FAIR VALUE MEASUREMENTS (Fair Value Hierarchy of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Fair Value Measurement, Recurring Basis - USD ($) $ in Thousands	Apr. 04, 2020	Dec. 28, 2019
Estimate of Fair Value Measurement
Assets:
Forward contracts	$ 12,285	$ 3,348
Investment in publicly traded mutual funds	4,460	5,243
Total	16,745	8,591
Liabilities:
Contingent consideration	1,464	1,141
Forward contracts	273	1,824
Total	1,737	2,965
Level 1
Assets:
Forward contracts	0	0
Investment in publicly traded mutual funds	4,460	5,243
Total	4,460	5,243
Liabilities:
Contingent consideration	0	0
Forward contracts	0	0
Total	0	0
Level 2
Assets:
Forward contracts	12,285	3,348
Investment in publicly traded mutual funds	0	0
Total	12,285	3,348
Liabilities:
Contingent consideration	0	0
Forward contracts	273	1,824
Total	273	1,824
Level 3
Assets:
Forward contracts	0	0
Investment in publicly traded mutual funds	0	0
Total	0	0
Liabilities:
Contingent consideration	1,464	1,141
Forward contracts	0	0
Total	$ 1,464	$ 1,141