Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2019	Mar. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 696.4	$ 729.2
Less accumulated depreciation	(313.4)	(332.7)
Property, plant and equipment, net	383.0	396.5
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	25.7	30.6
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	227.5	229.9
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	350.9	370.5
Hardware and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	64.4	62.6
Construction in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 27.9	$ 35.6