Leases Leases, Schedule of Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease assets	$ 25.8	$ 0.0
Finance Lease, Right-of-Use Asset	6.6
Right-of-Use Asset, Total	32.4
Operating Lease, Liability, Current	3.9
Finance Lease, Liability, Current	1.2
Long-term portion of operating lease liabilities	25.2	$ 0.0
Finance Lease, Liability, Noncurrent	5.4
Lease Liability, Total	$ 35.7