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EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2018
Expenses by nature [abstract] |
Disclosure of expenses by nature [text block] | (a) Operating expenses by nature
| Year ended December 31
(in millions of U.S. dollars) | 2018 | 2017
OPERATING EXPENSES BY NATURE |  |
Raw materials and consumables | 148.1 | 85.0
Salaries and employee benefits | 102.1 | 59.6
Contractors | 60.6 | 32.2
Repairs and maintenance | 47.7 | 15.1
General and administrative | 20.3 | 15.7
Operating leases | 4.2 | 2.3
Royalties | 3.5 | 2.9
Drilling and analytical | 2.4 | 1.3
Other | 5.2 | 2.5
Total production expenses | 394.1 | 216.6
Less: Production expenses capitalized | (45.3) | (22.5)
Less: Change in inventories | (23.4) | 4.2
Total operating expenses | 325.4 | 198.3
Disclosure of finance income (cost) [text block] | (b) Finance costs and income
| Year ended December 31
(in millions of U.S. dollars) | 2018 | 2017
FINANCE COSTS |  |
Interest on senior unsecured notes | 53.2 | 54.4
Interest on Credit Facility | 9.0 | 5.9
Accretion expense on decommissioning obligations (Note 17) | 2.0 | 1.0
Gain on modification of long-term debt | - | (3.3)
Other finance costs | 4.8 | 6.1
| 69.0 | 64.1
Less: amounts included in cost of qualifying assets | - | (51.3)
Total finance costs | 69.0 | 12.8
FINANCE INCOME |  |
Interest income | 1.5 | 1.1
Disclosure of detailed information about other losses gains [text block] | (c) Other gains
| Year ended December 31
(in millions of U.S. dollars) | 2018 | 2017
OTHER GAINS |  |
Unrealized gain on share purchase warrants | - | 1.2
Gain (loss) on foreign exchange | 6.6 | 43.8
Gain on disposal of El Morro stream | - | 33.0
Other (loss) gain on disposal of assets | (0.3) | 0.3
Loss on revaluation of investments | (0.2) | (0.2)
Unrealized gain (loss) on revaluation of gold stream obligation (Note 12) | 11.7 | (21.8)
Settlement and loss on revaluation of gold price option contracts | (4.8) | (6.5)
Gain (loss) on revaluation of copper forward contracts and copper price option contracts | 4.8 | (4.4)
Revaluation of CSP’s reclamation and closure cost obligation (1) | (1.0) | -
Other | 1.3 | 1.2
Total other gains | 18.1 | 46.6
| 1. | Cerro San Pedro has transitioned to the reclamation phase of its mine life cycle effective December 31, 2018. As a result, changes in estimate to Cerro San Pedro’s reclamation and closure cost obligation resulting from revisions to the expected cash flows will be recognized within other gains and losses.

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