Investments in Affiliated Companies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Pro Rata Share Of Debt Obligations Of Joint Venture	$ 7,700
Equity in earnings of affiliated companies	6,736	6,369	4,731
Investments in affiliated companies	60,579	59,455
Marubun/Arrow [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Equity in earnings of affiliated companies	5,338	5,185	3,745
Investments in affiliated companies	45,626	41,971
Altech Industries [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Equity in earnings of affiliated companies	1,398	1,184	1,004
Investments in affiliated companies	14,953	17,484
Other [Member]
Schedule of Equity Method Investments [Line Items]
Equity in earnings of affiliated companies	$ 0	$ 0	$ (18)

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