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Reconciliation of Basic and Diluted Shares (Details 1)
In Thousands
3 Months Ended 6 Months Ended
Jul. 03, 2011
Jul. 04, 2010
Jul. 03, 2011
Jul. 04, 2010
Stock options [Member]
       
Earnings Per Share, Diluted, Other Disclosures [Abstract]        
Anti-dilutive securities 38,338 71,868 44,130 70,505
Restricted stock unit awards [Member]
       
Earnings Per Share, Diluted, Other Disclosures [Abstract]        
Anti-dilutive securities 1,445 306 93 401
Convertible notes [Member]
       
Earnings Per Share, Diluted, Other Disclosures [Abstract]        
Anti-dilutive securities   12,324   19,314