STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total reclassification for the period	$ (251)	$ 155
Amount Reclassified from Accumulated Other Comprehensive Loss [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total before tax	(403)	248
Tax benefit (expense)	152	(93)
Total reclassification for the period	(251)	155
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Selling, general and administrative expenses [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Realized gain on sale of securities	133	290
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Union Plan [Member] | Cost of sales [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	(19)	0
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Legacy Gold Kist Plans [Member] | Selling, general and administrative expenses [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	(356)	(42)
Amount Reclassified from Accumulated Other Comprehensive Loss [Member] | Legacy Gold Kist Plans [Member] | Cost of sales [Member]
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Amortization of defined benefit pension and other postretirement plan actuarial losses	$ (161)	$ 0