Finance Receivables - Information regarding delinquency rates with respect to contracts and direct loans (Details 4) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	$ 8,319
Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	62,664
Finance Receivables
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	0	$ 127,482
Finance Receivables | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	0	18,654
Total	$ 1,561	$ 3,176
Total (in percentage)	18.76%	17.03%
Finance Receivables | Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Balance Outstanding	$ 0	$ 108,828
Total	$ 11,484	$ 17,055
Total (in percentage)	18.33%	15.67%
Finance Receivables | 30 - 59 days | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 1,050	$ 1,448
Total (in percentage)	12.62%	7.76%
Finance Receivables | 30 - 59 days | Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 7,741	$ 10,083
Total (in percentage)	12.35%	9.27%
Finance Receivables | 60 - 89 days | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 310	$ 654
Total (in percentage)	3.73%	3.51%
Finance Receivables | 60 - 89 days | Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 2,390	$ 3,274
Total (in percentage)	3.81%	3.01%
Finance Receivables | 90 - 119 days | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total	$ 201	$ 1,074
Total (in percentage)	2.42%	5.76%
Finance Receivables | 90 - 119 days | Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total	$ 1,353	$ 3,698
Total (in percentage)	2.16%	3.40%
Finance Receivables | Over 120 days | Direct Loans
Accounts Notes And Loans Receivable [Line Items]
Total (in percentage)	0.00%	0.00%
Finance Receivables | Over 120 days | Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total (in percentage)	0.00%	0.00%