Income Taxes (Schedule Of Components of Income Tax Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Income Tax Disclosure [Abstract]
United States, current	$ (3,465)	$ 2,871	$ 18,052
State and local, current	682	(2,064)	2,290
Foreign, current	57,355	53,582	59,051
Total, current	54,572	54,389	79,393
United States, deferred	1,746	4,796	(43)
State and local, deferred	279	444	(226)
Foreign, deferred	9,769	1,530	(775)
Deferred income tax expense (benefit)	11,794	6,770	(1,044)
Total	$ 66,366	$ 61,159	$ 78,349