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NON-CONTROLLING INTERESTS - Narrative (Details) - shares
3 Months Ended 9 Months Ended
Sep. 27, 2017
Sep. 28, 2016
Sep. 27, 2017
Sep. 28, 2016
Noncontrolling Interest [Line Items]        
Non-controlling interest holders' weighted average ownership percentage 29.10% 33.90% 29.70% 38.50%
Units acquired during the period (in shares)     1,009,727  
Number of units redeemed (in shares)     685,800 4,706,663
Redemption or Exchange of Units        
Noncontrolling Interest [Line Items]        
Units acquired during the period (in shares)     685,800 4,706,663
Employee Stock Option        
Noncontrolling Interest [Line Items]        
Units acquired during the period (in shares)     323,927 101,837