Property, Plant, and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	$ 2,575.8	$ 2,358.6
Depreciation and amortization expense	144.1	142.2	$ 104.7
Capital and facility leases, at cost	723.9	724.1
Accumulated amortization of capital and facility leases	61.7	47.9
United States
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	1,813.8	1,692.9
Europe
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, net	$ 762.0	$ 665.7