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Contingencies (Details) - USD ($)
$ in Millions
Oct. 27, 2010
Apr. 24, 2018
Mar. 31, 2018
Loss Contingencies [Line Items]      
Litigation settlement payment $ 3.0    
Product Quality Matters      
Loss Contingencies [Line Items]      
Loss contingency accrual     $ 6.3
Product Quality Matters | Minimum      
Loss Contingencies [Line Items]      
Loss contingency, estimate of possible loss     6.3
Product Quality Matters | Maximum      
Loss Contingencies [Line Items]      
Loss contingency, estimate of possible loss     $ 14.0
Subsequent Event | Civil Penalty | Maximum      
Loss Contingencies [Line Items]      
Loss contingency, estimate of possible loss   $ 30.0  
Loss contingency, possible loss suspension   $ 15.0