Derivative Financial Instruments (Forward Currency Exchange Contracts Outstanding) (Details) (USD $) In Thousands	Jul. 02, 2011	Apr. 02, 2011
Notional amount of foreign currency derivatives	$ 131,740	$ 112,804
Euro [Member]
Notional amount of foreign currency derivatives	40,990	38,787
Singapore Dollar [Member]
Notional amount of foreign currency derivatives	70,383	52,782
Japanese Yen [Member]
Notional amount of foreign currency derivatives	11,265	12,382
British Pound [Member]
Notional amount of foreign currency derivatives	$ 9,102	$ 8,853