Supplemental Consolidated Financial Information and Discontinued Operations - Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Gross pawn service charges receivable	$ 49,629	$ 42,117
Allowance for uncollectible pawn service charges receivable	(11,311)	(10,569)
Pawn service charges receivable, net	38,318	31,548
Gross inventory	176,198	161,212
Inventory reserves	(9,201)	(6,801)
Inventory, net	166,997	154,411
Prepaid expenses and other	9,402	9,250
Accounts receivable and other	20,933	19,515
Restricted cash	267	0
2019 Convertible Notes Hedges	2,552	0
Prepaid expenses and other current assets	33,154	28,765
Property and equipment, gross	253,022	224,240
Accumulated depreciation	(179,373)	(166,281)
Property and equipment, net	73,649	57,959
Trade accounts payable	10,500	13,064
Accrued payroll	6,294	4,860
Bonus accrual	12,406	9,010
Other payroll related expenses	2,963	3,922
Accrued interest	3,835	2,212
Accrued rent and property taxes	12,106	11,357
Deferred revenues	2,661	2,483
Other accrued expenses	4,064	8,310
Income taxes payable	1,161	1,465
Unrecognized tax benefits	1,810	4,860
Account payable, accrued expenses and other current liabilities	57,800	61,543
Unrecognized tax benefits, non-current	1,148	1,758
Other long-term liabilities	5,742	5,297
Other long-term liabilities	$ 6,890	$ 7,055