Supplemental Consolidated Financial Information - Schedule of Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Sep. 30, 2024	Mar. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross pawn service charges receivable	$ 54,024	$ 57,544	$ 48,812
Allowance for uncollectible pawn service charges receivable	(11,701)	(13,531)	(10,544)
Pawn service charges receivable, net	42,323	44,013	38,268
Gross inventory	211,191	194,657	166,557
Inventory reserves	(3,408)	(2,734)	(3,128)
Inventory, net	207,783	191,923	163,429
Prepaid expenses and other	3,740	3,350	8,846
Income taxes prepaid and receivable	3,056	3,007	4,447
Prepaid expenses and other current assets	40,283	39,171	47,142
Property and equipment, gross	284,008	280,714	281,239
Accumulated depreciation	(219,858)	(214,741)	(217,933)
Property and equipment, net	64,150	65,973	63,306
Accounts payable	14,927	20,850	11,413
Accrued payroll	15,538	13,541	12,176
Incentive accrual	9,554	19,883	9,454
Other payroll related expenses	4,132	3,999	5,178
Accrued sales and VAT taxes	4,035	3,954	5,111
Accrued income taxes payable	4,938	5,934	3,014
Other current liabilities	17,719	17,576	16,492
Accounts payable, accrued expenses and other current liabilities	70,843	85,737	62,838
Accounts receivable and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	15,912	16,482	14,875
Notes receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable	$ 17,575	$ 16,332	$ 18,974