Segment Information - Operating Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			3
Revenues:
Total revenues	$ 215,982	$ 184,939	$ 436,976	$ 363,074
Net revenues	128,928	113,748	261,039	222,138
Segment and corporate expenses (income):
Store expenses	85,743	81,149	172,514	160,458
General and administrative	12,227	13,771	27,772	26,281
Depreciation and amortization	7,450	8,089	15,024	15,661
(Gain) loss on sale or disposal of assets and other	(697)	112	(692)	90
Interest expense	2,527	5,518	4,958	10,973
Interest income	(255)	(585)	(559)	(1,406)
Equity in net loss of unconsolidated affiliates	1,439	(1,250)	301	(1,766)
Other expense	371	145	251	(454)
Income before income taxes	20,123	6,799	41,470	12,301
Segments
Revenues:
Total revenues	215,982	184,939	436,976	363,074
Net revenues	128,928	113,748	261,039	222,138
Segment and corporate expenses (income):
Store expenses	85,743	81,149	172,514	160,458
General and administrative	0	0	0	0
Depreciation and amortization	4,516	4,429	9,166	9,025
(Gain) loss on sale or disposal of assets and other	(9)	101	(4)	27
Interest expense	0	0	0	0
Interest income	(255)	(571)	(437)	(1,335)
Equity in net loss of unconsolidated affiliates	1,439	(1,250)	301	(1,766)
Other expense	342	94	196	(571)
Income before income taxes	37,152	29,796	79,303	56,300
Segments | U.S. Pawn
Revenues:
Total revenues	162,340	147,014	325,977	283,513
Net revenues	100,929	92,053	202,759	177,649
Segment and corporate expenses (income):
Store expenses	64,492	63,657	129,181	125,749
General and administrative	0	0	0	0
Depreciation and amortization	2,625	2,636	5,295	5,372
(Gain) loss on sale or disposal of assets and other	0	0	0	27
Interest expense	0	0	0	0
Interest income	0	0	0	0
Equity in net loss of unconsolidated affiliates	0	0	0	0
Other expense	0	0	0	0
Income before income taxes	33,812	25,760	68,283	46,501
Segments | Latin America Pawn
Revenues:
Total revenues	53,613	37,751	110,927	79,312
Net revenues	27,970	21,521	58,208	44,240
Segment and corporate expenses (income):
Store expenses	21,251	17,492	43,333	34,709
General and administrative	0	0	0	0
Depreciation and amortization	1,891	1,793	3,871	3,653
(Gain) loss on sale or disposal of assets and other	(9)	101	(4)	0
Interest expense	0	0	0	0
Interest income	(255)	(571)	(437)	(1,335)
Equity in net loss of unconsolidated affiliates	0	0	0	0
Other expense	334	85	200	(370)
Income before income taxes	4,758	2,621	11,245	7,583
Segments | Other Investments
Revenues:
Total revenues	29	174	72	249
Net revenues	29	174	72	249
Segment and corporate expenses (income):
Store expenses	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
(Gain) loss on sale or disposal of assets and other	0	0	0	0
Interest expense	0	0	0	0
Interest income	0	0	0	0
Equity in net loss of unconsolidated affiliates	1,439	(1,250)	301	(1,766)
Other expense	8	9	(4)	(201)
Income before income taxes	(1,418)	1,415	(225)	2,216
Corporate Items
Revenues:
Total revenues	0	0	0	0
Net revenues	0	0	0	0
Segment and corporate expenses (income):
Store expenses	0	0	0	0
General and administrative	12,227	13,771	27,772	26,281
Depreciation and amortization	2,934	3,660	5,858	6,636
(Gain) loss on sale or disposal of assets and other	(688)	11	(688)	63
Interest expense	2,527	5,518	4,958	10,973
Interest income	0	(14)	(122)	(71)
Equity in net loss of unconsolidated affiliates	0	0	0	0
Other expense	29	51	55	117
Income before income taxes	(17,029)	(22,997)	(37,833)	(43,999)
Merchandise sales
Revenues:
Total revenues	133,556	115,225	271,276	223,008
Cost of goods sold	82,246	65,790	165,357	130,333
Merchandise sales | Segments
Revenues:
Total revenues	133,556	115,225	271,276	223,008
Cost of goods sold	82,246	65,790	165,357	130,333
Merchandise sales | Segments | U.S. Pawn
Revenues:
Total revenues	100,064	93,827	202,142	176,080
Cost of goods sold	58,613	51,812	116,445	99,871
Merchandise sales | Segments | Latin America Pawn
Revenues:
Total revenues	33,492	21,398	69,134	46,928
Cost of goods sold	23,633	13,978	48,912	30,462
Merchandise sales | Segments | Other Investments
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Merchandise sales | Corporate Items
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Jewelry scrapping sales
Revenues:
Total revenues	5,690	6,075	12,634	12,834
Cost of goods sold	4,808	5,401	10,580	10,603
Jewelry scrapping sales | Segments
Revenues:
Total revenues	5,690	6,075	12,634	12,834
Cost of goods sold	4,808	5,401	10,580	10,603
Jewelry scrapping sales | Segments | U.S. Pawn
Revenues:
Total revenues	3,480	3,581	8,460	7,585
Cost of goods sold	2,798	3,149	6,773	5,993
Jewelry scrapping sales | Segments | Latin America Pawn
Revenues:
Total revenues	2,210	2,494	4,174	5,249
Cost of goods sold	2,010	2,252	3,807	4,610
Jewelry scrapping sales | Segments | Other Investments
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Jewelry scrapping sales | Corporate Items
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Pawn service charges
Revenues:
Total revenues	76,683	63,436	152,708	126,925
Pawn service charges | Segments
Revenues:
Total revenues	76,683	63,436	152,708	126,925
Pawn service charges | Segments | U.S. Pawn
Revenues:
Total revenues	58,772	49,577	115,329	99,797
Pawn service charges | Segments | Latin America Pawn
Revenues:
Total revenues	17,911	13,859	37,379	27,128
Pawn service charges | Segments | Other Investments
Revenues:
Total revenues	0	0	0	0
Pawn service charges | Corporate Items
Revenues:
Total revenues	0	0	0	0
Other revenues, net
Revenues:
Total revenues	53	203	358	307
Cost of goods sold				0
Other revenues, net | Segments
Revenues:
Total revenues	53	203	358	307
Cost of goods sold				0
Other revenues, net | Segments | U.S. Pawn
Revenues:
Total revenues	24	29	46	51
Cost of goods sold				0
Other revenues, net | Segments | Latin America Pawn
Revenues:
Total revenues	0	0	240	7
Cost of goods sold				0
Other revenues, net | Segments | Other Investments
Revenues:
Total revenues	29	174	72	249
Cost of goods sold
Other revenues, net | Corporate Items
Revenues:
Total revenues	$ 0	$ 0	$ 0	0
Cost of goods sold				$ 0