Note 17. Derivative Financial Instruments (Details) - Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Foreign Exchange Forward Contracts      
Net gain reclassified from accumulated OCI into income (ineffective portion) (1)    [1] $ (2,415) [1]    [1]
Foreign Currency Forward Contracts [Member] | Cost of Sales [Member] | Designated as Hedging Instrument [Member]      
Foreign Exchange Forward Contracts      
Net loss reclassified from accumulated OCI 8,974    
Foreign Currency Forward Contracts [Member] | Selling, General and Administrative Expenses [Member] | Designated as Hedging Instrument [Member]      
Foreign Exchange Forward Contracts      
Net loss reclassified from accumulated OCI 360    
Foreign Currency Forward Contracts [Member] | Research and Development Expense [Member] | Designated as Hedging Instrument [Member]      
Foreign Exchange Forward Contracts      
Net loss reclassified from accumulated OCI 695    
Foreign Currency Forward Contracts [Member] | Designated as Hedging Instrument [Member]      
Foreign Exchange Forward Contracts      
Net unrealized gain (loss) recognized in Other Comprehensive Income (OCI) (7,623) 15,714 741
Net loss (gain) reclassified from accumulated OCI into net sales (effective portion) (978) (13,298) (740)
Foreign Currency Forward Contracts [Member] | Not Designated as Hedging Instrument [Member]      
Net gain (loss) recognized in income      
Net gain (loss) recognized in income 5,685 [1] (10,207) [1] 1,511 [1]
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]      
Net gain (loss) recognized in income      
Net gain (loss) recognized in income    [2] $ (8) [2] $ (144) [2]
[1] Classified in interest income and other, net
[2] Classified in interest expense