Funds Held for Customers - Summary of Fair Value of Funds Held For Customers (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Funds Held For Customers [Line Items]
Amortized cost	$ 1,286,844	$ 914,334
Gross unrealized gains	1	33
Gross unrealized losses	(2,127)	(39)
Fair value	1,284,718	914,328
Corporate bonds
Funds Held For Customers [Line Items]
Amortized cost	809,113	516,364
Gross unrealized gains	1	24
Gross unrealized losses	(1,429)	(38)
Fair value	807,685	516,350
Asset backed securities
Funds Held For Customers [Line Items]
Amortized cost	70,574	25,081
Gross unrealized gains	0	4
Gross unrealized losses	(662)	0
Fair value	69,912	25,085
U.S. treasury securities
Funds Held For Customers [Line Items]
Amortized cost	3,082	3,010
Gross unrealized gains	0	0
Gross unrealized losses	(10)	(1)
Fair value	3,072	3,009
Certificates of deposit
Funds Held For Customers [Line Items]
Amortized cost	397,533	326,927
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair value	397,533	326,927
Municipal bonds
Funds Held For Customers [Line Items]
Amortized cost	6,542	42,952
Gross unrealized gains	0	5
Gross unrealized losses	(26)	0
Fair value	$ 6,516	$ 42,957