Acquired Card Receivables - Summary of Acquired Card Receivables by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024
Financing Receivable, Past Due [Line Items]
Total	$ 653,142	$ 718,099
Current and less than 30 days past due
Financing Receivable, Past Due [Line Items]
Total	637,986	706,026
30 ~ 59 days past due
Financing Receivable, Past Due [Line Items]
Total	5,918	4,277
60 ~ 89 days past due
Financing Receivable, Past Due [Line Items]
Total	4,118	3,393
90 ~ 119 days past due
Financing Receivable, Past Due [Line Items]
Total	4,868	4,093
Over 119 days past due
Financing Receivable, Past Due [Line Items]
Total	$ 252	$ 310