PROPERTY, PLANT AND EQUIPMENT (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Jun. 25, 2017	Dec. 25, 2016
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 3,626,007	$ 3,354,504
Accumulated depreciation	(1,904,059)	(1,848,564)
PP&E, net	1,721,948	1,505,940
Land
Property, Plant and Equipment [Line Items]
PP&E, gross	164,157	112,132
Buildings
Property, Plant and Equipment [Line Items]
PP&E, gross	1,256,981	1,169,984
Machinery and equipment
Property, Plant and Equipment [Line Items]
PP&E, gross	1,888,854	1,789,550
Autos and trucks
Property, Plant and Equipment [Line Items]
PP&E, gross	47,840	50,964
Construction-in-progress
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 268,175	$ 231,874

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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-SubTopic 10
-Section 50
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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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-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02(13))
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