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Contingencies (Details)
$ in Millions
1 Months Ended 3 Months Ended
Jun. 30, 2018
Party
Nov. 30, 2019
USD ($)
Mar. 31, 2016
Party
mi
Apr. 02, 2022
USD ($)
contaminate
Jan. 01, 2022
USD ($)
Loss Contingencies [Line Items]          
Area of land | mi     8.3    
Estimate of possible loss       $ 1,380.0  
Number of parties | Party 100   100    
Loss related to litigation settlement   $ 0.6      
Number of contaminants | contaminate       8  
Insurance Environmental and Litigation Matters [Member]          
Loss Contingencies [Line Items]          
Reserves for insurance, environmental and litigation contingencies       $ 80.5 $ 78.4
Insurance settlements receivable       31.8 $ 31.8
Pending Litigation [Member]          
Loss Contingencies [Line Items]          
Estimate of possible loss       $ 165.0  
Number of parties | Party 40        
Plant, One [Member]          
Loss Contingencies [Line Items]          
Loss related to litigation settlement   0.3      
Plant, Two [Member]          
Loss Contingencies [Line Items]          
Loss related to litigation settlement   $ 0.3