Funds Held for Customers - Summary of Funds Held for Customers (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Funds Held For Customers [Line Items]
Total funds held for customers	$ 1,930,544	$ 1,649,386
Total funds held for customers, net of income earned by the Company	1,929,840	1,644,250
Restricted Cash and Other Receivables
Funds Held For Customers [Line Items]
Total funds held for customers	1,049,840	586,893
Restricted Cash Equivalents
Funds Held For Customers [Line Items]
Total funds held for customers	109,441	433,709
Corporate Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	489,158	493,879
U.S. Treasury Securities
Funds Held For Customers [Line Items]
Total funds held for customers	10,000	48,952
Asset Backed Securities
Funds Held For Customers [Line Items]
Total funds held for customers	14,994
Certificates of Deposit
Funds Held For Customers [Line Items]
Total funds held for customers	222,181	85,953
Municipal Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	34,930
Other Current Assets
Funds Held For Customers [Line Items]
Less - income earned by the Company	$ (704)	$ (5,136)