Changes In Shareholders' Equity And Noncontrolling Interests In Subsidiaries (Reconciliation Of Changes In Shareholders' Equity And Noncontrolling Interests In Subsidiaries) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Schedule of Capitalization, Equity [Line Items]
Total stockholders' equity attributable to parent, beginning balance			$ 1,307,299
Noncontrolling interests in subsidiaries, beginning balance			41,126
Total shareholders' equity, beginning balance	$ 1,333,426	$ 1,278,876	1,348,425	$ 1,289,284
Accrual of stock-based compensation	1,204	1,334	5,289	5,042
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			2,458	1,949
Dividend equivalents on RSUs	266	255	802	755
Net income (loss) attributable to parent	34,940	33,273	60,807	48,049
Net income attributable to noncontrolling interest	9,215	7,168	9,015	7,541
Net (income) loss	44,155	40,441	69,822	55,590
Common stock dividends declared	(19,193)	(18,877)	(57,558)	(56,617)
Dividend equivalents on RSUs	(266)	(254)	(802)	(755)
Other comprehensive income (loss)	1,707	15,240	2,455	29,360
Dividends paid to noncontrolling interests	(2,057)	0	(6,733)	(3,695)
Total stockholders' equity attributable to parent, ending balance	1,316,004	1,270,525	1,316,004	1,270,525
Noncontrolling interest in subsidiaries, ending balance	43,238	46,490	43,238	46,490
Total shareholders' equity, ending balance	1,359,242	1,317,015	1,359,242	1,317,015
Universal Corporation [Member]
Schedule of Capitalization, Equity [Line Items]
Total stockholders' equity attributable to parent, beginning balance	1,297,332	1,239,500	1,307,299	1,246,665
Accrual of stock-based compensation	1,204	1,334	5,289	5,042
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			2,458	1,949
Dividend equivalents on RSUs	266	255	802	755
Net income (loss) attributable to parent	34,940	33,273	60,807	48,049
Common stock dividends declared	(19,193)	(18,877)	(57,558)	(56,617)
Dividend equivalents on RSUs	(266)	(254)	(802)	(755)
Other comprehensive income (loss) attributable to parent	1,721	15,294	2,625	29,335
Dividends paid to noncontrolling interests	0	0	0	0
Total stockholders' equity attributable to parent, ending balance	1,316,004	1,270,525	1,316,004	1,270,525
Noncontrolling Interests [Member]
Schedule of Capitalization, Equity [Line Items]
Noncontrolling interests in subsidiaries, beginning balance	36,094	39,376	41,126	42,619
Accrual of stock-based compensation	0	0	0	0
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation			0	0
Dividend equivalents on RSUs	0	0	0	0
Net income attributable to noncontrolling interest	9,215	7,168	9,015	7,541
Common stock dividends declared	0	0	0	0
Dividend equivalents on RSUs	0	0	0	0
Other comprehensive income (loss) attributable to noncontrolling interest	(14)	(54)	(170)	25
Dividends paid to noncontrolling interests	(2,057)	0	(6,733)	(3,695)
Noncontrolling interest in subsidiaries, ending balance	$ 43,238	$ 46,490	$ 43,238	$ 46,490