Note 11. Derivative Financial Instruments (Details) - Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Foreign Exchange Forward Contracts        
Net gain reclassified from accumulated OCI into income (ineffective portion) (3) $ 2,415 $ 0 $ 2,415 [1]  
Designated as Hedging Instrument [Member]
       
Foreign Exchange Forward Contracts        
Net unrealized gain recognized in OCI (1) 6,317 [2] 217 [2] 14,060 217
Net gain reclassified from accumulated OCI into income (effective portion)(2) (2,835) [3]    [3] (4,588) [3]    [3]
Net gain reclassified from accumulated OCI into income (ineffective portion) (3) (2,415) [4]    [4] (2,415) [4]    [4]
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income (2) [5] (32) [5] (8) [5] (118) [5]
Not Designated as Hedging Instrument [Member] | Foreign Currency Forward Contracts [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income (2,349) [6] (2,173) [6] 240 [6] (223) [6]
Not Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
       
Net gain (loss) recognized in income        
Net gain (loss) recognized in income $ 197 [6]    [6] $ 197 [6]    [6]
[1] Reclassified into Interest and Other Income line item of the Condensed Consolidated Statement of Operations (See Note 11 for further details on the ineffective portion of cash flow hedges).
[2] Net change in the fair value of the effective portion classified in other comprehensive income (OCI)
[3] Effective portion classified as net product revenue
[4] Classified in interest income and other
[5] Classified in interest expense
[6] Classified in interest and other income (expense)