Derivative Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Apr. 02, 2011
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	$ 146,661	$ 112,804
Singapore Dollar [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	60,925	52,782
Euro [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	41,467	38,787
Indian rupee [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	18,943
British Pound [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	14,250	8,853
Japanese Yen [Member]
Forward currency exchange contracts outstanding
Notional amount of foreign currency derivatives	$ 11,076	$ 12,382