Derivative Instruments And Hedging Activities (Summary Of Gains (Losses) Associated With Derivative Financial Instruments) (Details) (Derivatives Not Designated As Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Other, Net [Member]
Gain/(Loss) Recognized In Other Income, Net	$ (1,902)	$ 9,766
Foreign Currency Contracts [Member] | Other, Net [Member]
Gain/(Loss) Recognized In Other Income, Net	(21,114)	18,123
Other Foreign-currency-denominated Transactions [Member]
Gain/(Loss) Recognized In Other Income, Net	$ 19,212	$ (8,357)