Quarterly report pursuant to Section 13 or 15(d)

Derivative Financial Instruments and Hedging Activities - Hedges Included in Consolidated Statements of Income (Details)

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Derivative Financial Instruments and Hedging Activities - Hedges Included in Consolidated Statements of Income (Details) - Foreign currency exchange contracts not designated as hedging instruments - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) on Derivatives Recognized in Income $ (1,266) $ (620) $ (2,372) $ (971)
Cost of goods sold | Foreign currency exchange        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) on Derivatives Recognized in Income (927) (510) (294) 225
Other income (expense), net | Foreign currency exchange        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) on Derivatives Recognized in Income $ (339) $ (110) $ (2,078) $ (1,196)