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Investments in Affiliated Companies (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 29, 2012 | Oct. 01, 2011 | Sep. 29, 2012 | Oct. 01, 2011 | Dec. 31, 2011
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments in affiliated companies | $ 64,232 |  | $ 64,232 |  | $ 60,579
Equity in earnings of affiliated companies | 2,154 | 2,179 | 5,766 | 4,800 |
Equity Method Investment Pro Rata Share Of Debt Obligations Of Joint Venture | 5,850 |  | 5,850 |  |
Marubun/Arrow [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 50.00% |  | 50.00% |  |
Investments in affiliated companies | 49,224 |  | 49,224 |  | 45,626
Equity in earnings of affiliated companies | 1,840 | 1,686 | 4,684 | 3,678 |
Altech Industries [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 50.00% |  | 50.00% |  |
Investments in affiliated companies | 15,008 |  | 15,008 |  | 14,953
Equity in earnings of affiliated companies | $ 314 | $ 493 | $ 1,082 | $ 1,122 |

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