Common Stock (Narrative) (Details) ZAR / shares in Units, $ / shares in Units, $ in Thousands, ZAR in Millions									1 Months Ended				12 Months Ended
	Jun. 29, 2016 USD ($)	Apr. 11, 2016 USD ($) $ / shares shares	Feb. 03, 2016 USD ($)	Jun. 06, 2014 shares	Jun. 05, 2014 ZAR / shares	Apr. 16, 2014 shares	Dec. 06, 2013 ZAR / shares shares	Oct. 10, 2013 item	Jun. 30, 2016 USD ($) shares	Feb. 29, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Nov. 30, 2015 USD ($) shares	Jun. 30, 2016 ZAR item ZAR / shares shares	Jun. 30, 2016 USD ($) item shares	Jun. 30, 2015 USD ($) $ / shares shares	Jun. 30, 2014 USD ($) shares	Jun. 30, 2016 USD ($) $ / shares	Sep. 09, 2014 $ / shares	Jun. 04, 2014 ZAR / shares
Class of Stock [Line Items]
Number of votes per common share | item													1	1
Price per share | ZAR / shares																			ZAR 120.00
Common stock, par value | $ / shares															$ 0.001		$ 0.001
Common stock, price per share | $ / shares																		$ 13.93
Subscription of shares, value																	$ 107,672
Share price benchmark, entire outstanding principal amount is required due | ZAR / shares													ZAR 120.00
Share price benchmark, trigger event for repurchase of shares | ZAR / shares													ZAR 60.00
Failed arbitration, trigger event, days													7 days	7 days
Period of trading days to the trigger events													30 days	30 days
Common stock repurchase per share | ZAR / shares					ZAR 109.98
Restricted resale period from date of issuance													5 years	5 years
Gain (loss) from non-controlling interests															$ 1,407
Difference in amount, fair value of consideration paid and non-controlling interest adjustment														$ 1,300		$ 1,500
10b5 Plan [Member]
Class of Stock [Line Items]
Stock repurchased, value	$ 50,000		$ 100,000
Masterpayment [Member]
Class of Stock [Line Items]
Business acquisition, cost of acquired entity									$ 9,400					11,200
SmartLife [Member]
Class of Stock [Line Items]
Business acquisition, cost of acquired entity														1
KSNET [Member]
Class of Stock [Line Items]
Business acquisition, cost of acquired entity																2,000
Gain (loss) from non-controlling interests														$ 0		0
Black Economic Empowerment [Member]
Class of Stock [Line Items]
Loan agreement term, in years													5 years	5 years
Basis points added to rate													3.00%	3.00%
Percent of outstanding principal amount due for first and second payments													10.00%	10.00%
Number of transactions | item								2
Percent of outstanding principal amount due for third and fourth payments													15.00%	15.00%
Black Economic Empowerment [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock repurchased, value																$ 24,900
Treasury shares acquired, shares | shares				2,400,000												2,428,122
Price per share | ZAR / shares							ZAR 60.00
Number of common stock shares, issued | shares						4,400,000	4,400,000
Calculated percentage of the closing price of common stock							75.00%
Percentage of discount							25.00%
Business Venture Investment [Member]
Class of Stock [Line Items]
Stock repurchased, value													ZAR 97.4	$ 9,200
Treasury shares acquired, shares | shares													1,837,432	1,837,432
Cash Paymaster Services [Member]
Class of Stock [Line Items]
Percent of subscription shares													12.50%	12.50%
Subscription of shares, value													ZAR 15.0				$ 1,400
Subscription Agreement [Member]
Class of Stock [Line Items]
Number of common stock shares, issued | shares		9,980,000
Common stock, par value | $ / shares		$ 0.001
Common stock, price per share | $ / shares		$ 10.79
Gross proceeds from transaction		$ 107,700
Board Rights [Member] | Policy Agreement [Member] | Minimum [Member]
Class of Stock [Line Items]
Percentage of common stock ownership for the right to nominate one director		5.00%
Percentage of common stock ownership for the right to appoint an observer		2.50%
Preemptive Rights [Member] | Policy Agreement [Member]
Class of Stock [Line Items]
Percentage of ownership for the right to purchase pro-rata shares		5.00%
Executed Under Share Repurchase Authorizations [Member]
Class of Stock [Line Items]
Stock repurchase program, authorized amount			$ 100,000
Stock repurchased, value									$ 27,100	$ 15,900	$ 11,200	$ 11,200
Treasury shares acquired, shares | shares									2,426,704	1,677,491	749,213	749,213			0	0
Put Option [Member] | Policy Agreement [Member]
Class of Stock [Line Items]
Percentage of ownership to adopt a shareholder rights plan		20.00%
Number of trading days preceding the triggering event		60 days