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Stockholders' Equity - Ranges of Estimated Values of Stock Options and Performance-Based Stock Options Granted (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 7,643 $ 11,317 $ 23,802 $ 31,684
Stock Compensation Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation expense $ 665 $ 2,553 $ 2,190 $ 7,121
Stock Compensation Plan [Member] | Minimum [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Volatility       65.00%
Risk-free interest rate       0.70%
Expected life       4 years
Estimated fair value       $ 3.75
Stock Compensation Plan [Member] | Maximum [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Volatility       68.00%
Risk-free interest rate       1.00%
Expected life       5 years 3 months 18 days
Estimated fair value       $ 3.76