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Supplemental Cash Flow Information (Other Non-cash Items) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of cash flow statement [Line Items] |  |
Unrealized gain on non-hedging derivatives | $ (0.3) | $ 0.4
Reduction of obligation to renounce flow-through exploration expenditures | 2.7 | 0.0
Employee contributions | 2.8 | 0.0
Adjustments for interest income | 1.9 | 1.3
Adjustments for increase (decrease) in insurance, reinsurance and investment contract liabilities | (2.1) | (2.0)
Distribution of Share Based Compensation | 8.5 | 5.7
Loss on disposal of assets | 0.7 | 1.5
Other | 2.8 | 3.4
Other adjustments for non-cash items | (6.7) | (3.1)
Silver Stream |  |
Disclosure of cash flow statement [Line Items] |  |
Gain (loss) on fair value adjustment | 2.6 | 0.0
Milestone Payments |  |
Disclosure of cash flow statement [Line Items] |  |
Unrealized gain on non-hedging derivatives | (1.1) | 0.0
Provision for decommissioning, restoration and rehabilitation costs [member] |  |
Disclosure of cash flow statement [Line Items] |  |
Reclamation expenses | $ 0.4 | $ 1.2

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