturities of securitized long-term debt	8,207	8,207
Securitized long-term debt	76,871	76,871
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Restricted cash and cash equivalents	4,870	1,516
Other current assets	12	3
Securitized intangible asset, net	80,580	82,844
Accrued interest	1,462	365
Current maturities of securitized long-term debt	8,207	8,207
Securitized long-term debt	$ 76,871	$ 76,871