Operating Segments (Reconciliation Of Reportable Segments Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 236,372		$ 612,889
Reportable Segment, Before Corporate/Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		$ 380,699
Reportable Segment, After Corporate/Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		360,990
Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	150,997	166,227	459,575
Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	85,375	194,763	153,314
South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	65,840	89,048	238,098
International Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	90,416	148,268	180,027
International Transaction Processing [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	5,041	9,842	26,713
International Transaction Processing [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	85,375	138,426	153,314
Financial Inclusion And Applied Technologies [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	80,116	143,383	194,764
Financial Inclusion And Applied Technologies [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		87,046	194,764
Financial Inclusion And Applied Technologies [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		56,337	0
Reportable Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	246,554	390,490	669,980
Reportable Segment [Member] | Reportable Segment, Before Corporate/Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		390,490
Reportable Segment [Member] | Reportable Segment, After Corporate/Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		390,490
Reportable Segment [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	161,179	195,727	516,666
Reportable Segment [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	85,375	194,763	153,314
Reportable Segment [Member] | South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	73,796	96,038	268,047
Reportable Segment [Member] | International Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	90,416	148,268	180,027
Reportable Segment [Member] | International Transaction Processing [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	5,041	9,842	26,713
Reportable Segment [Member] | International Transaction Processing [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	85,375	138,426	153,314
Reportable Segment [Member] | Financial Inclusion And Applied Technologies [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	82,342	146,184	221,906
Reportable Segment [Member] | Financial Inclusion And Applied Technologies [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		89,847	221,906
Reportable Segment [Member] | Financial Inclusion And Applied Technologies [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		56,337	0
Inter-Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(10,182)	(9,791)	(57,091)
Inter-Segment [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(10,182)	(9,791)	(57,091)
Inter-Segment [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	0	0
Inter-Segment [Member] | South African Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(7,956)	(6,990)	(29,949)
Inter-Segment [Member] | International Transaction Processing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	0	0
Inter-Segment [Member] | International Transaction Processing [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	0	0
Inter-Segment [Member] | International Transaction Processing [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	0	0	0
Inter-Segment [Member] | Financial Inclusion And Applied Technologies [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ (2,226)	(2,801)	(27,142)
Inter-Segment [Member] | Financial Inclusion And Applied Technologies [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		(2,801)	(27,142)
Inter-Segment [Member] | Financial Inclusion And Applied Technologies [Member] | Discontinued [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		0	$ 0
Corporate/Eliminations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		(19,709)
Corporate/Eliminations [Member] | Continuing [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		$ (19,709)