v2.4.0.8
Employee Benefit Plans (Tables)
12 Months Ended
Dec. 28, 2013
Compensation Related Costs [Abstract]  
Summary of the stock option activity under the plans
  Years Ended
  December 28, December 29, December 31,
  2013 2012 2011
                
    Weighted    Weighted    Weighted
    Average    Average    Average
    Exercise   Exercise   Exercise
  Shares Price Shares Price Shares Price
Outstanding at beginning of year  2,138 $48.61 4,059 $44.53 5,012 $43.05
Granted  -  - -  - 10  69.45
Exercised  (815)  43.86 (1,890)  40.06 (942)  36.84
Forfeited  -  - (31)  36.02 (21)  48.35
Outstanding at end of year  1,323 $51.53 2,138 $48.61 4,059 $44.53
                
Options exercisable at end of year  1,323 $51.53 2,137 $48.62 3,778 $43.47
Weighted-average assumptions used in determining the fair values of stock options using the black-scholes valuation model
  2011
Expected dividend yield  0%
Expected stock price volatility  20%
Risk-free interest rate  2.13%
Expected life of options (years)  4.75 
Intrinsic values
  As of
  December 28, December 29, December 31,
  2013 2012 2011
Stock options outstanding  $83,252 $67,044 $80,821
Stock options exercisable   83,252  66,964  79,202
Status of non-vested restricted shares/units
          
  Time-Based Restricted Stock/Units
    Weighted Average    
    Grant Date Fair  Intrinsic Value
  Shares/Units Value Per Share  Per Share
Outstanding at beginning of period  1,018 $56.87    
Granted  217  90.23    
Vested  (280)  35.59    
Forfeited  (29)  70.06    
Outstanding at end of period  926 $70.70  $114.43
          
  Performance-Based Restricted Stock/Units
    Weighted Average    
    Grant Date Fair  Intrinsic Value
  Shares/Units Value Per Share  Per Share
Outstanding at beginning of period  1,315 $53.27    
Granted  149  83.34    
Vested  (363)  56.55    
Forfeited  (23)  74.78    
Outstanding at end of period  1,078 $59.85  $114.43