Restructuring Costs (Cumulative Restructuring Costs) (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 1,434	$ 0	$ 2,150
Asset Impairment Charges		2,089	0	8,307
Restructuring and impairment costs	[1]	3,523	0	10,457
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Employee termination benefits		1,615	0	2,174
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other restructuring costs		$ (181)	$ 0	$ (24)

[1] Restructuring and impairment costs are excluded from reportable segment operating income, but are included in consolidated operating income in the consolidated statements of income (see Note 4)