Derivative Instruments, (Gain) Loss by Hedging Relationship, by Income Statement Location (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Derivative Instruments, (Gain) Loss [Line Items]
Total Loss (Gain) Recognized in Continuing Operations	$ (0.1)	$ (1.3)	$ (0.5)
Cost of Sales [Member] | Commodity Derivatives [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Total Loss (Gain) Recognized in Continuing Operations	(0.7)	(0.2)	(0.5)
Other Income (Expense) - Net [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Total Loss (Gain) Recognized in Continuing Operations	$ 0.6	$ (1.1)	$ 0.0