Other Income and Expense (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other Income and Expense
Interest income		$ 0.8	$ 1.2	$ 1.5	$ 1.7
Foreign currency transactions	[1]	(1.2)	(0.2)	(1.0)	(0.5)
Net periodic benefit cost	[2]	(1.1)	(0.9)	(2.3)	(1.7)
Total other (expense) income - net		$ (1.5)	$ 0.1	$ (1.8)	$ (0.5)

[1] Foreign currency transactions primarily consist of foreign currency transaction gains and losses on the re-measurement or settlement of foreign currency-denominated assets and liabilities, including intercompany loans and transactions denominated in a foreign currency, along with gains and losses on certain foreign currency exchange contracts.

[2] Net periodic benefit cost for the Company’s pension and postretirement plans is exclusive of service cost.