Note 6. Equity Incentive Plan and Stock-Based Compensation (Details) - Total Recorded Stock-based Compensation Expense (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2013
Dec. 30, 2012
Dec. 25, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense after income taxes $ 30,687 $ 34,363 $ 19,197
Cost of Sales [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense before income taxes 5,900 6,790 3,152
Research and Development Expense [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense before income taxes 9,340 8,696 4,472
Selling, General and Administrative Expenses [Member]
     
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Stock-based compensation expense before income taxes $ 15,447 $ 18,877 $ 11,573