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Fair Values of Forward Foreign Currency Exchange Contracts (Detail) (Foreign Exchange Forward, Not Designated as Hedging Instrument, USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Mar. 31, 2012
Apr. 02, 2011
Prepaid Expenses and Other Current Assets
     
Derivatives, Fair Value [Line Items]      
Fair value of derivative assets $ 2,460 $ 1,318 $ 745
Accrued Expenses and Other Current Liabilities
     
Derivatives, Fair Value [Line Items]      
Fair value of derivative liabilities $ (605) $ (276) $ (2,293)