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RESULTS FROM OPERATING ACTIVITIES - Other Income and Admin expenses (Details) - ZAR (R)
R in Millions
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Disclosure Of Operating Activities [Abstract]      
Profit on disposal of property, plant and equipment R 0.0 R 12.9 R 10.5