Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance contracts maximum funding period	30 days
Total accounts receivable	$ 61,437	$ 73,820
Less – allowance for credit losses	(552)	(551)
Total accounts receivable, net	60,885	73,269
Trade accounts receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	29,642	32,578
Contracts in transit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	17,942	20,437
Manufacturer receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	10,903	11,435
Income tax receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 2,950	$ 9,370