Segment Information - Operating Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Revenues:
Total revenues	$ 258,423	$ 215,982	$ 522,750	$ 436,976
Gross profit	149,182	128,928	301,679	261,039
Segment and corporate expenses (income):
Store expenses	101,269	85,743	202,072	172,514
General and administrative	15,609	12,227	31,085	27,772
Depreciation and amortization	7,963	7,450	15,951	15,024
Loss (gain) loss on sale or disposal of assets	73	(697)	57	(692)
Other	(2,465)	0	(2,465)	0
Interest expense	3,390	2,527	9,580	4,958
Interest income	(1,898)	(255)	(2,562)	(559)
Equity in net income (loss) of unconsolidated affiliates	32,501	1,439	30,917	301
Other (income) expense	80	371	(154)	251
(Loss) income before income taxes	(7,340)	20,123	17,198	41,470
Segments
Revenues:
Total revenues	258,423	215,982	522,750	436,976
Gross profit	149,182	128,928	301,679	261,039
Segment and corporate expenses (income):
Store expenses	101,269	85,743	202,072	172,514
General and administrative	0	0	(3)	0
Depreciation and amortization	4,892	4,516	9,862	9,166
Loss (gain) loss on sale or disposal of assets	73	(9)	57	(4)
Other	(2,465)		(2,465)
Interest expense	0	0	0	0
Interest income	(299)	(255)	(468)	(437)
Equity in net income (loss) of unconsolidated affiliates	32,501	1,439	30,917	301
Other (income) expense	(40)	342	34	196
(Loss) income before income taxes	13,251	37,152	61,673	79,303
Segments | U.S. Pawn
Revenues:
Total revenues	188,531	162,340	383,356	325,977
Gross profit	112,338	100,929	227,691	202,759
Segment and corporate expenses (income):
Store expenses	71,946	64,492	145,250	129,181
General and administrative	0	0	0	0
Depreciation and amortization	2,560	2,625	5,315	5,295
Loss (gain) loss on sale or disposal of assets	81	0	84	0
Other	0		0
Interest expense	0	0	0	0
Interest income	(1)	0	(1)	0
Equity in net income (loss) of unconsolidated affiliates	0	0	0	0
Other (income) expense	0	0	0	0
(Loss) income before income taxes	37,752	33,812	77,043	68,283
Segments | Latin America Pawn
Revenues:
Total revenues	69,882	53,613	139,362	110,927
Gross profit	36,834	27,970	73,956	58,208
Segment and corporate expenses (income):
Store expenses	29,323	21,251	56,822	43,333
General and administrative	0	0	(3)	0
Depreciation and amortization	2,332	1,891	4,547	3,871
Loss (gain) loss on sale or disposal of assets	(8)	(9)	(27)	(4)
Other	(2,465)		(2,465)
Interest expense	0	0	0	0
Interest income	(298)	(255)	(467)	(437)
Equity in net income (loss) of unconsolidated affiliates	0	0	0	0
Other (income) expense	(46)	334	24	200
(Loss) income before income taxes	7,996	4,758	15,525	11,245
Segments | Other Investments
Revenues:
Total revenues	10	29	32	72
Gross profit	10	29	32	72
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
Loss (gain) loss on sale or disposal of assets	0	0	0	0
Other	0		0
Interest expense	0	0	0	0
Interest income	0	0	0	0
Equity in net income (loss) of unconsolidated affiliates	32,501	1,439	30,917	301
Other (income) expense	6	8	10	(4)
(Loss) income before income taxes	(32,497)	(1,418)	(30,895)	(225)
Corporate Items
Revenues:
Total revenues	0	0	0	0
Gross profit	0	0	0	0
Segment and corporate expenses (income):
Store expenses	0	0	0	0
General and administrative	15,609	12,227	31,088	27,772
Depreciation and amortization	3,071	2,934	6,089	5,858
Loss (gain) loss on sale or disposal of assets	0	(688)	0	(688)
Other	0		0
Interest expense	3,390	2,527	9,580	4,958
Interest income	(1,599)	0	(2,094)	(122)
Equity in net income (loss) of unconsolidated affiliates	0	0	0	0
Other (income) expense	120	29	(188)	55
(Loss) income before income taxes	(20,591)	(17,029)	(44,475)	(37,833)
Merchandise sales
Revenues:
Total revenues	152,507	133,556	316,294	271,276
Cost of goods sold	97,339	82,246	202,216	165,357
Merchandise sales | Segments
Revenues:
Total revenues	152,507	133,556	316,294	271,276
Cost of goods sold	97,339	82,246	202,216	165,357
Merchandise sales | Segments | U.S. Pawn
Revenues:
Total revenues	108,740	100,064	227,054	202,142
Cost of goods sold	67,643	58,613	140,899	116,445
Merchandise sales | Segments | Latin America Pawn
Revenues:
Total revenues	43,767	33,492	89,240	69,134
Cost of goods sold	29,696	23,633	61,317	48,912
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	12,825	5,690	20,709	12,634
Cost of goods sold	11,902	4,808	18,855	10,580
Jewelry scrapping sales | Segments
Revenues:
Total revenues	12,825	5,690	20,709	12,634
Cost of goods sold	11,902	4,808	18,855	10,580
Jewelry scrapping sales | Segments | U.S. Pawn
Revenues:
Total revenues	9,814	3,480	16,990	8,460
Cost of goods sold	8,550	2,798	14,766	6,773
Jewelry scrapping sales | Segments | Latin America Pawn
Revenues:
Total revenues	3,011	2,210	3,719	4,174
Cost of goods sold	3,352	2,010	4,089	3,807
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	93,030	76,683	185,623	152,708
Pawn service charges | Segments
Revenues:
Total revenues	93,030	76,683	185,623	152,708
Pawn service charges | Segments | U.S. Pawn
Revenues:
Total revenues	69,945	58,772	139,255	115,329
Pawn service charges | Segments | Latin America Pawn
Revenues:
Total revenues	23,085	17,911	46,368	37,379
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
Revenues:
Total revenues	61	53	124	358
Other revenues | Segments
Revenues:
Total revenues	61	53	124	358
Other revenues | Segments | U.S. Pawn
Revenues:
Total revenues	32	24	57	46
Other revenues | Segments | Latin America Pawn
Revenues:
Total revenues	19	0	35	240
Other revenues | Segments | Other Investments
Revenues:
Total revenues	10	29	32	72
Other revenues | Corporate Items
Revenues:
Total revenues	$ 0	$ 0	$ 0	$ 0