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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2011
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands):

   
Years ended December 31,
 
   
2011
  
2010
  
2009
 
           
Numerator:
         
Numerator for basic earnings (loss) per share:
         
   Net earnings (loss)
 $238,821  $359,106  $(57,188)
              
Adjustment to the numerator for continuing operations and net earnings (loss):
            
  
            
 Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax
  189   257   - 
              
Numerator for diluted earnings (loss) per share:
            
   Net earnings (loss)
 $239,010  $359,363  $(57,188)
              
Denominator:
            
Denominator for basic earnings (loss) per share:
            
     Weighted average shares
  160,094   183,618   186,605 
              
Effect of dilutive securities:
            
     Convertible and exchangeable debt instruments
  7,820   6,313   - 
     Employee stock options
  106   10   - 
     Other
  494   286   - 
     Dilutive potential common shares
  8,420   6,609   - 
              
Denominator for diluted earnings (loss) per share:
            
     Adjusted weighted average shares
  168,514   190,227   186,605 
              
              
Basic earnings (loss) per share attributable to Vishay stockholders
 $1.49  $1.96  $(0.31)
              
Diluted earnings (loss) per share attributable to Vishay stockholders
 $1.42  $1.89  $(0.31)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Diluted earnings per share for the years presented do not reflect the following weighted average potential common shares, as the effect would be antidilutive (in thousands):

   
Years ended December 31,
 
   
2011
  
2010
  
2009
 
Convertible and exchangeable notes:
         
  Convertible Senior Debentures, due 2040
  9,905   -   - 
  Convertible Senior Debentures, due 2041
  5,026   -   - 
  Convertible Subordinated Notes, due 2023
  -   51   87 
  Exchangeable Unsecured Notes, due 2102
  -   -   6,176 
Weighted average employee stock options
  182   2,243   3,615 
Weighted average warrants
  8,824   8,824   8,824 
Weighted average other
  123   35   294