Vishay Intertechnology (VSH) 10-Q 3 Nov 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Oct. 02, 2021	Oct. 29, 2021
Entity Listings [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Oct. 2, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity Registrant Name	Vishay Intertechnology, Inc.
Entity Incorporation, State or Country Code	DE
Entity File Number	001-07416
Entity Tax Identification Number	38-1686453
Entity Address, Address Line One	63 Lancaster Avenue
Entity Address, City or Town	Malvern
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19355
City Area Code	610
Local Phone Number	644-1300
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Small Business	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000103730
Title of 12(b) Security	Common stock, par value $0.10 per share
Trading Symbol	VSH
Security Exchange Name	NYSE
Common stock, par value $0.10 per share [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		132,710,732
Class B Convertible Common Stock [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		12,097,148

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Oct. 02, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 831,760	$ 619,874
Short-term investments	84,177	158,476
Accounts receivable, net	378,523	338,632
Inventories:
Finished goods	152,769	120,792
Work in process	223,355	201,259
Raw materials	156,544	126,200
Total inventories	532,668	448,251
Prepaid expenses and other current assets	146,870	132,103
Total current assets	1,973,998	1,697,336
Property and equipment, at cost:
Land	75,063	76,231
Buildings and improvements	632,219	641,041
Machinery and equipment	2,746,511	2,732,771
Construction in progress	112,157	86,520
Allowance for depreciation	(2,640,993)	(2,593,398)
Property and equipment, net	924,957	943,165
Right of use assets	110,083	102,440
Goodwill	157,683	158,183
Other intangible assets, net	59,583	66,795
Other assets	197,974	186,554
Total assets	3,424,278	3,154,473
Current liabilities:
Trade accounts payable	221,666	196,203
Payroll and related expenses	155,792	141,034
Lease liabilities	21,583	22,074
Other accrued expenses	206,045	182,642
Income taxes	40,648	20,470
Total current liabilities	645,734	562,423
Long-term debt less current portion	454,848	394,886
U.S. transition tax payable	110,681	125,438
Deferred income taxes	1,843	1,852
Long-term lease liabilities	94,064	86,220
Other liabilities	105,880	104,356
Accrued pension and other postretirement costs	283,049	300,113
Total liabilities	1,696,099	1,575,288
Redeemable convertible debentures	0	170
Vishay stockholders' equity
Common stock	13,271	13,256
Class B convertible common stock	1,210	1,210
Capital in excess of par value	1,346,980	1,409,200
Retained earnings	379,672	138,990
Accumulated other comprehensive income (loss)	(15,613)	13,559
Total Vishay stockholders' equity	1,725,520	1,576,215
Noncontrolling interests	2,659	2,800
Total equity	1,728,179	1,579,015
Total liabilities, temporary equity, and equity	$ 3,424,278	$ 3,154,473

Consolidated Condensed Statemen

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

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 97,082	$ 33,661	$ 262,106	$ 85,940
Other comprehensive income (loss), net of tax
Pension and other post-retirement actuarial items	1,850	1,886	5,734	5,247
Foreign currency translation adjustment	(17,242)	21,100	(34,906)	18,059
Other comprehensive income (loss)	(15,392)	22,986	(29,172)	23,306
Comprehensive income	81,690	56,647	232,934	109,246
Less: comprehensive income attributable to noncontrolling interests	262	177	659	584
Comprehensive income attributable to Vishay stockholders	$ 81,428	$ 56,470	$ 232,275	$ 108,662

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020
Operating activities
Net earnings	$ 262,106	$ 85,940
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	125,095	123,776
(Gain) loss on disposal of property and equipment	(254)	257
Accretion of interest on convertible debt instruments	0	10,232
Inventory write-offs for obsolescence	14,960	17,891
Deferred income taxes	(4,208)	(1,142)
Loss on extinguishment of debt	0	7,520
Other	8,376	3,188
Change in U.S. transition tax liability	(14,757)	(14,757)
Change in repatriation tax liability	0	(16,258)
Net change in operating assets and liabilities	(80,866)	(27,408)
Net cash provided by operating activities	310,452	189,239
Investing activities
Capital expenditures	(118,156)	(70,801)
Proceeds from sale of property and equipment	1,257	293
Purchase of businesses, net of cash received	0	(25,852)
Purchase of short-term investments	(55,491)	(157,177)
Maturity of short-term investments	126,171	241,016
Other investing activities	347	(529)
Net cash provided by (used in) investing activities	(45,872)	(13,050)
Financing activities
Repurchase of convertible debt instruments	(300)	(148,177)
Net changes in short-term borrowings	0	(110)
Distributions to noncontrolling interests	(800)	(600)
Cash withholding taxes paid when shares withheld for vested equity awards	(1,963)	(2,016)
Net cash provided by (used in) financing activities	(44,334)	(192,130)
Effect of exchange rate changes on cash and cash equivalents	(8,360)	4,230
Net increase (decrease) in cash and cash equivalents	211,886	(11,711)
Cash and cash equivalents at beginning of period	619,874	694,133
Cash and cash equivalents at end of period	831,760	682,422
Common Stock [Member]
Financing activities
Dividends paid to common stockholders	(37,823)	(37,779)
Class B Convertible Common Stock [Member]
Financing activities
Dividends paid to common stockholders	$ (3,448)	$ (3,448)

Consolidated Condensed Statem_3

Consolidated Condensed Statements of Equity - USD ($) $ in Thousands	Capital In Excess of Par Value [Member]	Capital In Excess of Par Value [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings (Accumulated Deficit) [Member]	Retained Earnings (Accumulated Deficit) [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Total Vishay Stockholders' Equity [Member]	Total Vishay Stockholders' Equity [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Noncontrolling Interests [Member]	Noncontrolling Interests [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Common Stock [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Class B Convertible Common Stock [Member]	Class B Convertible Common Stock [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at Period Start at Dec. 31, 2019	$ 1,425,170		$ 72,180		$ (26,646)		$ 1,485,149		$ 2,540		$ 1,487,689		$ 13,235		$ 1,210
Net earnings	0		27,219		0		27,219		165		27,384		0		0
Other comprehensive income	0		0		(21,528)		(21,528)		0		(21,528)		0		0
Temporary equity reclassification	174		0		0		174		0		174		0		0
Issuance of stock and related tax withholdings for vested restricted stock units	(2,011)		0		0		(1,991)		0		(1,991)		20		0
Dividends declared			(13,759)		0		(13,741)		0		(13,741)		0		0
Dividends declared (APIC)	18
Stock compensation expense	2,998		0		0		2,998		0		2,998		0		0
Repurchase of convertible debt instruments	(10,089)		0		0		(10,089)		0		(10,089)		0		0
Balance at Period End at Apr. 04, 2020	1,416,260		84,570		(48,174)		1,467,121		2,705		1,469,826		13,255		1,210
Balance at Period Start at Dec. 31, 2019	1,425,170		72,180		(26,646)		1,485,149		2,540		1,487,689		13,235		1,210
Net earnings											85,940
Other comprehensive income											23,306
Balance at Period End at Oct. 03, 2020	1,410,335		115,184		(3,340)		1,536,645		2,524		1,539,169		13,256		1,210
Cumulative effect of accounting change for adoption of ASU		$ 0		$ (1,070)		$ 0		$ (1,070)		$ 0		$ (1,070)		$ 0		$ 0
Balance at Period Start at Apr. 04, 2020	1,416,260		84,570		(48,174)		1,467,121		2,705		1,469,826		13,255		1,210
Net earnings	0		24,653		0		24,653		242		24,895		0		0
Other comprehensive income	0		0		21,848		21,848		0		21,848		0		0
Distributions to noncontrolling interests	0		0		0		0		(600)		(600)		0
Issuance of stock and related tax withholdings for vested restricted stock units	(26)		0		0		(25)		0		(25)		1		0
Dividends declared			(13,761)		0		(13,743)		0		(13,743)		0		0
Dividends declared (APIC)	18
Stock compensation expense	875		0		0		875		0		875		0		0
Repurchase of convertible debt instruments	(4,352)		0		0		(4,352)		0		(4,352)		0		0
Balance at Period End at Jul. 04, 2020	1,412,775		95,462		(26,326)		1,496,377		2,347		1,498,724		13,256		1,210
Net earnings	0		33,484		0		33,484		177		33,661		0		0
Other comprehensive income	0		0		22,986		22,986		0		22,986		0		0
Dividends declared			(13,762)		0		(13,743)		0		(13,743)		0		0
Dividends declared (APIC)	19
Stock compensation expense	732		0		0		732		0		732		0		0
Repurchase of convertible debt instruments	(3,191)		0		0		(3,191)		0		(3,191)		0		0
Balance at Period End at Oct. 03, 2020	1,410,335		115,184		(3,340)		1,536,645		2,524		1,539,169		13,256		1,210
Cumulative effect of accounting change for adoption of ASU											138,990	20,566
Balance at Period Start at Dec. 31, 2020	1,409,200		138,990		13,559		1,576,215		2,800		1,579,015		13,256		1,210
Net earnings	0		71,435		0		71,435		208		71,643		0		0
Other comprehensive income	0		0		(25,085)		(25,085)		0		(25,085)		0		0
Issuance of stock and related tax withholdings for vested restricted stock units	(1,978)		0		0		(1,963)		0		(1,963)		15		0
Dividends declared			(13,777)		0		(13,757)		0		(13,757)		0		0
Dividends declared (APIC)	20
Stock compensation expense	4,120		0		0		4,120		0		4,120		0		0
Balance at Period End at Apr. 03, 2021	1,345,284		217,214		(11,526)		1,565,453		3,008		1,568,461		13,271		1,210
Balance at Period Start at Dec. 31, 2020	1,409,200		138,990		13,559		1,576,215		2,800		1,579,015		13,256		1,210
Net earnings											262,106
Other comprehensive income											(29,172)
Balance at Period End at Oct. 02, 2021	1,346,980		379,672		(15,613)		1,725,520		2,659		1,728,179		13,271		1,210
Cumulative effect of accounting change for adoption of ASU		$ (66,078)		$ 20,566		$ 0		$ (45,512)		$ 0		$ (45,512)		$ 0		$ 0
Balance at Period Start at Apr. 03, 2021	1,345,284		217,214		(11,526)		1,565,453		3,008		1,568,461		13,271		1,210
Net earnings	0		93,192		0		93,192		189		93,381		0		0
Other comprehensive income	0		0		11,305		11,305		0		11,305		0		0
Distributions to noncontrolling interests	0		0		0		0		(800)		(800)		0		0
Dividends declared			(13,777)		0		(13,757)		0		(13,757)		0		0
Dividends declared (APIC)	20
Stock compensation expense	828		0		0		828		0		828		0		0
Balance at Period End at Jul. 03, 2021	1,346,132		296,629		(221)		1,657,021		2,397		1,659,418		13,271		1,210
Net earnings	0		96,820		0		96,820		262		97,082		0		0
Other comprehensive income	0		0		(15,392)		(15,392)		0		(15,392)		0		0
Dividends declared			(13,777)		0		(13,757)		0		(13,757)		0		0
Dividends declared (APIC)	20
Stock compensation expense	828		0		0		828		0		828		0		0
Balance at Period End at Oct. 02, 2021	$ 1,346,980		$ 379,672		$ (15,613)		$ 1,725,520		$ 2,659		1,728,179		$ 13,271		$ 1,210
Cumulative effect of accounting change for adoption of ASU											$ 379,672

Consolidated Condensed Statem_4

Consolidated Condensed Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Apr. 03, 2021	Jul. 04, 2020	Apr. 04, 2020
Consolidated Condensed Statements of Equity (Parenthetical) [Abstract]
Restricted stock issuances (in shares)	149,722	13,141	199,251
Dividends declared (in dollars per share)	$ 0.095	$ 0.095	$ 0.095

Basis of Presentation

Basis of Presentation	9 Months Ended
	Oct. 02, 2021
Basis of Presentation [Abstract]
Basis of Presentation	Note 1 – Basis of Presentation The accompanying unaudited consolidated condensed financial statements of Vishay Intertechnology, Inc. (“Vishay” or the “Company”) have been prepared in accordance with the instructions to Form 10-Q and therefore do not include all information and footnotes necessary for presentation of financial position, results of operations, and cash flows required by accounting principles generally accepted in the United States (“GAAP”) for complete financial statements. The information furnished reflects all normal recurring adjustments which are, in the opinion of management, necessary for a fair summary of the financial position, results of operations, and cash flows for the interim periods presented. The financial statements should be read in conjunction with the consolidated financial statements filed with the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The results of operations for the fiscal quarter and nine fiscal months ended October 2, 2021 are not necessarily indicative of the results to be expected for the full year. The Company reports interim financial information for 13-week periods beginning on a Sunday and ending on a Saturday, except for the first fiscal quarter, which always begins on January 1, and the fourth fiscal quarter, which always ends on December 31. The four fiscal quarters in 2021 end on April 3, 2021, July 3, 2021, October 2, 2021, and December 31, 2021, respectively. The four fiscal quarters in 2020 ended on April 4, 2020, July 4, 2020, October 3, 2020, and December 31, 2020, respectively. Recently Adopted Accounting Guidance In August 2020, the Financial Accounting Standards Board ("FASB") issued ASU No. 2020-06, Debt – Debt With Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Leases

Leases	9 Months Ended
	Oct. 02, 2021
Leases [Abstract]
Leases	Note 2 – Leases The net right of use assets and lease liabilities recognized on the consolidated condensed balance sheets for the Company's operating leases were as follows: October 2, 2021 December 31, 2020 Right of use assets Operating Leases Buildings and improvements $ 105,072 $ 97,429 Machinery and equipment 5,011 5,011 Total $ 110,083 $ 102,440 Current lease liabilities Operating Leases Buildings and improvements $ 18,944 $ 19,370 Machinery and equipment 2,639 2,704 Total $ 21,583 $ 22,074 Long-term lease liabilities Operating Leases Buildings and improvements $ 91,744 $ 83,926 Machinery and equipment 2,320 2,294 Total $ 94,064 $ 86,220 Total lease liabilities $ 115,647 $ 108,294 Lease expense is classified in the statements of operations based on asset use. Total lease cost recognized on the consolidated condensed statements of operations is as follows: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Lease expense Operating lease expense $ 6,170 $ 5,898 $ 18,570 $ 17,310 Short-term lease expense 691 260 1,444 679 Variable lease expense 97 11 290 40 Total lease expense $ 6,958 $ 6,169 $ 20,304 $ 18,029 The Company paid $18,000 and $18,703 for its operating leases in the nine fiscal months ended October 2, 2021 and October 3, 2020, respectively, which are included in operating cash flows on the consolidated condensed statements of cash flows. The weighted-average remaining lease term for the Company's operating leases is 9.3 years and the weighted-average discount rate is 5.6% as of October 2, 2021. The undiscounted future lease payments for the Company's operating lease liabilities are as follows: October 2, 2021 2021 (excluding the nine fiscal months ended October 2, 2021) $ 5,692 2022 21,305 2023 19,061 2024 16,745 2025 15,255 Thereafter 71,276 The undiscounted future lease payments presented in the table above include payments through the term of the lease, which may include periods beyond the noncancellable term. The difference between the total payments above and the lease liability balance is due to the discount rate used to calculate lease liabilities.

Restructuring and Related Activ

Restructuring and Related Activities	9 Months Ended
	Oct. 02, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities	Note 3 – Restructuring and Related Activities I The following table summarizes the activity to date related to this program: Expense recorded in 2019 $ 24,139 Cash paid (1,330 ) Foreign currency translation 35 Balance at December 31, 2019 $ 22,844 Expense recorded in 2020 743 Cash paid (10,813 ) Foreign currency translation 683 Balance at December 31, 2020 $ 13,457 Cash paid (10,624 ) Foreign currency translation (86 ) Balance at October 2, 2021 $ 2,747 The payment terms vary by country, but generally are paid in a lump sum at cessation of employment. Some payments are made over an extended period. The current portion of the liability is $1,738 and is included in other accrued expenses on the consolidated condensed balance sheet. The non-current portion of the liability is $1,009 and is included in other liabilities on the consolidated condensed balance sheet.

Income Taxes

Income Taxes	9 Months Ended
	Oct. 02, 2021
Income Taxes [Abstract]
Income Taxes	Note 4 – Income Taxes The provision for income taxes consists of provisions for federal, state, and foreign income taxes. The effective tax rates for the periods ended October 2, 2021 and October 3, 2020 reflect the Company’s expected tax rate on reported income before income tax and tax adjustments. The Company operates in a global environment with significant operations in various jurisdictions outside the United States. Accordingly, the consolidated income tax rate is a composite rate reflecting the Company’s earnings and the applicable tax rates in the various jurisdictions where the Company operates. The Company adjusted its deferred tax balances by $12,127 upon the adoption of ASU No. 2020-06 on January 1, 2021, which was included in the cumulative-effect adjustment recorded to retained earnings. See Note 1. The Company recognized tax benefits of $5,714 due to the release of a valuation allowance during the fiscal quarter ended October 2, 2021. The Company also recognized tax benefits of $8,276 due to changes in tax regulations during the nine fiscal months ended October 2, 2021. During the nine fiscal months ended October 2, 2021, the liabilities for unrecognized tax benefits decreased by $1,328 on a net basis, primarily due to a payment, statute expiration, and currency translation adjustments, partially offset by accruals for current year tax positions and interest.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Oct. 02, 2021
Long-Term Debt [Abstract]
Long-Term Debt	Note 5 – Long-Term Debt Long-term debt consists of the following: October 2, 2021 December 31, 2020 Credit facility $ - $ - Convertible senior notes, due 2025 465,344 406,268 Convertible senior debentures, due 2040 - 130 Deferred financing costs (10,496 ) (11,512 ) 454,848 394,886 Less current portion - - $ 454,848 $ 394,886 The following table summarizes some key facts and terms regarding the outstanding convertible senior notes due 2025 as of October 2, 2021: Convertible Senior Notes Due 2025 Issuance date June 12, 2018 Maturity date June 15, 2025 Principal amount as of October 2, 2021 $ 465,344 Cash coupon rate (per annum) 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 5.50 % Conversion rate effective September 9, 2021 (per $1 principal amount) 31.9258 Effective conversion price effective September 9, 2021 (per share) $ 31.32 130% of the conversion price (per share) $ 40.72 Call date n/a Effective January 1, 2021, Vishay adopted ASU No. 2020-06. Upon adoption, Vishay derecognized the bifurcated equity component, debt discount, and deferred taxes and remeasured the deferred financing costs associated with its convertible debt instruments. See Note 1. The carrying value of Vishay's convertible debt instruments is now equal to the outstanding principal amount and interest expense is now equal to the cash interest paid. The remeasured deferred financing costs continue to be recognized as non-cash interest expense. Prior to December 15, 2024, the holders of the convertible senior notes due 2025 may convert their notes only under the following circumstances: (1) during any fiscal quarter after the fiscal quarter ending September 29, 2018, if the sale price of Vishay common stock reaches 130% of the conversion price for a specified period; (2) the trading price of the notes falls below 98% of the product of the sale price of Vishay's common stock and the conversion rate for a specified period; or (3) upon the occurrence of specified corporate transactions. The convertible senior notes due 2025 are not currently convertible. Upon conversion of the convertible senior notes due 2025, Vishay will satisfy its conversion obligations by paying $1 cash per $1 principal amount of converted notes and settle any additional amounts due in common stock. The quarterly cash dividend program of the Company results in adjustments to the conversion rate and effective conversion price for the convertible senior notes due 2025 effective as of the ex-dividend date of each cash dividend. The conversion rate and effective conversion price for the convertible senior notes due 2025 is adjusted for quarterly cash dividends to the extent such dividends exceed $0.085 per share of common stock. As of December 31, 2020, there were $300 of convertible senior debentures due 2040 outstanding. On January 5, 2021, Vishay gave notice to the holders of its convertible senior debentures due 2040 that Vishay would redeem the debentures on February 4, 2021. The redemption price was paid in cash and was equal to 100% of the principal amount plus accrued but unpaid interest to, but excluding February 4, 2021. The carrying value of the convertible senior notes due 2025 was $465,344 as of October 2, 2021. The carrying value of the liability and equity components of the convertible debt instruments prior to the adoption of ASU No. 2020-06 are reflected in the Company’s consolidated condensed balance sheet as follows: Principal amount of the debt instruments Unamortized discount Carrying value of liability component Equity component (including temporary equity) -net carrying value December 31, 2020 Convertible senior notes due 2025 $ 465,344 (59,076 ) $ 406,268 $ 66,127 Convertible senior debentures due 2040 $ 300 (170 ) $ 130 $ 121 Total $ 465,644 $ (59,246 ) $ 406,398 $ 66,248 Interest is payable on the convertible debt instruments semi-annually at the cash coupon rate. Prior to the adoption of ASU 2020-06 on January 1, 2021, the debt discount associated with the convertible debt instruments was amortized as additional non-cash interest expense using an effective annual interest rate equal to the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the fiscal quarters ended: Contractual coupon interest Non-cash amortization of debt discount Other non-cash interest expense Total interest expense related to the debt instruments October 2, 2021 Convertible senior notes due 2025 $ 2,618 - 433 $ 3,051 October 3, 2020 Convertible senior notes due 2025 $ 2,839 3,099 382 $ 6,320 Convertible senior debentures $ 16 8 - $ 24 Total $ 2,855 $ 3,107 $ 382 $ 6,344 Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the nine fiscal months ended: Contractual coupon interest Non-cash amortization of debt discount Other non-cash interest expense Total interest expense related to the debt instruments October 2, 2021 Convertible senior notes due 2025 $ 7,854 - 1,299 $ 9,153 October 3, 2020 Convertible senior notes due 2025 $ 9,480 10,195 1,271 $ 20,946 Convertible senior debentures $ 76 37 - $ 113 Total $ 9,556 $ 10,232 $ 1,271 $ 21,059 Other non-cash interest expense includes amortization of deferred financing costs. Interest expense related to the convertible senior debentures was immaterial in 2021.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Oct. 02, 2021
Revenue Recognition [Abstract]
Revenue Recognition	Note 6 – Revenue Recognition Sales returns and allowances accrual activity is shown below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Beginning balance $ 41,262 $ 39,432 $ 39,629 $ 40,508 Sales allowances 22,850 22,190 68,689 64,046 Credits issued (28,948 ) (27,610 ) (72,744 ) (70,583 ) Foreign currency (314 ) 534 (724 ) 575 Ending balance $ 34,850 $ 34,546 $ 34,850 $ 34,546

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Oct. 02, 2021
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 7 – Accumulated Other Comprehensive Income (Loss) The cumulative balance of each component of other comprehensive income (loss) and the income tax effects allocated to each component are as follows: Pension and other post- retirement actuarial items Currency translation adjustment Total Balance at January 1, 2021 $ (77,075 ) $ 90,634 $ 13,559 Other comprehensive income before reclassifications - (34,906 ) $ (34,906 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (34,906 ) $ (34,906 ) Amounts reclassified out of AOCI 7,951 - $ 7,951 Tax effect (2,217 ) - $ (2,217 ) Amounts reclassified out of AOCI, net of tax 5,734 - $ 5,734 Net other comprehensive income $ 5,734 $ (34,906 ) $ (29,172 ) Balance at October 2, 2021 $ (71,341 ) $ 55,728 $ (15,613 ) Reclassifications of pension and other post-retirement actuarial items out of AOCI are included in the computation of net periodic benefit cost. See Note 8 for further information.

Pensions and Other Postretireme

Pensions and Other Postretirement Benefits	9 Months Ended
	Oct. 02, 2021
Pensions and Other Postretirement Benefits [Abstract]
Pensions and Other Postretirement Benefits	Note 8 – Pensions and Other Postretirement Benefits The Company maintains various retirement benefit plans. The service cost component of net periodic pension cost is classified in costs of products sold or selling, general, and administrative expenses on the consolidated condensed statements of operations based on the respective employee's function. The other components of net periodic pension cost are classified as other expense on the consolidated condensed statements of operations. Defined Benefit Pension Plans The following table shows the components of the net periodic pension cost for the third fiscal quarters of 2021 and 2020 for the Company’s defined benefit pension plans: Fiscal quarter ended October 2, 2021 Fiscal quarter ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 1,167 $ - $ 1,115 Interest cost 254 738 342 961 Expected return on plan assets - (414 ) - (504 ) Amortization of prior service cost 36 49 36 31 Amortization of losses 447 1,851 298 1,671 Curtailment and settlement losses - 203 - 317 Net periodic benefit cost $ 737 $ 3,594 $ 676 $ 3,591 The following table shows the components of the net periodic pension cost for the nine fiscal months ended October 2, 2021 and October 3, 2020 for the Company’s defined benefit pension plans: Nine fiscal months ended October 2, 2021 Nine fiscal months ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 3,548 $ - $ 3,260 Interest cost 762 2,246 1,025 2,804 Expected return on plan assets - (1,250 ) - (1,490 ) Amortization of prior service cost 108 150 108 91 Amortization of losses 1,340 5,622 893 4,851 Curtailment and settlement losses - 604 - 777 Net periodic benefit cost $ 2,210 $ 10,920 $ 2,026 $ 10,293 Other Postretirement Benefits The following table shows the components of the net periodic benefit cost for the third fiscal quarters of 2021 and 2020 for the Company’s other postretirement benefit plans: Fiscal quarter ended October 2, 2021 Fiscal quarter ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 25 $ 70 $ 28 $ 73 Interest cost 41 10 59 16 Amortization of losses (gains) 13 29 7 33 Net periodic benefit cost $ 79 $ 109 $ 94 $ 122 The following table shows the components of the net periodic pension cost for the nine fiscal months ended October 2, 2021 and October 3, 2020 for the Company’s other postretirement benefit plans: Nine fiscal months ended October 2, 2021 Nine fiscal months ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 76 $ 211 $ 84 $ 210 Interest cost 123 32 177 47 Amortization of losses (gains) 39 88 20 95 Net periodic benefit cost $ 238 $ 331 $ 281 $ 352

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Oct. 02, 2021
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 9 – Stock-Based Compensation The Company has various stockholder-approved programs which allow for the grant of stock-based compensation to officers, employees, and non-employee directors of the Company. The amount of compensation cost related to stock-based payment transactions is measured based on the grant-date fair value of the equity instruments issued. The Company determines compensation cost for restricted stock units (“RSUs”) and phantom stock units based on the grant-date fair value of the underlying common stock adjusted for expected dividends paid over the required vesting period for non-participating awards. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award. The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Restricted stock units $ 828 $ 732 $ 5,567 4,390 Phantom stock units - - 209 215 Total $ 828 $ 732 $ 5,776 4,605 The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at October 2, 2021 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 4,229 0.9 Phantom stock units - n/a Total $ 4,229 The Company currently expects all performance-based RSUs to vest and all of the associated unrecognized compensation cost for performance-based RSUs presented in the table above to be recognized. Restricted Stock Units RSU activity under the 2007 Program as of October 2, 2021 and changes during the nine fiscal months then ended are presented below (number of RSUs in thousands) Number of RSUs Weighted Average Grant-date Fair Value per Unit Outstanding: January 1, 2021 793 $ 18.90 Granted 319 22.07 Vested* (235 ) 18.79 Cancelled or forfeited - - Outstanding at October 2, 2021 877 $ 20.08 Expected to vest at October 2, 2021 877 * The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements. The number of performance-based RSUs that are scheduled to vest increases ratably based on the achievement of defined performance criteria between the established target and maximum levels. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands) Vesting Date Expected to Vest Not Expected to Vest Total January 1, 2022 174 - 174 January 1, 2023 152 - 152 January 1, 2024 165 - 165 Phantom Stock Units Phantom stock unit activity under the phantom stock plan as of October 2, 2021 and changes during the nine fiscal months then ended are presented below (number of phantom stock units in thousands) Number of units Grant-date Fair Value per Unit Outstanding: January 1, 2021 198 Granted 10 $ 20.89 Dividend equivalents issued 3 Outstanding at October 2, 2021 211

Segment Information

Segment Information	9 Months Ended
	Oct. 02, 2021
Segment Information [Abstract]
Segment Information	Note 10 – Segment Information The following tables set forth business segment information: MOSFETs Diodes Optoelectronic Components Resistors Inductors Capacitors Corporate / Other* Total Fiscal quarter ended October 2, 2021 : Net revenues $ 175,499 $ 185,306 $ 70,750 $ 181,189 $ 84,816 $ 116,103 $ - $ 813,663 Gross profit $ 53,868 $ 46,756 $ 23,810 $ 49,729 $ 26,857 $ 24,716 $ - $ 225,736 Segment operating income $ 43,717 $ 41,363 $ 19,708 $ 43,547 $ 24,368 $ 19,913 $ - $ 192,616 Fiscal quarter ended October 3, 2020 : Net revenues $ 133,976 $ 123,744 $ 64,955 $ 145,362 $ 79,399 $ 92,724 $ - $ 640,160 Gross profit $ 29,649 $ 20,843 $ 21,289 $ 35,186 $ 26,597 $ 18,387 $ (242 ) $ 151,709 Segment operating income $ 20,148 $ 15,828 $ 17,184 $ 30,127 $ 24,106 $ 13,703 $ (242 ) $ 120,854 Nine fiscal months ended October 2, 2021 : Net revenues $ 496,659 $ 517,299 $ 224,316 $ 562,513 $ 253,813 $ 342,815 $ - $ 2,397,415 Gross Profit $ 138,410 $ 122,929 $ 73,958 $ 161,631 $ 83,288 $ 77,741 $ - $ 657,957 Segment Operating Income $ 108,434 $ 106,304 $ 61,070 $ 142,288 $ 75,902 $ 62,462 $ - $ 556,460 Nine fiscal months ended October 3, 2020 : Net revenues $ 369,813 $ 363,274 $ 168,264 $ 444,982 $ 218,369 $ 270,016 $ - $ 1,834,718 Gross Profit $ 84,779 $ 65,265 $ 47,602 $ 112,472 $ 69,836 $ 53,960 $ (4,295 ) $ 429,619 Segment Operating Income $ 56,408 $ 50,064 $ 35,818 $ 96,891 $ 62,129 $ 39,297 $ (4,295 ) $ 336,312 * Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Reconciliation: Segment Operating Income $ 192,616 $ 120,854 $ 556,460 $ 336,312 Restructuring and Severance Costs - - - (743 ) Impact of the COVID-19 Pandemic on Selling, General, and Administrative Expenses - 441 - 871 Unallocated Selling, General, and Administrative Expenses (69,095 ) (59,805 ) (210,303 ) (186,742 ) Consolidated Operating Income $ 123,521 $ 61,490 $ 346,157 $ 149,698 Unallocated Other Income (Expense) (7,106 ) (15,766 ) (25,405 ) (38,100 ) Consolidated Income Before Taxes $ 116,415 $ 45,724 $ 320,752 $ 111,598 The Company has a broad line of products that it sells to OEMs, EMS companies, and independent distributors. The distribution of sales by customer type is shown below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Distributors $ 483,766 $ 325,695 $ 1,400,700 $ 980,703 OEMs 278,358 273,664 850,413 725,592 EMS companies 51,539 40,801 146,302 128,423 Total Revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718 Net revenues were attributable to customers in the following regions: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Asia $ 365,133 $ 270,451 $ 1,034,936 $ 748,160 Europe 263,650 213,296 800,801 626,276 Americas 184,880 156,413 561,678 460,282 Total Revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718 The Company generates substantially all of its revenue from product sales to end customers in the industrial, automotive, telecommunications, computing, consumer products, power supplies, military and aerospace, and medical end markets. Sales by end market are presented below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Industrial $ 335,047 $ 209,473 $ 927,981 $ 651,461 Automotive 240,764 216,641 743,766 552,418 Telecommunications 24,580 27,845 72,438 91,033 Computing 58,703 51,032 183,234 151,974 Consumer Products 43,839 33,353 128,243 76,477 Power Supplies 42,082 29,112 119,373 86,482 Military and Aerospace 40,198 40,582 124,909 125,968 Medical 28,450 32,122 97,471 98,905 Total revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718

Earnings Per Share

Earnings Per Share	9 Months Ended
	Oct. 02, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 11 – Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands) Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Numerator: Net earnings attributable to Vishay stockholders $ 96,820 $ 33,484 $ 261,447 $ 85,356 Denominator: Denominator for basic earnings per share: Weighted average shares 144,808 144,658 144,792 144,636 Outstanding phantom stock units 209 196 208 195 Adjusted weighted average shares 145,017 144,854 145,000 144,831 Effect of dilutive securities: Convertible debt instruments - 5 3 35 Restricted stock units 441 338 452 355 Dilutive potential common shares 441 343 455 390 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,458 145,197 145,455 145,221 Basic earnings per share attributable to Vishay stockholders $ 0.67 $ 0.23 $ 1.80 $ 0.59 Diluted earnings per share attributable to Vishay stockholders $ 0.67 $ 0.23 $ 1.80 $ 0.59 Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands) Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Convertible debt instruments: Convertible Senior Notes, due 2025 - 16,009 - 17,806 Convertible Senior Debentures, due 2041 - 156 - 133 Weighted average other 317 325 317 346 If the average market price of Vishay common stock is less than the effective conversion price of the convertible senior notes due 2025, no shares are included in the diluted earnings per share computation for the convertible senior notes due 2025. Upon Vishay exercising its existing right to legally amend the indenture governing the convertible senior notes due 2025, he average market price of Vishay common stock is less than the effective conversion price of the convertible senior notes due 2025.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Oct. 02, 2021
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 12 – Fair Value Measurements The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels: Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3: Unobservable inputs that reflect the Company’s own assumptions. An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented. The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis: Total Fair Value Level 1 Level 2 Level 3 October 2, 2021 Assets: Assets held in rabbi trusts $ 58,169 $ 32,436 $ 25,733 $ - Available for sale securities $ 4,669 4,669 - - $ 62,838 $ 37,105 $ 25,733 $ - December 31, 2020 Assets: Assets held in rabbi trusts $ 57,892 $ 34,145 23,747 $ - Available for sale securities $ 4,917 4,917 - - $ 62,809 $ 39,062 $ 23,747 $ - The Company maintains non-qualified trusts, referred to as “rabbi” trusts, to fund payments under deferred compensation and non-qualified pension plans. Rabbi trust assets consist primarily of marketable securities, classified as available-for-sale and company-owned life insurance assets. The marketable securities held in the rabbi trusts are valued using quoted market prices on the last business day of the period. The company-owned life insurance assets are valued in consultation with the Company’s insurance brokers using the value of underlying assets of the insurance contracts. The fair value measurement of the marketable securities held in the rabbi trust is considered a Level 1 measurement and the measurement of the company-owned life insurance assets is considered a Level 2 measurement within the fair value hierarchy. The Company holds investments in debt securities that are intended to fund a portion of its pension and other postretirement benefit obligations outside of the United States. The investments are valued based on quoted market prices on the last business day of the period. The fair value measurement of the investments is considered a Level 1 measurement within the fair value hierarchy. The Company enters into forward contracts with highly-rated financial institutions to mitigate the foreign currency risk associated with intercompany loans denominated in a currency other than the legal entity's functional currency. The notional amount of the forward contracts was $100,000 as of October 2, 2021 and December 31, 2020. The forward contracts are short-term in nature and are expected to be renewed at the Company's discretion until the intercompany loans are repaid. We have not designated the forward contracts as hedges for accounting purposes, and as such the change in the fair value of the contracts is recognized in the consolidated condensed statements of operations as a component of other income (expense). The Company estimates the fair value of the forward contracts based on applicable and commonly used pricing models using current market information and is considered a Level 2 measurement within the fair value hierarchy. The value of the forward contracts was immaterial as of October 2, 2021 and December 31, 2020. The Company does not utilize derivatives or other financial instruments for trading or other speculative purposes. The fair value of the long-term debt, excluding the derivative liabilities and deferred financing costs, at October 2, 2021 and December 31, 2020 is approximately $486,800 and $491,400, respectively, compared to its carrying value, excluding the deferred financing costs, of $465,344 and $406,398, respectively. The Company estimates the fair value of its long-term debt using a combination of quoted market prices for similar financing arrangements and expected future payments discounted at risk-adjusted rates, which are considered Level 2 inputs. At October 2, 2021 and December 31, 2020, the Company’s short-term investments were comprised of time deposits with financial institutions that have maturities that exceed 90 days from the date of acquisition; however they all mature within one year from the respective balance sheet dates. The Company's short-term investments are accounted for as held-to-maturity debt instruments, at amortized cost, which approximates their fair value. The investments are funded with excess cash not expected to be needed for operations prior to maturity; therefore, the Company believes it has the intent and ability to hold the short-term investments until maturity. At each reporting date, the Company performs an evaluation to determine if any unrealized losses are other-than-temporary. No other-than-temporary impairments have been recognized on these securities, and there are no unrecognized holding gains or losses for these securities during the periods presented. There have been no transfers to or from the held-to-maturity classification. All decreases in the account balance are due to returns of principal at the securities’ maturity dates. Interest on the securities is recognized as interest income when earned. At October 2, 2021 and December 31, 2020, the Company’s cash and cash equivalents were comprised of demand deposits, time deposits with maturities of three months or less when purchased, and money market funds. The Company estimates the fair value of its cash, cash equivalents, and short-term investments using level 2 inputs. Based on the current interest rates for similar investments with comparable credit risk and time to maturity, the fair value of the Company's cash, cash equivalents, and held-to-maturity short-term investments approximate the carrying amounts reported in the consolidated condensed balance sheets. The Company’s financial instruments also include accounts receivable and accounts payable. The carrying amounts for these financial instruments reported in the consolidated condensed balance sheets approximate their fair values.

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Oct. 02, 2021
Basis of Presentation [Abstract]
Fiscal Period, Policy	The Company reports interim financial information for 13-week periods beginning on a Sunday and ending on a Saturday, except for the first fiscal quarter, which always begins on January 1, and the fourth fiscal quarter, which always ends on December 31. The four fiscal quarters in 2021 end on April 3, 2021, July 3, 2021, October 2, 2021, and December 31, 2021, respectively. The four fiscal quarters in 2020 ended on April 4, 2020, July 4, 2020, October 3, 2020, and December 31, 2020, respectively.
Recently Adopted Accounting Guidance	Recently Adopted Accounting Guidance In August 2020, the Financial Accounting Standards Board ("FASB") issued ASU No. 2020-06, Debt – Debt With Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging – Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity
Reclassifications	Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Income Taxes (Policies)

Income Taxes (Policies)	9 Months Ended
	Oct. 02, 2021
Income Taxes [Abstract]
Effective Income Tax Rate Description	The provision for income taxes consists of provisions for federal, state, and foreign income taxes. The effective tax rates for the periods ended October 2, 2021 and October 3, 2020 reflect the Company’s expected tax rate on reported income before income tax and tax adjustments. The Company operates in a global environment with significant operations in various jurisdictions outside the United States. Accordingly, the consolidated income tax rate is a composite rate reflecting the Company’s earnings and the applicable tax rates in the various jurisdictions where the Company operates.

Stock-Based Compensation (Polic

Stock-Based Compensation (Policies)	9 Months Ended
	Oct. 02, 2021
Stock-Based Compensation [Abstract]
Share-based Compensation, Option and Incentive Plans Policy	The amount of compensation cost related to stock-based payment transactions is measured based on the grant-date fair value of the equity instruments issued. The Company determines compensation cost for restricted stock units (“RSUs”) and phantom stock units based on the grant-date fair value of the underlying common stock adjusted for expected dividends paid over the required vesting period for non-participating awards. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award.

Earnings Per Share (Policies)

Earnings Per Share (Policies)	9 Months Ended
	Oct. 02, 2021
Earnings Per Share [Abstract]
Discussion on convertible debt included in computation of earnings per share diluted	If the average market price of Vishay common stock is less than the effective conversion price of the convertible senior notes due 2025, no shares are included in the diluted earnings per share computation for the convertible senior notes due 2025. Upon Vishay exercising its existing right to legally amend the indenture governing the convertible senior notes due 2025, he average market price of Vishay common stock is less than the effective conversion price of the convertible senior notes due 2025.

Fair Value Measurements (Polici

Fair Value Measurements (Policies)	9 Months Ended
	Oct. 02, 2021
Fair Value Measurements [Abstract]
Fair Value of Financial Instruments, Policy	The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels: Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3: Unobservable inputs that reflect the Company’s own assumptions. An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented.

Leases (Tables)

Leases (Tables)	9 Months Ended
	Oct. 02, 2021
Leases [Abstract]
Right of Use Assets and Lease Liabilities	The net right of use assets and lease liabilities recognized on the consolidated condensed balance sheets for the Company's operating leases were as follows: October 2, 2021 December 31, 2020 Right of use assets Operating Leases Buildings and improvements $ 105,072 $ 97,429 Machinery and equipment 5,011 5,011 Total $ 110,083 $ 102,440 Current lease liabilities Operating Leases Buildings and improvements $ 18,944 $ 19,370 Machinery and equipment 2,639 2,704 Total $ 21,583 $ 22,074 Long-term lease liabilities Operating Leases Buildings and improvements $ 91,744 $ 83,926 Machinery and equipment 2,320 2,294 Total $ 94,064 $ 86,220 Total lease liabilities $ 115,647 $ 108,294
Lease Expense	Lease expense is classified in the statements of operations based on asset use. Total lease cost recognized on the consolidated condensed statements of operations is as follows: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Lease expense Operating lease expense $ 6,170 $ 5,898 $ 18,570 $ 17,310 Short-term lease expense 691 260 1,444 679 Variable lease expense 97 11 290 40 Total lease expense $ 6,958 $ 6,169 $ 20,304 $ 18,029
Undiscounted Future Lease Payments for Operating Lease Liabilities	The undiscounted future lease payments for the Company's operating lease liabilities are as follows: October 2, 2021 2021 (excluding the nine fiscal months ended October 2, 2021) $ 5,692 2022 21,305 2023 19,061 2024 16,745 2025 15,255 Thereafter 71,276

Restructuring and Related Act_2

Restructuring and Related Activities (Tables)	9 Months Ended
	Oct. 02, 2021
Restructuring and Related Activities [Abstract]
Restructuring and Related Expenses	The following table summarizes the activity to date related to this program: Expense recorded in 2019 $ 24,139 Cash paid (1,330 ) Foreign currency translation 35 Balance at December 31, 2019 $ 22,844 Expense recorded in 2020 743 Cash paid (10,813 ) Foreign currency translation 683 Balance at December 31, 2020 $ 13,457 Cash paid (10,624 ) Foreign currency translation (86 ) Balance at October 2, 2021 $ 2,747

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Oct. 02, 2021
Long-Term Debt [Abstract]
Long-term Debt Instruments	Long-term debt consists of the following: October 2, 2021 December 31, 2020 Credit facility $ - $ - Convertible senior notes, due 2025 465,344 406,268 Convertible senior debentures, due 2040 - 130 Deferred financing costs (10,496 ) (11,512 ) 454,848 394,886 Less current portion - - $ 454,848 $ 394,886
Key Facts and Terms of the Convertible Debt Instruments	The following table summarizes some key facts and terms regarding the outstanding convertible senior notes due 2025 as of October 2, 2021: Convertible Senior Notes Due 2025 Issuance date June 12, 2018 Maturity date June 15, 2025 Principal amount as of October 2, 2021 $ 465,344 Cash coupon rate (per annum) 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 5.50 % Conversion rate effective September 9, 2021 (per $1 principal amount) 31.9258 Effective conversion price effective September 9, 2021 (per share) $ 31.32 130% of the conversion price (per share) $ 40.72 Call date n/a
Liability and Equity of Component of Convertible Debt Instruments	The carrying value of the convertible senior notes due 2025 was $465,344 as of October 2, 2021. The carrying value of the liability and equity components of the convertible debt instruments prior to the adoption of ASU No. 2020-06 are reflected in the Company’s consolidated condensed balance sheet as follows: Principal amount of the debt instruments Unamortized discount Carrying value of liability component Equity component (including temporary equity) -net carrying value December 31, 2020 Convertible senior notes due 2025 $ 465,344 (59,076 ) $ 406,268 $ 66,127 Convertible senior debentures due 2040 $ 300 (170 ) $ 130 $ 121 Total $ 465,644 $ (59,246 ) $ 406,398 $ 66,248
Convertible Debt Instruments, Interest Expense	Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the fiscal quarters ended: Contractual coupon interest Non-cash amortization of debt discount Other non-cash interest expense Total interest expense related to the debt instruments October 2, 2021 Convertible senior notes due 2025 $ 2,618 - 433 $ 3,051 October 3, 2020 Convertible senior notes due 2025 $ 2,839 3,099 382 $ 6,320 Convertible senior debentures $ 16 8 - $ 24 Total $ 2,855 $ 3,107 $ 382 $ 6,344 Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the nine fiscal months ended: Contractual coupon interest Non-cash amortization of debt discount Other non-cash interest expense Total interest expense related to the debt instruments October 2, 2021 Convertible senior notes due 2025 $ 7,854 - 1,299 $ 9,153 October 3, 2020 Convertible senior notes due 2025 $ 9,480 10,195 1,271 $ 20,946 Convertible senior debentures $ 76 37 - $ 113 Total $ 9,556 $ 10,232 $ 1,271 $ 21,059

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Oct. 02, 2021
Revenue Recognition [Abstract]
Sales returns and allowances accrual activity	Sales returns and allowances accrual activity is shown below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Beginning balance $ 41,262 $ 39,432 $ 39,629 $ 40,508 Sales allowances 22,850 22,190 68,689 64,046 Credits issued (28,948 ) (27,610 ) (72,744 ) (70,583 ) Foreign currency (314 ) 534 (724 ) 575 Ending balance $ 34,850 $ 34,546 $ 34,850 $ 34,546

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Oct. 02, 2021
Accumulated Other Comprehensive Income (Loss) [Abstract]
Other Comprehensive Income (Loss) and Income Tax Effects Allocated	The cumulative balance of each component of other comprehensive income (loss) and the income tax effects allocated to each component are as follows: Pension and other post- retirement actuarial items Currency translation adjustment Total Balance at January 1, 2021 $ (77,075 ) $ 90,634 $ 13,559 Other comprehensive income before reclassifications - (34,906 ) $ (34,906 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (34,906 ) $ (34,906 ) Amounts reclassified out of AOCI 7,951 - $ 7,951 Tax effect (2,217 ) - $ (2,217 ) Amounts reclassified out of AOCI, net of tax 5,734 - $ 5,734 Net other comprehensive income $ 5,734 $ (34,906 ) $ (29,172 ) Balance at October 2, 2021 $ (71,341 ) $ 55,728 $ (15,613 )

Pensions and Other Postretire_2

Pensions and Other Postretirement Benefits (Tables)	9 Months Ended
	Oct. 02, 2021
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Benefit Cost for Pension and Other Postretirement Benefit Plans	The following table shows the components of the net periodic pension cost for the third fiscal quarters of 2021 and 2020 for the Company’s defined benefit pension plans: Fiscal quarter ended October 2, 2021 Fiscal quarter ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 1,167 $ - $ 1,115 Interest cost 254 738 342 961 Expected return on plan assets - (414 ) - (504 ) Amortization of prior service cost 36 49 36 31 Amortization of losses 447 1,851 298 1,671 Curtailment and settlement losses - 203 - 317 Net periodic benefit cost $ 737 $ 3,594 $ 676 $ 3,591 The following table shows the components of the net periodic pension cost for the nine fiscal months ended October 2, 2021 and October 3, 2020 for the Company’s defined benefit pension plans: Nine fiscal months ended October 2, 2021 Nine fiscal months ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 3,548 $ - $ 3,260 Interest cost 762 2,246 1,025 2,804 Expected return on plan assets - (1,250 ) - (1,490 ) Amortization of prior service cost 108 150 108 91 Amortization of losses 1,340 5,622 893 4,851 Curtailment and settlement losses - 604 - 777 Net periodic benefit cost $ 2,210 $ 10,920 $ 2,026 $ 10,293
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Benefit Cost for Pension and Other Postretirement Benefit Plans	The following table shows the components of the net periodic benefit cost for the third fiscal quarters of 2021 and 2020 for the Company’s other postretirement benefit plans: Fiscal quarter ended October 2, 2021 Fiscal quarter ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 25 $ 70 $ 28 $ 73 Interest cost 41 10 59 16 Amortization of losses (gains) 13 29 7 33 Net periodic benefit cost $ 79 $ 109 $ 94 $ 122 The following table shows the components of the net periodic pension cost for the nine fiscal months ended October 2, 2021 and October 3, 2020 for the Company’s other postretirement benefit plans: Nine fiscal months ended October 2, 2021 Nine fiscal months ended October 3, 2020 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 76 $ 211 $ 84 $ 210 Interest cost 123 32 177 47 Amortization of losses (gains) 39 88 20 95 Net periodic benefit cost $ 238 $ 331 $ 281 $ 352

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Oct. 02, 2021
Stock-Based Compensation [Abstract]
Summary of Recognized Stock-based Compensation Expense	The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Restricted stock units $ 828 $ 732 $ 5,567 4,390 Phantom stock units - - 209 215 Total $ 828 $ 732 $ 5,776 4,605
Summary of Unrecognized Compensation Cost and Weighted Average Remaining Amortization Periods	The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at October 2, 2021 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 4,229 0.9 Phantom stock units - n/a Total $ 4,229
RSU Activity	RSU activity under the 2007 Program as of October 2, 2021 and changes during the nine fiscal months then ended are presented below (number of RSUs in thousands) Number of RSUs Weighted Average Grant-date Fair Value per Unit Outstanding: January 1, 2021 793 $ 18.90 Granted 319 22.07 Vested* (235 ) 18.79 Cancelled or forfeited - - Outstanding at October 2, 2021 877 $ 20.08 Expected to vest at October 2, 2021 877 * The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.
RSUs with Performance-Based Vesting Criteria	The number of performance-based RSUs that are scheduled to vest increases ratably based on the achievement of defined performance criteria between the established target and maximum levels. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands) Vesting Date Expected to Vest Not Expected to Vest Total January 1, 2022 174 - 174 January 1, 2023 152 - 152 January 1, 2024 165 - 165
Phantom Stock Unit Activity Under the Phantom Stock Plan	Phantom stock unit activity under the phantom stock plan as of October 2, 2021 and changes during the nine fiscal months then ended are presented below (number of phantom stock units in thousands) Number of units Grant-date Fair Value per Unit Outstanding: January 1, 2021 198 Granted 10 $ 20.89 Dividend equivalents issued 3 Outstanding at October 2, 2021 211

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Oct. 02, 2021
Segment Information [Abstract]
Segment Reporting Information by Segment	The following tables set forth business segment information: MOSFETs Diodes Optoelectronic Components Resistors Inductors Capacitors Corporate / Other* Total Fiscal quarter ended October 2, 2021 : Net revenues $ 175,499 $ 185,306 $ 70,750 $ 181,189 $ 84,816 $ 116,103 $ - $ 813,663 Gross profit $ 53,868 $ 46,756 $ 23,810 $ 49,729 $ 26,857 $ 24,716 $ - $ 225,736 Segment operating income $ 43,717 $ 41,363 $ 19,708 $ 43,547 $ 24,368 $ 19,913 $ - $ 192,616 Fiscal quarter ended October 3, 2020 : Net revenues $ 133,976 $ 123,744 $ 64,955 $ 145,362 $ 79,399 $ 92,724 $ - $ 640,160 Gross profit $ 29,649 $ 20,843 $ 21,289 $ 35,186 $ 26,597 $ 18,387 $ (242 ) $ 151,709 Segment operating income $ 20,148 $ 15,828 $ 17,184 $ 30,127 $ 24,106 $ 13,703 $ (242 ) $ 120,854 Nine fiscal months ended October 2, 2021 : Net revenues $ 496,659 $ 517,299 $ 224,316 $ 562,513 $ 253,813 $ 342,815 $ - $ 2,397,415 Gross Profit $ 138,410 $ 122,929 $ 73,958 $ 161,631 $ 83,288 $ 77,741 $ - $ 657,957 Segment Operating Income $ 108,434 $ 106,304 $ 61,070 $ 142,288 $ 75,902 $ 62,462 $ - $ 556,460 Nine fiscal months ended October 3, 2020 : Net revenues $ 369,813 $ 363,274 $ 168,264 $ 444,982 $ 218,369 $ 270,016 $ - $ 1,834,718 Gross Profit $ 84,779 $ 65,265 $ 47,602 $ 112,472 $ 69,836 $ 53,960 $ (4,295 ) $ 429,619 Segment Operating Income $ 56,408 $ 50,064 $ 35,818 $ 96,891 $ 62,129 $ 39,297 $ (4,295 ) $ 336,312 *
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Reconciliation: Segment Operating Income $ 192,616 $ 120,854 $ 556,460 $ 336,312 Restructuring and Severance Costs - - - (743 ) Impact of the COVID-19 Pandemic on Selling, General, and Administrative Expenses - 441 - 871 Unallocated Selling, General, and Administrative Expenses (69,095 ) (59,805 ) (210,303 ) (186,742 ) Consolidated Operating Income $ 123,521 $ 61,490 $ 346,157 $ 149,698 Unallocated Other Income (Expense) (7,106 ) (15,766 ) (25,405 ) (38,100 ) Consolidated Income Before Taxes $ 116,415 $ 45,724 $ 320,752 $ 111,598
Disaggregation of Revenue	The Company has a broad line of products that it sells to OEMs, EMS companies, and independent distributors. The distribution of sales by customer type is shown below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Distributors $ 483,766 $ 325,695 $ 1,400,700 $ 980,703 OEMs 278,358 273,664 850,413 725,592 EMS companies 51,539 40,801 146,302 128,423 Total Revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718 Net revenues were attributable to customers in the following regions: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Asia $ 365,133 $ 270,451 $ 1,034,936 $ 748,160 Europe 263,650 213,296 800,801 626,276 Americas 184,880 156,413 561,678 460,282 Total Revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718 The Company generates substantially all of its revenue from product sales to end customers in the industrial, automotive, telecommunications, computing, consumer products, power supplies, military and aerospace, and medical end markets. Sales by end market are presented below: Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Industrial $ 335,047 $ 209,473 $ 927,981 $ 651,461 Automotive 240,764 216,641 743,766 552,418 Telecommunications 24,580 27,845 72,438 91,033 Computing 58,703 51,032 183,234 151,974 Consumer Products 43,839 33,353 128,243 76,477 Power Supplies 42,082 29,112 119,373 86,482 Military and Aerospace 40,198 40,582 124,909 125,968 Medical 28,450 32,122 97,471 98,905 Total revenue $ 813,663 $ 640,160 $ 2,397,415 $ 1,834,718

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Oct. 02, 2021
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings per Share	The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands) Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Numerator: Net earnings attributable to Vishay stockholders $ 96,820 $ 33,484 $ 261,447 $ 85,356 Denominator: Denominator for basic earnings per share: Weighted average shares 144,808 144,658 144,792 144,636 Outstanding phantom stock units 209 196 208 195 Adjusted weighted average shares 145,017 144,854 145,000 144,831 Effect of dilutive securities: Convertible debt instruments - 5 3 35 Restricted stock units 441 338 452 355 Dilutive potential common shares 441 343 455 390 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,458 145,197 145,455 145,221 Basic earnings per share attributable to Vishay stockholders $ 0.67 $ 0.23 $ 1.80 $ 0.59 Diluted earnings per share attributable to Vishay stockholders $ 0.67 $ 0.23 $ 1.80 $ 0.59
Weighted Average Potential Common Shares that Would have an Antidilutive Effect or have Unsatisfied Performance Conditions	Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands) Fiscal quarters ended Nine fiscal months ended October 2, 2021 October 3, 2020 October 2, 2021 October 3, 2020 Convertible debt instruments: Convertible Senior Notes, due 2025 - 16,009 - 17,806 Convertible Senior Debentures, due 2041 - 156 - 133 Weighted average other 317 325 317 346

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Oct. 02, 2021
Fair Value Measurements [Abstract]
Fair Value of Assets and Liabilities Carried at Fair Value Measured on Recurring Basis	The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis: Total Fair Value Level 1 Level 2 Level 3 October 2, 2021 Assets: Assets held in rabbi trusts $ 58,169 $ 32,436 $ 25,733 $ - Available for sale securities $ 4,669 4,669 - - $ 62,838 $ 37,105 $ 25,733 $ - December 31, 2020 Assets: Assets held in rabbi trusts $ 57,892 $ 34,145 23,747 $ - Available for sale securities $ 4,917 4,917 - - $ 62,809 $ 39,062 $ 23,747 $ -

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	Oct. 02, 2021	Apr. 03, 2021	Dec. 31, 2020	Apr. 04, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change for adoption of ASU	$ 379,672		$ 138,990
Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change for adoption of ASU		$ (45,512)	20,566	$ (1,070)
Long-term Debt [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change for adoption of ASU			59,246
Additional Paid-in Capital [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change for adoption of ASU			$ (66,078)

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020	Dec. 31, 2020
Assets and Liabilities [Abstract]
Right of use assets	$ 110,083		$ 110,083		$ 102,440
Current lease liabilities	21,583		21,583		22,074
Long-term lease liabilities	94,064		94,064		86,220
Total lease liabilities	115,647		115,647		108,294
Lease expense [Abstract]
Operating lease expense	6,170	$ 5,898	18,570	$ 17,310
Short-term lease expense	691	260	1,444	679
Variable lease expense	97	11	290	40
Total lease expense	$ 6,958	$ 6,169	20,304	18,029
Cash paid for operating leases			$ 18,000	$ 18,703
Weighted-average remaining lease term - operating leases	9 years 3 months 18 days		9 years 3 months 18 days
Weighted-average discount rate - operating leases	5.60%		5.60%
Undiscounted future lease payments for operating lease liabilities [Abstract]
2021	$ 5,692		$ 5,692
2022	21,305		21,305
2023	19,061		19,061
2024	16,745		16,745
2025	15,255		15,255
Thereafter	71,276		71,276
Building and Improvements [Member]
Assets and Liabilities [Abstract]
Right of use assets	105,072		105,072		97,429
Current lease liabilities	18,944		18,944		19,370
Long-term lease liabilities	91,744		91,744		83,926
Machinery and Equipment [Member]
Assets and Liabilities [Abstract]
Right of use assets	5,011		5,011		5,011
Current lease liabilities	2,639		2,639		2,704
Long-term lease liabilities	$ 2,320		$ 2,320		$ 2,294

Restructuring and Related Act_3

Restructuring and Related Activities (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2019	Oct. 02, 2021	Oct. 03, 2020	Dec. 31, 2020
Restructuring Reserve [Roll Forward]
Restructuring and severance costs		$ 0	$ 743
2019 Global Cost Reduction and Management Rejuvenation Programs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current		1,738
Restructuring reserve, noncurrent		1,009
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	$ 24,139			$ 743
Cash paid	(1,330)	(10,624)		(10,813)
Foreign currency translation	35	(86)		683
Balance at end of period	$ 22,844	2,747		$ 13,457
Expected restructuring costs		$ 24,882

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 02, 2021	Oct. 02, 2021
Income Taxes [Abstract]
Decrease in liabilities for unrecognized tax benefits		$ 1,328
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)	$ (5,714)
Adoption of New Accounting Standard [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)		12,127
Change in Tax Regulation [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)		$ (8,276)

Long-Term Debt (Details)

Long-Term Debt (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021USD ($)$ / shares	Oct. 03, 2020USD ($)	Oct. 02, 2021USD ($)$ / shares	Oct. 03, 2020USD ($)	Dec. 31, 2020USD ($)
Debt Instruments [Abstract]
Credit facility	$ 0		$ 0		$ 0
Deferred financing costs	(10,496)		(10,496)		(11,512)
Long-term debt	454,848		454,848		394,886
Less current portion	0		0		0
Long-term debt, less current portion	454,848		454,848		394,886
Interest expense [Abstract]
Contractual coupon interest		$ 2,855		$ 9,556
Non-cash amortization of debt discount		3,107	0	10,232
Other non-cash interest expense (income)		382		1,271
Total interest expense related to the debentures		6,344		21,059
Purchase price of extinguished debt			300	148,177
Loss on extinguishment of debt, including the write-off of portion of unamortized debt issuance costs	0	(3,454)	0	(7,520)
Convertible Senior Notes, Due 2025 [Member]
Debt Instruments [Abstract]
Convertible debt	$ 465,344		$ 465,344		406,268
Issuance date			Jun. 12, 2018
Debt maturity date			Jun. 15, 2025
Cash coupon rate	2.25%		2.25%
Nonconvertible debt borrowing rate at issuance	5.50%		5.50%
Effective conversion rate			31.9258
Effective conversion price (in dollars per share) | $ / shares	$ 31.32		$ 31.32
130% of the conversion price (in dollars per share) | $ / shares			$ 40.72
Debt instrument percentage of conversion price			130.00%
Debt instrument percentage of sales price of common stock	98.00%		98.00%
Maximum threshold of quarterly cash dividends per share of common stock for not adjusting conversion rate of convertible notes | $ / shares			$ 0.085
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	$ 465,344		$ 465,344
Interest expense [Abstract]
Contractual coupon interest	2,618	2,839	7,854	9,480
Non-cash amortization of debt discount	0	3,099	0	10,195
Other non-cash interest expense (income)	433	382	1,299	1,271
Total interest expense related to the debentures	3,051	6,320	9,153	20,946
Convertible Senior Debentures, Due 2040 [Member]
Debt Instruments [Abstract]
Convertible debt	$ 0		$ 0		130
Convertible Senior Debentures [Member]
Interest expense [Abstract]
Contractual coupon interest		16		76
Non-cash amortization of debt discount		8		37
Other non-cash interest expense (income)		0		0
Total interest expense related to the debentures		$ 24		$ 113
Convertible Debt [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt					465,644
Unamortized discount					(59,246)
Carrying value of liability component					406,398
Equity component - net carrying value					66,248
Convertible Debt [Member] | Convertible Senior Notes, Due 2025 [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt					465,344
Unamortized discount					(59,076)
Carrying value of liability component					406,268
Equity component - net carrying value					66,127
Convertible Debt [Member] | Convertible Senior Debentures, Due 2040 [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt					300
Unamortized discount					(170)
Carrying value of liability component					130
Equity component - net carrying value					$ 121

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Sales returns and allowances accrual activity [Roll Forward]
Beginning balance	$ 41,262	$ 39,432	$ 39,629	$ 40,508
Sales allowances	22,850	22,190	68,689	64,046
Credits issued	(28,948)	(27,610)	(72,744)	(70,583)
Foreign currency	(314)	534	(724)	575
Ending balance	$ 34,850	$ 34,546	$ 34,850	$ 34,546

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Oct. 02, 2021	Jul. 03, 2021	Apr. 03, 2021	Oct. 03, 2020	Jul. 04, 2020	Apr. 04, 2020	Oct. 02, 2021	Oct. 03, 2020
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance			$ 13,559				$ 13,559
Other comprehensive income before reclassifications							(34,906)
Tax effect							0
Other comprehensive income before reclassifications, net of tax							(34,906)
Amounts reclassified out of AOCI							7,951
Tax effect							(2,217)
Amounts reclassified out of AOCI, net of tax							5,734
Net other comprehensive income	$ (15,392)	$ 11,305	(25,085)	$ 22,986	$ 21,848	$ (21,528)	(29,172)	$ 23,306
Ending Balance	(15,613)						(15,613)
Pension and Other Post-Retirement Actuarial Items [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance			(77,075)				(77,075)
Other comprehensive income before reclassifications							0
Tax effect							0
Other comprehensive income before reclassifications, net of tax							0
Amounts reclassified out of AOCI							7,951
Tax effect							(2,217)
Amounts reclassified out of AOCI, net of tax							5,734
Net other comprehensive income							5,734
Ending Balance	(71,341)						(71,341)
Currency Translation Adjustment [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance			90,634				90,634
Other comprehensive income before reclassifications							(34,906)
Tax effect							0
Other comprehensive income before reclassifications, net of tax							(34,906)
Amounts reclassified out of AOCI							0
Tax effect							0
Amounts reclassified out of AOCI, net of tax							0
Net other comprehensive income							(34,906)
Ending Balance	55,728						55,728
Accumulated Other Comprehensive Income (Loss) [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance			13,559				13,559
Net other comprehensive income	(15,392)	$ 11,305	$ (25,085)	$ 22,986	$ 21,848	$ (21,528)
Ending Balance	$ (15,613)						$ (15,613)

Pensions and Other Postretire_3

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Defined Benefit Pension Plans [Member] | U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	254	342	762	1,025
Expected return on plan assets	0	0	0	0
Amortization of prior service cost (credit)	36	36	108	108
Amortization of losses (gains)	447	298	1,340	893
Curtailment and settlement losses	0	0	0	0
Net periodic benefit cost	737	676	2,210	2,026
Defined Benefit Pension Plans [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	1,167	1,115	3,548	3,260
Interest cost	738	961	2,246	2,804
Expected return on plan assets	(414)	(504)	(1,250)	(1,490)
Amortization of prior service cost (credit)	49	31	150	91
Amortization of losses (gains)	1,851	1,671	5,622	4,851
Curtailment and settlement losses	203	317	604	777
Net periodic benefit cost	3,594	3,591	10,920	10,293
Other Postretirement Benefits [Member] | U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	25	28	76	84
Interest cost	41	59	123	177
Amortization of losses (gains)	13	7	39	20
Net periodic benefit cost	79	94	238	281
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	70	73	211	210
Interest cost	10	16	32	47
Amortization of losses (gains)	29	33	88	95
Net periodic benefit cost	$ 109	$ 122	$ 331	$ 352

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		$ 828	$ 732	$ 5,776	$ 4,605
Unrecognized Compensation Cost		4,229		4,229
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		828	732	5,567	4,390
Unrecognized Compensation Cost		$ 4,229		$ 4,229
Weighted Average Remaining Amortization Periods				10 months 24 days
Number of units [Abstract]
Outstanding (in shares)				793
Granted (in shares)				319
Vested (in shares)	[1]			(235)
Cancelled or forfeited (in shares)				0
Outstanding (in shares)		877		877
Expected to vest (in shares)		877		877
Weighted Average Grant-date Fair Value per Unit [Abstract]
Outstanding (in dollars per share)				$ 18.90
Granted (in dollars per share)				22.07
Vested (in dollars per share)	[1]			18.79
Cancelled or forfeited (in dollars per share)				0
Outstanding (in dollars per share)		$ 20.08		$ 20.08
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		$ 0	$ 0	$ 209	$ 215
Unrecognized Compensation Cost		$ 0		$ 0
Number of units [Abstract]
Outstanding (in shares)				198
Granted (in shares)				10
Dividend equivalents issued (in shares)				3
Outstanding (in shares)		211		211
Weighted Average Grant-date Fair Value per Unit [Abstract]
Granted (in dollars per share)				$ 20.89
Scheduled to Vest January 1, 2022 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		174		174
Expected to vest (in shares)		174		174
Not expected to vest (in shares)		0		0
Scheduled to Vest January 1, 2023 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		152		152
Expected to vest (in shares)		152		152
Not expected to vest (in shares)		0		0
Scheduled to Vest January 1, 2024 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		165		165
Expected to vest (in shares)		165		165
Not expected to vest (in shares)		0		0
[1]	The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Segment Reporting Information [Line Items]
Net revenues	$ 813,663	$ 640,160	$ 2,397,415	$ 1,834,718
Gross profit	225,736	151,709	657,957	429,619
Restructuring and severance Costs			0	(743)
Unallocated Selling, General, and Administrative Expenses	(102,215)	(90,219)	(311,800)	(279,178)
Operating income	123,521	61,490	346,157	149,698
Unallocated Other Income (Expense)	(7,106)	(15,766)	(25,405)	(38,100)
Consolidated Income Before Taxes	116,415	45,724	320,752	111,598
Distributors [Member]
Segment Reporting Information [Line Items]
Net revenues	483,766	325,695	1,400,700	980,703
OEMs [Member]
Segment Reporting Information [Line Items]
Net revenues	278,358	273,664	850,413	725,592
EMS Companies [Member]
Segment Reporting Information [Line Items]
Net revenues	51,539	40,801	146,302	128,423
Industrial [Member]
Segment Reporting Information [Line Items]
Net revenues	335,047	209,473	927,981	651,461
Automotive [Member]
Segment Reporting Information [Line Items]
Net revenues	240,764	216,641	743,766	552,418
Telecommunications [Member]
Segment Reporting Information [Line Items]
Net revenues	24,580	27,845	72,438	91,033
Computing [Member]
Segment Reporting Information [Line Items]
Net revenues	58,703	51,032	183,234	151,974
Consumer Products [Member]
Segment Reporting Information [Line Items]
Net revenues	43,839	33,353	128,243	76,477
Power Supplies [Member]
Segment Reporting Information [Line Items]
Net revenues	42,082	29,112	119,373	86,482
Military and Aerospace [Member]
Segment Reporting Information [Line Items]
Net revenues	40,198	40,582	124,909	125,968
Medical [Member]
Segment Reporting Information [Line Items]
Net revenues	28,450	32,122	97,471	98,905
Asia [Member]
Segment Reporting Information [Line Items]
Net revenues	365,133	270,451	1,034,936	748,160
Europe [Member]
Segment Reporting Information [Line Items]
Net revenues	263,650	213,296	800,801	626,276
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	184,880	156,413	561,678	460,282
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	192,616	120,854	556,460	336,312
Operating Segments [Member] | MOSFETS [Member]
Segment Reporting Information [Line Items]
Net revenues	175,499	133,976	496,659	369,813
Gross profit	53,868	29,649	138,410	84,779
Operating income	43,717	20,148	108,434	56,408
Operating Segments [Member] | Diodes [Member]
Segment Reporting Information [Line Items]
Net revenues	185,306	123,744	517,299	363,274
Gross profit	46,756	20,843	122,929	65,265
Operating income	41,363	15,828	106,304	50,064
Operating Segments [Member] | Optoelectronic Components [Member]
Segment Reporting Information [Line Items]
Net revenues	70,750	64,955	224,316	168,264
Gross profit	23,810	21,289	73,958	47,602
Operating income	19,708	17,184	61,070	35,818
Operating Segments [Member] | Resistors [Member]
Segment Reporting Information [Line Items]
Net revenues	181,189	145,362	562,513	444,982
Gross profit	49,729	35,186	161,631	112,472
Operating income	43,547	30,127	142,288	96,891
Operating Segments [Member] | Inductors [Member]
Segment Reporting Information [Line Items]
Net revenues	84,816	79,399	253,813	218,369
Gross profit	26,857	26,597	83,288	69,836
Operating income	24,368	24,106	75,902	62,129
Operating Segments [Member] | Capacitors [Member]
Segment Reporting Information [Line Items]
Net revenues	116,103	92,724	342,815	270,016
Gross profit	24,716	18,387	77,741	53,960
Operating income	19,913	13,703	62,462	39,297
Operating Segments [Member] | Corporate Other [Member]
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Gross profit	0	(242)	0	(4,295)
Operating income	0	(242)	0	(4,295)
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Restructuring and severance Costs	0	0	0	(743)
Impact of COVID-19 Pandemic on Selling, General, and Administrative Expenses	0	441	0	871
Unallocated Selling, General, and Administrative Expenses	(69,095)	(59,805)	(210,303)	(186,742)
Unallocated Other Income (Expense)	$ (7,106)	$ (15,766)	$ (25,405)	$ (38,100)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Numerator [Abstract]
Net earnings attributable to Vishay stockholders	$ 96,820	$ 33,484	$ 261,447	$ 85,356
Denominator [Abstract]
Weighted average shares (in shares)	144,808	144,658	144,792	144,636
Outstanding phantom stock units (in shares)	209	196	208	195
Adjusted weighted average shares - basic (in shares)	145,017	144,854	145,000	144,831
Effect of dilutive securities [Abstract]
Convertible and exchangeable debt instruments (in shares)	0	5	3	35
Restricted stock units (in shares)	441	338	452	355
Dilutive potential common shares (in shares)	441	343	455	390
Denominator for diluted earnings per share [Abstract]
Adjusted weighted average shares - diluted (in shares)	145,458	145,197	145,455	145,221
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
Convertible Senior Notes, Due 2025 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	16,009	0	17,806
Convertible Senior Debentures, Due 2041 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	156	0	133
Weighted Average Other [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	317	325	317	346

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Oct. 02, 2021	Oct. 02, 2021	Dec. 31, 2020
Assets [Abstract]
Held-to-maturity Securities Transferred		$ 0	$ 0
Held-to-maturity Securities, Unrecognized Holding Gain	$ 0	0	0
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities	0		0
Held-to-maturity Securities, Unrecognized Holding Loss	0	0	0
Liabilities [Abstract]
Long-term debt, fair value	486,800	486,800	491,400
Carrying value of long-term debt, excluding derivative liabilities	465,344	465,344	406,398
Derivative, Notional Amount	100,000	100,000	100,000
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	58,169	58,169	57,892
Available for sale securities	4,669	4,669	4,917
Fair value assets	62,838	62,838	62,809
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	32,436	32,436	34,145
Available for sale securities	4,669	4,669	4,917
Fair value assets	37,105	37,105	39,062
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	25,733	25,733	23,747
Available for sale securities	0	0	0
Fair value assets	25,733	25,733	23,747
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	0	0	0
Available for sale securities	0	0	0
Fair value assets	$ 0	$ 0	$ 0