Strategic Investments - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 28, 2025	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Schedule of Equity Method Investments [Line Items]
Income from equity method investments		$ 1,505	$ 1,719	$ 2,980	$ 2,872
Cash Converters International Limited
Schedule of Equity Method Investments [Line Items]
Shares owned (in shares)		273,939,157		273,939,157
Ownership percentage		43.70%		43.70%
Dividends from unconsolidated affiliates				$ 1,900	1,700
Income from equity method investments		$ 1,900	$ 1,700	3,500	$ 2,900
Cash Converters International Limited | Subsequent Event
Schedule of Equity Method Investments [Line Items]
Dividends from unconsolidated affiliates	$ 1,700
Founders One LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment						$ 15,000	$ 15,000	$ 15,000
Notes receivable, net		15,000		15,000			$ 15,000
Equity securities, fair value		$ 45,000		$ 45,000		$ 45,000