Property, Plant and Equipment and Mining Properties, Net (Narrtive) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Mineral Interest	$ 1,683,564	$ 833,564
Accrued liabilities and other	87,238	156,609
Other long-term liabilities	$ 55,960	$ 38,201