Earnings Per Share (Computation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator for basic earnings per share
Net income attributable to Universal Corporation	$ 31,446	$ 26,167	$ 44,625	$ 29,744
Denominator for basic earnings per share
Weighted average shares outstanding	25,152,864	25,334,661	25,108,724	25,370,783
Basic earnings per share	$ 1.25	$ 1.03	$ 1.78	$ 1.17
Numerator for diluted earnings per share
Net income attributable to Universal Corporation	$ 31,446	$ 26,167	$ 44,625	$ 29,744
Denominator for diluted earnings per share:
Weighted average shares outstanding	25,152,864	25,334,661	25,108,724	25,370,783
Employee share-based awards	184,856	211,885	202,568	218,375
Denominator for diluted earnings per share	25,337,720	25,546,546	25,311,292	25,589,158
Diluted earnings per share	$ 1.24	$ 1.02	$ 1.76	$ 1.16