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Equity-Accounted Investments And Other Long-Term Assets (Ownership Percentage Of Equity-Accounted Investments) (Details)
Jun. 30, 2021
Jun. 30, 2020
Feb. 29, 2020
Jun. 30, 2019
Finbond [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage 31.00% 31.00%    
Carbon Tech Limited ("Carbon"), formerly OneFi Limited [Member]        
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%    
Revix [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage 15.00% 25.00%    
Bank Frick [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage 0.00% 35.00%    
DNI [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage     27.00% 30.00%
V2 [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage 0.00% 50.00%    
Walletdoc [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity-accounted investments, ownership percentage 0.00% 20.00%