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Closure and Impairment Charges (Tables)
3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Details of Impairment of Long-Lived Assets Held and Used by Asset
Closure and long-lived tangible asset impairment charges for the three months ended March 31, 2021 were as follows:
Three Months Ended
 March 31,
20212020
(In millions)
Closure charges$1.9 $(0.0)
Long-lived tangible asset impairment0.1 0.0 
Total closure and long-lived asset impairment charges$2.0 $(0.0)
Schedule of Restructuring Reserve by Type of Cost
Closure and long-lived tangible asset impairment charges for the three months ended March 31, 2021 were as follows:
Three Months Ended
 March 31,
20212020
(In millions)
Closure charges$1.9 $(0.0)
Long-lived tangible asset impairment0.1 0.0 
Total closure and long-lived asset impairment charges$2.0 $(0.0)