PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013
PROPERTY, PLANT AND EQUIPMENT [Abstract]
Acquisitions of property, plant and equipment	$ 47,760	$ 25,778
Transfer of property, plant and equipment	28,800
Depreciation	33,200	33,800
Proceeds from property disposals	1,511	1,660
Gain on property disposals	(600)	1,100
Assets held for sale	5,849		7,033
Idled asset accumulated depreciation	109,800
Idled asset property, plant and equipment gross	187,100
Idled assets property, plant and equipment, net	77,300
Loss on scrapped assets	$ (74)	$ (18)