NON-CONTROLLING INTERESTS - Narrative (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 24, 2020	Jun. 30, 2021	Jun. 24, 2020
Noncontrolling Interest [Line Items]
Non-controlling interest holders' weighted average ownership percentage	7.00%	7.70%	7.00%	8.00%
Employee Stock Option
Noncontrolling Interest [Line Items]
Units acquired during the period (in shares)	31,116	63,601	386,965	141,504