Lease, Cost (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Lease, Cost [Abstract]
Operating Lease, Expense	$ 8.0	$ 15.9
Short-term Lease, Expense	0.4	0.8
Variable Lease, Expense	1.2	2.3
Total lease expense	$ 9.6	$ 19.0