Supplemental Consolidated Financial Information - Schedule of Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross pawn service charges receivable	$ 57,359	$ 57,544	$ 50,919
Allowance for uncollectible pawn service charges receivable	(12,161)	(13,531)	(10,917)
Pawn service charges receivable, net	45,198	44,013	40,002
Gross inventory	202,529	194,657	167,660
Inventory reserves	(3,048)	(2,734)	(2,733)
Inventory, net	199,481	191,923	164,927
Prepaid expenses and other	4,218	3,350	6,868
Income taxes prepaid and receivable	1,475	3,007	3,101
Prepaid expenses and other current assets	36,562	39,171	44,001
Property and equipment, gross	280,953	280,714	352,291
Accumulated depreciation	(217,722)	(214,741)	(283,293)
Property and equipment, net	63,231	65,973	68,998
Accounts payable	14,822	20,850	18,200
Accrued payroll	9,694	13,541	7,682
Incentive accrual	6,139	19,883	6,859
Other payroll related expenses	5,525	3,999	7,849
Accrued sales and VAT taxes	4,782	3,954	6,089
Accrued income taxes payable	13,600	5,934	9,068
Other current liabilities	14,120	17,576	13,639
Accounts payable, accrued expenses and other current liabilities	68,682	85,737	69,386
Accounts receivable and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	13,945	16,482	15,699
Notes receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	$ 16,924	$ 16,332	$ 18,333