Acquired Card Receivables - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Acquired Card Receivables [Line Items]
Acquired card receivable as collateral	$ 115.8
Card transactions disputed, loss	4.3	$ 0.0
Authorized transactions but not cleared	$ 55.2
Grace period to payment on acquired card receivables	5 days
Acquired card receivables, minimum number of past due days to accrue fees	90 days
Card receivables acquired during the period	$ 6,600.0	370.6
Prepaid Expenses and Other Current Assets
Acquired Card Receivables [Line Items]
Card receivables held for sale, amount	$ 8.7	$ 2.6