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Leases - Supplemental Cash Flow Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
Leases [Abstract]  
Operating Cash Flows from Operating Leases (Fixed Payments) $ 20.0
Operating Cash Flows from Operating Leases (Liability Reduction) 17.6
Financing Cash Flows from Finance Leases 0.7
Right-of-Use Assets Obtained in Exchange for New Operating Lease Liabilities $ 25.9