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Commitment and Contingencies - Accrued Environmental Remediation Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Environmental liabilities    
Other Commitments [Line Items]    
Accrued environmental remediation liabilities $ 70,163 $ 72,003
Asset retirement obligations    
Other Commitments [Line Items]    
Accrued environmental remediation liabilities $ 4,440 $ 4,634