SEGMENT INFORMATION - Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Revenue by product category
Net sales	$ 370,687	$ 391,878	$ 765,182	$ 818,387
Sandwiches
Revenue by product category
Net sales	117,077	108,891	240,896	231,541
Sandwich components
Revenue by product category
Net sales	135,254	152,738	271,940	310,069
Other entrees and snacks
Revenue by product category
Net sales	$ 118,356	$ 130,249	$ 252,346	$ 276,777