Property, Plant and Equipment and Mining Properties, Net (Narrtive) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Property, Plant and Equipment [Line Items]
Mineral Interest	$ 9,912,250	$ 1,683,564
Accrued liabilities and other	201,866	212,213
Other long-term liabilities	$ 87,189	$ 80,519

Mineral interest.

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- Definition

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
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+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Name Accounting Standards Codification
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