Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 813,663	$ 640,160	$ 2,397,415	$ 1,834,718
Costs of products sold	587,927	488,451	1,739,458	1,405,099
Gross profit	225,736	151,709	657,957	429,619
Selling, general, and administrative expenses	102,215	90,219	311,800	279,178
Restructuring and severance costs			0	743
Operating income	123,521	61,490	346,157	149,698
Other income (expense):
Interest expense	(4,427)	(7,414)	(13,246)	(24,396)
Loss on early extinguishment of debt	0	(3,454)	0	(7,520)
Other	(2,679)	(4,898)	(12,159)	(6,184)
Total other income (expense)	(7,106)	(15,766)	(25,405)	(38,100)
Income before taxes	116,415	45,724	320,752	111,598
Income tax expense	19,333	12,063	58,646	25,658
Net earnings	97,082	33,661	262,106	85,940
Less: net earnings attributable to noncontrolling interests	262	177	659	584
Net earnings attributable to Vishay stockholders	$ 96,820	$ 33,484	$ 261,447	$ 85,356
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.67	$ 0.23	$ 1.80	$ 0.59
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.67	$ 0.23	$ 1.80	$ 0.59
Weighted average shares outstanding - basic (in shares)	145,017	144,854	145,000	144,831
Weighted average shares outstanding - diluted (in shares)	145,458	145,197	145,455	145,221
Cash dividends per share (in dollars per share)	$ 0.095	$ 0.095	$ 0.285	$ 0.285