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Stockholders' Equity (Details)
3 Months Ended 12 Months Ended
Dec. 31, 2018
$ / shares
shares
Sep. 29, 2018
$ / shares
Jun. 30, 2018
$ / shares
Mar. 31, 2018
$ / shares
Dec. 31, 2017
$ / shares
Sep. 30, 2017
$ / shares
Jul. 01, 2017
$ / shares
Apr. 01, 2017
$ / shares
Dec. 31, 2018
shares
$ / shares
Dec. 31, 2017
$ / shares
Dec. 31, 2016
$ / shares
Class of Stock [Line Items]                      
Cash dividends per share | $ / shares                 $ 0.3225 $ 0.255 $ 0.250
Shares reserved (in shares) 42,828,185               42,828,185    
Class B Convertible Common Stock [Member]                      
Class of Stock [Line Items]                      
Voting rights per share                 10    
Conversion feature                 one-for-one    
Shares reserved (in shares) [1] 12,097,427               12,097,427    
Common Stock [Member]                      
Class of Stock [Line Items]                      
Voting rights per share                 1    
Restricted stock units outstanding [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) 904,000               904,000    
Available to grant 2007 Stock Incentive Program - [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) 2,894,000               2,894,000    
Phantom stock units outstanding [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) 170,000               170,000    
Convertible Senior Debentures, Due 2040 [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) 115,513               115,513    
Number of shares debentures are convertible into (in shares)                 102,679    
Convertible Senior Debentures, Due 2041 [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) [1] 2,128,497               2,128,497    
Number of shares debentures are convertible into (in shares)                 1,891,999    
Convertible Senior Debentures 2042 [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) [1] 227,268               227,268    
Number of shares debentures are convertible into (in shares)                 199,796    
Convertible Senior Notes, Due 2025 [Member]                      
Class of Stock [Line Items]                      
Shares reserved (in shares) 24,291,480               24,291,480    
Number of shares debentures are convertible into (in shares)                 19,052,160    
Dividend Paid [Member]                      
Class of Stock [Line Items]                      
Cash dividends per share | $ / shares $ 0.0850 $ 0.0850 $ 0.0850 $ 0.0675 $ 0.0675 $ 0.0625 $ 0.0625 $ 0.0625      
Record date Dec. 06, 2018 Sep. 14, 2018 Jun. 13, 2018 Mar. 14, 2018 Dec. 07, 2017 Sep. 15, 2017 Jun. 15, 2017 Mar. 14, 2017      
Payment date Dec. 20, 2018 Sep. 27, 2018 Jun. 28, 2018 Mar. 29, 2018 Dec. 21, 2017 Sep. 28, 2017 Jun. 29, 2017 Mar. 29, 2017      
[1] The convertible senior debentures due 2040, due 2041, and due 2042 are convertible into 20,134,043, 8,014,230, and 12,912,435 shares, respectively, of Vishay common stock. The Company has reserved the maximum amount of shares to be delivered upon a make-whole fundamental change as defined in the indentures governing the debentures.