Acquired Card Receivables - Summary of Outstanding Transferred Card Receivables by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Financing Receivable, Past Due [Line Items]
Total	$ 62,452	$ 28,601
Current and Less than 30 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	60,772	27,763
30 ~ 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	397	240
60 ~ 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	802	165
90 ~ 119 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	437	301
Over 119 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	$ 44	$ 132