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Stock Plans and Stock-Based Compensation Performance Based Stock Award Program (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Jun. 29, 2013
2013 PSU [Member]
Mar. 29, 2014
2013 PSU [Member]
Jun. 28, 2014
2014 PSU [Member]
Mar. 29, 2014
2014 PSU [Member]
Jun. 28, 2014
Performance Based Stock Award Program [Member]
Jun. 28, 2014
Performance Based Stock Award Program [Member]
Restricted Stock and Performance Units, Additional Disclosure                    
Max PSU Shares           327,694   429,646,000    
Granted (in dollars per share)         $ 44.47   $ 61,250.00 $ 67,820.00    
Granted (in shares)         163,847,000   5,800,000 214,823,000    
Stock-based compensation expense $ 8,222 $ 6,281 $ 14,881 $ 12,184         $ 2,620 $ 3,654