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STOCK-BASED COMPENSATION (Tables)
 12 Months Ended
Dec. 28, 2013
STOCK-BASED COMPENSATION  
Schedule of assumptions used in estimating fair value of each option grant

  2013   2012   2011

Expected volatility

   33.26%   33.76%   32.50%

Risk-free interest rate

   1.16%   0.74%   0.88%

Expected life from vesting date

   3.0 yrs   3.0 yrs   3.0 yrs

Dividend yield

   0.72%   0.77%   0.82%
Summary of activity of stock plans

Following is a summary of the activity of the stock plans during 2011, 2012 and 2013:

 
   Number of
Shares		   Weighted
Average
Exercise
Price		   Weighted
Average
Remaining
Contractual
Term		   Aggregate
Intrinsic
Value		  

Outstanding at December 25, 2010

     1,222,894   $ 66.22              

Granted

     214,206     85.40              

Exercised

     (306,218 )   (61.57 )            

Forfeited

     (52,169 )   (76.12 )            
                         
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Outstanding at December 31, 2011

     1,078,713   $ 70.88     4.68   $ 22,382  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options vested or expected to vest at December 31, 2011

     1,048,182   $ 70.52     4.63     22,113  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options exercisable at December 31, 2011

     618,844   $ 61.57     3.56     18,441  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

        The weighted average per share fair value of options granted during 2011 was $23.32.

 
   Number of
Shares		   Weighted
Average
Exercise
Price		   Weighted
Average
Remaining
Contractual
Term		   Aggregate
Intrinsic
Value		  

Outstanding at December 31, 2011

     1,078,713   $ 70.88              

Granted

     140,007     136.01              

Exercised

     (341,090 )   (61.53 )            

Forfeited

     (8,638 )   (84.18 )            
                         
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Outstanding at December 29, 2012

     868,992   $ 84.91     4.68   $ 43,410  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options vested or expected to vest at December 29, 2012

     845,470   $ 84.26     4.64     42,765  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options exercisable at December 29, 2012

     485,786   $ 71.06     3.67     30,846  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

        The weighted average per share fair value of options granted during 2012 was $38.17.

 
   Number
of
Shares		   Weighted
Average
Exercise
Price		   Weighted
Average
Remaining
Contractual
Term		   Aggregate
Intrinsic
Value		  

Outstanding at December 29, 2012

     868,992   $ 84.91              

Granted

     155,254     144.86              

Exercised

     (216,105 )   (72.17 )            

Forfeited

     (12,920 )   (129.08 )            
                         
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Outstanding at December 28, 2013

     795,221   $ 99.29     4.56   $ 39,994  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options vested or expected to vest at December 28, 2013

     775,237   $ 98.41     4.51     39,678  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

Options exercisable at December 28, 2013

     464,377   $ 81.73     3.58     31,508  
                       
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                       

        The weighted average per share fair value of options granted during 2013 was $37.88.
Summary of status of stock options outstanding

Following is a summary of the status of stock options outstanding at December 28, 2013:

 
   Outstanding and Exercisable By Price Range  
 
   Options Outstanding   Options Exercisable  
 
   Exercise Price
Range		   Number   Weighted
Average
Remaining
Contractual
Life		   Weighted
Average
Exercise
Price		   Number   Weighted
Average
Exercise
Price		  
    $20.53 - 53.09     53,199   1.39 years   $ 31.34     38,499   $ 23.77  
    $57.46 - 86.72     446,370   3.73 years     80.80     372,481     80.49  
    $105.44 - 151.45     295,652   6.37 years     139.45     53,397     132.24  
                               
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
          795,221               464,377        
                               
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
                               
Schedule of non-vested stock and restricted stock units
  2013   2012   2011  

Shares issued

     47,271     27,293     47,417  

Weighted-average per share price on grant date

   $ 146.72   $ 132.21   $ 88.26  

Compensation expense

   $ 3,667   $ 2,835   $ 2,004