Other Financial Information - Property, Plant And Equipment, Net (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 611.6	$ 592.5
Less: Accumulated depreciation	(204.7)	(164.3)
Property, plant and equipment, net	406.9	428.2
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	300.5	280.7
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	253.8	243.2
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	47.1	46.7
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 10.2	$ 21.9