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Inventory (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure of inventories [Abstract] |
Schedule of Inventory |
| December 31, 2020 | December 31, 2019
In-process precious metals | $72.7 |  | $59.0 |
Ore in stockpiles | 30.8 |  | 33.4 |
Parts and supplies | 53.0 |  | 49.2 |
Dore, and refined precious metals | 9.9 |  | 11.0 |
| 166.4 |  | 152.6 |
Less: Long-term inventory | (17.9) |  | (25.7) |
| $148.5 |  | $126.9 |

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