Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019
Assets:
Money market funds	$ 4,013	$ 4,011	$ 77,229
Trading securities associated with deferred compensation plans	13,963	12,635	16,356
Forward foreign currency exchange contracts	720	314	2,864
Total financial assets measured and reported at fair value	18,696	16,960	96,449
Liabilities:
Guarantees of bank loans to tobacco growers	100	103	785
Business Combination, Contingent Consideration, Liability, Current	0	4,173
Business Combination, Contingent Consideration, Liability, Noncurrent	2,532	2,532
Interest Rate Derivative Liabilities, at Fair Value	39,022	37,163	16,158
Forward foreign currency exchange contracts	2,092	15,842	65
Total financial liabilities measured and reported at fair value	43,746	59,813	17,008
Net Asset Value [Member]
Assets:
Money market funds	4,013	4,011	77,229
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	4,013	4,011	77,229
Liabilities:
Guarantees of bank loans to tobacco growers	0	0	0
Business Combination, Contingent Consideration, Liability, Current	0	0
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Interest Rate Derivative Liabilities, at Fair Value	0	0	0
Forward foreign currency exchange contracts	0	0	0
Total financial liabilities measured and reported at fair value	0	0	0
Level 1 [Member]
Assets:
Money market funds	0	0	0
Trading securities associated with deferred compensation plans	13,963	12,635	16,356
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	13,963	12,635	16,356
Liabilities:
Guarantees of bank loans to tobacco growers	0	0	0
Business Combination, Contingent Consideration, Liability, Current	0	0
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Interest Rate Derivative Liabilities, at Fair Value	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	0	0	0
Trading securities associated with deferred compensation plans	0	0	0
Forward foreign currency exchange contracts	720	314	2,864
Total financial assets measured and reported at fair value	720	314	2,864
Liabilities:
Guarantees of bank loans to tobacco growers	0	0	0
Business Combination, Contingent Consideration, Liability, Current	0	0
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Interest Rate Derivative Liabilities, at Fair Value	39,022	37,163	16,158
Forward foreign currency exchange contracts	2,092	15,842	65
Total financial liabilities measured and reported at fair value	41,114	53,005	16,223
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	100	103	785
Business Combination, Contingent Consideration, Liability, Current	0	4,173
Business Combination, Contingent Consideration, Liability, Noncurrent	2,532	2,532
Interest Rate Derivative Liabilities, at Fair Value	0	0	0
Forward foreign currency exchange contracts	0	0	0
Total financial liabilities measured and reported at fair value	$ 2,632	$ 6,808	$ 785