Pension And Other Postretirement Benefit Plans (Funded Status In Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets (included in Pension asset)	$ 9,984	$ 12,667
Noncurrent liability (reported as Pensions and other postretirement benefits)	(42,769)	(52,890)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets (included in Pension asset)	9,984	12,667
Current liability (included in Accrued expenses)	(3,352)	(1,135)
Noncurrent liability (reported as Pensions and other postretirement benefits)	(26,078)	(32,569)
Amounts recognized in the consolidated balance sheets	(19,446)	(21,037)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets (included in Pension asset)	0	0
Current liability (included in Accrued expenses)	(1,768)	(1,930)
Noncurrent liability (reported as Pensions and other postretirement benefits)	(16,691)	(20,321)
Amounts recognized in the consolidated balance sheets	$ (18,459)	$ (22,251)