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FAIR VALUE MEASUREMENTS Fair Value measurements (Hierarchy) (Details) - USD ($)
Jul. 01, 2017
Dec. 31, 2016
Jul. 02, 2016
Fair Value, Inputs, Level 1 [Member]      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Investments $ 0 $ 0 $ 0
Contingent consideration 0 0 0
Foreign exchange forward contracts 0 0 0
Fair Value, Inputs, Level 2 [Member]      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Investments 0 0 0
Contingent consideration 0 0 0
Foreign exchange forward contracts 0 0 1,300
Fair Value, Inputs, Level 3 [Member]      
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Investments 0 0 0
Contingent consideration 3,600 0 0
Foreign exchange forward contracts $ 0 $ 0 $ 0