Segment Information - Reconciliation of Segment Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Pawn loans	$ 198,463	$ 169,242
Pawn service charges receivable, net	38,318	31,548
Inventory, net	166,997	154,411
Total assets	1,246,920	1,024,363
Operating Segments | U.S. Pawn
Segment Reporting Information [Line Items]
Pawn loans	154,986	148,124
Pawn service charges receivable, net	29,961	28,258
Inventory, net	135,154	132,549
Total assets	627,754	611,489
Operating Segments | Latin America Pawn
Segment Reporting Information [Line Items]
Pawn loans	43,477	21,118
Pawn service charges receivable, net	8,357	3,290
Inventory, net	31,843	21,859
Total assets	188,581	82,813
Other assets not identified in table above	199,100
Operating Segments | Other International
Segment Reporting Information [Line Items]
Pawn loans	0	0
Pawn service charges receivable, net	0	0
Inventory, net	0	3
Total assets	56,776	50,462
Corporate
Segment Reporting Information [Line Items]
Pawn loans	0	0
Pawn service charges receivable, net	0	0
Inventory, net	0	0
Total assets	$ 373,809	$ 279,599