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Environmental (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Loss Contingencies [Line Items]          
Environmental remediation costs $ 0.7 $ 2.2 $ 2.4 $ 15.4  
Accrued environmental liability 188.4   188.4   $ 195.4
Other Noncurrent Liabilities          
Loss Contingencies [Line Items]          
Accrued environmental liability $ 161.2   $ 161.2   $ 161.4