Derivative Financial Instruments (Details) (USD $) In Thousands	Oct. 01, 2011	Apr. 02, 2011
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	$ 129,770	$ 112,804
Euro [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	40,479	38,787
Singapore Dollar [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	62,809	52,782
Japanese Yen [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	11,863	12,382
British Pound [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	$ 14,619	$ 8,853