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Long-Term Borrowings (Narrative) (Details) $ / shares in Units, ₩ in Billions |  |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 29, 2018 ZAR (R) | Sep. 29, 2018 USD ($) | Jun. 28, 2018 ZAR (R) | Mar. 09, 2018 ZAR (R) | Mar. 09, 2018 USD ($) | Oct. 20, 2017 USD ($) | Sep. 29, 2017 item | Jul. 26, 2017 ZAR (R) | Jul. 26, 2017 USD ($) | Oct. 04, 2016 ZAR (R) shares | Apr. 11, 2016 $ / shares shares | Mar. 31, 2018 USD ($) | Aug. 31, 2017 ZAR (R) | Feb. 28, 2017 $ / shares shares | Oct. 31, 2013 item | Jun. 30, 2018 KRW (₩) | Jun. 30, 2018 ZAR (R) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 KRW (₩) | Jun. 30, 2017 ZAR (R) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 KRW (₩) | Jun. 30, 2016 USD ($) | Jun. 28, 2018 USD ($) | Mar. 09, 2018 USD ($) | Mar. 08, 2018 ZAR (R) | Jul. 21, 2017 ZAR (R) | Oct. 04, 2016 $ / shares
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of common stock | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price per share | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facility C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin added on rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.10% | 3.10% | 3.10% |  |  |  |  |  |  |  |  |  |
Facilities interest rate at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.51% | 4.51% | 4.51% |  |  |  |  |  |  |  |  |  |
Net1 Korea [Member] | Facilities Agreement [Member] | Facility C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount utilized from revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₩ 0.3 |  | $ 300,000 | ₩ 0.9 |  | $ 800,000 | ₩ 2.5 | $ 2,100,000 |  |  |  |  |
Net1 SA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Guarantee fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 16,000,000,000 | 1,100,000 |  |  |  |  |  |  |
Net1 SA [Member] | Facilities Agreement [Member] | RMB Loan Facilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount utilized from revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,400,000,000 |  |  |  |  |  |  |  |
Subscription Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of common stock | shares |  |  |  |  |  |  |  |  |  |  | 9,980,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price per share | $ / shares |  |  |  |  |  |  |  |  |  |  | $ 10.79 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original Loan Documents [Member] | Facility A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 750,000,000 |
Original Loan Documents [Member] | Facility B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000,000 |
Original Loan Documents [Member] | Net1 SA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facilities fees paid |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 | R 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original Loan Documents [Member] | Net1 SA [Member] | RMB Loan Facilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 1,250,000,000 |
Blue Label [Member] | Net1 SA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 2,000,000,000 |  |  |  |  |  |  |  |
Blue Label [Member] | Blue Label Subscription Agreement [Member] | Net1 SA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of common stock | shares |  |  |  |  |  |  |  |  |  | 117,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price per share | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 16.96
Aggregate purchase price |  |  |  |  |  |  |  |  |  | R 2,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cell C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage acquired in acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% | 15.00% | 15.00% |  |  |  |  |  |  |  |  |  |
JIBAR [Member] | Original Loan Documents [Member] | Facility A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% | 2.25% | 2.25% |  |  |  |  |  |  |  |  |  |
JIBAR [Member] | Original Loan Documents [Member] | Facility B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50% | 3.50% | 3.50% |  |  |  |  |  |  |  |  |  |
JIBAR [Member] | Original Loan Documents [Member] | Facility C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% | 2.25% | 2.25% |  |  |  |  |  |  |  |  |  |
JIBAR [Member] | Original Loan Documents [Member] | Facility D [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.75% | 2.75% | 2.75% |  |  |  |  |  |  |  |  |  |
JIBAR [Member] | Original Loan Documents [Member] | RMB Loan Facilities [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate | 6.96% | 6.96% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Africa [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 776,300,000 | $ 60,500,000 |  |  |  |  |  |  |  |  |  |
South Africa [Member] | Revolving Credit Facility [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of facilities | R 151,300,000 | $ 11,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Africa [Member] | Facilities Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,200,000 |  |  |  |  |  |  |  |  |  |
Amortization of fees, prepaid facility | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 |  |  |  |  |  |  |  |  |  |
South Africa [Member] | Facilities Agreement [Member] | Facility D [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | R 210,000,000 |  |
South Africa [Member] | DNI Credit Facility Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount utilized from revolving credit facility | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |
South Africa [Member] | DNI [Member] | DNI Credit Facility Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | R 200,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facility agreement, in years |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date |  |  | Jun. 01, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Origination fee |  |  | R 2,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |
South Africa [Member] | Original Loan Documents [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of quarter installments | item |  |  |  |  |  |  | 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Africa [Member] | Cell C [Member] | Facilities Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount utilized from revolving credit facility |  |  |  |  |  |  |  | R 1,250,000,000 | $ 92,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Africa [Member] | DNI [Member] | Facilities Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount utilized from revolving credit facility |  |  |  | R 84,000,000 | $ 7,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage acquired in acquisition |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |
Loan amount |  |  |  | R 126,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,600,000 |  |  |
South Africa [Member] | JIBAR [Member] | DNI [Member] | DNI Credit Facility Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin added on rate |  |  | 2.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Korea [Member] | Korean Senior Secured Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of facilities | $ |  |  |  |  |  | $ 16,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
South Korea [Member] | Facilities Agreement [Member] | Facility A And C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facilities fees paid | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  | 100,000 |  | 100,000 |  |  |  |  |
Interest expense | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000 |  |  | 1,200,000 |  | 2,600,000 |  |  |  |  |
South Korea [Member] | Net1 Korea [Member] | Facilities Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of facility agreements | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |
South Korea [Member] | Net1 Korea [Member] | Facilities Agreement [Member] | Facility A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.0 |  | 8,800,000 | ₩ 10.0 | $ 8,700,000 |  |  |  |  |
Principal repayment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22.1 |  | 19,600,000 |  |  |  |  |  |  |
South Korea [Member] | Net1 Korea [Member] | Facilities Agreement [Member] | Facility C [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | ₩ 10.0 |  | $ 8,900,000 |  |  |  |  |  |  |

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- Definition Line Of Credit Facility Amortization Of Fees + References No definition available. + Details
Name: | ueps_LineOfCreditFacilityAmortizationOfFees
Namespace Prefix: | ueps_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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