Subsequent Events (Details) - USD ($)							1 Months Ended	6 Months Ended
	May 03, 2022	Apr. 14, 2022	Apr. 05, 2022	Mar. 10, 2022	Oct. 14, 2021	Oct. 01, 2021	Dec. 31, 2019	Mar. 31, 2022	Mar. 31, 2021
Subsequent Event [Line Items]
Stock repurchase program, period (in years)							3 years
Dividends from unconsolidated affiliates								$ 1,660,000	$ 0
Class A Common Stock
Subsequent Event [Line Items]
Stock repurchase program, amount authorized							$ 60,000,000
Subsequent Event
Subsequent Event [Line Items]
Number of additional shares acquired (in shares)			13,000,000
Equity method investment, number of common shares owned			255,239,157
Equity method of accounting ownership percentage			40.67%
Subsequent Event | Class A Common Stock
Subsequent Event [Line Items]
Stock repurchase program, amount authorized	$ 50,000,000
Stock repurchase program, period (in years)	3 years
Cash Converters International Limited
Subsequent Event [Line Items]
Number of additional shares acquired (in shares)				5,500,000		13,000,000
Payments to acquire equity method investment				$ 1,000,000		$ 2,500,000
Equity method investment, number of common shares owned				242,239,157		236,702,991
Equity method of accounting ownership percentage				38.60%		37.72%
Dividends from unconsolidated affiliates					$ 1,700,000
Cash Converters International Limited | Subsequent Event
Subsequent Event [Line Items]
Number of additional shares acquired (in shares)			13,000,000
Payments to acquire equity method investment			$ 2,500,000
Equity method investment, number of common shares owned			255,239,157
Equity method of accounting ownership percentage			40.67%
Dividends from unconsolidated affiliates		$ 1,800,000	$ 1,800,000