Other Financial Information - Property, Plant And Equipment, Net (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 659.9	$ 648.4
Less: Accumulated depreciation	(250.7)	(220.8)
Property, plant and equipment, net	409.2	427.6
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	341.3	322.4
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	255.0	255.5
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	46.9	47.4
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 16.7	$ 23.1