Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 764,632	$ 612,841
Costs of products sold	561,683	465,601
Gross profit	202,949	147,240
Selling, general, and administrative expenses	105,685	99,832
Operating income	97,264	47,408
Other income (expense):
Interest expense	(4,376)	(8,552)
Loss on early extinguishment of debt	0	(2,920)
Other	(5,731)	198
Total other income (expense)	(10,107)	(11,274)
Income before taxes	87,157	36,134
Income tax expense	15,514	8,750
Net earnings	71,643	27,384
Less: net earnings attributable to noncontrolling interests	208	165
Net earnings attributable to Vishay stockholders	$ 71,435	$ 27,219
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.49	$ 0.19
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.49	$ 0.19
Weighted average shares outstanding - basic (in shares)	144,968	144,792
Weighted average shares outstanding - diluted (in shares)	145,463	145,295
Cash dividends per share (in dollars per share)	$ 0.095	$ 0.095