Leases, Schedule of Lease Cost Classification (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	$ 1.8	$ 5.6
Short-term lease cost	0.3	0.8
Amortization of leased assets	0.5	1.2
Interest on lease liabilities	0.0	0.2
Total lease cost	$ 2.6	$ 7.8