Other Financial Information - Property, Plant And Equipment, Net (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 646.7	$ 648.4
Less: Accumulated depreciation	(233.7)	(220.8)
Property, plant and equipment, net	413.0	427.6
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	334.9	322.4
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	252.2	255.5
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	46.6	47.4
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 13.0	$ 23.1