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Financial Instruments - Exposure to Credit Risk (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of credit risk exposure [line items]      
Cash and investments $ 862.8 $ 399.6 $ 107.0
Credit risk      
Disclosure of credit risk exposure [line items]      
Cash and investments 862.8 399.6  
Trade accounts receivable 31.2 17.5  
Current advances to suppliers $ 6.7 $ 10.4