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EQUITY (Details) - ZAR (R)
 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Issued share capital:      
SA cents per share, prior year final dividend R 5 R 12 R 10
Total, dividends current year R 21,100,000 R 50,600,000 R 42,200,000
SA cents per share R 5 R 0 R 50
Total, dividends prior year R 21,100,000 R 0 R 210,700,000
Total dividends R 42,200,000 R 50,600,000 R 252,900,000
Ordinary shares [member]      
Disclosure of classes of share capital [line items]      
Authorised share capital, number of shares 1,500,000,000 600,000,000 600,000,000
Value per share R 0 R 0 R 0
Issued share capital:      
Number of issued share capital 431,429,767 431,429,767 431,429,767
Total share capital R 4,227,900,000 R 4,227,900,000 R 4,227,900,000
Preference shares [member]      
Disclosure of classes of share capital [line items]      
Authorised share capital, number of shares 5,000,000 5,000,000 5,000,000
Value per share R 0.1 R 0.1 R 0.1
Authorised share capital value R 500,000 R 500,000 R 500,000
Issued share capital:      
Number of issued share capital 5,000,000 5,000,000 5,000,000
Total share capital R 500,000 R 500,000 R 500,000
Treasury shares [member]      
Issued share capital:      
Number of issued share capital 9,361,071 9,361,071 9,361,071
Treasury Shares R (50,700,000) R (50,700,000) R (50,700,000)