Funds Held for Customers - Summary of Gross Unrealized Losses And Fair Values (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Funds Held For Customers [Line Items]
Fair value	$ 81,860	$ 66,781
Unrealized losses	(39)	(11)
Corporate Bonds
Funds Held For Customers [Line Items]
Fair value	79,359	31,785
Unrealized losses	(38)	(7)
U.S. Treasury Securities
Funds Held For Customers [Line Items]
Fair value	2,501	14,990
Unrealized losses	$ (1)	(1)
Certificates of Deposit
Funds Held For Customers [Line Items]
Fair value		20,006
Unrealized losses		$ (3)