Segment and Geographic Information, Property, Plant and Equipment by Geographical Area (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	$ 448.0	$ 484.7
Reportable Geographical Components [Member] | United States [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	114.6	117.7
Reportable Geographical Components [Member] | China [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	56.8	57.6
Reportable Geographical Components [Member] | Hungary [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	55.4	55.3
Reportable Geographical Components [Member] | Mexico [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	50.0	56.3
Reportable Geographical Components [Member] | Italy [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	49.8	52.4
Reportable Geographical Components [Member] | Germany [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	27.0	32.8
Reportable Geographical Components [Member] | Austria [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	26.0	36.9
Reportable Geographical Components [Member] | Other [Member]
Segment Reporting Information, Additional Information [Abstract]
Total property, plant and equipment	$ 68.4	$ 75.7