Derivative Financial Instruments (Details) - Foreign currency forward contracts $ in Millions	3 Months Ended
	Mar. 30, 2019 USD ($)
Non-designated Hedges
Derivative Financial Instruments
Notional value	$ 6.6
Cash flow hedges
Derivative Financial Instruments
Notional value	$ 8.9
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