Supplemental Consolidated Financial Information - Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Gross pawn service charges receivable	$ 42,335	$ 44,192	$ 35,886
Allowance for uncollectible pawn service charges receivable	(9,219)	(10,716)	(7,567)
Pawn service charges receivable, net	33,116	33,476	28,319
Gross inventory	153,348	153,673	123,944
Inventory reserves	(3,051)	(2,058)	(4,054)
Inventory, net	150,297	151,615	119,890
Prepaid expenses and other	7,677	8,336	10,245
Accounts receivable, notes receivable and other	27,817	8,435	8,255
Income taxes prepaid and receivable	10,070	17,923	8,767
Prepaid expenses and other current assets	45,564	34,694	27,267
Property and equipment, gross	325,458	306,667	293,087
Accumulated depreciation	(265,683)	(249,942)	(242,213)
Property and equipment, net	59,775	56,725	50,874
Accounts payable	18,443	24,056	17,756
Accrued payroll	8,842	8,365	8,631
Incentive accrual	8,997	17,403	8,196
Other payroll related expenses	8,351	9,592	7,877
Accrued sales and VAT taxes	6,949	7,279	8,022
Accrued income taxes payable	3,662	2,663	4,346
Other current liabilities	17,451	15,151	14,867
Accounts payable, accrued expenses and other current liabilities	$ 72,695	$ 84,509	$ 69,695