STOCK-BASED COMPENSATION - Summary of Status of Stock Options Outstanding (Details)	12 Months Ended
	Dec. 26, 2020 $ / shares shares
Options outstanding and exercisable by price range
Options Outstanding, Number (in shares) | shares	399,565
Options Exercisable, Number (in shares) | shares	254,498
Range of exercise price per share from $104.47 and $112.08
Options outstanding and exercisable by price range
Options Outstanding, Number (in shares) | shares	120,194
Options Outstanding, Weighted Average Remaining Contractual Life	3 years 11 months 26 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 109.58
Options Exercisable, Number (in shares) | shares	79,796
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 108.31
Range of exercise price per share from $123.87 and $132.84
Options outstanding and exercisable by price range
Options Outstanding, Number (in shares) | shares	26,282
Options Outstanding, Weighted Average Remaining Contractual Life	11 months 19 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 132.48
Options Exercisable, Number (in shares) | shares	26,282
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 132.48
Range of exercise price per share from $142.67 to $164.35
Options outstanding and exercisable by price range
Options Outstanding, Number (in shares) | shares	253,089
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 8 months 15 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 158.05
Options Exercisable, Number (in shares) | shares	148,420
Options Exercisable Weighted Average Exercise Price (in dollars per share)	$ 156.04
Minimum | Range of exercise price per share from $104.47 and $112.08
Options outstanding and exercisable by price range
Exercise price range, low end of range (in dollars per share)	104.47
Minimum | Range of exercise price per share from $123.87 and $132.84
Options outstanding and exercisable by price range
Exercise price range, low end of range (in dollars per share)	123.87
Minimum | Range of exercise price per share from $142.67 to $164.35
Options outstanding and exercisable by price range
Exercise price range, low end of range (in dollars per share)	142.67
Maximum | Range of exercise price per share from $104.47 and $112.08
Options outstanding and exercisable by price range
Exercise price range, high end of range (in dollars per share)	112.08
Maximum | Range of exercise price per share from $123.87 and $132.84
Options outstanding and exercisable by price range
Exercise price range, high end of range (in dollars per share)	132.84
Maximum | Range of exercise price per share from $142.67 to $164.35
Options outstanding and exercisable by price range
Exercise price range, high end of range (in dollars per share)	$ 168.80