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Derivative Instruments - Derivative Instruments, Gain (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 27, 2020
Sep. 29, 2019
Sep. 27, 2020
Sep. 29, 2019
Not Designated as Hedging Instrument | Foreign Currency Gain (Loss)        
Derivative Instruments, Gain (Loss) [Line Items]        
Gains (losses) recognized in current operations $ (1,521) $ 469 $ (9,701) $ 535