Strategic Investments - Additional Information (Details) - USD ($) $ in Thousands		1 Months Ended					12 Months Ended
	Dec. 02, 2022	Oct. 31, 2023	Apr. 30, 2023	Nov. 30, 2022	Apr. 30, 2022	Oct. 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021	Nov. 02, 2022	Sep. 15, 2022	Apr. 05, 2022	Mar. 10, 2022	Oct. 01, 2021
Schedule of Equity Method Investments [Line Items]
Dividends from unconsolidated affiliates							$ 0	$ 3,366	$ 0
Equity in income (loss) from investment in unconsolidated affiliates							(28,459)	1,779	3,803
Notes receivable, net							$ 0	1,215
Cash Converters International Limited
Schedule of Equity Method Investments [Line Items]
Dividends from unconsolidated affiliates			$ 1,800	$ 1,800	$ 1,700	$ 1,700
Shares owned (in shares)							273,939,157			273,939,157	260,939,157	255,239,157	242,239,157	236,702,991
Ownership percentage							43.70%			43.70%	41.60%	40.70%	38.60%	37.70%
Percentage of ownership increase							30.00%
Equity in income (loss) from investment in unconsolidated affiliates							$ (28,500)	$ 2,900	$ 4,300
Non-cash goodwill impairment charge							32,400
Retained earnings							(16,200)
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
Notes receivable, net	15,000
Equity securities, carrying value							$ 30,000
Founders One LLC | Subsequent event
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment		15,000
Equity securities, carrying value		$ 45,000
Simple Management Group, Inc | Founders One LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity investment						$ 15,000
Notes receivable, net	$ 15,000