Strategic Investments - Additional Information (Details) - USD ($) $ in Thousands		1 Months Ended			3 Months Ended		6 Months Ended
	Dec. 02, 2022	Nov. 30, 2022	Apr. 30, 2022	Oct. 31, 2021	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Schedule of Equity Method Investments [Line Items]
Dividends from unconsolidated affiliates							$ 1,775	$ 1,660
Equity in net income (loss) of unconsolidated affiliates					$ 32,501	$ 1,439	30,917	$ 301
Cash Converters International Limited
Schedule of Equity Method Investments [Line Items]
Dividends from unconsolidated affiliates		$ 1,800	$ 1,700	$ 1,700
Equity in net income (loss) of unconsolidated affiliates					32,500
Non-cash goodwill impairment charge					32,400
Founders One LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment	$ 15,000
Notes payable	$ 15,000
Equity securities, fair value					$ 30,000		$ 30,000
Simple Management Group, Inc | Founders One LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment				$ 15,000