PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Property, Plant and Equipment [Abstract]
Depreciation	$ 74,500	$ 61,500
Payments for capital projects	77,168	87,941
Transfer of property, plant and equipment	87,200	56,100
Proceeds from property disposals	632	539
Gain (loss) on property disposals	521	$ 108
Idled assets, carrying amount	42,000
Idled assets, depreciable value	221,100
Idled assets, accumulated depreciation	$ 179,100