Investments in Affiliated Companies (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	$ 88,347	$ 88,401
Equity in earnings of affiliated companies	$ 3,424	7,573	$ 7,037
Marubun/Arrow [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Investments in affiliated companies	$ 70,167	65,237
Equity in earnings of affiliated companies	6,842	7,629	6,212
Other joint venture [Member]
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	18,180	23,164
Equity in earnings of affiliated companies	$ (3,418)	$ (56)	$ 825
Minimum [Member] \| Other joint venture [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	43.00%
Maximum [Member] \| Other joint venture [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%

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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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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