PROPERTY, PLANT AND EQUIPMENT (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Sep. 25, 2016	Dec. 27, 2015
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 3,271,589	$ 3,100,144
Accumulated depreciation	(1,821,237)	(1,747,615)
PP&E, net	1,450,352	1,352,529
Land [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	109,557	105,165
Buildings [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,164,486	1,131,379
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,766,102	1,657,573
Autos and trucks [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	50,076	53,408
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 181,368	$ 152,619

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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