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Equity-Accounted Investments And Other Long-Term Assets (Ownership Percentage Of Equity-Accounted Investments) (Details)
Jun. 30, 2019
Oct. 04, 2018
Jun. 30, 2018
Bank Frick [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity-accounted investments, ownership percentage 35.00%   35.00%
DNI [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity-accounted investments, ownership percentage 30.00%    
Finbond [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity-accounted investments, ownership percentage 29.00%   29.00%
OneFi [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%
V2 [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity-accounted investments, ownership percentage 50.00% 50.00%  
Walletdoc [Member]      
Schedule of Equity Method Investments [Line Items]      
Equity-accounted investments, ownership percentage 20.00%   20.00%