Earnings Per Share (Computation Of Basic And Diluted Earnings (Loss) Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Numerator for basic earnings per share
Net income attributable to Universal Corporation	$ 86,577	$ 87,410	$ 71,680
Denominator for basic earnings per share
Weighted average shares outstanding	24,764,177	24,656,009	24,982,259
Basic earnings per share	$ 3.50	$ 3.55	$ 2.87
Numerator for diluted earnings per share
Net income attributable to Universal Corporation	$ 86,577	$ 87,410	$ 71,680
Denominator for diluted earnings per share:
Weighted average shares outstanding	24,764,177	24,656,009	24,982,259
Effect of dilutive securities (if conversion or exercise assumed) Employee share-based awards	158,719	132,557	124,092
Denominator for diluted earnings per share	24,922,896	24,788,566	25,106,351
Diluted earnings per share	$ 3.47	$ 3.53	$ 2.86