Leases Lease, Cost (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($) Rate	Sep. 30, 2019 USD ($) Rate
Lease, Cost [Abstract]
Operating Lease, Cost	$ 6.7	$ 21.3
Sublease Income	(0.3)	(1.1)
Lease, Cost	6.4	20.2
Finance Lease, Principal Payments	$ 7.1	$ 21.7
Operating Lease, Weighted Average Remaining Lease Term	7 years	7 years
Operating Lease, Weighted Average Discount Rate, Percent | Rate	4.69%	4.69%