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v3.19.1

Amounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract] |
Schedule of Receivables |
| December 31, 2018 | December 31, 2017
Sales tax receivables |  |  |
Canada | $10.6 |  | $6.4 |
Mexico | 17.5 |  | 26.5 |
Other | 3.4 |  | 0.9 |
Concentrate receivable | 2.3 |  | 3.2 |
Other receivables | 6.7 |  | 4.0 |
| $40.5 |  | $41.0 |

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