Investments in Affiliated Companies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Investments in affiliated companies	$ 65,603	$ 60,579
Equity in earnings of affiliated companies	8,112	6,736	6,369
Equity Method Investment Pro Rata Share Of Debt Obligations Of Joint Venture	2,900
Marubun/Arrow [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Investments in affiliated companies	50,864	45,626
Equity in earnings of affiliated companies	6,825	5,338	5,185
Altech Industries [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Investments in affiliated companies	14,739	14,953
Equity in earnings of affiliated companies	$ 1,287	$ 1,398	$ 1,184

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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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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+ Details