Strategic Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022	Jan. 02, 2026	Jan. 01, 2026
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	$ 1,166	$ 1,505	$ 2,989	$ 2,980
Cash Converters International Limited
Schedule of Equity Method Investments [Line Items]
Ownership percentage	43.70%		43.70%
Shares purchased (in shares)			35,780,747
Purchase amount			$ 7,100
Shares owned (in shares)	309,719,904		309,719,904
Loans repaid			$ 1,800	1,900
Income from equity method investments	$ 1,000	$ 1,900	$ 2,900	$ 3,500
Founders One LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment					$ 15,000	$ 15,000	$ 15,000
Total assets						$ 15,000		$ 15,000
Equity securities, fair value					$ 45,000			$ 15,000	$ 46,600