Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Foreign currency translation: [Abstract]
Net gain (loss) on foreign currency translation, net of income taxes		$ (1,531)	$ (3,166)	$ (6,367)
Pension and other postretirement benefit plan: [Abstract]
Pension and other postretirement benefit plans, net of income taxes		(1,666)	3,089	5,943
Total accumulated other comprehensive income (loss) at end of period		(81,585)	(77,057)	(84,311)
Forward Foreign Currency Exchange Contracts [Member]
Cash flow hedges: [Abstract]
hedges, net of income tax		(5,515)	1,320	3,993
Interest Rate Swap [Member]
Cash flow hedges: [Abstract]
hedges, net of income tax		3,235	6,113	18,620
Accumulated Translation Adjustment [Member]
Foreign currency translation: [Abstract]
Balance at beginning of year		(44,233)	(40,965)	(35,135)
Net gain (loss) on foreign currency translation, net of income taxes		(1,531)	(3,166)	(6,367)
Less: Net loss (gain) on foreign currency translation attributable to noncontrolling interests		949	(102)	537
Other comprehensive income (loss) attributable to Universal Corporation, net of income taxes		(582)	(3,268)	(5,830)
Balance at end of period		(44,815)	(44,233)	(40,965)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Forward Foreign Currency Exchange Contracts [Member]
Cash flow hedges: [Abstract]
Balance at beginning of year		4,899	3,579	(414)
Net gain (loss) on derivative instruments, net of income taxes		(187)	2,562	6,679
Reclassification of net (gain) loss to earnings	[1]	(5,328)	(1,242)	(2,686)
hedges, net of income tax		(5,515)	1,320	3,993
Balance at end of period		(616)	4,899	3,579
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax		17	(1,160)	(2,199)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax		1,718	389	1,115
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Interest Rate Swap [Member]
Cash flow hedges: [Abstract]
Balance at beginning of year		5,253	(860)	(19,480)
Net gain (loss) on derivative instruments, net of income taxes		11,340	7,220	12,402
Reclassification of net (gain) loss to earnings	[2]	(8,105)	(1,107)	6,218
hedges, net of income tax		3,235	6,113	18,620
Balance at end of period		8,488	5,253	(860)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax		(4,035)	(2,583)	(3,249)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax		2,884	396	(1,628)
Accumulated Defined Benefit Plans Adjustment [Member]
Pension and other postretirement benefit plan: [Abstract]
Balance at beginning of year		(42,976)	(46,065)	(52,008)
Gains arising during period, net of income taxes	[3]	(430)	1,947	2,799
Amortization included in earnings, net of income taxes	[4]	(1,236)	1,142	3,144
Pension and other postretirement benefit plans, net of income taxes		(1,666)	3,089	5,943
Balance at end of period		(44,642)	(42,976)	(46,065)
Taxes on losses (gains) arising during the period		149	(370)	(297)
Taxes on amortization included in net income		$ 339	$ (223)	$ (298)

[1] Gains (losses) on foreign currency cash flow hedges related to forecast purchases of tobacco and crop input sales are reclassified from accumulated other comprehensive income (loss) to cost of goods sold when the tobacco is sold to customers. See Note 11 for additional information.

[2] Gain (loss) on interest rate cash flow hedges is reclassified from accumulated other comprehensive income (loss) to interest expense when the related interest payments are made on the debt for open interest rate swap agreements or as amortized to interest expense over the period to original maturity for terminated swap agreements. See Note 11 for additional information.

[3] These items arise from the remeasurement of the assets and liabilities of the Company's defined benefit pension and other postretirement benefit plans. Those remeasurements are made on an annual basis at the end of the fiscal year. See Note 13 for additional information.

[4] This accumulated other comprehensive income (loss) component is included in the computation of net periodic benefit cost. See Note 13 for additional information.