Acquired Card Receivables - Summary of Change in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Acquired Card Receivables [Abstract]
Balance, beginning	$ 1,740	$ 0
Initial allowance for credit losses on purchased card receivables with credit deterioration	313	2,082
Provision for expected credit losses	19,566	462
Charge-off amounts	(18,005)	(828)
Recoveries collected	1,800	24
Balance, ending	$ 5,414	$ 1,740