Derivative Instruments And Hedging Activities (Summary Of Notional Amounts And Fair Values Of Derivative Fair Values On Condensed Consolidated Balance Sheet) (Details) (Forward Contracts [Member], USD $) In Thousands	Sep. 30, 2011		Mar. 31, 2011
Derivatives, Fair Value [Line Items]
Notional Amounts	$ 13,220	[1]	$ 10,943	[1]
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	18		158
Accrued Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 412		$ 92

[1] Notional amounts represent the gross contract/notional amount of the derivatives outstanding.