Acquired Card Receivables - Summary of Change in Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Allowance For Credit Losses [Roll Forward]
Balance, beginning	$ 20,883	$ 15,498
Provision for expected credit losses	15,171	11,975
Charge-off amounts	(13,028)	(9,791)
Recoveries collected	1,842	831
Balance, ending	$ 24,868	$ 18,513