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RECLAMATION AND CLOSURE COST OBLIGATIONS (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure of reclamation and closure cost obligations [Abstract]  
Detailed information about reclamation and closure cost obligations [Text Block]
Changes to the reclamation and closure cost obligations are as follows:
 
 
(in millions of U.S. dollars)
Rainy
River
New
Afton
Mesquite
Peak
Mines
Cerro San
Pedro
Blackwater
Total
Changes to reclamation and closure cost obligations
 
 
 
Balance – December 31, 2015
 7.9
 7.4
 13.2
 14.2
 17.8
 8.3
 68.8
Reclamation expenditures
 -
 -
 -
 -
 (2.6)
 -
 (2.6)
Unwinding of discount
 0.2
 0.1
 0.2
 0.3
 0.7
 0.2
 1.7
Revisions to expected cash flows
 11.8
 (0.1)
 0.2
 (0.7)
 4.2
 0.1
 15.5
Foreign exchange movement
 0.1
 0.2
 -
 (0.1)
 (2.0)
 0.3
 (1.5)
Balance – December 31, 2016
 20.0
 7.6
 13.6
 13.7
 18.1
 8.9
 81.9
Less: current portion of closure costs (Note 8)
 -
 -
 -
 (0.1)
 (0.8)
 -
 (0.9)
Non-current portion of closure costs
 20.0
 7.6
 13.6
 13.6
 17.3
 8.9
 81.0
Balance – December 31, 2016
 20.0
 7.6
 13.6
 13.7
 18.1
 8.9
 81.9
Reclamation expenditures
 -
 (0.2)
 -
 (0.1)
 (1.0)
 (0.1)
 (1.4)
Unwinding of discount
 0.4
 0.2
 0.3
 0.4
 0.2
 0.2
 1.7
Revisions to expected cash flows
 41.4
 3.2
 6.6
 3.1
 1.2
 (0.3)
 55.2
Foreign exchange movement
 1.6
 0.8
 -
 1.1
 0.7
 0.7
 4.9
Less: amounts reclassified as held for sale
 -
 -
 -
 (18.2)
 -
 -
 (18.2)
Balance – December 31, 2017
 63.4
 11.6
 20.5
 -
 19.2
 9.4
 124.1
Less: current portion of closure costs (Note 8)
 -
 -
 (0.2)
 -
 (2.4)
 -
 (2.6)
Non-current portion of closure costs
 63.4
 11.6
 20.3
 -
 16.8
 9.4
 121.5