Acquisitions, Dispositions And Discontinued Operations (Narrative) (Details) $ in Thousands, R in Millions					1 Months Ended		3 Months Ended	12 Months Ended
	Jun. 28, 2018 USD ($) shares	Jun. 28, 2018 ZAR (R)	Mar. 09, 2018 USD ($) shares	Jul. 27, 2017 USD ($) shares	May 31, 2019	Mar. 31, 2019 ZAR (R)	Sep. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($) Item		Jun. 30, 2018 USD ($)		Mar. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 01, 2019 USD ($)	Nov. 01, 2019 ZAR (R)	Sep. 30, 2019 ZAR (R)	Mar. 31, 2019 USD ($)	Jun. 30, 2018 ZAR (R)	Jun. 28, 2018 ZAR (R) shares	Mar. 09, 2018 ZAR (R) shares	Jul. 27, 2017 ZAR (R) shares
Business Acquisition [Line Items]
Payment for the subscription agreements in cash								$ 2,500	$ 2,989	[1]	$ 133,335	[1]
Other long-term liabilities								2,012	$ 2,499	[2]
DNI [Member]
Business Acquisition [Line Items]
Ordinary A shares subscribed in strategic investments | shares	6,000,000		4,000,000	44,999,999																6,000,000	4,000,000	44,999,999
Percentage of voting and economic interest under share subscription			49.00%	45.00%
Subscription price of shares	$ 9,200		$ 7,500	$ 72,000																R 126.0	R 89.3	R 945.0
Percentage of voting and economic interest acquired	55.00%																			55.00%
Interest-free loan receivable amount			$ 10,600																		R 126.0
Proceeds from repayment of loan	$ 9,200	R 126.0
Acquisition related costs											500
Deferred tax liabilities related to acquisition of intangible assets											29,100
Number of towers constructed by Cell C | Item									1,000
Impairment of loss, net of deferred tax									$ 5,300
Percentage of towers constructed by Cell C									22.00%
DNI [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Finite lived Intangible Assets Acquired1								$ 97,255
Intangible assets acquired																		$ 7,000
Deferred taxes in business combination to reduce intangible assets																		$ 2,000
Subscription Agreements Additional Payable Amount [Member] | DNI [Member]
Business Acquisition [Line Items]
Settlement of contingent consideration | R						R 400.0
Present values of other long-term liabilities											$ 27,200								R 373.6
Interest rate used to calculate interest earned											6.30%
Subscription Agreements Additional Payable Amount [Member] | DNI [Member] | Maximum [Member]
Business Acquisition [Line Items]
Other long-term liabilities											$ 29,100								R 400.0
FIHRST [Member] | Discontinued [Member]
Business Acquisition [Line Items]
Consideration amount from disposal of discontinued operation														$ 11,749	$ 10,900	R 159.7
Net1 Korea [Member] | Discontinued [Member]
Business Acquisition [Line Items]
Consideration amount from disposal of discontinued operation													$ 237,220
DNI [Member]
Business Acquisition [Line Items]
Present values of other long-term liabilities							$ 9,400										R 129.0
Interest rate used to calculate interest earned							10.00%
DNI [Member] | Net1 SA [Member] | Discontinued [Member]
Business Acquisition [Line Items]
Percentage of ownership interest prior to disposal						55.00%
Percentage of ownership interest after disposal						38.00%
DNI [Member] | Net1 SA [Member] | Transaction To Sell 8% [Member] | Discontinued [Member]
Business Acquisition [Line Items]
Percentage of ownership interest prior to disposal					38.00%
Percentage of ownership interest after disposal					30.00%

[1] Certain amounts have been restated to correct the misstatement discussed in Note 1

[2] Refer to Note 1