SUBSEQUENT EVENTS (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 07, 2016 USD ($) ft² item	Oct. 01, 2016 USD ($)	Oct. 03, 2015 USD ($)	Oct. 01, 2016 USD ($)	Oct. 03, 2015 USD ($)
Subsequent event
Net sales | $		$ 393,654	$ 407,170	$ 1,158,836	$ 1,225,557
Net income | $		$ 22,445	$ 12,636	103,143	$ 25,423
Subsequent Events | Allied
Subsequent event
Purchase price | $	$ 60,000
Post-closing adjustment | $	$ 4,000
Subsequent Events | Allied | Manufacturing Facility, Vineland, New Jersey
Subsequent event
Area of facility | ft²	20,000
Number of cook lines | item	2
Number of raw slicing lines | item	3
Number of breakaway steak line | item	1
Subsequent Events | Allied | Manufacturing Facility, New
Subsequent event
Area of facility | ft²	70,000
Number of cook lines | item	4
Number of raw slicing lines | item	7
Number of breakaway steak line | item	7
Allied
Subsequent event
Net sales | $				44,498
Net income | $				$ 3,305