Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2023	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Property, plant and equipment	$ 1,199.9	$ 1,274.8
Less: accumulated depreciation	(896.1)	(960.3)
Net property, plant and equipment	303.8	314.5
Land [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment	15.6	16.4
Buildings and Improvements [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment	$ 260.1	264.0
Buildings and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	10 years
Buildings and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	40 years
Machinery and Equipment [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment	$ 790.9	853.3
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	15 years
Office Equipment [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment	$ 92.7	93.6
Office Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	3 years
Office Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment, depreciable lives	10 years
Construction in Progress [Member]
Property, Plant and Equipment [Abstract]
Property, plant and equipment	$ 40.6	$ 47.5