Funds Held for Customers - Summary of Funds Held for Customers (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Funds Held For Customers [Line Items]
Total funds held for customers	$ 2,209,248	$ 1,649,386
Total funds held for customers, net of income earned by the Company	2,208,598	1,644,250
Restricted Cash and Other Receivables
Funds Held For Customers [Line Items]
Total funds held for customers	1,208,598	586,893
Restricted Cash Equivalents
Funds Held For Customers [Line Items]
Total funds held for customers	86,322	433,709
Corporate Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	516,350	493,879
Asset Backed Securities
Funds Held For Customers [Line Items]
Total funds held for customers	25,085
U.S. Treasury Securities
Funds Held For Customers [Line Items]
Total funds held for customers	3,009	48,952
Certificates of Deposit
Funds Held For Customers [Line Items]
Total funds held for customers	326,927	85,953
Municipal Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	42,957
Other Current Assets
Funds Held For Customers [Line Items]
Less - income earned by the Company	$ (650)	$ (5,136)