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SUBSEQUENT EVENTS (Details)
12 Months Ended
Dec. 31, 2018
Loulo [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in subsidiary 80.00%
Gounkoto [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in subsidiary 80.00%
Tongon [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in subsidiary 89.70%
Massawa project [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in subsidiary 83.30%
Kibali [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in joint venture 45.00%
Morial [Member]  
Disclosure of non-adjusting events after reporting period [line items]  
Proportion of ownership interest in joint venture 40.00%