Acquired Card Receivables - Summary of Acquired Card Receivables by Class (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Financing Receivable, Past Due [Line Items]
Total	$ 218,021	$ 148,833
Current and Less than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	212,225	145,993
30 ~ 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	2,272	1,188
60 ~ 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,738	580
90 ~ 119 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	1,723	713
Over 119 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	$ 63	$ 359