Acquisitions (Schedule Of Purchase Price Allocation Translated At Applicable Foreign Exchange Rate) (Details) - USD ($) $ in Thousands				1 Months Ended	12 Months Ended
		Jul. 27, 2017	Jan. 20, 2016	Apr. 30, 2016	Jun. 30, 2018	Jun. 30, 2016	Jun. 30, 2017		Nov. 30, 2016	Oct. 31, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Goodwill (Note 10)					$ 283,240	$ 179,478	$ 188,833	[1]			$ 166,437
Deferred tax liabilities					(29,100)		(700)
Less: carrying value at the acquisition date (Note 9)					$ (79,633)
DNI [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 2,979
Accounts receivable		16,977
Inventory		2,526
Property, plant and equipment		1,317
Equity-accounted investments - Speckpack (Note 9)		339
Goodwill (Note 10)		114,161
Intangible assets (Note 10)		104,003
Deferred tax assets		561
Other long-term assets	[2]	21,348
Account payables and other payables		(20,914)
Income taxes payable
Other long-term liabilities	[2]	(8,291)
Deferred tax liabilities		(29,121)
Fair value of assets and liabilities on acquisition		205,885
Less: fair value attributable to controlling interests on aquisition date		(94,123)
Less: fair value of equity-accounted investment, comprising:		(100,947)
Add: loss on re-measurement of previously held interest		4,614
Less: Contingent payment recognized related to 49% interest acquired		(25,589)
Less: carrying value at the acquisition date (Note 9)		(79,972)
Less: Contingent payment recognized related to 6% interest acquired		(1,633)
Total purchase price		$ 9,182
Malta FS [Member]
Business Acquisition [Line Items]
Cash and cash equivalents									$ 999
Accounts receivable									983
Property, plant and equipment									30
Goodwill (Note 10)									2,475
Intangible assets (Note 10)									1,078
Account payables and other payables									(1,570)
Deferred tax liabilities									(56)
Total purchase price									$ 3,939
Pros Software [Member]
Business Acquisition [Line Items]
Cash and cash equivalents										$ 110
Accounts receivable										165
Property, plant and equipment										9
Intangible assets (Note 10)										2,311
Account payables and other payables										(58)
Income taxes payable										(69)
Deferred tax liabilities										(647)
Total purchase price										$ 1,821
Malta FS And Pros Software [Member]
Business Acquisition [Line Items]
Cash and cash equivalents							1,109
Accounts receivable							1,148
Property, plant and equipment							39
Goodwill (Note 10)							2,475
Intangible assets (Note 10)							3,389
Account payables and other payables							(1,628)
Income taxes payable							(69)
Deferred tax liabilities							(703)
Total purchase price							$ 5,760
Transact24 [Member]
Business Acquisition [Line Items]
Cash and cash equivalents			$ 1,334
Accounts receivable			2,019
Property, plant and equipment			154
Goodwill (Note 10)			6,024
Intangible assets (Note 10)			4,974
Deferred tax assets			1,070
Account payables and other payables			(1,898)
Deferred tax liabilities			(1,243)
Fair value of assets and liabilities on acquisition			12,434
Less: fair value of equity-accounted investment, comprising:			(5,471)
Less: gain on re-measurement of previously held interest			(1,908)
Less: carrying value at the acquisition date (Note 9)			(3,563)
Total purchase price			$ 6,963
Masterpayment [Member]
Business Acquisition [Line Items]
Cash and cash equivalents				$ 665
Accounts receivable				765
Property, plant and equipment				18
Goodwill (Note 10)				17,084
Intangible assets (Note 10)				9,428
Account payables and other payables				(1,114)
Deferred tax liabilities				(2,236)
Fair value of assets and liabilities on acquisition				24,610
Less: fair value attributable to controlling interests on acquisition date				(9,844)
Total purchase price				14,766
Add: carrying value of non-controlling interests acquired				9,867
Add: adjustment to Net1 equity (Note 15)				1,322
Cash paid for non-controlling interest (Note 15)				11,189
Total consideration paid for Masterpayment				$ 25,955
Transact24 And Masterpayment [Member]
Business Acquisition [Line Items]
Cash and cash equivalents						1,999
Accounts receivable						2,784
Property, plant and equipment						172
Goodwill (Note 10)						23,108
Intangible assets (Note 10)						14,402
Deferred tax assets						1,070
Account payables and other payables						(3,012)
Deferred tax liabilities						(3,479)
Fair value of assets and liabilities on acquisition						37,044
Less: fair value of equity-accounted investment, comprising:						(5,471)
Less: gain on re-measurement of previously held interest						(1,908)
Less: carrying value at the acquisition date (Note 9)						(3,563)
Less: fair value attributable to controlling interests on acquisition date						(9,844)
Total purchase price						$ 21,729

[1] Refer to Note 1.

[2] DNI concluded an acquisition in November 2017 and other long-term liabilities includes a contingent purchase consideration of ZAR 113.8 million ($8.3 million) due to the sellers and other long-term assets includes an amount due from the DNI shareholders, excluding the Company. DNI is obligated under the terms of this obligation to pay 50% of the purchase consideration plus or (less) a contingent amount (refund) calculated on a multiple of excess (deficit) earnings over (less) an agreed earnings amount. The other DNI shareholders have agreed to reimburse DNI the 50% consideration plus (less) the contingent amount (refund) payable in full. Therefore, other long-term asset includes the amounts due from the DNI shareholder, excluding the Company, and other long-term liabilities includes the contingent consideration due under the November 2017 acquisition. The Company expects DNI to pay, and to be reimbursed, the additional amount during the first quarter of the year ended June 30, 2020, which amount represents the present value of the ZAR 129.0 million ($9.4 million) to be paid (amounts translated at exchange rates applicable as of June 30, 2018). The present value of ZAR 113.8 million ($8.3 million) has been calculated using the following assumptions (a) the maximum additional amount of ZAR 129.0 million will be paid on August 1, 2019 and (b) an interest rate of 10.0 % (the rate used to calculate interest earned by DNI on its surplus South African funds) has been used to discount the ZAR 129.0 million to its present value as of June 30, 2018. Utilization of different inputs, or changes to these inputs, may result in significantly higher or lower fair value measurement.