Supplemental Consolidated Financial Information - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Allowance for valuation of inventory
Valuation and Qualifying Accounts
Balance at Beginning of Period	$ 9,737	$ 9,201	$ 6,801
Charged to Expense	2,577	536	2,400
Charged to Revenue	0	0	0
Deductions	0	0	0
Balance at End of Period	12,314	9,737	9,201
Allowance for uncollectible pawn service charges receivable
Valuation and Qualifying Accounts
Balance at Beginning of Period	10,036	9,760	9,129
Charged to Expense	0	0	0
Charged to Revenue	0	276	631
Deductions	3,357	0	0
Balance at End of Period	6,679	10,036	9,760
Allowance for uncollectible consumer loan fees and interest receivable
Valuation and Qualifying Accounts
Balance at Beginning of Period	540	331	283
Charged to Expense	0	0	0
Charged to Revenue	0	209	48
Deductions	540	0	0
Balance at End of Period	0	540	331
Allowance for valuation of deferred tax assets
Valuation and Qualifying Accounts
Balance at Beginning of Period	18,094	20,254	17,860
Charged to Expense	430	0	2,394
Charged to Revenue	0	0	0
Deductions	0	2,160	0
Balance at End of Period	$ 18,524	$ 18,094	$ 20,254