Note 9. Derivative Financial Instruments (Detail) - Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 25, 2011
Sep. 30, 2012
Sep. 25, 2011
Foreign exchange forward contracts        
Net gain recognized in OCI (1) $ (1,639) $ 0 $ (1,422) $ 0
Net loss reclassified from accumulated OCI into income (2) 538   538  
Designated as Hedging Instrument [Member]
       
Foreign exchange forward contracts        
Net gain recognized in OCI (1) (1,639) [1]    [1] (1,422) [1]    [1]
Net loss reclassified from accumulated OCI into income (2) 538 [2]    [2] 538 [2]    [2]
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
       
Net loss (gain) recognized in income        
Net loss (gain) recognized in income (16) [3] (138) [3] (134) [3] (1,286) [3]
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member]
       
Net loss (gain) recognized in income        
Net loss (gain) recognized in income $ 1,221 [4] $ (2,636) [4] $ 1,464 [4] $ (4,541) [4]
[1] Net change in the fair value of the effective portion classified in other comprehensive income (OCI)
[2] Effective portion classified as net product revenue
[3] Classified in interest expense
[4] Classified in interest income and other