Investments in Affiliated Companies (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	$ 76,355		$ 76,355		$ 86,942
Equity in earnings (losses) of affiliated companies	$ 61	$ (1,070)	$ 308	$ (2,155)
Equity Method Investment, Ownership Percentage	8.40%		8.40%
Equity Method Investment Pro Rata Share of Debt Obligations of Joint Venture	$ 3,100		$ 3,100		1,700
Marubun Arrow [Member]
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	67,515		67,515		76,574
Equity in earnings (losses) of affiliated companies	$ 96	160	$ 324	1,613
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Other joint ventures [Member]
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	$ 8,840		$ 8,840		$ 10,368
Equity in earnings (losses) of affiliated companies	$ (35)	$ (1,230)	$ (16)	$ (3,768)
Equity Method Investment, Ownership Percentage	50.00%		50.00%

Equity Method Investment Pro Rata Share Of Debt Obligations Of Joint Venture.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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