Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets:
Money market funds	$ 335	$ 1,992	$ 380
Trading securities associated with deferred compensation plans	14,794	15,735	15,703
Forward foreign currency exchange contracts	3,559	1,572	7,313
Total financial assets measured and reported at fair value	18,688	19,299	23,396
Liabilities:
Business Combination, Contingent Consideration, Liability, Noncurrent		2,532	2,532
Interest Rate Derivative Liabilities, at Fair Value	16,658	25,719	33,950
Forward foreign currency exchange contracts	5,250	1,822	1,235
Total financial liabilities measured and reported at fair value	21,908	30,073	37,717
Net Asset Value [Member]
Assets:
Money market funds	335	1,992	380
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	335	1,992	380
Liabilities:
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	14,794	15,735	15,703
Forward foreign currency exchange contracts	0	0	0
Total financial assets measured and reported at fair value	14,794	15,735	15,703
Liabilities:
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	3,559	1,572	7,313
Total financial assets measured and reported at fair value	3,559	1,572	7,313
Liabilities:
Business Combination, Contingent Consideration, Liability, Noncurrent		0	0
Interest Rate Derivative Liabilities, at Fair Value	16,658	25,719	33,950
Forward foreign currency exchange contracts	5,250	1,822	1,235
Total financial liabilities measured and reported at fair value	21,908	27,541	35,185
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:
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	$ 0	$ 2,532	$ 2,532