Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill	$ 0	$ 66,487	$ 0
Goodwill [Roll Forward]
Balance at beginning of period	179,005	201,416
Impairment of goodwill	0	(66,487)	0
Exchange rate effects	1,385	(627)
Balance at end of period	180,390	179,005	201,416
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	220,903	212,347
Accumulated amortization	(142,416)	(125,124)
Net intangible assets subject to amortization	78,487	87,223
Amortization expense (excluding capitalized software)	13,196	11,684	9,916
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2026	12,474
2027	9,510
2028	8,537
2029	8,315
2030	7,154
Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		11,685
Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		777
Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		32,241
MOSFETs [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill		66,487
Goodwill [Roll Forward]
Balance at beginning of period	0	34,246
Impairment of goodwill		(66,487)
Exchange rate effects	0	0
Balance at end of period	0	0	34,246
MOSFETs [Member] \| Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
MOSFETs [Member] \| Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
MOSFETs [Member] \| Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		32,241
Optoelectronic Components [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill		0
Goodwill [Roll Forward]
Balance at beginning of period	96,849	96,849
Impairment of goodwill		0
Exchange rate effects	0	0
Balance at end of period	96,849	96,849	96,849
Optoelectronic Components [Member] \| Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Optoelectronic Components [Member] \| Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Optoelectronic Components [Member] \| Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Resistors [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill		0
Goodwill [Roll Forward]
Balance at beginning of period	55,564	44,506
Impairment of goodwill		0
Exchange rate effects	1,327	(627)
Balance at end of period	56,891	55,564	44,506
Resistors [Member] \| Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		11,685
Resistors [Member] \| Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Resistors [Member] \| Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Inductors [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill		0
Goodwill [Roll Forward]
Balance at beginning of period	25,815	25,815
Impairment of goodwill		0
Exchange rate effects	0	0
Balance at end of period	25,815	25,815	25,815
Inductors [Member] \| Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Inductors [Member] \| Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Inductors [Member] \| Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Capacitors [Member]
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Impairment of goodwill		0
Goodwill [Roll Forward]
Balance at beginning of period	777	0
Impairment of goodwill		0
Exchange rate effects	58	0
Balance at end of period	835	777	$ 0
Capacitors [Member] \| Ametherm [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Capacitors [Member] \| Birkelbach Kondensatortechnik GmbH [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		777
Capacitors [Member] \| Newport wafer fab [Member]
Goodwill [Roll Forward]
Goodwill acquired during period		0
Patents and Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	23,615	23,160
Accumulated amortization	(9,379)	(7,316)
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	70,753	62,158
Accumulated amortization	(60,812)	(55,476)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	103,665	103,813
Accumulated amortization	(52,582)	(45,053)
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets subject to amortization	22,870	23,216
Accumulated amortization	$ (19,643)	$ (17,279)

VISHAY INTERTECHNOLOGY INC 10-K