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Inventory - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Inventory valuation reserves $ 11.6 $ 11.2  
Cost of materials and other      
Lower of cost or market gains (charges) $ (0.4) $ (1.9) $ (8.5)