Derivative Financial Instruments (Details 2) (Cash Flow Hedging [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Interest And Other Expense, Net [Member]
Effect of derivative instruments located on condensed consolidated Statements of Income
Amount of Gain Reclassified from Accumulated OCI into Income (Effective portion)	$ 4,659	$ 3,705
Amount of Gain (Loss) Recorded (Ineffective portion)	(5)	7
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)	(8,320)	6,776
Natural Gas Swap 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)	$ (5)