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Commitments and Contingencies (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Oct. 10, 2018
Loss Contingencies [Line Items]      
Estimate of possible loss   $ 28.0  
Litigation settlement $ 8.5    
Accrual 19.5    
Case No. 653091/2018      
Loss Contingencies [Line Items]      
Estimate of possible loss     $ 8.0
Pending Litigation      
Loss Contingencies [Line Items]      
Estimate of possible loss 7.0    
Accounts Payable and Accrued Liabilities      
Loss Contingencies [Line Items]      
Accrual 19.5    
Accounts Receivable      
Loss Contingencies [Line Items]      
Receivable 19.5    
General and Administrative Expense | Pending Litigation      
Loss Contingencies [Line Items]      
Accrual $ 7.0