Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 71,643	$ 27,384
Other comprehensive income (loss), net of tax
Pension and other post-retirement actuarial items	1,864	1,601
Foreign currency translation adjustment	(26,949)	(23,129)
Other comprehensive income (loss)	(25,085)	(21,528)
Comprehensive income	46,558	5,856
Less: comprehensive income attributable to noncontrolling interests	208	165
Comprehensive income attributable to Vishay stockholders	$ 46,350	$ 5,691