Segment Information - Schedule of Operating Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Revenues:
Total revenues	$ 446,881	$ 306,316	$ 828,900	$ 626,486
Gross profit	260,038	178,452	483,004	363,856
Segment and corporate expenses (income):
Store expenses	148,119	111,067	274,891	222,003
General and administrative	34,488	25,100	61,231	49,284
Depreciation and amortization	9,588	8,020	18,344	16,355
Loss on sale or disposal of assets and other		17	87	25
Interest expense	8,354	3,281	16,520	6,428
Interest income	(2,587)	(1,875)	(7,401)	(3,968)
Income from equity method investments	1,166	1,505	2,989	2,980
Other (income) expense	(2,244)	(65)	(2,336)	913
Income before income taxes	65,486	34,412	124,657	75,796
Cash Converters International Limited
Segment and corporate expenses (income):
Income from equity method investments	1,000	1,900	2,900	3,500
Operating Segments
Revenues:
Total revenues	446,881	306,316	828,900	626,486
Gross profit	260,038	178,452	483,004	363,856
Segment and corporate expenses (income):
Store expenses	148,119	111,067	274,891	222,003
General and administrative	0	0	0	0
Depreciation and amortization	6,216	4,671	11,474	9,434
Loss on sale or disposal of assets and other		17	87	25
Interest expense	0	0	0	0
Interest income	0	0	0	0
Income from equity method investments	0	0	0	0
Other (income) expense	(305)	(133)	(328)	(215)
Income before income taxes	106,008	62,830	196,880	132,609
Operating Segments | U.S. Pawn
Revenues:
Total revenues	282,176	221,385	551,936	453,586
Gross profit	169,871	133,378	330,580	272,055
Segment and corporate expenses (income):
Store expenses	88,982	81,718	176,148	163,199
General and administrative	0	0	0	0
Depreciation and amortization	2,809	2,682	5,532	5,399
Loss on sale or disposal of assets and other		17	87	17
Interest expense	0	0	0	0
Interest income	0	0	0	0
Income from equity method investments	0	0	0	0
Other (income) expense	0	4	0	(7)
Income before income taxes	78,080	48,957	148,813	103,447
Operating Segments | Latin America Pawn
Revenues:
Total revenues	113,394	84,931	225,653	172,900
Gross profit	64,030	45,074	126,287	91,801
Segment and corporate expenses (income):
Store expenses	42,523	29,349	82,129	58,804
General and administrative	0	0	0	0
Depreciation and amortization	2,733	1,989	5,268	4,035
Loss on sale or disposal of assets and other		0	0	8
Interest expense	0	0	0	0
Interest income	0	0	0	0
Income from equity method investments	0	0	0	0
Other (income) expense	(343)	(137)	(366)	(208)
Income before income taxes	19,117	13,873	39,256	29,162
Operating Segments | SMG
Revenues:
Total revenues	51,311		51,311
Gross profit	26,137		26,137
Segment and corporate expenses (income):
Store expenses	16,614		16,614
General and administrative	0		0
Depreciation and amortization	674		674
Loss on sale or disposal of assets and other			0
Interest expense	0		0
Interest income	0		0
Income from equity method investments	0		0
Other (income) expense	38		38
Income before income taxes	8,811		8,811
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	34,488	25,100	61,231	49,284
Depreciation and amortization	3,372	3,349	6,870	6,921
Loss on sale or disposal of assets and other		0	0	0
Interest expense	8,354	3,281	16,520	6,428
Interest income	(2,587)	(1,875)	(7,401)	(3,968)
Income from equity method investments	1,166	1,505	2,989	2,980
Other (income) expense	(1,939)	68	(2,008)	1,128
Income before income taxes	(40,522)	(28,418)	(72,223)	(56,813)
Interest income from notes receivable		600	1,000	1,200
Corporate Items | Cash Converters International Limited
Segment and corporate expenses (income):
Income from equity method investments		1,900	1,800	3,500
Merchandise sales
Revenues:
Total revenues	214,465	169,467	424,612	355,810
Cost of goods sold	136,788	111,555	269,544	233,379
Merchandise sales | Operating Segments
Revenues:
Total revenues	214,465	169,467	424,612	355,810
Cost of goods sold	136,788	111,555	269,544	233,379
Merchandise sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	127,884	116,915	266,926	245,715
Cost of goods sold	79,647	74,772	165,334	156,328
Merchandise sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	68,762	52,552	139,867	110,095
Cost of goods sold	45,227	36,783	92,296	77,051
Merchandise sales | Operating Segments | SMG
Revenues:
Total revenues	17,819		17,819
Cost of goods sold	11,914		11,914
Merchandise sales | Corporate Items
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Jewelry scrap sales
Revenues:
Total revenues	81,240	20,938	121,149	37,670
Cost of goods sold	50,055	16,309	76,352	29,251
Jewelry scrap sales | Operating Segments
Revenues:
Total revenues	81,240	20,938	121,149	37,670
Cost of goods sold	50,055	16,309	76,352	29,251
Jewelry scrap sales | Operating Segments | U.S. Pawn
Revenues:
Total revenues	55,490	16,898	91,005	32,396
Cost of goods sold	32,658	13,235	56,022	25,203
Jewelry scrap sales | Operating Segments | Latin America Pawn
Revenues:
Total revenues	6,640	4,040	11,034	5,274
Cost of goods sold	4,137	3,074	7,070	4,048
Jewelry scrap sales | Operating Segments | SMG
Revenues:
Total revenues	19,110		19,110
Cost of goods sold	13,260		13,260
Jewelry scrap sales | Corporate Items
Revenues:
Total revenues	0	0	0	0
Cost of goods sold	0	0	0	0
Pawn service charges
Revenues:
Total revenues	151,128	115,871	283,045	232,923
Pawn service charges | Operating Segments
Revenues:
Total revenues	151,128	115,871	283,045	232,923
Pawn service charges | Operating Segments | U.S. Pawn
Revenues:
Total revenues	98,770	87,548	193,944	175,424
Pawn service charges | Operating Segments | Latin America Pawn
Revenues:
Total revenues	37,976	28,323	74,719	57,499
Pawn service charges | Operating Segments | SMG
Revenues:
Total revenues	14,382		14,382
Pawn service charges | Corporate Items
Revenues:
Total revenues	0	0	0	0
Other revenues
Revenues:
Total revenues	48	40	94	83
Other revenues | Operating Segments
Revenues:
Total revenues	48	40	94	83
Other revenues | Operating Segments | U.S. Pawn
Revenues:
Total revenues	32	24	61	51
Other revenues | Operating Segments | Latin America Pawn
Revenues:
Total revenues	16	16	33	32
Other revenues | Operating Segments | SMG
Revenues:
Total revenues	0		0
Other revenues | Corporate Items
Revenues:
Total revenues	$ 0	$ 0	$ 0	$ 0