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Restructuring and Impairment Activities (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense $ 4.2 $ 6.0 $ 1.6 $ 0.1 $ 1.7 $ 1.6 $ 0.4 $ 0.0 $ 11.9 $ 3.7 $ 1.7
Impairment expense                 11.9 3.7  
Other restructuring costs                 4.9 0.0 0.0
Write down value spare parts and consignment inventory                 2.0    
Accelerated depreciation and amortization                 2.9 0.0 0.0
Restructuring and related cost, expected cost remaining 2.2               2.2    
Severance                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                 11.6 2.6 1.3
Impairment expense                 6.7    
AMS                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                 0.5 1.1 1.5
AMS | Severance | United States                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                     1.1
AMS | Asset Impairment Charge | United States and China                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                   1.1  
AMS | Asset Impairment Charge | United States                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                     0.4
EP                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                 11.3 2.6 0.2
Restructuring incurred to date $ 6.9               6.9    
EP | Severance | France, Poland, And The United States                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                 $ 4.6    
EP | Severance | France                      
Restructuring Cost and Reserve [Line Items]                      
Restructuring and impairment expense                   $ 2.6 $ 0.2