Fair Value Measurements and Disclosures - Notional Amounts and Fair Values of Outstanding Derivative Instruments (Details) - Forward Foreign Currency Contracts [Member] - Not Designated as Hedging Instrument [Member] - USD ($)	Sep. 28, 2019	Dec. 29, 2018
Purchase [Member]
Derivatives Fair Value [Line Items]
Notional Amount	$ 30,900,000	$ 25,900,000
Fair Value Asset	0	0
Fair Value Liability	100,000	0
Sell [Member]
Derivatives Fair Value [Line Items]
Notional Amount	0	21,800,000
Fair Value Asset	0	0
Fair Value Liability	$ 0	$ 200,000