Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Numerator [Abstract]
Net earnings (loss) attributable to Vishay stockholders	$ (7,876)	$ (19,299)	$ (9,964)	$ 35,158
Denominator [Abstract]
Weighted average shares (in shares)	135,586	136,667	135,606	137,155
Outstanding phantom stock units (in shares)	134	126	133	126
Adjusted weighted average shares - basic (in shares)	135,720	136,793	135,739	137,281
Effect of dilutive securities [Abstract]
Restricted stock units (in shares)	0	0	0	758
Dilutive potential common shares (in shares)	0	0	0	758
Denominator for diluted earnings (loss) per share [Abstract]
Adjusted weighted average shares - diluted (in shares)	135,720	136,793	135,739	138,039
Basic earnings (loss) per share attributable to Vishay stockholders (in dollars per share)	$ (0.06)	$ (0.14)	$ (0.07)	$ 0.26
Diluted earnings (loss) per share attributable to Vishay stockholders (in dollars per share)	$ (0.06)	$ (0.14)	$ (0.07)	$ 0.25
Restricted stock units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	3,542	2,646	3,246	243