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		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Schedule of Capitalization, Equity [Line Items]
Total shareholders' equity, beginning balance	$ 1,499,589	$ 1,443,499	$ 1,500,538	$ 1,478,923
Accrual of stock-based compensation	906	1,942	8,481	6,583
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	3,710	318	7,727	3,715
Dividend equivalents on RSUs	215	288	529	600
Net income (loss) attributable to parent	34,169	25,940	42,666	26,070
Net income attributable to noncontrolling interest	634	8,029	6,504	5,075
Net (income) loss	34,803	33,969	49,170	31,145
Common stock dividends declared	(20,429)	(20,020)	(40,835)	(40,008)
Dividend equivalents on RSUs	(215)	(288)	(529)	(600)
Other comprehensive income (loss)	(149)	(438)	8,586	(5,964)
Dividends paid to noncontrolling interests	(6,860)	(630)	(14,063)	(8,960)
Total shareholders' equity, ending balance	1,504,150	1,458,004	1,504,150	1,458,004
Universal Corporation [Member]
Schedule of Capitalization, Equity [Line Items]
Total shareholders' equity, beginning balance	1,458,917	1,413,457	1,458,556	1,437,207
Accrual of stock-based compensation	906	1,942	8,481	6,583
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	3,710	318	7,727	3,715
Dividend equivalents on RSUs	215	288	529	600
Net income (loss) attributable to parent	34,169	25,940	42,666	26,070
Common stock dividends declared	(20,429)	(20,020)	(40,835)	(40,008)
Dividend equivalents on RSUs	(215)	(288)	(529)	(600)
Other comprehensive income (loss) attributable to parent	129	(435)	8,841	(5,571)
Dividends paid to noncontrolling interests	0	0	0	0
Total shareholders' equity, ending balance	1,469,982	1,420,566	1,469,982	1,420,566
Noncontrolling Interests [Member]
Schedule of Capitalization, Equity [Line Items]
Total shareholders' equity, beginning balance	40,672	30,042	41,982	41,716
Accrual of stock-based compensation	0	0	0	0
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	0	0	0	0
Dividend equivalents on RSUs	0	0	0	0
Net income attributable to noncontrolling interest	634	8,029	6,504	5,075
Common stock dividends declared	0	0	0	0
Dividend equivalents on RSUs	0	0	0	0
Other comprehensive income (loss) attributable to noncontrolling interest	(278)	(3)	(255)	(393)
Dividends paid to noncontrolling interests	(6,860)	(630)	(14,063)	(8,960)
Total shareholders' equity, ending balance	$ 34,168	$ 37,438	$ 34,168	$ 37,438