Supplemental Consolidated Financial Information - Schedule of Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross pawn service charges receivable	$ 63,348	$ 57,544
Allowance for uncollectible pawn service charges receivable	(14,615)	(13,531)
Pawn service charges receivable, net	48,733	44,013
Gross inventory	252,049	194,657
Inventory reserves	(3,592)	(2,734)
Inventory, net	248,457	191,923
Prepaid expenses and other	9,429	3,350
Income taxes prepaid and receivable	2,317	3,007
Prepaid expenses and other current assets	51,221	39,171
Accounts payable	22,923	20,850
Accrued payroll	19,063	13,541
Incentive accrual	20,068	19,883
Accrued interest payable	13,763	3,539
Other payroll related expenses	5,704	3,999
Accrued sales and VAT taxes	4,377	3,954
Accrued income taxes payable	5,515	5,934
Other current liabilities	14,030	14,037
Account payable, accrued expenses and other current liabilities	105,443	85,737
Unrecognized tax benefits, non-current	4,067	2,835
Other non-current liabilities	15,702	9,502
Other long-term liabilities	19,769	12,337
Accounts receivable and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	15,106	16,482
Notes receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	$ 24,369	$ 16,332