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Commitments and Contingencies - Narrative (Details)
lawsuit in Thousands
9 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
claimant
lawsuit
carrier
Mar. 31, 2013
USD ($)
Dec. 31, 2002
defendant
release
Loss Contingencies [Line Items]      
Indemnification resulting from business acquisition, amount (in excess of) $ 900,000,000    
Number of carriers, if insolvent, could impact coverage | carrier 1    
Environmental Issue | Ellsworth Industrial Park Site      
Loss Contingencies [Line Items]      
Number of releases, or threatened releases, chlorinated solvents (or more) | release     1
Indemnification resulting from business acquisition, percentage of costs paid to date by seller     100.00%
Environmental Issue | Ellsworth Industrial Park Site | Minimum      
Loss Contingencies [Line Items]      
Number of defendants | defendant     10
Asbestos Issue | Stearns      
Loss Contingencies [Line Items]      
Indemnification resulting from business acquisition, percentage of costs paid to date by seller 100.00%    
Number of claimants | claimant 300    
Asbestos Issue | Prager      
Loss Contingencies [Line Items]      
Insurance coverage, percentage of costs paid to date by insurance providers 100.00%    
Asbestos Issue | Falk      
Loss Contingencies [Line Items]      
Indemnification resulting from business acquisition, percentage of costs paid to date by seller 100.00%    
Number of claimants | claimant 100    
Asbestos Issue | Zurn      
Loss Contingencies [Line Items]      
Number of claimants | claimant 7,000    
Number of lawsuits | lawsuit 5    
Time frame of claims expected to be filed 10 years    
Insurance for asbestos claims $ 40,000,000.0    
Estimated claim payments made over specified period $ 30,000,000.0    
Time frame of estimated claims disbursements 10 years    
Damages from Product Defects | Zurn      
Loss Contingencies [Line Items]      
Claim settlement funding period   7 years  
Litigation settlement   $ 20,000,000.0