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RESTRUCTURING - Liability Incurred for Restructuring Plan (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Dec. 31, 2016
Restructuring Reserve [Roll Forward]          
Beginning balance $ 6,544 $ 0 $ 5,340 $ 0 $ 0
Restructuring charges 5,769 14,473 41,818 14,473  
Cash Payments 6,752 1,300 37,177 1,300  
Non-cash Items 2,611 12,523 7,031 12,523  
Ending balance 2,950 650 2,950 650 5,340
Store closures          
Restructuring Reserve [Roll Forward]          
Beginning balance 4,893 0 4,546 0 0
Restructuring charges 2,482 12,523 8,223 12,523  
Cash Payments 4,237 0 6,415 0  
Non-cash Items 2,320 12,523 5,536 12,523  
Ending balance 818 0 818 0 4,546
Professional services and other          
Restructuring Reserve [Roll Forward]          
Beginning balance 116 0 794 0 0
Restructuring charges 765 1,950 2,195 1,950  
Cash Payments 48 1,300 2,156 1,300  
Non-cash Items 291 0 291 0  
Ending balance 542 650 542 650 794
Severance and employee-related benefits          
Restructuring Reserve [Roll Forward]          
Beginning balance 1,535 0 0 0 0
Restructuring charges 2,522 0 31,400 0  
Cash Payments 2,467 0 28,606 0  
Non-cash Items 0 0 1,204 0  
Ending balance $ 1,590 $ 0 $ 1,590 $ 0 $ 0