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Goodwill and Intangible Assets - Government Grants (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets    
Gross carrying amount $ 530.6 $ 519.5
Government grants    
Finite-Lived Intangible Assets    
Gross carrying amount 7.0 7.5
Government grants | Current    
Finite-Lived Intangible Assets    
Gross carrying amount 0.5 0.5
Government grants | Long-term    
Finite-Lived Intangible Assets    
Gross carrying amount $ 6.5 $ 7.0