Funds Held for Customers - Summary of Funds Held for Customers (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Funds Held For Customers [Line Items]
Total funds held for customers	$ 3,380,877	$ 2,209,248
Total funds held for customers, net of income earned by the Company	3,380,395	2,208,598
Other Current Assets
Funds Held For Customers [Line Items]
Less - income earned by the Company	(482)	(650)
Certificates of Deposit
Funds Held For Customers [Line Items]
Total funds held for customers	372,340	326,927
Restricted Cash and Other Receivables
Funds Held For Customers [Line Items]
Total funds held for customers	2,130,395	1,208,598
Restricted Cash Equivalents
Funds Held For Customers [Line Items]
Total funds held for customers	64,814	86,322
Corporate Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	746,654	516,350
Asset Backed Securities
Funds Held For Customers [Line Items]
Total funds held for customers	43,645	25,085
U.S. Treasury Securities
Funds Held For Customers [Line Items]
Total funds held for customers	6,104	3,009
Municipal Bonds
Funds Held For Customers [Line Items]
Total funds held for customers	$ 16,925	$ 42,957