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v3.26.1

Exploration properties (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2026 USD ($)
Mineral Interests Exploration [Roll Forward] |
Balance at December 31, 2025 | $ 224,145
Acquisition costs | 1,494
Divestment (Note 12) | (13,607)
Balance at March 31, 2026 | 212,032
Santa Cruz |
Mineral Interests Exploration [Roll Forward] |
Balance at December 31, 2025 | 177,523
Acquisition costs | 0
Divestment (Note 12) | 0
Balance at March 31, 2026 | 177,523
Tintic |
Mineral Interests Exploration [Roll Forward] |
Balance at December 31, 2025 | 30,703
Acquisition costs | 0
Divestment (Note 12) | 0
Balance at March 31, 2026 | 30,703
Alacrán |
Mineral Interests Exploration [Roll Forward] |
Balance at December 31, 2025 | 13,607
Acquisition costs | 0
Divestment (Note 12) | (13,607)
Balance at March 31, 2026 | 0
Other |
Mineral Interests Exploration [Roll Forward] |
Balance at December 31, 2025 | 2,312
Acquisition costs | 1,494
Divestment (Note 12) | 0
Balance at March 31, 2026 | $ 3,806

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- Definition Mineral properties, net of adjustments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition The cash outflow from the acquisition of a mineral right which is the right to extract a mineral from the earth or to receive payment, in the form of royalty, for the extraction of minerals. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
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