Derivative Instruments and Hedging Activities (Effect on Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Mar. 31, 2012
Derivatives designated as hedging instruments [Member] | Foreign currency contracts [Member] | Other liabilities (current) [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 639	$ 1,272
Derivatives designated as hedging instruments [Member] | Foreign currency contracts [Member] | Other assets (current) [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	523	323
Derivatives not designated as hedging instruments [Member] | Interest rate swaps [Member] | Other liabilities (current) [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	$ 2,968	$ 1,773