Segment and Geographic Information - Geographic Information (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information
Property, plant and equipment, net	$ 414.5	$ 397.8
United States
Segment Reporting Information
Property, plant and equipment, net	223.9	222.2
Foreign
Segment Reporting Information
Property, plant and equipment, net	190.6	175.6
Italy
Segment Reporting Information
Property, plant and equipment, net	69.9	56.4
China
Segment Reporting Information
Property, plant and equipment, net	61.5	64.2
Czech Republic
Segment Reporting Information
Property, plant and equipment, net	29.0	25.8
Germany
Segment Reporting Information
Property, plant and equipment, net	16.1	15.5
India
Segment Reporting Information
Property, plant and equipment, net	$ 14.1	$ 13.7