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Capital Structure (Narrative) (Details)
In Millions, except Share data, unless otherwise specified
 9 Months Ended 9 Months Ended
Mar. 31, 2014
ZAR
Dec. 06, 2013
Mar. 31, 2014
KSNET [Member]
USD ($)
Mar. 31, 2014
Black Economic Empowerment [Member]
Mar. 31, 2014
Black Economic Empowerment [Member]
Common Stock [Member]
ZAR
Class of Stock [Line Items]          
Number of shares, available for sale         4,400,000
Common stock price per share         60.00
Calculated percentage of the closing price of common stock   75.00%      
Loan agreement term, in years       5 years  
Interest rate at period end       6.38%  
Basis points added to rate       3.00%  
Percent of outstanding principal amount due for first and second payments       10.00%  
Percent of outstanding principal amount due for third and fourth payments       15.00%  
Share price benchmark, entire outstanding principal amount is required due 120.00        
Failed arbitration, trigger event, days 7 days        
Period of trading days to the trigger events 30 days        
Cash paid for capital shares     $ 2.0    
Difference in amount, fair value of consideration paid and non-controlling interest adjustment     $ 1.5