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Reclamation and Environmental Obligation - Schedule of Variables of Weighted Average (Details) | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Environmental Remediation Obligations [Abstract] |  |
Weighted-average credit adjusted risk free rate | 9.90% | 9.93%
Weighted-average inflation rate | 2.53% | 2.53%

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- Definition Weighted-average risk-free rate used to discount claim liability for financial guarantee insurance contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-9 + Details
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