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Fixed Assets, Mineral Leaseholds, and Asset Retirement Obligations (Depreciation and Depletion Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Fixed Assets And Asset Retirement Obligations [Abstract]        
Depreciation expense $ 73,341 $ 63,913 $ 143,026 $ 133,486
Depletion expense $ 1,340 $ 1,268 $ 2,486 $ 2,149