Other Income and Expense (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expense [Abstract]
Interest income		$ 0.1	$ 0.1	$ 0.4	$ 0.3
Foreign currency transactions	[1]	0.2	0.7	0.9	(0.7)
Net periodic benefit cost	[2]	(0.8)	(0.7)	(2.3)	(2.1)
Equity in earnings of non-consolidated affiliate		0.0	0.0	0.0	0.2	[3]
Total other (expense) income - net		$ (0.5)	$ 0.1	$ (1.0)	$ (2.3)

[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.

[3] The Company sold its ownership interest in NEX during the second quarter of fiscal 2020. See Note 1 for additional information.