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Closure and Impairment Charges - Long-lived Tangible Asset Impairment and Closure Charges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]    
Closure charges $ 1.9 $ (0.0)
Long-lived tangible asset impairment 0.1 0.0
Total closure and long-lived asset impairment charges $ 2.0 $ (0.0)