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Share-Based Compensation (Details Textuals) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Jan. 01, 2012
Jan. 02, 2011
Jan. 03, 2010
Jan. 01, 2012
2005 Incentive Plan [Member]
Jan. 01, 2012
2005 Employee Stock Purchase Plan [Member]
Jan. 02, 2011
2005 Employee Stock Purchase Plan [Member]
Jan. 03, 2010
2005 Employee Stock Purchase Plan [Member]
Jan. 01, 2012
Pliant 2007 Plan [Member]
May 24, 2011
Pliant 2007 Plan [Member]
Jan. 01, 2012
mSystems 1996 Plan [Member]
Nov. 19, 2006
mSystems 1996 Plan [Member]
Jan. 01, 2012
Matrix 2005 Plan [Member]
Jan. 13, 2006
Matrix 2005 Plan [Member]
Jan. 01, 2012
Stock Option And Stock Appreciation Rights [Member]
Jan. 01, 2012
Restricted Stock units [Member]
Jan. 01, 2012
Employee stock purchase plan [Member]
Compensation and Benefits                                
Expiration date of share-based compensation plan (in years)       7       10   10   10        
Stock Plan Termination Date                 May 24, 2011   Nov. 19, 2006   Jan. 13, 2006      
Award vesting period under incentive plan (in years)       4                        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized         10,000,000                      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant         5,654,199                      
Common Stock, Capital Shares Reserved for Future Issuance       37,045,436                        
Additional Common Stock Added to Reserve Kept for Incentive Plan       2,345,436                        
Maximum number of shares by which share reserve can be increased for issuance under incentive plan       10,000,000                        
Stock Issued During Period, Shares, Employee Stock Purchase Plans         613,452 966,288 1,158,909                  
Purchase price of common stock under employee stock purchase plan as a percentage of fair market value of share         85.00%                      
Total unrecognized compensation cost, net of forfeitures, related to awards granted to employees                           $ 62.0 $ 53.2  
Total unrecognized compensation expense for ESPP                               0.8
Share-based compensation expense capitalized in inventory 1.4 0.9                            
Cumulative Non Cash Adjustment To Increase Share Based Compensation     16.2                          
Total Compensation Cost Not yet Recognized, Period for Recognition (in years)                           2.5 2.7 0.1
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost $ 17.3