SEGMENT INFORMATION (Summary Information by Operating Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2020	Mar. 30, 2019
Summary information by operating segment
Net sales	$ 390,718	$ 465,268
Operating Income (Loss)	(134,341)	(19,944)
Operating segments | Americas
Summary information by operating segment
Net sales	152,916	190,369
Operating Income (Loss)	(61,644)	10,918
Operating segments | Europe
Summary information by operating segment
Net sales	128,250	153,277
Operating Income (Loss)	(2,655)	14,280
Operating segments | Asia
Summary information by operating segment
Net sales	106,187	116,900
Operating Income (Loss)	11,239	21,041
Corporate
Summary information by operating segment
Net sales	3,365	4,722
Operating Income (Loss)	$ (81,281)	$ (66,183)