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Stockholders' Equity And Benefit Plans (Narrative) (Details) (USD $)
0 Months Ended 12 Months Ended
Jan. 01, 2012
Dec. 31, 2011
years
Jan. 01, 2011
Jan. 02, 2010
Jan. 03, 2009
Jan. 06, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock, shares authorized   100,000,000        
Common stock, par value   $ 0.01        
Preferred stock, shares authorized   1,000,000        
Preferred stock, par value   $ 0.01        
Preferred stock, shares issued   0 0      
Preferred stock, shares outstanding   0 0      
Repurchase and retirement of common stock, value       $ 0    
Stock repurchase programs authorized, amount   330,000,000        
Repurchase of common stock, shares     3,100,000      
Repurchase of common stock under repurchase programs, value   (270,882,000) (199,222,000)      
Minimum year of service   1        
Minimum hours worked   1,000        
Matches percentage of employee contributions 50.00% 50.00%        
Maximum percentage of employees compensation 6.00% 6.00%        
Minimum percentage of employees compensation   4.00%        
Percentage of employee contributions between 4% and 6% of employee compensation   25.00%        
Matching contributions made by the Company to 401(k) Plan, total   1,600,000 1,300,000 186,000    
Additional matching contributions percentage of employee compensation   15.00%        
Percentage additional matching contributions   0.00% 0.00% 0.00%    
Maximum percentage of eligible participants salary   50.00%        
Percentage of bonus of eligible participants   100.00%        
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the incentive plans   22,000,000        
Compensation cost expected to be recognized over weighted-average period (In years)   2.5        
Restricted stock units value       100,000    
Vesting period of nonemployee directors restricted stock units   one        
Options granted became exercisable on first anniversary of the date of grant   50.00%        
Options granted became exercisable on second and third anniversary of the date of grant   25.00%        
Outstanding option awards   1,220,000 1,400,000 2,811,000 2,858,000  
Shares issued to employees forfeited       0 0  
Excess tax benefits from stock-based compensation   9,980,000 11,961,000 1,166,000    
Fair value of restricted stock and restricted stock units, vested   14,700,000 5,800,000 2,400,000    
Asset related to invested balances recorded in intangibles and other assets   2,900,000        
Liability related to participants' invested balances recorded in accrued expenses other   2,000,000        
Stock contributed to restricted stock plan and reissued by the company to employees           44,200
Maximum [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Maximum percentage of employees compensation   3.00%        
2008 LTIP [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock reserved for issuance   4,685,030        
Original vesting periods, minimum years   three        
Original vesting periods, maximum years   five        
Outstanding option awards   524,501        
Nonemployee Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Outstanding option awards   63,500        
Period Authorized Fiscal Year 2009 No Termination Date [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Repurchase of common stock, shares       0    
Stock repurchase programs authorized, amount       20,000,000    
Common stock repurchase activity termination date       Completed    
Repurchase of common stock, shares     500,000      
Repurchase of common stock under repurchase programs, value     20,000,000      
Common Stock [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock, shares issued   68,370,020 67,881,522 66,900,000 66,502,000  
Repurchase and retirement of common stock, shares       (45,000)    
Repurchase and retirement of common stock, value       0    
Repurchase of common stock, shares   0 0      
Repurchase of common stock under repurchase programs, value   $ 0 $ 0      
Stock contributed to restricted stock plan and reissued by the company to employees   127,000 163,000 129,000