Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022
Assets:
Money market funds	$ 145	$ 400	$ 334
Trading securities associated with deferred compensation plans	11,238	11,698	10,845
Interest Rate Derivative Assets, at Fair Value	12,361		13,959
Forward foreign currency exchange contracts	1,081	8,422	3,539
Total financial assets measured and reported at fair value	24,825	20,520	28,677
Liabilities:
Interest Rate Derivative Liabilities, at Fair Value		3,077
Forward foreign currency exchange contracts	14	1,325	181
Total financial liabilities measured and reported at fair value	14	4,402	181
Net Asset Value [Member]
Assets:
Money market funds	145	400	334
Trading securities associated with deferred compensation plans	0	0	0
Interest Rate Derivative Assets, at Fair Value	0		0
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	145	400	334
Liabilities:
Interest Rate Derivative Liabilities, at Fair Value		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	11,238	11,698	10,845
Interest Rate Derivative Assets, at Fair Value	0		0
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	11,238	11,698	10,845
Liabilities:
Interest Rate Derivative Liabilities, at Fair Value		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
Interest Rate Derivative Assets, at Fair Value	12,361		13,959
Forward foreign currency exchange contracts	1,081	8,422	3,539
Total financial assets measured and reported at fair value	13,442	8,422	17,498
Liabilities:
Interest Rate Derivative Liabilities, at Fair Value		3,077
Forward foreign currency exchange contracts	14	1,325	181
Total financial liabilities measured and reported at fair value	14	4,402	181
Level 3 [Member]
Assets:
Money market funds	0	0	0
Trading securities associated with deferred compensation plans	0	0	0
Interest Rate Derivative Assets, at Fair Value	0		0
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	0	0	0
Liabilities:
Interest Rate Derivative Liabilities, at Fair Value		0
Forward foreign currency exchange contracts	0	0	0
Total financial liabilities measured and reported at fair value	$ 0	$ 0	$ 0