Operating Segments (Operating Results For The Company's Reportable Segments) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Sales and other operating revenues		$ 456,942	$ 456,382	$ 752,417	$ 731,801
Deduct: Equity in pretax earnings of unconsolidated affiliates	[1]	(1,260)	(846)	(1,130)	(230)
Restructuring and impairment costs	[2]	(3,682)	0	(3,682)	(2,389)
Consolidated operating income		43,328	37,284	35,326	31,988
Flue-Cured And Burley Leaf Tobacco Operations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues		399,365	420,453	650,063	646,426
Consolidated operating income		45,873	37,985	35,704	33,554
Flue-Cured And Burley Leaf Tobacco Operations [Member] | North America [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues		80,789	49,421	153,471	97,993
Consolidated operating income		13,531	3,783	20,379	7,199
Flue-Cured And Burley Leaf Tobacco Operations [Member] | Other Regions [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	[3]	318,576	371,032	496,592	548,433
Consolidated operating income	[3]	32,342	34,202	15,325	26,355
Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated operating income		48,270	38,130	40,138	34,607
Other Tobacco Operations [Member]
Segment Reporting Information [Line Items]
Sales and other operating revenues	[4]	57,577	35,929	102,354	85,375
Consolidated operating income	[4]	$ 2,397	$ 145	$ 4,434	$ 1,053

[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 its financial results consist principally of equity in the pretax earnings of an unconsolidated affiliate.