Segment Information - Schedule of Operating Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Total revenues	$ 1,161,602	$ 1,049,041	$ 886,225
Gross profit	682,273	609,838	528,147
Segment and corporate expenses (income):
Store expenses	461,055	418,574	357,417
General and administrative	75,557	67,529	64,342
Impairment of other assets	843	4,343	0
Depreciation and amortization	33,069	32,131	32,140
Loss (gain) on sale or disposal of assets and other	(16)	208	(674)
Other operating income	(765)	(5,097)
Interest expense	13,585	16,456	9,972
Interest income	(10,575)	(7,470)	(817)
Equity in net (income) loss of unconsolidated affiliates	(4,711)	28,459	(1,779)
Other income	(1,377)	3,072	(167)
Income before income taxes	115,608	51,633	67,713
Operating Segments
Revenues:
Total revenues	1,161,602	1,049,041	886,225
Gross profit	682,273	609,838	528,147
Segment and corporate expenses (income):
Store expenses	461,055	418,574	357,417
General and administrative	0	(3)	0
Impairment of other assets	0	0
Depreciation and amortization	19,012	19,573	18,465
Loss (gain) on sale or disposal of assets and other	(137)	(174)	14
Other operating income	0	(5,097)
Interest expense	0	0	0
Interest income	(4,034)	(2,641)	(817)
Equity in net (income) loss of unconsolidated affiliates	(4,993)	28,459	(1,779)
Other income	(211)	(100)	(96)
Income before income taxes	211,581	151,247	154,943
Operating Segments | U.S. Pawn
Revenues:
Total revenues	836,083	761,921	658,762
Gross profit	501,263	456,338	405,766
Segment and corporate expenses (income):
Store expenses	325,816	299,319	266,114
General and administrative	0	0	0
Impairment of other assets	0	0
Depreciation and amortization	10,147	10,382	10,552
Loss (gain) on sale or disposal of assets and other	3	115	51
Other operating income	0	0
Interest expense	0	0	0
Interest income	0	(2)	(2)
Equity in net (income) loss of unconsolidated affiliates	0	0	0
Other income	7	0	0
Income before income taxes	165,290	146,524	129,051
Operating Segments | Latin America Pawn
Revenues:
Total revenues	325,484	287,065	227,352
Gross profit	180,975	153,445	122,270
Segment and corporate expenses (income):
Store expenses	135,239	119,255	91,303
General and administrative	0	(3)	0
Impairment of other assets	0	0
Depreciation and amortization	8,865	9,191	7,913
Loss (gain) on sale or disposal of assets and other	(140)	(289)	(37)
Other operating income	0	(5,097)
Interest expense	0	0	0
Interest income	(1,612)	(1,139)	(815)
Equity in net (income) loss of unconsolidated affiliates	0	0	0
Other income	(218)	(131)	(148)
Income before income taxes	38,841	31,658	24,054
Operating Segments | Other Investments
Revenues:
Total revenues	35	55	111
Gross profit	35	55	111
Segment and corporate expenses (income):
Store expenses	0	0	0
General and administrative	0	0	0
Impairment of other assets	0	0
Depreciation and amortization	0	0	0
Loss (gain) on sale or disposal of assets and other	0	0	0
Other operating income	0	0
Interest expense	0	0	0
Interest income	(2,422)	(1,500)	0
Equity in net (income) loss of unconsolidated affiliates	(4,993)	28,459	(1,779)
Other income	0	31	52
Income before income taxes	7,450	(26,935)	1,838
Corporate Items
Revenues:
Total revenues	0	0	0
Gross profit	0	0	0
Segment and corporate expenses (income):
Store expenses	0	0	0
General and administrative	75,557	67,532	64,342
Impairment of other assets	843	4,343
Depreciation and amortization	14,057	12,558	13,675
Loss (gain) on sale or disposal of assets and other	121	382	(688)
Other operating income	(765)	0
Interest expense	13,585	16,456	9,972
Interest income	(6,541)	(4,829)	0
Equity in net (income) loss of unconsolidated affiliates	282	0	0
Other income	(1,166)	3,172	(71)
Income before income taxes	(95,973)	(99,614)	(87,230)
Merchandise sales
Revenues:
Total revenues	663,736	615,446	532,886
Cost of goods sold	427,403	394,779	329,382
Merchandise sales | Operating Segments
Revenues:
Total revenues	663,736	615,446	532,886
Cost of goods sold	427,403	394,779	329,382
Merchandise sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	459,251	432,578	391,958
Cost of goods sold	288,894	267,874	230,241
Merchandise sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	204,485	182,868	140,928
Cost of goods sold	138,509	126,905	99,141
Merchandise sales | Operating Segments | Other Investments
Revenues:
Total revenues	0	0	0
Cost of goods sold	0	0	0
Merchandise sales | Corporate Items
Revenues:
Total revenues	0	0	0
Cost of goods sold	0	0	0
Jewelry scrapping sales
Revenues:
Total revenues	61,082	49,528	32,033
Cost of goods sold	51,926	44,424	28,696
Jewelry scrapping sales | Operating Segments
Revenues:
Total revenues	61,082	49,528	32,033
Cost of goods sold	51,926	44,424	28,696
Jewelry scrapping sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	54,344	43,305	25,739
Cost of goods sold	45,926	37,709	22,755
Jewelry scrapping sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	6,738	6,223	6,294
Cost of goods sold	6,000	6,715	5,941
Jewelry scrapping sales | Operating Segments | Other Investments
Revenues:
Total revenues	0	0	0
Cost of goods sold	0	0	0
Jewelry scrapping sales | Corporate Items
Revenues:
Total revenues	0	0	0
Cost of goods sold	0	0	0
Pawn service charges
Revenues:
Total revenues	436,545	383,772	320,865
Pawn service charges | Operating Segments
Revenues:
Total revenues	436,545	383,772	320,865
Pawn service charges | Operating Segments | U.S. Pawn
Revenues:
Total revenues	322,362	285,919	240,982
Pawn service charges | Operating Segments | Latin America Pawn
Revenues:
Total revenues	114,183	97,853	79,883
Pawn service charges | Operating Segments | Other Investments
Revenues:
Total revenues	0	0	0
Pawn service charges | Corporate Items
Revenues:
Total revenues	0	0	0
Other revenues
Revenues:
Total revenues	239	295	441
Other revenues | Operating Segments
Revenues:
Total revenues	239	295	441
Other revenues | Operating Segments | U.S. Pawn
Revenues:
Total revenues	126	119	83
Other revenues | Operating Segments | Latin America Pawn
Revenues:
Total revenues	78	121	247
Other revenues | Operating Segments | Other Investments
Revenues:
Total revenues	35	55	111
Other revenues | Corporate Items
Revenues:
Total revenues	$ 0	$ 0	$ 0