Derivative Financial Instruments (Details 2) (Cash Flow Hedging [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Dec. 31, 2011	Jan. 01, 2011
Interest And Other Expense, Net [Member]
Effect of derivative instruments located on condensed consolidated Statements of Income
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective portion)	$ 703	$ 2,085	$ 5,806	$ 1,561
Amount of Gain (Loss) Recorded (Ineffective portion)	0	(3)	(5)	5
Foreign Exchange Contracts [Member]
Effect of derivative instruments located on condensed consolidated Statements of Income
Amount of Gain (Loss) Recognized in OCI on Derivative (Effective portion of cash flow hedging)	$ (3,347)	$ (1,585)	$ (12,131)	$ 5,903