Finance Receivables - Selected information on entire portfolio of Company (Details) - Contract	9 Months Ended	12 Months Ended
	Dec. 31, 2023	Mar. 31, 2023
Contract Portfolio
Accounts Notes And Loans Receivable [Line Items]
Average APR	22.70%	22.80%
Average discount	6.40%	6.80%
Average term (months)	49 months	49 months
Number of active contracts	9,088	14,081
Direct Loan Portfolio
Accounts Notes And Loans Receivable [Line Items]
Average APR	27.30%	29.10%
Average term (months)	33 months	28 months
Number of active contracts	2,485	5,322