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Stock-Based Compensation (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Stock-based compensation costs      
Share based compensation cost before tax $ 31,176 $ 36,115 $ 40,324
Income tax benefit 4,911 3,957 5,462
Share based compensation cost after tax 26,265 32,158 34,862
Cost of revenues
     
Stock-based compensation costs      
Share based compensation cost before tax 1,206 1,319 1,435
Research and development
     
Stock-based compensation costs      
Share based compensation cost before tax 12,602 14,872 17,017
Selling, general and administrative
     
Stock-based compensation costs      
Share based compensation cost before tax $ 17,368 $ 19,924 $ 21,872