Revenue Recognition (Revenue Disaggregated By Major Revenue Streams) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 236,372		$ 612,889
Inter-Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	(10,182)	$ (9,791)	(57,091)
Corporate/Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenues		(19,709)
Continuing [Member]
Disaggregation of Revenue [Line Items]
Revenues	150,997	166,227	459,575
Continuing [Member] | Inter-Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	(10,182)	(9,791)	$ (57,091)
South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	65,840	89,048
International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,041	9,842
Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	80,116	87,046
Processing Fees [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	62,552	79,379
Processing Fees [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,041	9,303
Welfare Benefit Distributions [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues		3,086
Telecom Products And Services [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	22,631	15,025
Account Holder Fees [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,628	17,428
Lending Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	19,955	27,512
Technology Products [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	18,261	20,594
Insurance Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,212	5,858
Other [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,288	6,583
Other [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	539
Other [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,429	629
South Africa [Member] | Corporate/Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenues		(19,709)
South Africa [Member] | Continuing [Member]
Disaggregation of Revenue [Line Items]
Revenues	145,956	156,385
South Africa [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	65,840	89,048
South Africa [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
South Africa [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	80,116	87,046
South Africa [Member] | Processing Fees [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	62,552	79,379
South Africa [Member] | Processing Fees [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
South Africa [Member] | Welfare Benefit Distributions [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues		3,086
South Africa [Member] | Telecom Products And Services [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	22,631	15,025
South Africa [Member] | Account Holder Fees [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,628	17,428
South Africa [Member] | Lending Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	19,955	27,512
South Africa [Member] | Technology Products [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	18,261	20,594
South Africa [Member] | Insurance Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,212	5,858
South Africa [Member] | Other [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,288	6,583
South Africa [Member] | Other [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
South Africa [Member] | Other [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,429	629
Rest Of World [Member] | Continuing [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,041	9,842
Rest Of World [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,041	9,842
Rest Of World [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Processing Fees [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Processing Fees [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,041	9,303
Rest Of World [Member] | Welfare Benefit Distributions [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues		0
Rest Of World [Member] | Telecom Products And Services [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Account Holder Fees [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Lending Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Technology Products [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Insurance Revenue [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Other [Member] | South African Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0
Rest Of World [Member] | Other [Member] | International Transaction Processing [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	539
Rest Of World [Member] | Other [Member] | Financial Inclusion And Applied Technologies [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0