Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jul. 04, 2020	Jul. 03, 2021	Jul. 04, 2020
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 819,120	$ 581,717	$ 1,583,752	$ 1,194,558
Costs of products sold	589,848	451,047	1,151,531	916,648
Gross profit	229,272	130,670	432,221	277,910
Selling, general, and administrative expenses	103,900	89,127	209,585	188,959
Restructuring and severance costs	0	743	0	743
Operating income	125,372	40,800	222,636	88,208
Other income (expense):
Interest expense	(4,443)	(8,430)	(8,819)	(16,982)
Loss on early extinguishment of debt	0	(1,146)	0	(4,066)
Other	(3,749)	(1,484)	(9,480)	(1,286)
Total other income (expense)	(8,192)	(11,060)	(18,299)	(22,334)
Income before taxes	117,180	29,740	204,337	65,874
Income tax expense	23,799	4,845	39,313	13,595
Net earnings	93,381	24,895	165,024	52,279
Less: net earnings attributable to noncontrolling interests	189	242	397	407
Net earnings attributable to Vishay stockholders	$ 93,192	$ 24,653	$ 164,627	$ 51,872
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.64	$ 0.17	$ 1.14	$ 0.36
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.64	$ 0.17	$ 1.13	$ 0.36
Weighted average shares outstanding - basic (in shares)	145,017	144,846	144,992	144,818
Weighted average shares outstanding - diluted (in shares)	145,445	145,170	145,453	145,232
Cash dividends per share (in dollars per share)	$ 0.095	$ 0.095	$ 0.19	$ 0.19