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Derivative Financial Instruments (Details) - Foreign currency forward contracts
$ in Millions
6 Months Ended
Jun. 29, 2019
USD ($)
contract
Non-designated Hedges  
Derivative Financial Instruments  
Number of foreign currency forward contracts held | contract 1
Derivative, Notional Amount $ 5.2
Cash flow hedges  
Derivative Financial Instruments  
Derivative, Notional Amount $ 8.7
Cash flow hedges | Low end of range  
Derivative Financial Instruments  
Maturity of contracts 1 month
Cash flow hedges | High end of range  
Derivative Financial Instruments  
Maturity of contracts 12 months