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Leases - Lease Assets and Liabilities (Details 2) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Lease Liabilities, Current and Noncurrent [Abstract]    
Operating, current $ 16.5  
Finance, current 0.2  
Operating, noncurrent 29.8 $ 0.0
Finance, noncurrent 0.1  
Total Lease Liability 46.6  
Leases [Abstract]    
Operating lease assets 46.2 $ 0.0
Finance Lease Assets 0.3  
Finance lease amortization 0.5  
Total leased assets $ 46.5