Vishay Intertechnology (VSH) 10-Q 4 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jul. 04, 2020	Jul. 31, 2020
Entity Listings [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jul. 4, 2020
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	2020
Document Fiscal Period Focus	Q2
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		132,560,749
Class B Convertible Common Stock [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		12,097,409

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Jul. 04, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 599,930	$ 694,133
Short-term investments	157,246	108,822
Accounts receivable, net	285,529	328,187
Inventories:
Finished goods	125,177	122,466
Work in process	196,846	187,354
Raw materials	127,165	121,860
Total inventories	449,188	431,680
Prepaid expenses and other current assets	131,125	141,294
Total current assets	1,623,018	1,704,116
Property and equipment, at cost:
Land	74,985	75,011
Buildings and improvements	596,942	585,064
Machinery and equipment	2,623,774	2,606,355
Construction in progress	99,932	110,722
Allowance for depreciation	(2,474,456)	(2,425,627)
Property and equipment, net	921,177	951,525
Right of use assets	103,153	93,162
Goodwill	150,641	150,642
Other intangible assets, net	58,583	60,659
Other assets	168,274	160,671
Total assets	3,024,846	3,120,775
Current liabilities:
Notes payable to banks	1	2
Trade accounts payable	148,727	173,915
Payroll and related expenses	126,302	122,100
Lease liabilities	21,443	20,217
Other accrued expenses	166,261	186,463
Income taxes	40,642	17,731
Total current liabilities	503,376	520,428
Long-term debt less current portion	438,494	499,147
U.S. transition tax payable	125,438	140,196
Deferred income taxes	4,231	22,021
Long-term lease liabilities	85,714	78,511
Other liabilities	98,134	100,207
Accrued pension and other postretirement costs	270,735	272,402
Total liabilities	1,526,122	1,632,912
Redeemable convertible debentures	0	174
Vishay stockholders' equity
Common stock	13,256	13,235
Class B convertible common stock	1,210	1,210
Capital in excess of par value	1,412,775	1,425,170
Retained earnings	95,462	72,180
Accumulated other comprehensive income (loss)	(26,326)	(26,646)
Total Vishay stockholders' equity	1,496,377	1,485,149
Noncontrolling interests	2,347	2,540
Total equity	1,498,724	1,487,689
Total liabilities, temporary equity, and equity	$ 3,024,846	$ 3,120,775

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 581,717	$ 685,240	$ 1,194,558	$ 1,430,399
Costs of products sold	451,047	510,639	916,648	1,044,639
Gross profit	130,670	174,601	277,910	385,760
Selling, general, and administrative expenses	89,127	95,112	188,959	198,536
Restructuring and severance costs	743	0	743	0
Operating income	40,800	79,489	88,208	187,224
Other income (expense):
Interest expense	(8,430)	(8,204)	(16,982)	(16,596)
Other	(1,484)	(397)	(1,286)	1,515
Loss on early extinguishment of debt	(1,146)	0	(4,066)	(1,307)
Total other income (expense)	(11,060)	(8,601)	(22,334)	(16,388)
Income before taxes	29,740	70,888	65,874	170,836
Income tax expense	4,845	26,153	13,595	50,460
Net earnings	24,895	44,735	52,279	120,376
Less: net earnings attributable to noncontrolling interests	242	258	407	440
Net earnings attributable to Vishay stockholders	$ 24,653	$ 44,477	$ 51,872	$ 119,936
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.17	$ 0.31	$ 0.36	$ 0.83
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.17	$ 0.31	$ 0.36	$ 0.83
Weighted average shares outstanding - basic (in shares)	144,846	144,621	144,818	144,589
Weighted average shares outstanding - diluted (in shares)	145,170	145,023	145,232	145,158
Cash dividends per share (in dollars per share)	$ 0.095	$ 0.095	$ 0.19	$ 0.18

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 24,895	$ 44,735	$ 52,279	$ 120,376
Other comprehensive income (loss), net of tax
Pension and other post-retirement actuarial items	1,760	1,623	3,361	3,080
Foreign currency translation adjustment	20,088	7,384	(3,041)	(2,605)
Other comprehensive income (loss)	21,848	9,007	320	475
Comprehensive income	46,743	53,742	52,599	120,851
Less: comprehensive income attributable to noncontrolling interests	242	258	407	440
Comprehensive income attributable to Vishay stockholders	$ 46,501	$ 53,484	$ 52,192	$ 120,411

Consolidated Condensed Statem_2

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019
Operating activities
Net earnings	$ 52,279	$ 120,376
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	82,158	81,346
(Gain) loss on disposal of property and equipment	(43)	(162)
Accretion of interest on convertible debt instruments	7,125	6,985
Inventory write-offs for obsolescence	11,587	12,643
Deferred income taxes	(4,370)	(5,601)
Loss on extinguishment of debt	4,066	1,307
Other	954	4,283
Change in U.S. transition tax liability	0	(14,757)
Change in repatriation tax liability	(16,258)	(20,479)
Net change in operating assets and liabilities, net of effects of businesses acquired	(12,589)	(50,122)
Net cash provided by operating activities	124,909	135,819
Investing activities
Capital expenditures	(48,832)	(70,148)
Proceeds from sale of property and equipment	230	464
Purchase of businesses, net of cash received	0	(11,862)
Purchase of short-term investments	(157,086)	(1,970)
Maturity of short-term investments	108,044	79,694
Other investing activities	(529)	2,893
Net cash provided by (used in) investing activities	(98,173)	(929)
Financing activities
Issuance costs	0	(5,394)
Repurchase of convertible debt instruments	(90,525)	(22,695)
Net proceeds (payments) on revolving credit lines	0	28,000
Net changes in short-term borrowings	(113)	22
Distributions to noncontrolling interests	(600)	(600)
Cash withholding taxes paid when shares withheld for vested equity awards	(2,016)	(2,708)
Net cash provided by (used in) financing activities	(120,738)	(29,375)
Effect of exchange rate changes on cash and cash equivalents	(201)	(641)
Net increase (decrease) in cash and cash equivalents	(94,203)	104,874
Cash and cash equivalents at beginning of period	694,133	686,032
Cash and cash equivalents at end of period	599,930	790,906
Common Stock [Member]
Financing activities
Dividends paid to common stockholders	(25,185)	(23,822)
Class B Convertible Common Stock [Member]
Financing activities
Dividends paid to common stockholders	$ (2,299)	$ (2,178)

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, 2018	$ 1,436,011		$ (61,258)		$ (6,791)		$ 1,382,384		$ 2,286		$ 1,384,670		$ 13,212		$ 1,210
Net earnings	0		75,459		0		75,459		182		75,641		0		0
Other comprehensive income	0		0		(8,532)		(8,532)		0		(8,532)		0		0
Conversion of Class B shares	0		0		0		0		0		0		0		0
Temporary equity reclassification	3		0		0		3		0		3		0		0
Issuance of stock and related tax withholdings for vested restricted stock units	(2,681)		0		0		(2,659)		0		(2,659)		22		0
Dividends declared			(12,292)		0		(12,277)		0		(12,277)		0		0
Dividends declared (APIC)	15
Stock compensation expense	3,536		0		0		3,536		0		3,536		0		0
Repurchase of convertible senior debentures	(11,783)		0		0		(11,783)		0		(11,783)		0		0
Balance at Period End at Mar. 30, 2019	1,425,101		24,922		(15,323)		1,449,144		2,468		1,451,612		13,234		1,210
Balance at Period Start at Dec. 31, 2018	1,436,011		(61,258)		(6,791)		1,382,384		2,286		1,384,670		13,212		1,210
Net earnings											120,376
Other comprehensive income											475
Balance at Period End at Jun. 29, 2019	1,426,164		55,659		(6,316)		1,489,952		2,126		1,492,078		13,235		1,210
Cumulative effect of accounting change for adoption of ASU | ASU 2016-02 [Member]		$ 0		$ 23,013		$ 0		$ 23,013		$ 0		$ 23,013		$ 0		$ 0
Balance at Period Start at Mar. 30, 2019	1,425,101		24,922		(15,323)		1,449,144		2,468		1,451,612		13,234		1,210
Net earnings	0		44,477		0		44,477		258		44,735		0		0
Other comprehensive income	0		0		9,007		9,007		0		9,007		0		0
Distributions to noncontrolling interests	0		0		0		0		(600)		(600)		0		0
Temporary equity reclassification	206		0		0		206		0		206		0		0
Issuance of stock and related tax withholdings for vested restricted stock units	(50)		0		0		(49)		0		(49)		1		0
Dividends declared			(13,740)		0		(13,723)		0		(13,723)		0		0
Dividends declared (APIC)	17
Stock compensation expense	890		0		0		890		0		890		0		0
Balance at Period End at Jun. 29, 2019	1,426,164		55,659		(6,316)		1,489,952		2,126		1,492,078		13,235		1,210
Cumulative effect of accounting change for adoption of ASU											72,180
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 senior debentures	(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											52,279
Other comprehensive income											320
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
Cumulative effect of accounting change for adoption of ASU | ASU 2016-13 [Member]		$ 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		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 senior debentures	(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
Cumulative effect of accounting change for adoption of ASU											$ 95,462

Consolidated Condensed Statem_4

Consolidated Condensed Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Jul. 04, 2020	Apr. 04, 2020	Jun. 29, 2019	Mar. 30, 2019
Consolidated Condensed Statements of Equity (Parenthetical) [Abstract]
Conversion of Class B shares (in shares)				18
Restricted stock issuances (in shares)	13,141	199,251	9,906	220,718
Dividends declared (in dollars per share)	$ 0.095	$ 0.095	$ 0.095	$ 0.085

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jul. 04, 2020
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, 2019. The results of operations for the fiscal quarter and six fiscal months ended July 4, 2020 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 2020 end on April 4, 2020, July 4, 2020, October 3, 2020, and December 31, 2020, respectively. The four fiscal quarters in 2019 ended on March 30, 2019, June 29, 2019, September 28, 2019, and December 31, 2019, respectively. Recently Adopted Accounting Guidance In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Payment terms for the Company's sales are generally less than ninety days. Substantially all of the Company's receivables are collected within twelve months of the transfer of products to the customer and the Company expects this to continue going forward. The credit loss allowance is determined through an analysis of the aging of accounts receivable and assessments of risk that are based on historical trends and an evaluation of the impact of current and projected economic conditions. Receivables from customers with deteriorating financial condition and those over 180 days past due are removed from the pool and evaluated separately. The adoption of ASU 2016-13 on January 1, 2020 had no material impact on the Company’s allowance for accounts receivable credit losses. The Company’s cash equivalents, short-term investments, and restricted investments are accounted for as held-to-maturity debt instruments, at amortized cost. Interest income on these instruments is recorded as “Other income” on the consolidated condensed statements of operations and interest receivable is recognized as a separate asset and recorded in “Prepaid expenses and other current assets” on the consolidated condensed balance sheets. The Company has not experienced a credit loss on the principal or interest receivable of its cash equivalents, short-term investments, or restricted investments. The Company pools its cash equivalents, short-term investments, and restricted investments by credit rating of the issuing financial institution and estimates an allowance for credit losses based on the corporate bond default ratios, evaluation of the impact of current and projected economic conditions, and probability of credit loss. The Company recorded a cumulative-effect adjustment of $810 to January 1, 2020 retained earnings to recognize an allowance for credit losses for these financial instruments upon the adoption of ASU 2016-13. The Company does not measure an allowance for credit losses on interest receivable. Any uncollectible interest receivable will be recognized by reversing interest income within the fiscal quarter that the interest becomes uncollectible. The Company has an immaterial amount of other short-term held-to-maturity debt instruments recorded within “Prepaid expenses and other current assets” on the consolidated condensed balance sheets. The Company analyzes these assets on a separate asset basis and estimates an allowance for credit losses based on historical credit loss rates and an evaluation of the impact of current and projected economic conditions. The Company recorded a cumulative-effect adjustment of $260 to January 1, 2020 retained earnings to recognize an allowance for credit losses for these financial instruments upon the adoption of ASU 2016-13. Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Impact of Coronavirus Outbreak

Impact of Coronavirus Outbreak	6 Months Ended
	Jul. 04, 2020
Impact of Coronavirus Outbreak [Abstract]
Impact of Coronavirus Outbreak	Note 2 – Impact of Coronavirus Outbreak The Company's operations have been impacted by the coronavirus ("COVID-19") outbreak. Some manufacturing facilities were temporarily closed and some are operating at levels less than full capacity. The Company has incurred incremental costs separable from normal operations that are directly related to the outbreak and containment efforts, primarily , which were partially offset by government subsidies. The net impact of the costs and subsidies are reported as cost of products sold ($ and $ ) and selling, general, and administrative benefits of ($ and $ ) based on employee function on the consolidated condensed statements of operations for the fiscal quarter and six fiscal months ended July 4, 2020, respectively. The Company's insurance coverages generally exclude losses incurred due to pandemics. Any amounts that may be received will not be recognized until all contingencies are settled.

Leases

Leases	6 Months Ended
	Jul. 04, 2020
Leases [Abstract]
Leases	Note 3 – Leases The Company leases buildings and machinery and equipment used for manufacturing and/or sales and administrative purposes. The Company is also party to various service, warehousing, and other agreements that it evaluates for potential embedded leases. The Company leases assets in each region in which it operates. No individual lease is considered significant and there are no leases that have not yet commenced that are considered significant. 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: July 4, 2020 December 31, 2019 Right of use assets Operating Leases Buildings and improvements $ 98,048 $ 87,689 Machinery and equipment 5,105 5,473 Total $ 103,153 $ 93,162 Current lease liabilities Operating Leases Buildings and improvements $ 18,716 $ 17,410 Machinery and equipment 2,727 2,807 Total $ 21,443 $ 20,217 Long-term lease liabilities Operating Leases Buildings and improvements $ 83,372 $ 75,877 Machinery and equipment 2,342 2,634 Total $ 85,714 $ 78,511 Total lease liabilities $ 107,157 $ 98,728 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Lease expense Operating lease expense $ 5,760 $ 5,627 $ 11,412 $ 11,163 Short-term lease expense 225 819 419 1,652 Variable lease expense 6 9 29 21 Total lease expense $ 5,991 $ 6,455 $ 11,860 $ 12,836 The Company paid $12,867 and $10,277 for its operating leases in the six fiscal months ended July 4, 2020 and June 29, 2019, 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 9.2 years and the weighted-average discount rate is 6.0% as of July 4, 2020. The undiscounted future lease payments for the Company's operating lease liabilities are as follows: July 4, 2020 2020 (excluding the six fiscal months ended July 4, 2020) $ 11,165 2021 20,498 2022 16,838 2023 14,370 2024 13,218 Thereafter 63,394 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	6 Months Ended
	Jul. 04, 2020
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities	Note 4 – Restructuring and Related Activities I The programs are primarily designed to reduce manufacturing fixed costs and selling, general, and administrative costs company-wide, and provide management rejuvenation. The Company has incurred charges totalling $24,882, primarily related to cash severance costs, to implement these programs. The Company expects these cost reductions to be fully achieved by December 2020. All participants in the program are now identified. 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 (6,465 ) Foreign currency translation (21 ) Balance at July 4, 2020 $ 17,101 The payment terms vary by country, but generally are paid in a lump sum at cessation of employment. The current portion of the liability is $13,401 and is included in other accrued expenses on the consolidated condensed balance sheet. The non-current portion of the liability is $3,700 and is included in other liabilities on the consolidated condensed balance sheet.

Income Taxes

Income Taxes	6 Months Ended
	Jul. 04, 2020
Income Taxes [Abstract]
Income Taxes	Note 5 – 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 July 4, 2020 and June 29, 2019 reflect the Company’s expected tax rate on reported income from continuing operations 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. During the second fiscal quarter of 2020, the Company repatriated $104,091 to the United States, and paid withholding and foreign taxes of $16,258. Substantially all of these amounts were used to repay certain indebtedness. The Company repurchased a portion of outstanding convertible notes and debentures in the fiscal quarter and six fiscal months ended July 4, 2020 (see Note 6). The Company recognized tax benefits on the pre-tax loss on early extinguishment of debt. The Company also recognized tax benefits of $1,346 in the six fiscal months ended July 4, 2020, reflecting the reduction in deferred tax liabilities related to the special tax attributes of the extinguished debentures. During the six fiscal months ended July 4, 2020, the liabilities for unrecognized tax benefits decreased by $3,397 on a net basis, primarily due to settlement of an audit and the expiration of a statute, partially offset by accruals for current year tax positions and interest.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jul. 04, 2020
Long-Term Debt [Abstract]
Long-Term Debt	Note 6 – Long-Term Debt Long-term debt consists of the following: July 4, 2020 December 31, 2019 Credit facility $ - $ - Convertible senior notes, due 2025 451,169 509,128 Convertible senior debentures, due 2040 128 126 Convertible senior debentures, due 2041 1,058 6,677 Deferred financing costs (13,861 ) (16,784 ) 438,494 499,147 Less current portion - - $ 438,494 $ 499,147 The following table summarizes some key facts and terms regarding the outstanding convertible debt instruments as of July 4, 2020: Convertible Senior Notes Due 2025 Convertible Senior Debentures Due 2040 Convertible Senior Debentures Due 2041 Issuance date June 12, 2018 November 9, 2010 May 13, 2011 Maturity date June 15, 2025 November 15, 2040 May 15, 2041 Principal amount as of July 4, 2020 $ 524,230 $ 300 $ 2,640 Cash coupon rate (per annum) 2.25 % 2.25 % 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 5.50 % 8.00 % 8.375 % Conversion rate effective June 11, 2020 (per $1 principal amount) 31.8470 80.9286 59.0575 Effective conversion price effective June 11, 2020 (per share) $ 31.40 $ 12.36 $ 16.93 130% of the conversion price (per share) $ 40.82 $ 16.07 $ 22.01 Call date n/a November 20, 2020 May 20, 2021 The terms of the convertible senior debentures due 2040 and due 2041 are generally congruent. Prior to three months before the maturity date, the holders may convert their convertible senior debentures due 2040 and due 2041 only under the following circumstances: (1) during any fiscal quarter after the first full quarter subsequent to issuance, if the sale price of Vishay common stock reaches 130% of the conversion price for a specified period; (2) the trading price of the debentures falls below 98% of the product of the sale price of Vishay's common stock and the conversion rate for a specified period; (3) Vishay calls any or all of the debentures for redemption, at any time prior to the close of business on the third scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. The convertible senior debentures due 2040 and due 2041 are not currently convertible. 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. The quarterly cash dividend program of the Company results in adjustments to the conversion rate and effective conversion price for the convertible debt instruments 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. GAAP requires an issuer to separately account for the liability and equity components of the instrument in a manner that reflects the issuer’s nonconvertible debt borrowing rate when interest costs are recognized in subsequent periods. The resulting discount on the debt is amortized as non-cash interest expense in future periods. The carrying values of the liability and equity components of the convertible debt instruments are reflected in the Company’s consolidated condensed balance sheets as follows: Principal amount of the debt instruments Unamortized discount Carrying value of liability component Equity component (including temporary equity) -net carrying value July 4, 2020 Convertible senior notes due 2025 $ 524,230 (73,061 ) $ 451,169 $ 74,495 Convertible senior debentures due 2040 and due 2041 $ 2,940 (1,754 ) $ 1,186 $ 1,216 Total $ 527,170 $ (74,815 ) $ 452,355 $ 75,711 December 31, 2019 Convertible senior notes due 2025 $ 600,000 (90,872 ) $ 509,128 $ 85,262 Convertible senior debentures due 2040 and due 2041 $ 17,190 (10,387 ) $ 6,803 $ 7,129 Total $ 617,190 $ (101,259 ) $ 515,931 $ 92,391 Interest is payable on the convertible debt instruments semi-annually at the cash coupon rate; however, the remaining debt discount is being 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. In addition to ordinary interest, contingent interest will accrue in certain circumstances relating to the trading price of the convertible senior debentures due 2040 and due 2041 and under certain other circumstances, beginning in 2020 and 2021, respectively. The convertible senior notes due 2025 do not possess contingent interest features. 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 July 4, 2020 Convertible senior notes due 2025 $ 3,266 3,479 435 $ 7,180 Convertible senior debentures $ 16 9 - $ 25 Total $ 3,282 $ 3,488 $ 435 $ 7,205 June 29, 2019 Convertible senior notes due 2025 $ 3,375 3,442 454 $ 7,271 Convertible senior debentures $ 119 53 (2 ) $ 170 Total $ 3,494 $ 3,495 $ 452 $ 7,441 Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the six 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 July 4, 2020 Convertible senior notes due 2025 $ 6,641 7,096 889 $ 14,626 Convertible senior debentures $ 60 29 - $ 89 Total $ 6,701 $ 7,125 $ 889 $ 14,715 June 29, 2019 Convertible senior notes due 2025 $ 6,750 6,868 908 $ 14,526 Convertible senior debentures $ 267 117 (18 ) $ 366 Total $ 7,017 $ 6,985 $ 890 $ 14,892 Other non-cash interest expense includes amortization of deferred financing costs and changes in the value of embedded derivative liabilities. The Company used cash to repurchase $75,770 principal amount of convertible senior notes due 2025 in the second fiscal quarter of 2020. The net carrying value of the debentures repurchased was $65,056. In accordance with the authoritative accounting guidance for convertible debt, the aggregate repurchase payment of $70,676 was allocated between the liability ($65,056) and equity ($5,620) components of the convertible notes, using the Company's nonconvertible debt borrowing rate at the time of the repurchase. As a result, the Company recognized a loss on extinguishment of convertible notes of $1,146, including the write-off of unamortized debt issuance costs in the second fiscal quarter of 2020. The Company used cash to repurchase $14,250 principal amount of convertible senior debentures due 2041 in the first fiscal quarter of 2020. The net carrying value of the debentures repurchased was $5,645. The aggregate repurchase payment of $19,849 was allocated between the liability ($8,452) and equity ($11,397) components of the convertible debentures, using the Company's nonconvertible debt borrowing rate at the time of the repurchase. As a result, the Company recognized a loss on extinguishment of convertible debentures of $2,920, including the write-off of unamortized debt issuance costs in the first fiscal quarter of 2020.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jul. 04, 2020
Revenue Recognition [Abstract]
Revenue Recognition	Note 7 – Revenue Recognition Sales returns and allowances accrual activity is shown below: Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Beginning balance $ 34,812 $ 37,577 $ 40,508 $ 42,663 Sales allowances 19,224 28,903 41,856 57,114 Credits issued (14,991 ) (22,270 ) (42,973 ) (55,332 ) Foreign currency 387 172 41 (63 ) Ending balance $ 39,432 $ 44,382 $ 39,432 $ 44,382

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jul. 04, 2020
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 8 – 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, 2020 $ (68,020 ) $ 41,374 $ (26,646 ) Other comprehensive income before reclassifications - (3,041 ) $ (3,041 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (3,041 ) $ (3,041 ) Amounts reclassified out of AOCI 4,442 - $ 4,442 Tax effect (1,081 ) - $ (1,081 ) Amounts reclassified out of AOCI, net of tax 3,361 - $ 3,361 Net other comprehensive income $ 3,361 $ (3,041 ) $ 320 Balance at July 4, 2020 $ (64,659 ) $ 38,333 $ (26,326 ) Reclassifications of pension and other post-retirement actuarial items out of AOCI are included in the computation of net periodic benefit cost. See Note 9 for further information.

Pensions and Other Postretireme

Pensions and Other Postretirement Benefits	6 Months Ended
	Jul. 04, 2020
Pensions and Other Postretirement Benefits [Abstract]
Pensions and Other Postretirement Benefits	Note 9 – 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 second fiscal quarters of 2020 and 2019 for the Company’s defined benefit pension plans: Fiscal quarter ended July 4, 2020 Fiscal quarter ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 1,071 $ - $ 845 Interest cost 341 919 424 1,281 Expected return on plan assets - (491 ) - (489 ) Amortization of prior service cost 36 30 36 50 Amortization of losses 297 1,588 118 1,344 Curtailment and settlement losses - 231 - 500 Net periodic benefit cost $ 674 $ 3,348 $ 578 $ 3,531 The following table shows the components of the net periodic pension cost for the six fiscal months ended July 4, 2020 and June 29, 2019 for the Company’s defined benefit pension plans: Six fiscal months ended July 4, 2020 Six fiscal months ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 2,145 $ - $ 1,697 Interest cost 683 1,843 848 2,572 Expected return on plan assets - (986 ) - (979 ) Amortization of prior service cost 72 60 72 101 Amortization of losses 595 3,180 236 2,703 Curtailment and settlement losses - 460 - 1,005 Net periodic benefit cost $ 1,350 $ 6,702 $ 1,156 $ 7,099 Other Postretirement Benefits The following table shows the components of the net periodic benefit cost for the second fiscal quarters of 2020 and 2019 for the Company’s other postretirement benefit plans: Fiscal quarter ended July 4, 2020 Fiscal quarter ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 28 $ 68 $ 35 $ 72 Interest cost 59 16 78 30 Amortization of losses (gains) 6 31 (32 ) 27 Net periodic benefit cost $ 93 $ 115 $ 81 $ 129 The following table shows the components of the net periodic pension cost for the six fiscal months ended July 4, 2020 and June 29, 2019 for the Company’s other postretirement benefit plans: Six fiscal months ended July 4, 2020 Six fiscal months ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 56 $ 137 $ 70 $ 144 Interest cost 118 31 155 60 Amortization of losses (gains) 13 62 (64 ) 54 Net periodic benefit cost $ 187 $ 230 $ 161 $ 258

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jul. 04, 2020
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 10 – 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Restricted stock units $ 875 $ 890 $ 3,658 4,249 Phantom stock units - - 215 177 Total $ 875 $ 890 $ 3,873 4,426 The Company recognizes compensation cost for RSUs that are expected to vest and records cumulative adjustments in the period that the expectation changes. The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at July 4, 2020 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 4,162 0.9 Phantom stock units - n/a Total $ 4,162 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. 2007 Stock Incentive Plan The Company’s 2007 Stock Incentive Program (the “2007 Program”), as amended and restated, permits the grant of up to 6,500,000 shares of restricted stock, unrestricted stock, RSUs, stock options, and phantom stock units, to officers, employees, and non-employee directors of the Company. Such instruments are available for grant until May 20, 2024. Restricted Stock Units RSU activity under the 2007 Program as of July 4, 2020 and changes during the six 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, 2020 842 $ 17.93 Granted 272 18.30 Vested* (308 ) 15.70 Cancelled or forfeited (13 ) 19.06 Outstanding at July 4, 2020 793 $ 18.90 Expected to vest at July 4, 2020 793 * 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, 2021 141 - 141 January 1, 2022 174 - 174 January 1, 2023 152 - 152 Phantom Stock Units The 2007 Program authorizes the grant of phantom stock units to the extent provided for in the Company’s employment agreements with certain executives. Each phantom stock unit entitles the recipient to receive a share of common stock at the individual’s termination of employment or any other future date specified in the applicable employment agreement. Phantom stock units participate in dividend distribution on the same basis as the Company's common stock and Class B common stock. Dividend equivalents are issued in the form of additional units of phantom stock. The phantom stock units are fully vested at all times. Phantom stock unit activity under the phantom stock plan as of July 4, 2020 and changes during the six 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, 2020 183 Granted 10 $ 21.49 Dividend equivalents issued 2 Outstanding at July 4, 2020 195

Segment Information

Segment Information	6 Months Ended
	Jul. 04, 2020
Segment Information [Abstract]
Segment Information	Note 11 – Segment Information Vishay is a global manufacturer and supplier of electronic components. Vishay operates, and its chief operating decision maker makes strategic and operating decisions with regards to assessing performance and allocating resources based on, six reporting segments: MOSFETs, Diodes, Optoelectronic Components, Resistors, Inductors, and Capacitors. These segments represent groupings of product lines based on their functionality: ● Metal oxide semiconductor field-effect transistors ("MOSFETs") function as solid-state switches to control power. ● Diodes route, regulate, and block radio frequency, analog, and power signals; protect systems from surges or electrostatic discharge damage; or provide electromagnetic interference filtering. ● Optoelectronic components emit light, detect light, or do both. ● Resistors are basic components used in all forms of electronic circuitry to adjust and regulate levels of voltage and current. ● Inductors use an internal magnetic field to change alternating current phase and resist alternating current. ● Capacitors store energy and discharge it when needed. The current six segment alignment reflects a change in reporting structure made during the fourth fiscal quarter of 2019. The fiscal periods ended June 29, 2019 have been recast to separately present Resistors and Inductors. Vishay's reporting segments generate substantially all of their revenue from product sales to the industrial, automotive, telecommunications, computing, consumer products, power supplies, military and aerospace, and medical end markets. A small portion of revenues is from royalties. The Company evaluates business segment performance on operating income, exclusive of certain items (“segment operating income”). Only dedicated, direct selling, general, and administrative expenses of the segments are included in the calculation of segment operating income. The Company’s calculation of segment operating income excludes such selling, general, and administrative costs as global operations, sales and marketing, information systems, finance and administration groups, as well as restructuring and severance costs, the direct impact of the COVID-19 outbreak, goodwill and long-lived asset impairment charges, and other items. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to intrinsic operating results of the Company. These items represent reconciling items between segment operating income and consolidated operating income. Business segment assets are the owned or allocated assets used by each business. The Company also regularly evaluates gross profit by segment to assist in the analysis of consolidated gross profit. The Company considers segment operating income to be the more important metric because it more fully captures the business operations of the segments. The following tables set forth business segment information: MOSFETs Diodes Optoelectronic Components Resistors Inductors Capacitors Corporate / Other* Total Fiscal quarter ended July 4, 2020 : Net revenues $ 118,944 $ 124,187 $ 49,130 $ 140,412 $ 65,185 $ 83,859 $ - $ 581,717 Gross profit $ 26,978 $ 24,904 $ 11,728 $ 32,513 $ 20,252 $ 15,218 $ (923 ) $ 130,670 Segment operating income $ 17,602 $ 19,814 $ 7,948 $ 27,879 $ 17,713 $ 10,524 $ (923 ) $ 100,557 Fiscal quarter ended June 29, 2019 : Net revenues $ 128,842 $ 142,042 $ 60,675 $ 165,359 $ 77,024 $ 111,298 $ - $ 685,240 Gross profit $ 31,933 $ 28,857 $ 16,231 $ 46,877 $ 24,538 $ 26,165 $ - $ 174,601 Segment operating income $ 22,541 $ 24,010 $ 12,022 $ 41,667 $ 21,776 $ 21,161 $ - $ 143,177 Six fiscal months ended July 4, 2020 : Net revenues $ 235,837 $ 239,530 $ 103,309 $ 299,620 $ 138,970 $ 177,292 $ - $ 1,194,558 Gross Profit $ 55,130 $ 44,422 $ 26,313 $ 77,286 $ 43,239 $ 35,573 $ (4,053 ) $ 277,910 Segment Operating Income $ 36,260 $ 34,236 $ 18,634 $ 66,764 $ 38,023 $ 25,594 $ (4,053 ) $ 215,458 Six fiscal months ended June 29, 2019 : Net revenues $ 266,183 $ 309,882 $ 121,237 $ 354,190 $ 148,664 $ 230,243 $ - $ 1,430,399 Gross Profit $ 67,992 $ 72,349 $ 32,248 $ 109,466 $ 47,818 $ 55,887 $ - $ 385,760 Segment Operating Income $ 49,219 $ 62,138 $ 23,732 $ 98,014 $ 42,416 $ 45,727 $ - $ 321,246 * Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Reconciliation: Segment Operating Income $ 100,557 $ 143,177 $ 215,458 $ 321,246 Restructuring and Severance Costs (743 ) - (743 ) - Impact of COVID-19 on Selling, General, and Administrative Expenses 747 - 430 - Unallocated Selling, General, and Administrative Expenses (59,761 ) (63,688 ) (126,937 ) (134,022 ) Consolidated Operating Income $ 40,800 $ 79,489 $ 88,208 $ 187,224 Unallocated Other Income (Expense) (11,060 ) (8,601 ) (22,334 ) (16,388 ) Consolidated Income Before Taxes $ 29,740 $ 70,888 $ 65,874 $ 170,836 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Distributors $ 349,562 $ 368,420 $ 655,008 $ 779,980 OEMs 190,799 269,026 451,928 551,662 EMS companies 41,356 47,794 87,622 98,757 Total Revenue $ 581,717 $ 685,240 $ 1,194,558 $ 1,430,399 Net revenues were attributable to customers in the following regions: Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Asia $ 260,625 $ 246,193 $ 477,709 $ 505,919 Europe 179,928 254,742 412,980 533,641 Americas 141,164 184,305 303,869 390,839 Total Revenue $ 581,717 $ 685,240 $ 1,194,558 $ 1,430,399 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Industrial $ 226,877 $ 250,783 $ 441,988 $ 532,373 Automotive 133,834 200,580 335,777 415,366 Telecommunications 33,496 44,562 63,188 97,842 Computing 55,719 48,244 100,942 95,752 Consumer Products 22,571 30,486 43,124 64,535 Power Supplies 32,176 29,474 57,370 59,601 Military and Aerospace 41,451 47,848 85,386 95,409 Medical 35,593 33,263 66,783 69,521 Total revenue $ 581,717 $ 685,240 1,194,558 1,430,399

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jul. 04, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Note 12 – 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Numerator: Net earnings attributable to Vishay stockholders $ 24,653 $ 44,477 $ 51,872 $ 119,936 Denominator: Denominator for basic earnings per share: Weighted average shares 144,651 144,441 144,624 144,409 Outstanding phantom stock units 195 180 194 180 Adjusted weighted average shares 144,846 144,621 144,818 144,589 Effect of dilutive securities: Convertible debt instruments 5 24 50 131 Restricted stock units 319 378 364 438 Dilutive potential common shares 324 402 414 569 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,170 145,023 145,232 145,158 Basic earnings per share attributable to Vishay stockholders $ 0.17 $ 0.31 $ 0.36 $ 0.83 Diluted earnings per share attributable to Vishay stockholders $ 0.17 $ 0.31 $ 0.36 $ 0.83 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Convertible debt instruments: Convertible Senior Notes, due 2025 18,321 19,055 18,704 19,053 Convertible Senior Debentures, due 2041 155 - 122 - Weighted average other 387 315 356 315 The Company’s convertible debt instruments are only convertible for specified periods upon the occurrence of certain events. The Company's convertible debt instruments are not currently convertible. In periods that the convertible debt instruments are not convertible, the certain conditions which could trigger conversion of the debt instruments have been deemed to be non-substantive, and accordingly, the Company assumes the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive. At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of any of the convertible debt instruments in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the convertible instruments are included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. Under the “treasury stock method,” Vishay calculates the number of shares issuable under the terms of the debentures based on the average market price of Vishay common stock during the period, and that number is included in the total diluted shares figure for the period. If the average market price is less than $12.36, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2040, if the average market price is less than $16.93, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2041, and if the average market price is less than $31.40, no shares are included in the diluted earnings per share computation for the convertible senior notes due 2025.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 04, 2020
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 13 – 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 July 4, 2020 Assets: Assets held in rabbi trusts $ 53,888 $ 36,822 $ 17,066 $ - Available for sale securities $ 4,401 4,401 - - $ 58,289 $ 41,223 $ 17,066 $ - December 31, 2019 Assets: Assets held in rabbi trusts $ 52,148 $ 34,280 17,868 $ - Available for sale securities $ 4,405 4,405 - - $ 56,553 $ 38,685 $ 17,868 $ - As described in Note 6, the Company allocated the aggregate repurchase payment of convertible senior debt instruments between the associated liability and equity components of the repurchased convertible senior debt instruments based on a nonrecurring fair value measurement of the convertible senior debt instruments immediately prior to the repurchase. The nonrecurring fair value measurement is considered a Level 3 measurement. See Note 6 for further information on the measurement and input. 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 equity 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 fair value of the long-term debt, excluding the derivative liabilities and deferred financing costs, at July 4, 2020 and December 31, 2019 is approximately $497,600 and $632,200, respectively, compared to its carrying value, excluding the derivative liabilities and deferred financing costs, of $452,355 and $515,931, 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 July 4, 2020 and December 31, 2019, 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 July 4, 2020 and December 31, 2019, 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, short-term notes payable, 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)	6 Months Ended
	Jul. 04, 2020
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 2020 end on April 4, 2020, July 4, 2020, October 3, 2020, and December 31, 2020, respectively. The four fiscal quarters in 2019 ended on March 30, 2019, June 29, 2019, September 28, 2019, and December 31, 2019, respectively.
Recently Adopted Accounting Guidance	Recently Adopted Accounting Guidance In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Payment terms for the Company's sales are generally less than ninety days. Substantially all of the Company's receivables are collected within twelve months of the transfer of products to the customer and the Company expects this to continue going forward. The credit loss allowance is determined through an analysis of the aging of accounts receivable and assessments of risk that are based on historical trends and an evaluation of the impact of current and projected economic conditions. Receivables from customers with deteriorating financial condition and those over 180 days past due are removed from the pool and evaluated separately. The adoption of ASU 2016-13 on January 1, 2020 had no material impact on the Company’s allowance for accounts receivable credit losses. The Company’s cash equivalents, short-term investments, and restricted investments are accounted for as held-to-maturity debt instruments, at amortized cost. Interest income on these instruments is recorded as “Other income” on the consolidated condensed statements of operations and interest receivable is recognized as a separate asset and recorded in “Prepaid expenses and other current assets” on the consolidated condensed balance sheets. The Company has not experienced a credit loss on the principal or interest receivable of its cash equivalents, short-term investments, or restricted investments. The Company pools its cash equivalents, short-term investments, and restricted investments by credit rating of the issuing financial institution and estimates an allowance for credit losses based on the corporate bond default ratios, evaluation of the impact of current and projected economic conditions, and probability of credit loss. The Company recorded a cumulative-effect adjustment of $810 to January 1, 2020 retained earnings to recognize an allowance for credit losses for these financial instruments upon the adoption of ASU 2016-13. The Company does not measure an allowance for credit losses on interest receivable. Any uncollectible interest receivable will be recognized by reversing interest income within the fiscal quarter that the interest becomes uncollectible. The Company has an immaterial amount of other short-term held-to-maturity debt instruments recorded within “Prepaid expenses and other current assets” on the consolidated condensed balance sheets. The Company analyzes these assets on a separate asset basis and estimates an allowance for credit losses based on historical credit loss rates and an evaluation of the impact of current and projected economic conditions. The Company recorded a cumulative-effect adjustment of $260 to January 1, 2020 retained earnings to recognize an allowance for credit losses for these financial instruments upon the adoption of ASU 2016-13.
Reclassifications	Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Leases (Policies)

Leases (Policies)	6 Months Ended
	Jul. 04, 2020
Leases [Abstract]
Leases	The Company leases buildings and machinery and equipment used for manufacturing and/or sales and administrative purposes. The Company is also party to various service, warehousing, and other agreements that it evaluates for potential embedded leases. The Company leases assets in each region in which it operates. No individual lease is considered significant and there are no leases that have not yet commenced that are considered significant.

Income Taxes (Policies)

Income Taxes (Policies)	6 Months Ended
	Jul. 04, 2020
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 July 4, 2020 and June 29, 2019 reflect the Company’s expected tax rate on reported income from continuing operations 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)	6 Months Ended
	Jul. 04, 2020
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.

Segment Information (Policies)

Segment Information (Policies)	6 Months Ended
	Jul. 04, 2020
Segment Information [Abstract]
Segment Reporting, Policy [Policy Text Block]	Vishay is a global manufacturer and supplier of electronic components. Vishay operates, and its chief operating decision maker makes strategic and operating decisions with regards to assessing performance and allocating resources based on, six reporting segments: MOSFETs, Diodes, Optoelectronic Components, Resistors, Inductors, and Capacitors. These segments represent groupings of product lines based on their functionality: ● Metal oxide semiconductor field-effect transistors ("MOSFETs") function as solid-state switches to control power. ● Diodes route, regulate, and block radio frequency, analog, and power signals; protect systems from surges or electrostatic discharge damage; or provide electromagnetic interference filtering. ● Optoelectronic components emit light, detect light, or do both. ● Resistors are basic components used in all forms of electronic circuitry to adjust and regulate levels of voltage and current. ● Inductors use an internal magnetic field to change alternating current phase and resist alternating current. ● Capacitors store energy and discharge it when needed. The current six segment alignment reflects a change in reporting structure made during the fourth fiscal quarter of 2019. The fiscal periods ended June 29, 2019 have been recast to separately present Resistors and Inductors. Vishay's reporting segments generate substantially all of their revenue from product sales to the industrial, automotive, telecommunications, computing, consumer products, power supplies, military and aerospace, and medical end markets. A small portion of revenues is from royalties. The Company evaluates business segment performance on operating income, exclusive of certain items (“segment operating income”). Only dedicated, direct selling, general, and administrative expenses of the segments are included in the calculation of segment operating income. The Company’s calculation of segment operating income excludes such selling, general, and administrative costs as global operations, sales and marketing, information systems, finance and administration groups, as well as restructuring and severance costs, the direct impact of the COVID-19 outbreak, goodwill and long-lived asset impairment charges, and other items. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to intrinsic operating results of the Company. These items represent reconciling items between segment operating income and consolidated operating income. Business segment assets are the owned or allocated assets used by each business. The Company also regularly evaluates gross profit by segment to assist in the analysis of consolidated gross profit. The Company considers segment operating income to be the more important metric because it more fully captures the business operations of the segments.

Earnings Per Share (Policies)

Earnings Per Share (Policies)	6 Months Ended
	Jul. 04, 2020
Earnings Per Share [Abstract]
Discussion on convertible debt included in computation of earnings per share diluted	The Company’s convertible debt instruments are only convertible for specified periods upon the occurrence of certain events. The Company's convertible debt instruments are not currently convertible. In periods that the convertible debt instruments are not convertible, the certain conditions which could trigger conversion of the debt instruments have been deemed to be non-substantive, and accordingly, the Company assumes the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive. At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of any of the convertible debt instruments in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the convertible instruments are included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. Under the “treasury stock method,” Vishay calculates the number of shares issuable under the terms of the debentures based on the average market price of Vishay common stock during the period, and that number is included in the total diluted shares figure for the period. If the average market price is less than $12.36, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2040, if the average market price is less than $16.93, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2041, and if the average market price is less than $31.40, no shares are included in the diluted earnings per share computation for the convertible senior notes due 2025.

Fair Value Measurements (Polici

Fair Value Measurements (Policies)	6 Months Ended
	Jul. 04, 2020
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)	6 Months Ended
	Jul. 04, 2020
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: July 4, 2020 December 31, 2019 Right of use assets Operating Leases Buildings and improvements $ 98,048 $ 87,689 Machinery and equipment 5,105 5,473 Total $ 103,153 $ 93,162 Current lease liabilities Operating Leases Buildings and improvements $ 18,716 $ 17,410 Machinery and equipment 2,727 2,807 Total $ 21,443 $ 20,217 Long-term lease liabilities Operating Leases Buildings and improvements $ 83,372 $ 75,877 Machinery and equipment 2,342 2,634 Total $ 85,714 $ 78,511 Total lease liabilities $ 107,157 $ 98,728
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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Lease expense Operating lease expense $ 5,760 $ 5,627 $ 11,412 $ 11,163 Short-term lease expense 225 819 419 1,652 Variable lease expense 6 9 29 21 Total lease expense $ 5,991 $ 6,455 $ 11,860 $ 12,836
Undiscounted Future Lease Payments for Operating Lease Liabilities	The undiscounted future lease payments for the Company's operating lease liabilities are as follows: July 4, 2020 2020 (excluding the six fiscal months ended July 4, 2020) $ 11,165 2021 20,498 2022 16,838 2023 14,370 2024 13,218 Thereafter 63,394

Restructuring and Related Act_2

Restructuring and Related Activities (Tables)	6 Months Ended
	Jul. 04, 2020
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 (6,465 ) Foreign currency translation (21 ) Balance at July 4, 2020 $ 17,101

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jul. 04, 2020
Long-Term Debt [Abstract]
Long-term Debt Instruments	Long-term debt consists of the following: July 4, 2020 December 31, 2019 Credit facility $ - $ - Convertible senior notes, due 2025 451,169 509,128 Convertible senior debentures, due 2040 128 126 Convertible senior debentures, due 2041 1,058 6,677 Deferred financing costs (13,861 ) (16,784 ) 438,494 499,147 Less current portion - - $ 438,494 $ 499,147
Key Facts and Terms of the Convertible Debt Instruments	The following table summarizes some key facts and terms regarding the outstanding convertible debt instruments as of July 4, 2020: Convertible Senior Notes Due 2025 Convertible Senior Debentures Due 2040 Convertible Senior Debentures Due 2041 Issuance date June 12, 2018 November 9, 2010 May 13, 2011 Maturity date June 15, 2025 November 15, 2040 May 15, 2041 Principal amount as of July 4, 2020 $ 524,230 $ 300 $ 2,640 Cash coupon rate (per annum) 2.25 % 2.25 % 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 5.50 % 8.00 % 8.375 % Conversion rate effective June 11, 2020 (per $1 principal amount) 31.8470 80.9286 59.0575 Effective conversion price effective June 11, 2020 (per share) $ 31.40 $ 12.36 $ 16.93 130% of the conversion price (per share) $ 40.82 $ 16.07 $ 22.01 Call date n/a November 20, 2020 May 20, 2021
Liability and Equity of Component of Convertible Debt Instruments	The carrying values of the liability and equity components of the convertible debt instruments are reflected in the Company’s consolidated condensed balance sheets as follows: Principal amount of the debt instruments Unamortized discount Carrying value of liability component Equity component (including temporary equity) -net carrying value July 4, 2020 Convertible senior notes due 2025 $ 524,230 (73,061 ) $ 451,169 $ 74,495 Convertible senior debentures due 2040 and due 2041 $ 2,940 (1,754 ) $ 1,186 $ 1,216 Total $ 527,170 $ (74,815 ) $ 452,355 $ 75,711 December 31, 2019 Convertible senior notes due 2025 $ 600,000 (90,872 ) $ 509,128 $ 85,262 Convertible senior debentures due 2040 and due 2041 $ 17,190 (10,387 ) $ 6,803 $ 7,129 Total $ 617,190 $ (101,259 ) $ 515,931 $ 92,391
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 July 4, 2020 Convertible senior notes due 2025 $ 3,266 3,479 435 $ 7,180 Convertible senior debentures $ 16 9 - $ 25 Total $ 3,282 $ 3,488 $ 435 $ 7,205 June 29, 2019 Convertible senior notes due 2025 $ 3,375 3,442 454 $ 7,271 Convertible senior debentures $ 119 53 (2 ) $ 170 Total $ 3,494 $ 3,495 $ 452 $ 7,441 Interest expense related to the convertible debt instruments is reflected on the consolidated condensed statements of operations for the six 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 July 4, 2020 Convertible senior notes due 2025 $ 6,641 7,096 889 $ 14,626 Convertible senior debentures $ 60 29 - $ 89 Total $ 6,701 $ 7,125 $ 889 $ 14,715 June 29, 2019 Convertible senior notes due 2025 $ 6,750 6,868 908 $ 14,526 Convertible senior debentures $ 267 117 (18 ) $ 366 Total $ 7,017 $ 6,985 $ 890 $ 14,892

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jul. 04, 2020
Revenue Recognition [Abstract]
Sales returns and allowances accrual activity	Sales returns and allowances accrual activity is shown below: Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Beginning balance $ 34,812 $ 37,577 $ 40,508 $ 42,663 Sales allowances 19,224 28,903 41,856 57,114 Credits issued (14,991 ) (22,270 ) (42,973 ) (55,332 ) Foreign currency 387 172 41 (63 ) Ending balance $ 39,432 $ 44,382 $ 39,432 $ 44,382

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jul. 04, 2020
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, 2020 $ (68,020 ) $ 41,374 $ (26,646 ) Other comprehensive income before reclassifications - (3,041 ) $ (3,041 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (3,041 ) $ (3,041 ) Amounts reclassified out of AOCI 4,442 - $ 4,442 Tax effect (1,081 ) - $ (1,081 ) Amounts reclassified out of AOCI, net of tax 3,361 - $ 3,361 Net other comprehensive income $ 3,361 $ (3,041 ) $ 320 Balance at July 4, 2020 $ (64,659 ) $ 38,333 $ (26,326 )

Pensions and Other Postretire_2

Pensions and Other Postretirement Benefits (Tables)	6 Months Ended
	Jul. 04, 2020
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 second fiscal quarters of 2020 and 2019 for the Company’s defined benefit pension plans: Fiscal quarter ended July 4, 2020 Fiscal quarter ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 1,071 $ - $ 845 Interest cost 341 919 424 1,281 Expected return on plan assets - (491 ) - (489 ) Amortization of prior service cost 36 30 36 50 Amortization of losses 297 1,588 118 1,344 Curtailment and settlement losses - 231 - 500 Net periodic benefit cost $ 674 $ 3,348 $ 578 $ 3,531 The following table shows the components of the net periodic pension cost for the six fiscal months ended July 4, 2020 and June 29, 2019 for the Company’s defined benefit pension plans: Six fiscal months ended July 4, 2020 Six fiscal months ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 2,145 $ - $ 1,697 Interest cost 683 1,843 848 2,572 Expected return on plan assets - (986 ) - (979 ) Amortization of prior service cost 72 60 72 101 Amortization of losses 595 3,180 236 2,703 Curtailment and settlement losses - 460 - 1,005 Net periodic benefit cost $ 1,350 $ 6,702 $ 1,156 $ 7,099
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 second fiscal quarters of 2020 and 2019 for the Company’s other postretirement benefit plans: Fiscal quarter ended July 4, 2020 Fiscal quarter ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 28 $ 68 $ 35 $ 72 Interest cost 59 16 78 30 Amortization of losses (gains) 6 31 (32 ) 27 Net periodic benefit cost $ 93 $ 115 $ 81 $ 129 The following table shows the components of the net periodic pension cost for the six fiscal months ended July 4, 2020 and June 29, 2019 for the Company’s other postretirement benefit plans: Six fiscal months ended July 4, 2020 Six fiscal months ended June 29, 2019 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 56 $ 137 $ 70 $ 144 Interest cost 118 31 155 60 Amortization of losses (gains) 13 62 (64 ) 54 Net periodic benefit cost $ 187 $ 230 $ 161 $ 258

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jul. 04, 2020
Stock-Based Compensation [Abstract]
Summary of Recognized Stock-based Compensation Expense	The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Restricted stock units $ 875 $ 890 $ 3,658 4,249 Phantom stock units - - 215 177 Total $ 875 $ 890 $ 3,873 4,426
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 July 4, 2020 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 4,162 0.9 Phantom stock units - n/a Total $ 4,162
RSU Activity	RSU activity under the 2007 Program as of July 4, 2020 and changes during the six 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, 2020 842 $ 17.93 Granted 272 18.30 Vested* (308 ) 15.70 Cancelled or forfeited (13 ) 19.06 Outstanding at July 4, 2020 793 $ 18.90 Expected to vest at July 4, 2020 793 * 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, 2021 141 - 141 January 1, 2022 174 - 174 January 1, 2023 152 - 152
Phantom Stock Unit Activity Under the Phantom Stock Plan	Phantom stock unit activity under the phantom stock plan as of July 4, 2020 and changes during the six 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, 2020 183 Granted 10 $ 21.49 Dividend equivalents issued 2 Outstanding at July 4, 2020 195

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jul. 04, 2020
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 July 4, 2020 : Net revenues $ 118,944 $ 124,187 $ 49,130 $ 140,412 $ 65,185 $ 83,859 $ - $ 581,717 Gross profit $ 26,978 $ 24,904 $ 11,728 $ 32,513 $ 20,252 $ 15,218 $ (923 ) $ 130,670 Segment operating income $ 17,602 $ 19,814 $ 7,948 $ 27,879 $ 17,713 $ 10,524 $ (923 ) $ 100,557 Fiscal quarter ended June 29, 2019 : Net revenues $ 128,842 $ 142,042 $ 60,675 $ 165,359 $ 77,024 $ 111,298 $ - $ 685,240 Gross profit $ 31,933 $ 28,857 $ 16,231 $ 46,877 $ 24,538 $ 26,165 $ - $ 174,601 Segment operating income $ 22,541 $ 24,010 $ 12,022 $ 41,667 $ 21,776 $ 21,161 $ - $ 143,177 Six fiscal months ended July 4, 2020 : Net revenues $ 235,837 $ 239,530 $ 103,309 $ 299,620 $ 138,970 $ 177,292 $ - $ 1,194,558 Gross Profit $ 55,130 $ 44,422 $ 26,313 $ 77,286 $ 43,239 $ 35,573 $ (4,053 ) $ 277,910 Segment Operating Income $ 36,260 $ 34,236 $ 18,634 $ 66,764 $ 38,023 $ 25,594 $ (4,053 ) $ 215,458 Six fiscal months ended June 29, 2019 : Net revenues $ 266,183 $ 309,882 $ 121,237 $ 354,190 $ 148,664 $ 230,243 $ - $ 1,430,399 Gross Profit $ 67,992 $ 72,349 $ 32,248 $ 109,466 $ 47,818 $ 55,887 $ - $ 385,760 Segment Operating Income $ 49,219 $ 62,138 $ 23,732 $ 98,014 $ 42,416 $ 45,727 $ - $ 321,246 *
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Reconciliation: Segment Operating Income $ 100,557 $ 143,177 $ 215,458 $ 321,246 Restructuring and Severance Costs (743 ) - (743 ) - Impact of COVID-19 on Selling, General, and Administrative Expenses 747 - 430 - Unallocated Selling, General, and Administrative Expenses (59,761 ) (63,688 ) (126,937 ) (134,022 ) Consolidated Operating Income $ 40,800 $ 79,489 $ 88,208 $ 187,224 Unallocated Other Income (Expense) (11,060 ) (8,601 ) (22,334 ) (16,388 ) Consolidated Income Before Taxes $ 29,740 $ 70,888 $ 65,874 $ 170,836
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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Distributors $ 349,562 $ 368,420 $ 655,008 $ 779,980 OEMs 190,799 269,026 451,928 551,662 EMS companies 41,356 47,794 87,622 98,757 Total Revenue $ 581,717 $ 685,240 $ 1,194,558 $ 1,430,399 Net revenues were attributable to customers in the following regions: Fiscal quarters ended Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Asia $ 260,625 $ 246,193 $ 477,709 $ 505,919 Europe 179,928 254,742 412,980 533,641 Americas 141,164 184,305 303,869 390,839 Total Revenue $ 581,717 $ 685,240 $ 1,194,558 $ 1,430,399 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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Industrial $ 226,877 $ 250,783 $ 441,988 $ 532,373 Automotive 133,834 200,580 335,777 415,366 Telecommunications 33,496 44,562 63,188 97,842 Computing 55,719 48,244 100,942 95,752 Consumer Products 22,571 30,486 43,124 64,535 Power Supplies 32,176 29,474 57,370 59,601 Military and Aerospace 41,451 47,848 85,386 95,409 Medical 35,593 33,263 66,783 69,521 Total revenue $ 581,717 $ 685,240 1,194,558 1,430,399

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jul. 04, 2020
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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Numerator: Net earnings attributable to Vishay stockholders $ 24,653 $ 44,477 $ 51,872 $ 119,936 Denominator: Denominator for basic earnings per share: Weighted average shares 144,651 144,441 144,624 144,409 Outstanding phantom stock units 195 180 194 180 Adjusted weighted average shares 144,846 144,621 144,818 144,589 Effect of dilutive securities: Convertible debt instruments 5 24 50 131 Restricted stock units 319 378 364 438 Dilutive potential common shares 324 402 414 569 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,170 145,023 145,232 145,158 Basic earnings per share attributable to Vishay stockholders $ 0.17 $ 0.31 $ 0.36 $ 0.83 Diluted earnings per share attributable to Vishay stockholders $ 0.17 $ 0.31 $ 0.36 $ 0.83
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 Six fiscal months ended July 4, 2020 June 29, 2019 July 4, 2020 June 29, 2019 Convertible debt instruments: Convertible Senior Notes, due 2025 18,321 19,055 18,704 19,053 Convertible Senior Debentures, due 2041 155 - 122 - Weighted average other 387 315 356 315

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 04, 2020
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 July 4, 2020 Assets: Assets held in rabbi trusts $ 53,888 $ 36,822 $ 17,066 $ - Available for sale securities $ 4,401 4,401 - - $ 58,289 $ 41,223 $ 17,066 $ - December 31, 2019 Assets: Assets held in rabbi trusts $ 52,148 $ 34,280 17,868 $ - Available for sale securities $ 4,405 4,405 - - $ 56,553 $ 38,685 $ 17,868 $ -

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	Jul. 04, 2020	Apr. 04, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change for adoption of ASU	$ 95,462		$ 72,180
ASU 2016-13 [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		$ (1,070)
Prepaid Expenses and Other Current Assets [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			260
Accounts Receivable [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			0
Cash equivalents, Short-term Investments, and Restricted Cash [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			$ 810

Impact of Coronavirus Outbreak

Impact of Coronavirus Outbreak (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 04, 2020	Jul. 04, 2020
Impact of Coronavirus Outbreak [Abstract]
COVID-19 Impact on COGS	$ 923	$ 4,053
COVID-19 Impact on SGA	$ (747)	$ (430)

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019	Dec. 31, 2019
Assets and Liabilities [Abstract]
Right of use assets	$ 103,153		$ 103,153		$ 93,162
Current lease liabilities	21,443		21,443		20,217
Long-term lease liabilities	85,714		85,714		78,511
Total lease liabilities	107,157		107,157		98,728
Lease expense [Abstract]
Operating lease expense	5,760	$ 5,627	11,412	$ 11,163
Short-term lease expense	225	819	419	1,652
Variable lease expense	6	9	29	21
Total lease expense	$ 5,991	$ 6,455	11,860	12,836
Cash paid for operating leases			$ 12,867	$ 10,277
Weighted-average remaining lease term - operating leases	9 years 2 months 12 days		9 years 2 months 12 days
Weighted-average discount rate - operating leases	6.00%		6.00%
Undiscounted future lease payments for operating lease liabilities [Abstract]
2020	$ 11,165		$ 11,165
2021	20,498		20,498
2022	16,838		16,838
2023	14,370		14,370
2024	13,218		13,218
Thereafter	63,394		63,394
Building and Improvements [Member]
Assets and Liabilities [Abstract]
Right of use assets	98,048		98,048		87,689
Current lease liabilities	18,716		18,716		17,410
Long-term lease liabilities	83,372		83,372		75,877
Machinery and Equipment [Member]
Assets and Liabilities [Abstract]
Right of use assets	5,105		5,105		5,473
Current lease liabilities	2,727		2,727		2,807
Long-term lease liabilities	$ 2,342		$ 2,342		$ 2,634

Restructuring and Related Act_3

Restructuring and Related Activities (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 04, 2020	Dec. 31, 2019	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	$ 743		$ 0	$ 743	$ 0
2019 Global Cost Reduction and Management Rejuvenation Programs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	13,401			13,401
Restructuring reserve, noncurrent	3,700			3,700
Restructuring Reserve [Roll Forward]
Restructuring and severance costs		$ 24,139		743
Cash paid		(1,330)		(6,465)
Foreign currency translation		35		(21)
Balance at end of period	17,101	$ 22,844		17,101
Expected restructuring costs	$ 24,882			$ 24,882

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 04, 2020	Jul. 04, 2020
Income Taxes [Abstract]
Decrease in liabilities for unrecognized tax benefits		$ 3,397
Income Tax Uncertainties [Abstract]
Cash repatriated during the current period	$ 104,091
Repatriation taxes paid	$ 16,258
Remeasurement of Deferred Tax Liability Debt Extinguishment [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred other tax expense (benefit)		$ 1,346

Long-Term Debt (Details)

Long-Term Debt (Details) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended
	Jul. 04, 2020USD ($)$ / shares	Apr. 04, 2020USD ($)	Jun. 29, 2019USD ($)	Jul. 04, 2020USD ($)$ / shares	Jun. 29, 2019USD ($)	Dec. 31, 2019USD ($)
Debt Instruments [Abstract]
Credit facility	$ 0			$ 0		$ 0
Deferred financing costs	(13,861)			(13,861)		(16,784)
Long-term debt	438,494			438,494		499,147
Less current portion	0			0		0
Long-term debt, less current portion	438,494			438,494		499,147
Interest expense [Abstract]
Contractual coupon interest	3,282		$ 3,494	6,701	$ 7,017
Non-cash amortization of debt discount	3,488		3,495	7,125	6,985
Other non-cash interest expense (income)	435		452	889	890
Total interest expense related to the debentures	7,205		7,441	14,715	14,892
Purchase price of extinguished debt		$ 19,849
Allocated liability component of repurchased debt		8,452
Allocated equity component of repurchased debt		11,397
Loss on extinguishment of debt, including the write-off of portion of unamortized debt issuance costs	(1,146)	(2,920)	0	(4,066)	(1,307)
Convertible Senior Notes, Due 2025 [Member]
Debt Instruments [Abstract]
Convertible debt	$ 451,169			$ 451,169		509,128
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				31.8470
Effective conversion price (in dollars per share) | $ / shares	$ 31.40			$ 31.40
130% of the conversion price (in dollars per share) | $ / shares				$ 40.82
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	$ 524,230			$ 524,230
Interest expense [Abstract]
Contractual coupon interest	3,266		3,375	6,641	6,750
Non-cash amortization of debt discount	3,479		3,442	7,096	6,868
Other non-cash interest expense (income)	435		454	889	908
Total interest expense related to the debentures	7,180		7,271	14,626	14,526
Principal amount of repurchased debt	75,770			75,770
Net carrying value of repurchased debt	65,056			65,056
Purchase price of extinguished debt	70,676			70,676
Allocated liability component of repurchased debt	65,056			65,056
Allocated equity component of repurchased debt	5,620			5,620
Loss on extinguishment of debt, including the write-off of portion of unamortized debt issuance costs	1,146
Convertible Senior Debentures, Due 2040 [Member]
Debt Instruments [Abstract]
Convertible debt	$ 128			$ 128		126
Issuance date				Nov. 9, 2010
Debt maturity date				Nov. 15, 2040
Cash coupon rate	2.25%			2.25%
Nonconvertible debt borrowing rate at issuance	8.00%			8.00%
Effective conversion rate				80.9286
Effective conversion price (in dollars per share) | $ / shares	$ 12.36			$ 12.36
130% of the conversion price (in dollars per share) | $ / shares				$ 16.07
Convertible senior debentures call date				Nov. 20, 2020
Conversion period before maturity date				3 months
Debt instrument percentage of conversion price				130.00%
Debt instrument percentage of sales price of common stock	98.00%			98.00%
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	$ 300			$ 300
Convertible Senior Debentures, Due 2041 [Member]
Debt Instruments [Abstract]
Convertible debt	$ 1,058			$ 1,058		6,677
Issuance date				May 13, 2011
Debt maturity date				May 15, 2041
Cash coupon rate	2.25%			2.25%
Nonconvertible debt borrowing rate at issuance	8.375%			8.375%
Effective conversion rate				59.0575
Effective conversion price (in dollars per share) | $ / shares	$ 16.93			$ 16.93
130% of the conversion price (in dollars per share) | $ / shares				$ 22.01
Convertible senior debentures call date				May 20, 2021
Conversion period before maturity date				3 months
Debt instrument percentage of conversion price				130.00%
Debt instrument percentage of sales price of common stock	98.00%			98.00%
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	$ 2,640			$ 2,640
Interest expense [Abstract]
Principal amount of repurchased debt		14,250
Net carrying value of repurchased debt		$ 5,645
Convertible Senior Debentures [Member]
Interest expense [Abstract]
Contractual coupon interest	16		119	60	267
Non-cash amortization of debt discount	9		53	29	117
Other non-cash interest expense (income)	0		(2)	0	(18)
Total interest expense related to the debentures	25		$ 170	89	$ 366
Convertible Debt [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	527,170			527,170		617,190
Unamortized discount	(74,815)			(74,815)		(101,259)
Carrying value of liability component	452,355			452,355		515,931
Equity component - net carrying value	75,711			75,711		92,391
Convertible Debt [Member] | Convertible Senior Notes, Due 2025 [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	524,230			524,230		600,000
Unamortized discount	(73,061)			(73,061)		(90,872)
Carrying value of liability component	451,169			451,169		509,128
Equity component - net carrying value	74,495			74,495		85,262
Convertible Debt [Member] | Convertible Senior Debentures [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	2,940			2,940		17,190
Unamortized discount	(1,754)			(1,754)		(10,387)
Carrying value of liability component	1,186			1,186		6,803
Equity component - net carrying value	$ 1,216			$ 1,216		$ 7,129

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Sales returns and allowances accrual activity [Roll Forward]
Beginning balance	$ 34,812	$ 37,577	$ 40,508	$ 42,663
Sales allowances	19,224	28,903	41,856	57,114
Credits issued	(14,991)	(22,270)	(42,973)	(55,332)
Foreign currency	387	172	41	(63)
Ending balance	$ 39,432	$ 44,382	$ 39,432	$ 44,382

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 04, 2020	Apr. 04, 2020	Jun. 29, 2019	Mar. 30, 2019	Jul. 04, 2020	Jun. 29, 2019
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance		$ (26,646)			$ (26,646)
Other comprehensive income before reclassifications					(3,041)
Tax effect					0
Other comprehensive income before reclassifications, net of tax					(3,041)
Amounts reclassified out of AOCI					4,442
Tax effect					(1,081)
Amounts reclassified out of AOCI, net of tax					3,361
Net other comprehensive income	$ 21,848	(21,528)	$ 9,007	$ (8,532)	320	$ 475
Ending Balance	(26,326)				(26,326)
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		(68,020)			(68,020)
Other comprehensive income before reclassifications					0
Tax effect					0
Other comprehensive income before reclassifications, net of tax					0
Amounts reclassified out of AOCI					4,442
Tax effect					(1,081)
Amounts reclassified out of AOCI, net of tax					3,361
Net other comprehensive income					3,361
Ending Balance	(64,659)				(64,659)
Currency Translation Adjustment [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance		41,374			41,374
Other comprehensive income before reclassifications					(3,041)
Tax effect					0
Other comprehensive income before reclassifications, net of tax					(3,041)
Amounts reclassified out of AOCI					0
Tax effect					0
Amounts reclassified out of AOCI, net of tax					0
Net other comprehensive income					(3,041)
Ending Balance	38,333				38,333
Accumulated Other Comprehensive Income (Loss) [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance		(26,646)			(26,646)
Net other comprehensive income	21,848	$ (21,528)	$ 9,007	$ (8,532)
Ending Balance	$ (26,326)				$ (26,326)

Pensions and Other Postretire_3

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
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	341	424	683	848
Expected return on plan assets	0	0	0	0
Amortization of prior service cost (credit)	36	36	72	72
Amortization of losses (gains)	297	118	595	236
Curtailment and settlement losses	0	0	0	0
Net periodic benefit cost	674	578	1,350	1,156
Defined Benefit Pension Plans [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	1,071	845	2,145	1,697
Interest cost	919	1,281	1,843	2,572
Expected return on plan assets	(491)	(489)	(986)	(979)
Amortization of prior service cost (credit)	30	50	60	101
Amortization of losses (gains)	1,588	1,344	3,180	2,703
Curtailment and settlement losses	231	500	460	1,005
Net periodic benefit cost	3,348	3,531	6,702	7,099
Other Postretirement Benefits [Member] | U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	28	35	56	70
Interest cost	59	78	118	155
Amortization of losses (gains)	6	(32)	13	(64)
Net periodic benefit cost	93	81	187	161
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	68	72	137	144
Interest cost	16	30	31	60
Amortization of losses (gains)	31	27	62	54
Net periodic benefit cost	$ 115	$ 129	$ 230	$ 258

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		$ 875	$ 890	$ 3,873	$ 4,426
Unrecognized Compensation Cost		$ 4,162		$ 4,162
Expiration date of the 2007 stock incentive plan				May 20, 2024
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)		6,500,000		6,500,000
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		$ 875	890	$ 3,658	4,249
Unrecognized Compensation Cost		$ 4,162		$ 4,162
Weighted Average Remaining Amortization Periods				10 months 24 days
Number of units [Abstract]
Outstanding (in shares)				842,000
Granted (in shares)				272,000
Vested (in shares)	[1]			(308,000)
Cancelled or forfeited (in shares)				(13,000)
Outstanding (in shares)		793,000		793,000
Expected to vest (in shares)		793,000		793,000
Weighted Average Grant-date Fair Value per Unit [Abstract]
Outstanding (in dollars per share)				$ 17.93
Granted (in dollars per share)				18.30
Vested (in dollars per share)	[1]			15.70
Cancelled or forfeited (in dollars per share)				19.06
Outstanding (in dollars per share)		$ 18.90		$ 18.90
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense recognized		$ 0	$ 0	$ 215	$ 177
Unrecognized Compensation Cost		$ 0		$ 0
Number of units [Abstract]
Outstanding (in shares)				183,000
Granted (in shares)				10,000
Dividend equivalents issued (in shares)				2,000
Outstanding (in shares)		195,000		195,000
Weighted Average Grant-date Fair Value per Unit [Abstract]
Granted (in dollars per share)				$ 21.49
Scheduled to Vest January 1, 2021 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		141,000		141,000
Expected to vest (in shares)		141,000		141,000
Not expected to vest (in shares)		0		0
Scheduled to Vest January 1, 2022 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		174,000		174,000
Expected to vest (in shares)		174,000		174,000
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)		152,000		152,000
Expected to vest (in shares)		152,000		152,000
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) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020USD ($)	Jun. 29, 2019USD ($)	Jul. 04, 2020USD ($)Segment	Jun. 29, 2019USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment			6
Net revenues	$ 581,717	$ 685,240	$ 1,194,558	$ 1,430,399
Gross profit	130,670	174,601	277,910	385,760
Restructuring and severance Costs	(743)	0	(743)	0
Unallocated Selling, General, and Administrative Expenses	(89,127)	(95,112)	(188,959)	(198,536)
Operating income	40,800	79,489	88,208	187,224
Unallocated Other Income (Expense)	(11,060)	(8,601)	(22,334)	(16,388)
Consolidated Income Before Taxes	29,740	70,888	65,874	170,836
Distributors [Member]
Segment Reporting Information [Line Items]
Net revenues	349,562	368,420	655,008	779,980
OEMs [Member]
Segment Reporting Information [Line Items]
Net revenues	190,799	269,026	451,928	551,662
EMS Companies [Member]
Segment Reporting Information [Line Items]
Net revenues	41,356	47,794	87,622	98,757
Industrial [Member]
Segment Reporting Information [Line Items]
Net revenues	226,877	250,783	441,988	532,373
Automotive [Member]
Segment Reporting Information [Line Items]
Net revenues	133,834	200,580	335,777	415,366
Telecommunications [Member]
Segment Reporting Information [Line Items]
Net revenues	33,496	44,562	63,188	97,842
Computing [Member]
Segment Reporting Information [Line Items]
Net revenues	55,719	48,244	100,942	95,752
Consumer Products [Member]
Segment Reporting Information [Line Items]
Net revenues	22,571	30,486	43,124	64,535
Power Supplies [Member]
Segment Reporting Information [Line Items]
Net revenues	32,176	29,474	57,370	59,601
Military and Aerospace [Member]
Segment Reporting Information [Line Items]
Net revenues	41,451	47,848	85,386	95,409
Medical [Member]
Segment Reporting Information [Line Items]
Net revenues	35,593	33,263	66,783	69,521
Asia [Member]
Segment Reporting Information [Line Items]
Net revenues	260,625	246,193	477,709	505,919
Europe [Member]
Segment Reporting Information [Line Items]
Net revenues	179,928	254,742	412,980	533,641
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	141,164	184,305	303,869	390,839
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net revenues			1,194,558	1,430,399
Gross profit			277,910	385,760
Operating income	100,557	143,177	215,458	321,246
Operating Segments [Member] | MOSFETS [Member]
Segment Reporting Information [Line Items]
Net revenues	118,944	128,842	235,837	266,183
Gross profit	26,978	31,933	55,130	67,992
Operating income	17,602	22,541	36,260	49,219
Operating Segments [Member] | Diodes [Member]
Segment Reporting Information [Line Items]
Net revenues	124,187	142,042	239,530	309,882
Gross profit	24,904	28,857	44,422	72,349
Operating income	19,814	24,010	34,236	62,138
Operating Segments [Member] | Optoelectronic Components [Member]
Segment Reporting Information [Line Items]
Net revenues	49,130	60,675	103,309	121,237
Gross profit	11,728	16,231	26,313	32,248
Operating income	7,948	12,022	18,634	23,732
Operating Segments [Member] | Resistors [Member]
Segment Reporting Information [Line Items]
Net revenues	140,412	165,359	299,620	354,190
Gross profit	32,513	46,877	77,286	109,466
Operating income	27,879	41,667	66,764	98,014
Operating Segments [Member] | Inductors [Member]
Segment Reporting Information [Line Items]
Net revenues	65,185	77,024	138,970	148,664
Gross profit	20,252	24,538	43,239	47,818
Operating income	17,713	21,776	38,023	42,416
Operating Segments [Member] | Capacitors [Member]
Segment Reporting Information [Line Items]
Net revenues	83,859	111,298	177,292	230,243
Gross profit	15,218	26,165	35,573	55,887
Operating income	10,524	21,161	25,594	45,727
Operating Segments [Member] | Corporate Other [Member]
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
Gross profit	(923)	0	(4,053)	0
Operating income	(923)	0	(4,053)	0
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Restructuring and severance Costs	(743)	0	(743)	0
Impact of coronavirus outbreak	747	0	430	0
Unallocated Selling, General, and Administrative Expenses	(59,761)	(63,688)	(126,937)	(134,022)
Unallocated Other Income (Expense)	$ (11,060)	$ (8,601)	$ (22,334)	$ (16,388)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2020	Jun. 29, 2019	Jul. 04, 2020	Jun. 29, 2019
Numerator [Abstract]
Net earnings attributable to Vishay stockholders	$ 24,653	$ 44,477	$ 51,872	$ 119,936
Denominator [Abstract]
Weighted average shares (in shares)	144,651	144,441	144,624	144,409
Outstanding phantom stock units (in shares)	195	180	194	180
Adjusted weighted average shares - basic (in shares)	144,846	144,621	144,818	144,589
Effect of dilutive securities [Abstract]
Convertible and exchangeable debt instruments (in shares)	5	24	50	131
Restricted stock units (in shares)	319	378	364	438
Dilutive potential common shares (in shares)	324	402	414	569
Denominator for diluted earnings per share [Abstract]
Adjusted weighted average shares - diluted (in shares)	145,170	145,023	145,232	145,158
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.17	$ 0.31	$ 0.36	$ 0.83
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.17	$ 0.31	$ 0.36	$ 0.83
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)	18,321	19,055	18,704	19,053
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)	$ 31.40		$ 31.40
Convertible Senior Debentures, Due 2040 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)	$ 12.36		$ 12.36
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)	155	0	122	0
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)	$ 16.93		$ 16.93
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)	387	315	356	315

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 04, 2020	Jul. 04, 2020	Dec. 31, 2019
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	497,600	497,600	632,200
Carrying value of long-term debt, excluding derivative liabilities	452,355	452,355	515,931
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	53,888	53,888	52,148
Available for sale securities	4,401	4,401	4,405
Fair value assets	58,289	58,289	56,553
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	36,822	36,822	34,280
Available for sale securities	4,401	4,401	4,405
Fair value assets	41,223	41,223	38,685
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	17,066	17,066	17,868
Available for sale securities	0	0	0
Fair value assets	17,066	17,066	17,868
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