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Other (Loss) Gain (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of other gains and losses [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
Holding and Arbitration Costs | (5.0) | (1.6)
Loss on disposal of assets | 0.7 | 1.5
Severance Costs | 0.0 | (0.9)
Other | (2.3) | (2.6)
Other loss | (5.1) | (7.2)
Silver Stream |  |
Disclosure of other gains and losses [Line Items] |  |
Gain (loss) on fair value adjustment | 2.6 | 0.0
Milestone Payments |  |
Disclosure of other gains and losses [Line Items] |  |
Unrealized gain on non-hedging derivatives | (1.1) | 0.0
Holding Costs | $ (1.0) | $ (1.0)

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- Definition The losses on disposals of non-current assets. [Refer: Non-current assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_112_c&doctype=Standard -URIDate 2022-03-24 + Details
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