Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012
Assets:
Money market funds	$ 1,526	$ 174,551	$ 1,524
Trading securities associated with deferred compensation plans	18,423	19,168	18,437
Forward foreign currency exchange contracts	2	0	354
Total financial assets measured and reported at fair value	19,951	193,719	20,315
Liabilities:
Guarantees of bank loans to tobacco growers	3,800	4,235	1,994
Interest rate swap agreements	1,142	1,679	1,779
Forward foreign currency exchange contracts	4,794	1,141	2,236
Total financial liabilities measured and reported at fair value	9,736	7,055	6,009
Level 1 [Member]
Assets:
Money market funds	0	0	0
Trading securities associated with deferred compensation plans	18,423	19,168	18,437
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	18,423	19,168	18,437
Liabilities:
Guarantees of bank loans to tobacco growers	0	0	0
Interest rate swap agreements	0	0	0
Forward foreign currency exchange contracts	0	0	0
Total financial liabilities measured and reported at fair value	0	0	0
Level 2 [Member]
Assets:
Money market funds	1,526	174,551	1,524
Trading securities associated with deferred compensation plans	0	0	0
Forward foreign currency exchange contracts	2	0	354
Total financial assets measured and reported at fair value	1,528	174,551	1,878
Liabilities:
Guarantees of bank loans to tobacco growers	0	0	0
Interest rate swap agreements	1,142	1,679	1,779
Forward foreign currency exchange contracts	4,794	1,141	2,236
Total financial liabilities measured and reported at fair value	5,936	2,820	4,015
Level 3 [Member]
Assets:
Money market funds	0	0	0
Trading securities associated with deferred compensation plans	0	0	0
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	0	0	0
Liabilities:
Guarantees of bank loans to tobacco growers	3,800	4,235	1,994
Interest rate swap agreements	0	0	0
Forward foreign currency exchange contracts	0	0	0
Total financial liabilities measured and reported at fair value	$ 3,800	$ 4,235	$ 1,994