Operating Segments (Operating Results For The Company's Reportable Segments) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Sales and other operating revenues		$ 653,581	$ 668,771	$ 1,426,451	$ 1,421,188
Deduct: Equity in pretax earnings of unconsolidated affiliates (3)	[1]	(6,404)	(4,495)	(6,636)	(5,625)
Restructuring and impairment costs	[2]	0	(178)	0	(3,860)
Consolidated operating income		59,679	83,207	111,209	118,533
Flue-Cured And Burley Leaf Tobacco Operations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues		573,803	589,180	1,251,371	1,239,243
Consolidated operating income		60,652	82,099	112,509	117,803
Flue-Cured And Burley Leaf Tobacco Operations [Member] | North America [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues		99,452	93,198	211,444	246,669
Consolidated operating income		3,623	1,025	13,887	21,404
Flue-Cured And Burley Leaf Tobacco Operations [Member] | Other Regions [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	[3]	474,351	495,982	1,039,927	992,574
Consolidated operating income	[3]	57,029	81,074	98,622	96,399
Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated operating income		66,083	87,880	117,845	128,018
Other Tobacco Operations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	[4]	79,778	79,591	175,080	181,945
Consolidated operating income	[4]	$ 5,431	$ 5,781	$ 5,336	$ 10,215

[1] Equity in pretax earnings of unconsolidated affiliates is included in segment operating income (Other Tobacco Operations segment), but is reported below consolidated operating income and excluded from that total in the consolidated statements of income and comprehensive income

[2] Restructuring and impairment costs are excluded from segment operating income, but are included in consolidated operating income in the consolidated statements of income and comprehensive income.

[3] Includes South America, Africa, Europe, and Asia regions, as well as inter-region eliminations.

[4] Includes Dark Air-Cured, Special Services, and Oriental, as well as inter-company eliminations. Sales and other operating revenues for this reportable segment include limited amounts for Oriental because the business is accounted for on the equity method and its financial results consist principally of equity in the pretax earnings of an unconsolidated affiliate.