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Mineral Interests and Property, Plant and Equipment, net - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment [Abstract]      
Mineral interests $ 147,700 $ 147,700  
Mineral properties, accumulated depletion 75,500 67,300  
Depreciation and depletion 153,982 127,356 $ 115,279
Capitalized interest $ 12,700 $ 12,100 $ 1,400