Derivative Instruments, Gains (Losses) Recognized (Details) - USD ($) $ in Millions		12 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments [Abstract]
Gain (loss) reclassified from AOCI	[1]	$ (0.1)	$ (0.5)
Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) reclassified from AOCI		(0.1)	(0.5)	$ (0.2)
Non-Designated Derivative [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		0.6	(0.2)	(1.0)
Other Comprehensive Income [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		2.1	(2.5)	0.3
Commodity Derivatives [Member] | Cost of Sales [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) reclassified from AOCI		0.0	(0.8)	(0.4)
Commodity Derivatives [Member] | Cost of Sales [Member] | Other Comprehensive Income [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		2.2	(2.6)	(0.3)
Foreign Exchange Contracts [Member] | Cost of Sales [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) reclassified from AOCI		(0.1)	0.4	0.6
Foreign Exchange Contracts [Member] | Cost of Sales [Member] | Other Comprehensive Income [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		(0.1)	0.2	1.0
Foreign Exchange Contracts [Member] | Net Sales [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) reclassified from AOCI		0.0	(0.1)	(0.4)
Foreign Exchange Contracts [Member] | Net Sales [Member] | Non-Designated Derivative [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		0.0	(0.1)	(0.7)
Foreign Exchange Contracts [Member] | Net Sales [Member] | Other Comprehensive Income [Member] | Designated [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		0.0	(0.1)	(0.4)
Foreign Exchange Contracts [Member] | Other Income (Expense) - Net [Member] | Non-Designated Derivative [Member]
Derivative Instruments [Abstract]
Gain (loss) recognized		$ 0.6	$ (0.1)	$ (0.3)

[1] Amounts represent net gains and losses associated with cash flow hedges that were reclassified to net earnings. See Note 19 for additional information regarding derivative instruments.