Equity-Accounted Investments And Other Long-Term Assets (Ownership Percentage Of Equity-Accounted Investments) (Details)	Mar. 31, 2022	Jun. 30, 2021
Finbond [Member]
Schedule of Equity Method Investments [Line Items]
Equity-accounted investments, ownership percentage	29.00%	31.47%
Carbon Tech Limited ("Carbon")
Schedule of Equity Method Investments [Line Items]
Equity-accounted investments, ownership percentage	25.00%	25.00%
SmartSwitch Namibia [Member]
Schedule of Equity Method Investments [Line Items]
Equity-accounted investments, ownership percentage	50.00%	50.00%