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Investments in Affiliated Companies (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]          
Investments in affiliated companies $ 62,182   $ 62,182   $ 60,579
Equity in earnings of affiliated companies 1,428 1,408 3,612 2,621  
Equity Method Investment Pro Rata Share Of Debt Obligations Of Joint Venture 6,650   6,650    
Marubun/Arrow [Member]
         
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Ownership Percentage 50.00%   50.00%    
Investments in affiliated companies 47,222   47,222   45,626
Equity in earnings of affiliated companies 1,228 1,175 2,844 1,992  
Altech Industries [Member]
         
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Ownership Percentage 50.00%   50.00%    
Investments in affiliated companies 14,960   14,960   14,953
Equity in earnings of affiliated companies $ 200 $ 233 $ 768 $ 629