Basis Of Presentation And Summary Of Significant Accounting Policies (Policy)	9 Months Ended
	Mar. 31, 2019
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Unaudited Interim Financial Information	Unaudited Interim Financial Information The accompanying unaudited condensed consolidated financial statements include all majority-owned subsidiaries over which the Company exercises control and have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and the rules and regulations of the United States Securities and Exchange Commission for Quarterly Reports on Form 10-Q and include all of the information and disclosures required for interim financial reporting. The results of operations for the three and nine months ended March 31, 2019 and 2018, are not necessarily indicative of the results for the full year. The Company believes that the disclosures are adequate to make the information presented not misleading. These financial statements should be read in conjunction with the financial statements, accounting policies and financial notes thereto included in the Company's Annual Report on Form 10-K/A for the fiscal year ended June 30, 2018. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments (consisting only of normal recurring adjustments), which are necessary for a fair representation of financial results for the interim periods presented. References to the "Company" refer to Net1 and its consolidated subsidiaries, collectively, unless the context otherwise requires. References to "Net1" are references solely to Net 1 UEPS Technologies, Inc
Restatement Of Prior Year Balances Contained In Financial Statements And Related Notes	Restatement of prior year balances contained in financial statements and related notes for the three and nine months ended March 31, 2018 As previously reported and more fully described in Note 1 to the consolidated financial statements contained in the Form 10-K/A filed on December 6, 2018, the Company restated its 2018 consolidated financial statements, to correctly classify and record the change in fair value of its investment in Cell C in the statement of operations rather than in other comprehensive income as originally presented due to the election of the fair value option on acquisition. The Cell C investment was acquired in August 2017, and its fair value increased by $37,843 during the three and nine months ended March 31, 2018. Accordingly, the unaudited condensed consolidated financial statements for the three and nine months ended March 31, 2018, have also been restated with the effect of increasing income before tax by $37,843, income tax expense by $8,477 and net income by $29,366 and decreasing total comprehensive income by $29,366. The Company also identified and corrected other insignificant misstatements in its consolidated statement of cash flows for the three and nine months ended March 31, 2018. This decreased net cash provided by operating activities by $300 with a corresponding increase in net cash provided by investing activities but had no effect on the net (decrease) increase in cash, cash equivalents and restricted cash for the three months and nine months ended March 31, 2018.
Recent Accounting Pronouncements Adopted	Recent accounting pronouncements adopted In May 2014, the Financial Accounting Standards Board ("FASB") issued guidance regarding Revenue from Contracts with Customers. This guidance requires an entity to recognize revenue when a customer obtains control of promised goods or services in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. In addition, the standard requires disclosure of the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The guidance was originally set to be effective for the Company beginning July 1, 2017, however in August 2015, the FASB issued guidance regarding Revenue from Contracts with Customers, Deferral of the Effective Date. This guidance deferred the required implementation date specified in Revenue from Contracts with Customers to December 2017. Public companies were permitted to adopt the standard along the original timeline. The guidance became effective for the Company beginning July 1, 2018. The Company elected the modified retrospective transition method upon adoption of this guidance. The adoption of this guidance did not have a material impact on the Company's financial statements, except for the additional footnote disclosures provided. In January 2016, the FASB issued guidance regarding Recognition and Measurement of Financial Assets and Financial Liabilities. The guidance primarily affects the accounting for equity investments, financial liabilities under the fair value option and the presentation and disclosure requirements for financial instruments. The guidance requires changes in the fair value of the Company's equity investments, with certain exceptions, to be recognized through net income rather than other comprehensive income. In addition, the guidance clarifies the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. This guidance became effective for the Company beginning July 1, 2018. The amendments are required to be applied by means of a cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. The adoption of this guidance did not have a material impact on the Company's financial statements. Equity securities are measured at fair value. The Company may elect to measure equity securities without readily determinable fair values at its cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. We perform a qualitative assessment on a quarterly basis and recognize an impairment loss if there are sufficient indicators that the fair value of the equity security is less than carrying value. There were no changes in the fair value of our equity securities recorded during the three and nine months ended March 31, 2019. Changes in fair value will be recorded in our condensed consolidated statement of operations in future periods within a caption titled "changes in fair value of equity securities". In June 2016, the FASB issued guidance regarding Classification of Certain Cash Receipts and Cash Payments. The guidance is intended to reduce diversity in practice and explains how certain cash receipts and payments are presented and classified in the statement of cash flows, including beneficial interests in securitization, which would impact the presentation of the deferred purchase price from sales of receivables. This guidance became effective for the Company beginning July 1, 2018, and must be applied retrospectively. The Company has elected to classify distributions received from equity method investees using the nature of the distribution approach. This election requires the Company to evaluate each distribution received on the basis of the source of the payment and classify the distribution as either operating cash inflows or investing cash inflows. The adoption of this guidance did not have a material impact on the Company's financial statements and the Company was not required to make any retrospective adjustments. In January 2017, the FASB issued guidance regarding Clarifying the Definition of a Business. This guidance provides a more robust framework to use in determining when a set of assets and activities is a business. Because the current definition of a business is interpreted broadly and can be difficult to apply, stakeholders indicated that analyzing transactions is inefficient and costly and that the definition does not permit the use of reasonable judgment. The amendments provide more consistency in applying the guidance, reduce the costs of application, and make the definition of a business more operable. The guidance became effective for the Company beginning July 1, 2018. The adoption of this guidance did not have a material impact on the Company's financial statements. In January 2017, the FASB issued guidance regarding Simplifying the Test for Goodwill Impairment. This guidance removes the requirement for an entity to calculate the implied fair value of goodwill (as part of step 2 of the current goodwill impairment test) in measuring a goodwill impairment loss. The guidance is effective for the Company beginning July 1, 2020. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has elected to early adopt this guidance beginning July 1, 2018. The adoption of this guidance did not have a material impact on the Company's financial statements. In May 2017, the FASB issued guidance regarding Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting. The guidance amends the scope of modification accounting for share-based payment arrangements and provides guidance on the types of changes to the terms or conditions of share-based payment awards to which an entity would be required to apply modification accounting under Accounting Standards Codification 718. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. The guidance became effective for the Company beginning July 1, 2018. The adoption of this guidance did not have a material impact on the Company's financial statements. In June 2018, the FASB issued guidance regarding Improvements to Non-employee Share-Based Payment Accounting. The guidance simplifies the accounting for share-based payments granted to non-employees for goods and services and aligns the guidance for these share-based payments with guidance applicable to accounting for share-based payments granted to employees. The guidance is effective for the Company beginning July 1, 2019. Early adoption is permitted. The Company has elected to early adopt this guidance beginning July 1, 2018. The adoption of this guidance did not have a material impact on the Company's financial statements.
Recent Accounting Pronouncements Not Yet Adopted As Of March 31, 2019	Recent accounting pronouncements not yet adopted as of March 31, 2019 In February 2016, the FASB issued guidance regarding Leases. The guidance increases transparency and comparability among organizations by requiring the recognition of lease assets and lease liabilities on the balance sheet. The amendments to current lease guidance include the recognition of assets and liabilities by lessees for those leases currently classified as operating leases. The guidance also requires disclosures to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. This guidance is effective for the Company beginning July 1, 2019. Early adoption is permitted. The Company expects that this guidance may have a material impact on its financial statements and is currently evaluating the impact of this guidance on its financial statements on adoption. In June 2016, the FASB issued guidance regarding Measurement of Credit Losses on Financial Instruments. The guidance replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. For trade and other receivables, loans, and other financial instruments, an entity is required to use a forward-looking expected loss model rather than the incurred loss model for recognizing credit losses, which reflects losses that are probable. Credit losses relating to available-for-sale debt securities will also be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. This guidance is effective for the Company beginning July 1, 2020. Early adoption is permitted beginning July 1, 2019. The Company is currently assessing the impact of this guidance on its financial statements and related disclosures. In August 2018, the FASB issued guidance regarding Disclosure Framework: Changes to the Disclosure Requirements for Fair Value Measurement. The guidance modifies the disclosure requirements related to fair value measurement. This guidance is effective for the Company beginning July 1, 2020. Early adoption is permitted. The Company is currently assessing the impact of this guidance on its financial statements disclosure.