Derivative Financial Instruments (Schedule of Fair Values of the Company's Derivative Instruments and the Line Items on the Unaudited Condensed Consolidated Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Gross Amounts of recognized assets	$ 159	$ 152
Gross Amounts of recognized liabilities	1,488	525
Prepaid expenses and other current assets | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Gross Amounts of recognized assets	158	109
Prepaid expenses and other current assets | Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Gross Amounts of recognized assets	1	43
Other accrued liabilities | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Gross Amounts of recognized liabilities	1,397	493
Other accrued liabilities | Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Gross Amounts of recognized liabilities	$ 91	$ 32