Income Taxes (Schedule Of Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
United States, current	$ (2,639)	$ 1,110	$ 3,422
State and local, current	377	175	147
Foreign, current	39,578	60,356	36,537
Total, current	37,316	61,641	40,106
United States, deferred	5,713	(20,052)	5,434
State and local, deferred	(4)	68	561
Foreign, deferred	(1,837)	8,852	10,631
Deferred income tax expense (benefit)	3,872	(11,132)	16,626
Total	$ 41,188	$ 50,509	$ 56,732