STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Stock Based Compensation
Shares of common stock available for issuance	1,234,445
Number of Shares
Exercised (in shares)	(194,627)	(216,105)	(341,090)
Stock option plans
Stock Based Compensation
Compensation expense (included in selling, general and administrative expenses)	4,461	5,194	4,934
Tax benefits associated with compensation expense	1,695	1,974	1,875
Weighted average period over which unrecognized stock option compensation cost would be recognized	2 years 4 months 2 days
Unrecognized stock option compensation expense	10,961
Assumptions used in estimating fair value of each option grant
Expected volatility (as a percent)	32.27%	33.26%	33.76%
Risk-free interest rate (as a percent)	1.43%	1.16%	0.74%
Expected life from vesting date	3 years	3 years	3 years
Dividend yield (as a percent)	0.75%	0.72%	0.77%
Number of Shares
Balance at the beginning of the period (in shares)	795,221	868,992	1,078,713
Granted (in shares)	177,717	155,254	140,007
Exercised (in shares)	(194,627)	(216,105)	(341,090)
Forfeited (in shares)	(9,716)	(12,920)	(8,638)
Balance at the end of the period (in shares)	768,595	795,221	868,992
Options vested or expected to vest (in shares)	746,974	775,237	845,470
Options exercisable (in shares)	450,539	464,377	485,786
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	99.29	84.91	70.88
Granted (in dollars per share)	132.94	144.86	136.01
Exercised (in dollars per share)	(71.67)	(72.17)	(61.53)
Forfeited (in dollars per share)	(126.23)	(129.08)	(84.18)
Balance at the end of the period (in dollars per share)	113.72	99.29	84.91
Options vested or expected to vest (in dollars per share)	113.06	98.41	84.26
Options exercisable (in dollars per share)	97.29	81.73	71.06
Weighted Average Remaining Contractual Term
Options outstanding	4 years 8 months 27 days	4 years 6 months 22 days	4 years 8 months 5 days
Options vested or expected to vest	4 years 8 months 9 days	4 years 6 months 4 days	4 years 7 months 21 days
Options exercisable	3 years 7 months 2 days	3 years 6 months 29 days	3 years 8 months 1 day
Aggregate Intrinsic Value
Options outstanding	15,983	39,994	43,410
Options vested or expected to vest	15,981	39,678	42,765
Options exercisable	15,944	31,508	30,846
Other option disclosures
Weighted average per share fair value of option granted	33.94	37.88	38.17
Stock option plans | Maximum
Stock Based Compensation
Vesting period of options	6 years
Expiration period of grant	10 years
Stock option plans | Minimum
Stock Based Compensation
Vesting period of options	3 years
Expiration period of grant	6 years