Pension And Other Postretirement Benefit Plans (Components Of Company's Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5,059	$ 5,192	$ 5,214
Interest cost	9,651	11,943	11,566
Expected return on plan assets	(12,685)	(14,874)	(15,504)
Settlement cost	0	14,101	0
Net amortization and deferral	(79)	15	659
Net periodic benefit cost	1,946	16,377	1,935
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	65	75	239
Interest cost	1,038	1,062	1,049
Expected return on plan assets	(42)	(53)	(63)
Settlement cost	0	0	0
Net amortization and deferral	(730)	(662)	(791)
Net periodic benefit cost	$ 331	$ 422	$ 434

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

UNIVERSAL CORP /VA/ 10-K