Earnings Per Share (Income From Continuing Operations And Share Data Used In Basic And Diluted Earnings Per Share Computations) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income attributable to Net1	$ 24,356	$ 18,420	$ 16,658	$ 23,020	$ 23,914	$ 24,358	$ 22,374	$ 24,089	$ 82,454	$ 94,735	$ 70,111
Undistributed earnings									$ 82,454	$ 94,735	$ 70,111
Percent allocated to common shareholders (Calculation 1)									99.00%	99.00%	99.00%
Numerator for earnings per share: basic and diluted									$ 81,370	$ 93,750	$ 69,376
Denominator for basic earnings per share: weighted-average common shares outstanding									47,234	46,247	45,997
Effect of dilutive securities: Stock options									242	152	119
Denominator for diluted earnings per share: adjusted weighted average common shares outstanding and assumed conversion									47,476	46,399	46,116
Earnings per share: Basic	$ 0.48	$ 0.40	$ 0.35	$ 0.49	$ 0.51	$ 0.52	$ 0.48	$ 0.51	$ 1.72	$ 2.03	$ 1.51
Earnings per share: Diluted	$ 0.47	$ 0.39	$ 0.35	$ 0.48	$ 0.51	$ 0.52	$ 0.48	$ 0.51	$ 1.71	$ 2.02	$ 1.50
Basic weighted-average common shares outstanding (A)									47,234	46,247	45,997
Basic weighted-average common shares outstanding and unvested restricted shares expected to vest (B)									47,863	46,733	46,484