Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Derivative Instruments, Gains (Losses) Recognized (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Designated
Derivative Instruments
Gain (loss) reclassified from AOCI	$ (0.6)	$ 0.1	$ 1.0
Non-Designated Derivative
Derivative Instruments
Gain (loss) recognized	1.8	(2.4)	(1.9)
Other Comprehensive Income \| Designated
Derivative Instruments
Gain (loss) recognized	0.4	(0.9)	0.1
Commodity Derivatives \| Other Comprehensive Income \| Designated
Derivative Instruments
Gain (loss) recognized	0.3	0.2	(0.3)
Commodity Derivatives \| Cost of Sales \| Designated
Derivative Instruments
Gain (loss) reclassified from AOCI	0.3		(0.3)
Foreign Exchange Contracts \| Cost of Sales \| Designated
Derivative Instruments
Gain (loss) reclassified from AOCI	(0.4)		0.0
Foreign Exchange Contracts \| Cost of Sales \| Other Comprehensive Income \| Designated
Derivative Instruments
Gain (loss) recognized	(0.1)	(0.3)	0.1
Foreign Exchange Contracts \| Net Sales \| Designated
Derivative Instruments
Gain (loss) reclassified from AOCI	(0.5)	0.1	1.3
Foreign Exchange Contracts \| Net Sales \| Non-Designated Derivative
Derivative Instruments
Gain (loss) recognized	(0.1)	0.0	(0.9)
Foreign Exchange Contracts \| Net Sales \| Other Comprehensive Income \| Designated
Derivative Instruments
Gain (loss) recognized	0.2	(0.8)	0.3
Foreign Exchange Contracts \| Other expense - net \| Non-Designated Derivative
Derivative Instruments
Gain (loss) recognized	$ 1.9	$ (2.4)	$ (1.0)