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STOCK-BASED COMPENSATION (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 25, 2010
Dec. 26, 2009
Stock Based Compensation      
Shares of common stock available for issuance 621,576    
Number of Shares      
Exercised (in shares) (306,218) (43,104) (186,120)
Stock option plans
      
Stock Based Compensation      
Compensation expense (included in selling, general and administrative expenses) 5,623 4,893 4,046
Tax benefits associated with compensation expense 2,137 1,859 1,558
Unrecognized stock option compensation expense 10,011    
Weighted average period over which unrecognized stock option compensation cost would be recognized (in years) 2.26    
Assumptions used in estimating fair value of each option grant      
Expected volatility (as a percent) 32.50% 31.80% 31.80%
Risk-free interest rate (as a percent) 0.88% 1.62% 2.26%
Expected life from vesting date (in years) 3.0 3.0 3.0
Dividend yield (as a percent) 0.82% 0.81% 0.66%
Number of Shares      
Balance at the beginning of the period (in shares) 1,222,894 1,126,311 1,112,777
Granted (in shares) 214,206 229,703 242,707
Exercised (in shares) (306,218) (109,711) (186,120)
Forfeited (in shares) (52,169) (23,409) (43,053)
Balance at the end of the period (in shares) 1,078,713 1,222,894 1,126,311
Options vested or expected to vest (in shares) 1,048,182 1,187,408 1,085,735
Options exercisable (in shares) 618,844 708,014 581,145
Weighted Average Exercise Price      
Balance at the beginning of the period (in dollars per share) 66.22 59.06 49.36
Granted (in dollars per share) 85.40 85.12 78.65
Exercised (in dollars per share) (61.57) (32.09) (26.28)
Forfeited (in dollars per share) (76.12) (71.11) (64.84)
Balance at the end of the period (in dollars per share) 70.88 66.22 59.06
Options vested or expected to vest (in dollars per share) 70.52 65.84 58.60
Options exercisable (in dollars per share) 61.57 58.05 47.76
Weighted Average Remaining Contractual Term      
Options outstanding (in years) 4.68 4.86 5.12
Options vested or expected to vest (in years) 4.63 4.81 5.07
Options exercisable (in years) 3.56 3.91 4.02
Aggregate Intrinsic Value      
Options outstanding 22,382 25,703 26,454
Options vested or expected to vest 22,113 25,401 25,998
Options exercisable 18,441 20,614 20,229
Other option disclosures      
Weighted average per share fair value of option granted 23.32 23.69 22.97
Stock option plans | Maximum
      
Stock Based Compensation      
Vesting period of options 6 years    
Expiration period of grant (in years) P10Y    
Stock option plans | Minimum
      
Stock Based Compensation      
Vesting period of options 3 years    
Expiration period of grant (in years) P6Y