Segment Information - Operating Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Revenues:
Total revenues	$ 281,421	$ 255,812	$ 867,051	$ 778,562
Gross profit	166,727	148,785	506,892	450,464
Segment and corporate expenses (income):
Store expenses	116,335	104,932	341,472	307,004
General and administrative	20,060	17,876	54,869	48,961
Depreciation and amortization	8,158	8,026	24,942	23,977
(Gain) loss on sale or disposal of assets and other	20	(29)	(149)	28
Other income		(2,632)	(765)	(5,097)
Interest expense	3,539	3,414	10,381	12,994
Interest income	(2,931)	(2,584)	(8,452)	(5,146)
Equity in net (income) loss of unconsolidated affiliates	(1,263)	(1,523)	(4,135)	29,394
Other (income) expense	(191)	(5)	(627)	(159)
Income before income taxes	23,000	21,310	89,356	38,508
Operating Segments
Revenues:
Total revenues	281,421	255,812	867,051	778,562
Gross profit	166,727	148,785	506,892	450,464
Segment and corporate expenses (income):
Store expenses	116,335	104,932	341,472	307,004
General and administrative	0	0	0	(3)
Depreciation and amortization	4,498	4,808	14,369	14,670
(Gain) loss on sale or disposal of assets and other	20	(29)	(246)	28
Other income		(2,632)	0	(5,097)
Interest expense	0	0	0	0
Interest income	(975)	(257)	(3,209)	(725)
Equity in net (income) loss of unconsolidated affiliates	(1,406)	(1,523)	(4,278)	29,394
Other (income) expense	(172)	(55)	(204)	(21)
Income before income taxes	48,427	43,541	158,988	105,214
Operating Segments | U.S. Pawn
Revenues:
Total revenues	199,050	184,092	624,062	567,448
Gross profit	119,934	110,192	371,361	337,883
Segment and corporate expenses (income):
Store expenses	81,441	75,389	239,536	220,639
General and administrative	0	0	0	0
Depreciation and amortization	2,408	2,505	7,548	7,820
(Gain) loss on sale or disposal of assets and other	(2)	0	(6)	84
Other income		0	0	0
Interest expense	0	0	0	0
Interest income	0	(1)	0	(2)
Equity in net (income) loss of unconsolidated affiliates	0	0	0	0
Other (income) expense	0	0	0	0
Income before income taxes	36,087	32,299	124,283	109,342
Operating Segments | Latin America Pawn
Revenues:
Total revenues	82,371	71,705	242,954	211,067
Gross profit	46,793	38,578	135,496	112,534
Segment and corporate expenses (income):
Store expenses	34,894	29,543	101,936	86,365
General and administrative	0	0	0	(3)
Depreciation and amortization	2,090	2,303	6,821	6,850
(Gain) loss on sale or disposal of assets and other	22	(29)	(240)	(56)
Other income		(2,632)	0	(5,097)
Interest expense	0	0	0	0
Interest income	(370)	(256)	(1,398)	(723)
Equity in net (income) loss of unconsolidated affiliates	0	0	0	0
Other (income) expense	(184)	(65)	(231)	(41)
Income before income taxes	10,341	9,714	28,608	25,239
Operating Segments | Other Investments
Revenues:
Total revenues	0	15	35	47
Gross profit	0	15	35	47
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
Other income		0	0	0
Interest expense	0	0	0	0
Interest income	(605)	0	(1,811)	0
Equity in net (income) loss of unconsolidated affiliates	(1,406)	(1,523)	(4,278)	29,394
Other (income) expense	12	10	27	20
Income before income taxes	1,999	1,528	6,097	(29,367)
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	20,060	17,876	54,869	48,964
Depreciation and amortization	3,660	3,218	10,573	9,307
(Gain) loss on sale or disposal of assets and other	0	0	97	0
Other income		0	(765)	0
Interest expense	3,539	3,414	10,381	12,994
Interest income	(1,956)	(2,327)	(5,243)	(4,421)
Equity in net (income) loss of unconsolidated affiliates	143	0	143	0
Other (income) expense	(19)	50	(423)	(138)
Income before income taxes	(25,427)	(22,231)	(69,632)	(66,706)
Merchandise sales
Revenues:
Total revenues	158,140	147,980	502,230	464,274
Cost of goods sold	101,211	95,069	322,680	297,285
Merchandise sales | Operating Segments
Revenues:
Total revenues	158,140	147,980	502,230	464,274
Cost of goods sold	101,211	95,069	322,680	297,285
Merchandise sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	107,849	102,177	348,211	329,231
Cost of goods sold	67,229	62,799	218,736	203,698
Merchandise sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	50,291	45,803	154,019	135,043
Cost of goods sold	33,982	32,270	103,944	93,587
Merchandise sales | Operating 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	15,395	13,931	43,191	34,640
Cost of goods sold	13,483	11,958	37,479	30,813
Jewelry scrapping sales | Operating Segments
Revenues:
Total revenues	15,395	13,931	43,191	34,640
Cost of goods sold	13,483	11,958	37,479	30,813
Jewelry scrapping sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	13,757	13,098	39,258	30,088
Cost of goods sold	11,887	11,101	33,965	25,867
Jewelry scrapping sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	1,638	833	3,933	4,552
Cost of goods sold	1,596	857	3,514	4,946
Jewelry scrapping sales | Operating 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	107,830	93,819	321,442	279,442
Pawn service charges | Operating Segments
Revenues:
Total revenues	107,830	93,819	321,442	279,442
Pawn service charges | Operating Segments | U.S. Pawn
Revenues:
Total revenues	77,416	68,790	236,499	208,045
Pawn service charges | Operating Segments | Latin America Pawn
Revenues:
Total revenues	30,414	25,029	84,943	71,397
Pawn service charges | Operating 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	56	82	188	206
Other revenues | Operating Segments
Revenues:
Total revenues	56	82	188	206
Other revenues | Operating Segments | U.S. Pawn
Revenues:
Total revenues	28	27	94	84
Other revenues | Operating Segments | Latin America Pawn
Revenues:
Total revenues	28	40	59	75
Other revenues | Operating Segments | Other Investments
Revenues:
Total revenues	0	15	35	47
Other revenues | Corporate Items
Revenues:
Total revenues	$ 0	$ 0	$ 0	$ 0