Document and Entity Information (USD $)	3 Months Ended
	Apr. 04, 2015	Jun. 28, 2014	May 01, 2015
Entity Information [Line Items]
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 04, 2015
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	0000103730
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 2,068,000,000
Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			135,440,811
Class B Convertible Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			12,129,227