Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy (USD $)
In Thousands, unless otherwise specified
Dec. 29, 2013
Dec. 30, 2012
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets $ 7,399 $ 20,723
Financial liabilities 313 810
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,906 1,181
Money Market Funds [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,906 [1] 1,181 [2]
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets   14,980
Commercial Paper [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets   14,980 [2]
Foreign Exchange Option [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,493 3,032
Foreign Exchange Option [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,493 [1] 3,032
Auction Rate Securities [Member] | Fair Value, Inputs, Level 2 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets   1,530
Auction Rate Securities [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets   1,530
Fair Value, Inputs, Level 1 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,906 1,181
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Forward [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial liabilities 313 296
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial liabilities   514
Fair Value, Inputs, Level 2 [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial assets 3,493 19,542
Financial liabilities 313 810
Foreign Exchange Forward [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial liabilities 313 296
Interest Rate Swap [Member]
    
Note 15. Fair Value Measurements (Details) - Financial Assets and Liabilities Categorized Based Upon the Fair Value Hierarchy [Line Items]    
Financial liabilities   $ 514
[1] Total cash and cash equivalents, short-term investments of $311.5 million as of December 29, 2013 includes cash of $282.2 million held in operating accounts, $3.9 million in money market funds, $11.4 million held in FDIC-insured certificates of deposit and $14.0 million in time deposit accounts.
[2] Total cash and cash equivalents, short-term investments of $313.9 million as of December 30, 2012 includes cash of $258.1 million held in operating accounts, $1.2 million in money market funds, $39.6 million held in FDIC-insured certificates of deposit and $15.0 million in commercial paper.