Summary of Significant Accounting Policies - Estimated Useful Lives (Details)	12 Months Ended
	Jun. 30, 2021
Data processing equipment | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Data processing equipment | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Buildings | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	20 years
Buildings | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Furniture and fixtures | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	4 years
Furniture and fixtures | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life	7 years