Operating Segments (Reconciliation Of Reportable Segments Revenue) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 182,753	$ 138,126	$ 137,283	$ 123,494	$ 117,882	$ 111,141	$ 111,442	$ 111,682	$ 581,656	$ 452,147	$ 390,264
South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									250,034	242,244	191,619
International Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									152,725	135,954	120,625
Financial Inclusion And Applied Technology [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									178,897	73,949	78,020
Reportable Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									621,897	486,694	406,047
Reportable Segment [Member] | South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									261,577	242,739	194,630
Reportable Segment [Member] | International Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									152,725	135,954	120,625
Reportable Segment [Member] | Financial Inclusion And Applied Technology [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									207,595	108,001	90,792
Inter-Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									40,241	34,547	15,783
Inter-Segment [Member] | South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									11,543	495	3,011
Inter-Segment [Member] | Financial Inclusion And Applied Technology [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									$ 28,698	$ 34,052	$ 12,772