Common Stock (Narrative) (Details)	0 Months Ended	12 Months Ended					0 Months Ended
	Jun. 05, 2014 ZAR	Jun. 30, 2014 USD ($) item	Jun. 30, 2014 ZAR	Jun. 30, 2012 USD ($)	Jun. 30, 2014 KSNET [Member] USD ($)	Jun. 30, 2014 Black Economic Empowerment [Member]	Jun. 06, 2014 Black Economic Empowerment [Member] Common Stock [Member]	Apr. 16, 2014 Black Economic Empowerment [Member] Common Stock [Member]	Dec. 06, 2013 Black Economic Empowerment [Member] Common Stock [Member]	Dec. 06, 2013 Black Economic Empowerment [Member] Common Stock [Member] ZAR
Class of Stock [Line Items]
Number of votes per common share		1	1
Stock repurchase program, authorized amount		$ 100,000,000
Treasury shares acquired, value		24,858,000		1,129,000
Treasury shares acquired, shares		2,428,122	2,428,122	180,656			2,400,000
Number of shares, issued								4,400,000	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	5 years			5 years
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
Share price benchmark, trigger event for repurchase of shares			60.00
Failed arbitration, trigger event, days		7 days	7 days
Period of trading days to the trigger events		30 days	30 days
Business acquisition, cost of acquired entity, cash paid					2,000,000
Difference in amount, fair value of consideration paid and non-controlling interest adjustment					$ 1,500,000
Common stock repurchase per share	109.98
Restricted resale period from date of issuance		5 years	5 years