Vishay Intertechnology (VSH) 10-Q 9 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 30, 2019	May 07, 2019
Entity Information [Line Items]
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	0000103730
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		132,338,451
Class B Convertible Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		12,097,409

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 749,426	$ 686,032
Short-term investments	8,411	78,286
Accounts receivable, net	391,960	397,020
Inventories:
Finished goods	137,317	138,112
Work in process	194,617	190,982
Raw materials	148,293	150,566
Total inventories	480,227	479,660
Prepaid expenses and other current assets	141,555	142,888
Total current assets	1,771,579	1,783,886
Property and equipment, at cost:
Land	74,499	87,622
Buildings and improvements	569,395	619,445
Machinery and equipment	2,525,394	2,510,001
Construction in progress	119,470	125,109
Allowance for depreciation	(2,339,944)	(2,373,176)
Property and equipment, net	948,814	969,001
Right of use assets	96,281	0
Goodwill	150,628	147,480
Other intangible assets, net	67,524	65,688
Other assets	146,224	140,143
Total assets	3,181,050	3,106,198
Current liabilities:
Notes payable to banks	18	18
Trade accounts payable	192,221	218,322
Payroll and related expenses	135,821	141,670
Lease liabilities	14,760	0
Other accrued expenses	160,756	229,660
Income taxes	70,653	54,436
Total current liabilities	574,229	644,106
Long-term debt less current portion	492,830	494,509
U.S. transition tax payable	154,953	154,953
Deferred income taxes	86,209	85,471
Long-term lease liabilities	86,684	0
Other liabilities	79,492	79,489
Accrued pension and other postretirement costs	254,835	260,984
Total liabilities	1,729,232	1,719,512
Redeemable convertible debentures	206	2,016
Vishay stockholders' equity
Common stock	13,234	13,212
Class B convertible common stock	1,210	1,210
Capital in excess of par value	1,425,101	1,436,011
(Accumulated deficit) retained earnings	24,922	(61,258)
Accumulated other comprehensive income (loss)	(15,323)	(6,791)
Total Vishay stockholders' equity	1,449,144	1,382,384
Noncontrolling interests	2,468	2,286
Total equity	1,451,612	1,384,670
Total liabilities, temporary equity, and equity	$ 3,181,050	$ 3,106,198

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Consolidated Statements of Operations [Abstract]
Net revenues	$ 745,159	$ 716,795
Costs of products sold	534,000	511,495
Gross profit	211,159	205,300
Selling, general, and administrative expenses	103,424	101,238
Operating income	107,735	104,062
Other income (expense):
Interest expense	(8,392)	(7,677)
Other components of net periodic pension cost	(3,396)	(3,519)
Loss on early extinguishment of debt	(1,307)	0
Other	5,308	(847)
Total other income (expense)	(7,787)	(12,043)
Income before taxes	99,948	92,019
Income tax expense (benefit)	24,307	29,474
Net earnings	75,641	62,545
Less: net earnings attributable to noncontrolling interests	182	179
Net earnings attributable to Vishay stockholders	$ 75,459	$ 62,366
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.52	$ 0.43
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.52	$ 0.39
Weighted average shares outstanding - basic (in shares)	144,554	144,327
Weighted average shares outstanding - diluted (in shares)	145,289	159,502
Cash dividends per share (in dollars per share)	$ 0.0850	$ 0.0675

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 75,641	$ 62,545
Other comprehensive income (loss), net of tax
Pension and post-retirement actuarial items	1,457	1,607
Foreign currency translation adjustment	(9,989)	27,024
Other comprehensive income (loss)	(8,532)	28,631
Comprehensive income	67,109	91,176
Less: comprehensive income attributable to noncontrolling interests	182	179
Comprehensive income attributable to Vishay stockholders	$ 66,927	$ 90,997

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Operating activities
Net earnings	$ 75,641	$ 62,545
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	40,428	40,558
(Gain) loss on disposal of property and equipment	(173)	(176)
Accretion of interest on convertible debt instruments	3,490	1,309
Inventory write-offs for obsolescence	6,967	5,457
Deferred income taxes	(2,614)	7,014
Loss on extinguishment of debt	1,307	0
Other	(1,744)	2,908
Net change in operating assets and liabilities, net of effects of businesses acquired	(43,784)	(72,756)
Net cash provided by operating activities	79,518	46,859
Investing activities
Capital expenditures	(36,367)	(28,273)
Proceeds from sale of property and equipment	395	184
Purchase of businesses, net of cash received	(11,862)	(12,072)
Purchase of short-term investments	(1,920)	(39,243)
Maturity of short-term investments	71,455	93,194
Other investing activities	2,893	(935)
Net cash provided by (used in) investing activities	24,594	12,855
Financing activities
Repurchase of convertible debentures	(22,695)	0
Net proceeds (payments) on revolving credit lines	0	34,000
Net changes in short-term borrowings	0	52
Cash withholding taxes paid when shares withheld for vested equity awards	(2,659)	(2,297)
Net cash provided by (used in) financing activities	(37,631)	22,020
Effect of exchange rate changes on cash and cash equivalents	(3,087)	9,825
Net increase in cash and cash equivalents	63,394	91,559
Cash and cash equivalents at beginning of period	686,032	748,032
Cash and cash equivalents at end of period	749,426	839,591
Common Stock [Member]
Operating activities
Net earnings	0	0
Financing activities
Dividends paid to common stockholders	(11,249)	(8,918)
Class B Convertible Common Stock [Member]
Operating activities
Net earnings	0	0
Financing activities
Dividends paid to common stockholders	$ (1,028)	$ (817)

Consolidated Statement of Equit

Consolidated Statement of Equity - USD ($) $ in Thousands	Capital In Excess of Par Value [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Vishay Stockholders' Equity [Member]	Noncontrolling Interests [Member]	Total	Common Stock [Member]	Class B Convertible Common Stock [Member]
Cumulative effect of accounting change for adoption of ASU	$ 0	$ 1,801	$ (1,801)	$ 0	$ 0	$ 0	$ 0	$ 0
Balance at Period Start at Dec. 31, 2017	1,752,506	(362,254)	25,714	1,430,367	2,032	1,432,399	13,188	1,213
Net earnings (loss)	0	62,366	0	62,366	179	62,545	0	0
Other comprehensive income	0	0	28,631	28,631	0	28,631	0	0
Conversions from Class B to common stock	0	0	0	0	0	0	3	(3)
Temporary equity reclassification	1,080	0	0	1,080	0	1,080	0	0
Issuance of stock and related tax withholdings	(2,318)	0	0	(2,297)	0	(2,297)	21	0
Dividends declared	11	(9,746)	0	(9,735)	0	(9,735)	0	0
Stock compensation expense	2,483	0	0	2,483	0	2,483	0	0
Balance at Period End at Mar. 31, 2018	1,753,762	(307,833)	52,544	1,512,895	2,211	1,515,106	13,212	1,210
Cumulative effect of accounting change for adoption of ASU	0	23,013	0	23,013	0	23,013	0	0
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 (loss)	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
Conversions from Class B to common stock	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	(2,681)	0	0	(2,659)	0	(2,659)	22	0
Dividends declared	15	(12,292)	0	(12,277)	0	(12,277)	0	0
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

Consolidated Statement of Equ_2

Consolidated Statement of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Consolidated Statement of Equity [Abstract]
Conversion of Class B shares (in shares)	18	31,800
Restricted stock issuances (in shares)	220,718	211,328
Dividends declared (in dollars per share)	$ 0.0850	$ 0.0675

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 30, 2019
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, 2018. The results of operations for the fiscal quarter and three fiscal months ended March 30, 2019 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 2019 end on March 30, 2019, June 29, 2019, September 28, 2019, and December 31, 2019, respectively. The four fiscal quarters in 2018 ended on March 31, 2018, June 30, 2018, September 29, 2018, and December 31, 2018, respectively. Recently Adopted Accounting Guidance In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-02, Leases (Topic 842) Leases On December 20, 2018, the Company received sale proceeds of $45,500 and concurrently leased-back its former manufacturing site in Santa Clara, California, under a short-term arrangement, to raze the buildings. Upon adoption of ASC Topic 842, the Company was required to reassess the accounting for these transactions. The transactions did not qualify as a completed sale and leaseback under previous GAAP. However, pursuant to ASC Topic 842’s sale and leaseback guidance, the transaction would qualify as a completed sale. The Company recognized a cumulative-effect adjustment to retained earnings (accumulated deficit) of $23,013, to recognize the sale as of the date of adoption, and derecognized the land, building, and related deferred proceeds, which had been recorded in other accrued expenses. The adoption of the ASU did not have a material impact on the Company's results of operations or cash flows. See Note 3. Recently Issued Accounting Guidance In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Revenue Recognition

Revenue Recognition	3 Months Ended
	Mar. 30, 2019
Revenue Recognition [Abstract]
Revenue Recognition	Note 2 – Revenue Recognition Sales returns and allowances accrual activity is shown below: Fiscal quarters ended March 30, 2019 March 31, 2018 Beginning balance $ 42,663 $ 36,680 Sales allowances 28,211 24,188 Credits issued (33,062 ) (28,450 ) Foreign currency (235 ) 288 Ending balance $ 37,577 $ 32,706 See disaggregated revenue information in Note 10.

Leases

Leases	3 Months Ended
	Mar. 30, 2019
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. Substantially all of the Company’s leases are structured and classified as operating leases. As of January 1, 2019, the Company accounts for its leases in accordance with ASC Topic 842. The Company leases assets in each region in which it operates. The Company’s leases are generally denominated in the currency of the leased assets' location, which may not be the functional currency of the subsidiary lessee. Accordingly, the Company remeasures its lease liability and recognizes a transactional gain/loss for leases denominated in currencies other than the functional currency of the subsidiary lessee. The Company recognizes right of use assets and lease liabilities for leases greater than twelve months in duration based on the contract consideration for lease components through the term of the lease and the applicable discount rate. Leases with a duration less than or equal to twelve months are considered short-term leases. The Company does not recognize right of use assets or lease liabilities for short-term leases and classifies the expense as short-term lease expense. Variable lease payments based on an index or rate are included in the right of use assets and lease liabilities based on the effective rates at lease commencement. Changes in the rates or indices do not impact the right of use asset or lease liability and are recognized as a component of lease expense in the statement of operations. Variable lease payments not based on an index or rate are not included in the initial right of use asset and lease liability and are recognized when incurred as a component of lease expense in the statement of operations. The Company has elected to not separate contract consideration for lease and non-lease components for its building leases. In addition to the noncancellable period of a lease, the Company includes periods covered by extension options it is reasonably certain to exercise, termination options that it is reasonably certain not to exercise, and extension and termination options controlled by the lessor in its determination of the lease term. The Company uses the rate implicit in the contract whenever possible when determining the applicable discount rate. When the implicit rate is not used, the Company employs a portfolio approach based on the duration of the lease. The portfolio lease rates are calculated monthly. 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 sheet for the Company's operating leases as of March 30, 2019 and the net right of use assets and lease liabilities recognized upon the adoption of ASC Topic 842 on January 1, 2019 are presented below: March 30, 2019 January 1, 2019 Right of use assets Operating Leases Buildings and improvements $ 91,106 $ 86,058 Machinery and equipment 5,175 5,404 Total $ 96,281 $ 91,462 Current lease liabilities Operating Leases Buildings and improvements $ 12,076 $ 10,644 Machinery and equipment 2,684 3,317 Total $ 14,760 $ 13,961 Long-term lease liabilities Operating Leases Buildings and improvements $ 84,202 $ 79,000 Machinery and equipment 2,482 2,823 Total $ 86,684 $ 81,823 Total lease liabilities $ 101,444 $ 95,784 Lease expense is classified in the statement of operations based on asset use. Total lease cost recognized on the consolidated condensed statement of operations is as follows: Fiscal quarter ended March 30, 2019 Lease expense Operating lease expense $ 5,536 Short-term lease expense 833 Variable lease expense 12 Total lease expense $ 6,381 The Company paid $5,050 for its operating leases in the fiscal quarter ended March 31, 2019, which are included in operating cash flows on the consolidated condensed statement of cash flows. The weighted-average remaining lease term for the Company's operating leases is 9.3 years and the weighted-average discount rate is 6.1% as of March 30, 2019. The undiscounted future lease payments for the Company's operating lease liabilities are as follows: March 30, 2019 2019 (excluding the three fiscal months ended March 30, 2019) $ 15,916 2020 18,527 2021 15,502 2022 13,036 2023 12,215 Thereafter 60,661 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. The Company elected to use the package of practical expedients available in ASC Topic 842; and accordingly, did not reassess existing contracts for leases, the classification of existing leases, or initial direct costs for any existing leases. The Company also elected to use the practical expedient available in ASC Topic 842 for land easements. The Company did not elect the practical expedient available in ASC Topic 842 to use hindsight in determining the lease term. Accordingly, the remaining lease term as of January 1, 2019 was used to calculate the initial right of use asset and lease liability.

Acquisition Activities

Acquisition Activities	3 Months Ended
	Mar. 30, 2019
Acquisition Activities [Abstract]
Acquisition Activities	Note 4 – Acquisition Activities As part of its growth strategy, the Company seeks to expand through targeted acquisitions of other manufacturers of electronic components that have established positions in major markets, reputations for product quality and reliability, and product lines with which the Company has substantial marketing and technical expertise. On January 3, 2019, the Company acquired substantially all of the assets of Bi-Metallix, Inc. ("Bi-Metallix"), a U.S.-based, privately-held provider of electron beam continuous strip welding services for $11,862. The Company was a major customer of Bi-Metallix, and the acquired business is being vertically integrated into the Company's Resistors & Inductors segment. Based on an estimate of their fair values, the Company allocated $2,900 of the purchase price to definite-lived intangible assets. After allocating the purchase price to the assets acquired and liabilities assumed based on an estimation of their fair values at the date of acquisition, the Company recorded goodwill of $3,324 related to this acquisition. The results and operations of this acquisition have been included in the Resistors & Inductors segment since January 3, 2019. The inclusion of this acquisition did not have a material impact on the Company's consolidated results for the fiscal quarter ended March 30, 2019. The goodwill related to this acquisition is included in the Resistors & Inductors reporting unit for goodwill impairment testing. Had this acquisition occurred as of the beginning of the periods presented in these consolidated condensed financial statements, the pro forma statements of operations would not be materially different than the consolidated condensed statements of operations presented. The remaining fluctuation in the goodwill account balance is due to foreign currency translation.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 30, 2019
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 March 30, 2019 and March 31, 2018 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. As of March 30, 2019, the Company has approximately $300,000 of unremitted foreign earnings that the Company has deemed not permanently reinvested and thus has accrued foreign withholding and other taxes. The Company continues to evaluate the timing and uses of the remaining amounts, and may decide to ultimately not repatriate some of these amounts. The Company’s repurchase of a portion of the outstanding convertible debentures in the first fiscal quarter of 2019 (see Note 6) slightly reduced the Company’s expected 2019 tax rate. The Company recognized a tax benefit on the pre-tax loss on early extinguishment of debt. The Company also recognized a tax benefit of $1,312 resulting from the extinguishment, reflecting the reduction in deferred tax liabilities related to the special tax attributes of the debentures. Income tax expense for the fiscal quarter ended March 30, 2019, includes tax benefit of $585 for the periodic remeasurement of the deferred tax liability recorded for the foreign taxes associated with the Company's cash repatriation program. Income tax expense for the fiscal quarter ended March 31, 2018 included tax expense of $1,316 for the periodic remeasurement of the deferred tax liability recorded for the Company's cash repatriation program. During the fiscal quarter ended March 30, 2019, the liabilities for unrecognized tax benefits increased by $1,446 on a net basis, due to increases for tax positions taken in the current and prior periods and interest, offset by expiration of a statute.

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 30, 2019
Long-Term Debt [Abstract]
Long-Term Debt	Note 6 – Long-Term Debt Long-term debt consists of the following: March 30, 2019 December 31, 2018 Credit facility $ - $ - Convertible senior notes, due 2025 498,629 495,203 Convertible senior debentures, due 2040 144 539 Convertible senior debentures, due 2041 8,085 12,812 Convertible senior debentures, due 2042 - 923 Deferred financing costs (14,028 ) (14,968 ) 492,830 494,509 Less current portion - - $ 492,830 $ 494,509 Convertible Debt Instruments The following table summarizes some key facts and terms regarding the outstanding convertible debt instruments as of March 30, 2019: 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 March 30, 2019 $ 600,000 $ 350 $ 20,790 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 March 13, 2019 (per $1 principal amount) 31.7536 78.7076 57.4367 Effective conversion price effective March 13, 2019 (per share) $ 31.49 $ 12.71 $ 17.41 130% of the conversion price (per share) $ 40.94 $ 16.52 $ 22.63 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. The terms of the fully retired convertible senior debentures due 2042 were also generally congruent to the convertible senior debentures due 2040 and due 2041. 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. 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 (initially $40.94); (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 debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria, and have remained convertible for each subsequent quarterly evaluation through the March 30, 2019 evaluation, due to the sale price of Vishay's common stock exceeding 130% of the conversion price for the applicable periods. The convertible senior debentures due 2040 will remain convertible until June 29, 2019, at which time the conversion criteria will be reevaluated. At the direction of its Board of Directors, the Company intends, upon future conversion of any of the convertible debt instruments, to repay the principal amounts of the convertible debt instruments in cash and settle any additional amounts in shares of Vishay common stock. The excess of the amount that the Company would pay to the holders of the convertible senior debentures due 2040 upon conversion over the carrying value of the liability component of the debentures currently convertible has been reclassified as temporary equity on the consolidated condensed financial statements. The Company intends to finance the principal amount of any converted debentures using borrowings under its credit facility. Accordingly, the debt component of the convertible senior debentures due 2040 continues to be classified as a non-current liability on the consolidated condensed balance sheets. 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 Embedded derivative Carrying value of liability component Equity component (including temporary equity) - net carrying value March 30, 201 Convertible senior notes due 2025 $ 600,000 (101,371 ) - $ 498,629 $ 85,262 Convertible senior debentures due 2040 and due 2041 $ 21,140 (12,935 ) 24 $ 8,229 $ 8,767 Total $ 621,140 $ (114,306 ) $ 24 $ 506,858 $ 94,029 December 31, 2018 Convertible senior notes due 2025 $ 600,000 (104,797 ) - $ 495,203 $ 85,262 Convertible senior debentures due 2040, due 2041, and due 2042 $ 36,556 (22,352 ) 70 $ 14,274 $ 15,092 Total $ 636,556 $ (127,149 ) $ 70 $ 509,477 $ 100,354 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 ten years subsequent to their respective issuance. 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 Non-cash amortization of deferred financing costs Non-cash change in value of derivative liability Total interest expense related to the debt instruments March 30, 2019 Convertible senior notes due 2025 $ 3,375 3,426 454 - $ 7,255 Convertible senior debentures $ 148 64 2 (18 ) $ 196 Total $ 3,523 $ 3,490 $ 456 $ (18 ) $ 7,451 March 31, 2018 Convertible senior notes due 2025 $ - - - - $ - Convertible senior debentures $ 3,235 1,309 47 161 $ 4,752 Total $ 3,235 $ 1,309 $ 47 $ 161 $ 4,752 The Company used cash to repurchase $960, $12,288 and $2,168 principal amounts of convertible senior debentures due 2040, due 2041, and due 2042, respectively, in the first fiscal quarter of 2019. The net carrying value of the debentures repurchased were $396, $4,770, and $924, respectively. In accordance with the authoritative accounting guidance for convertible debentures, the aggregate repurchase payment of $22,695 was allocated between the liability ($7,311) and equity (including temporary equity, $15,384) 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 $1,307, including the write-off of a portion of unamortized debt issuance costs. The convertible senior debentures due 2042 have been fully repurchased, and the trustee has confirmed that the Company has satisfied and discharged its obligations under the indenture governing the convertible senior debentures due 2042.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 7 – Accumulated Other Comprehensive Income (Loss) The cumulative balance of each component of other comprehensive income (loss) and the income tax effects allocated to each component are as follows: Pension and other post-retirement actuarial items Currency translation adjustment Total Balance at January 1, 2019 $ (58,291 ) $ 51,500 $ (6,791 ) Other comprehensive income before reclassifications - (9,989 ) $ (9,989 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (9,989 ) $ (9,989 ) Amounts reclassified out of AOCI 2,064 - $ 2,064 Tax effect (607 ) - $ (607 ) Amounts reclassified out of AOCI, net of tax 1,457 - $ 1,457 Net other comprehensive income $ 1,457 $ (9,989 ) $ (8,532 ) Balance at March 30, 2019 $ (56,834 ) $ 41,511 $ (15,323 ) Reclassifications of pension and other post-retirement actuarial items out of AOCI are included in the computation of net periodic benefit cost. See Note 8 for further information.

Pensions and Other Postretireme

Pensions and Other Postretirement Benefits	3 Months Ended
	Mar. 30, 2019
Pensions and Other Postretirement Benefits [Abstract]
Pensions and Other Postretirement Benefits	Note 8 – Pensions and Other Postretirement Benefits The Company maintains various retirement benefit plans. Defined Benefit Pension Plans The following table shows the components of the net periodic pension cost for the first fiscal quarters of 2019 and 2018 for the Company’s defined benefit pension plans: Fiscal quarter ended March 30, 2019 Fiscal quarter ended March 31, 2018 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 852 $ - $ 948 Interest cost 424 1,291 371 1,242 Expected return on plan assets - (490 ) - (488 ) Amortization of prior service cost 36 51 36 55 Amortization of losses 118 1,359 159 1,604 Curtailment and settlement losses - 505 - 462 Net periodic benefit cost $ 578 $ 3,568 $ 566 $ 3,823 Other Postretirement Benefits The following table shows the components of the net periodic benefit cost for the first fiscal quarters of 2019 and 2018 for the Company’s other postretirement benefit plans: Fiscal quarter ended March 30, 2019 Fiscal quarter ended March 31, 2018 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 35 $ 72 $ 34 $ 75 Interest cost 77 30 68 30 Amortization of prior service (credit) - - (37 ) - Amortization of losses (gains) (32 ) 27 (10 ) 27 Net periodic benefit cost $ 80 $ 129 $ 55 $ 132

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 30, 2019
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 9 – Stock-Based Compensation The Company has various stockholder-approved programs which allow for the grant of stock-based compensation to officers, employees, and non-employee directors of the Company. The amount of compensation cost related to stock-based payment transactions is measured based on the grant-date fair value of the equity instruments issued. The Company determines compensation cost for restricted stock units (“RSUs”) and phantom stock units based on the grant-date fair value of the underlying common stock adjusted for expected dividends paid over the required vesting period for non-participating awards. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award. The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended March 30, 2019 March 31, 2018 Restricted stock units $ 3,359 $ 2,269 Phantom stock units 177 214 Total $ 3,536 $ 2,483 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 March 30, 2019 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 5,669 1.0 Phantom stock units - 0.0 Total $ 5,669 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 March 30, 2019 and changes during the three 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, 2019 904 $ 14.77 Granted 314 19.85 Vested* (349 ) 11.50 Cancelled or forfeited - - Outstanding at March 30, 2019 869 $ 17.92 Expected to vest at March 30, 2019 855 * 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, 2020 167 - 167 January 1, 2021 141 - 141 January 1, 2022 174 - 174 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 March 30, 2019 and changes during the three 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, 2019 170 Granted 10 $ 17.72 Dividend equivalents issued 1 Outstanding at March 30, 2019 181

Segment Information

Segment Information	3 Months Ended
	Mar. 30, 2019
Segment Information [Abstract]
Segment Information	Note 10 – 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, five 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 and inductors both impede electric current. 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. 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, 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 Total Fiscal quarter ended March 30, 2019: Net revenues $ 137,341 $ 167,840 $ 60,562 $ 260,471 $ 118,945 $ 745,159 Gross profit $ 36,059 $ 43,492 $ 16,017 $ 85,869 $ 29,722 $ 211,159 Segment operating income $ 26,678 $ 38,128 $ 11,710 $ 76,987 $ 24,566 $ 178,069 Fiscal quarter ended March 31, 2018: Net revenues $ 127,506 $ 167,017 $ 71,958 $ 244,046 $ 106,268 $ 716,795 Gross profit $ 32,022 $ 43,200 $ 27,233 $ 78,530 $ 24,315 $ 205,300 Segment operating income $ 22,558 $ 37,931 $ 22,794 $ 70,002 $ 18,893 $ 172,178 Fiscal quarters ended March 30, 2019 March 31, 2018 Reconciliation: Segment Operating Income $ 178,069 $ 172,178 Unallocated Selling, General, and Administrative Expenses (70,334 ) (68,116 ) Consolidated Operating Income 107,735 $ 104,062 Unallocated Other Income (Expense) (7,787 ) (12,043 ) Consolidated Income Before Taxes $ 99,948 92,019 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 March 30, 2019 March 31, 2018 Distributors $ 411,560 $ 404,060 OEMs 282,636 264,050 EMS companies 50,963 48,685 Total Revenue $ 745,159 $ 716,795 Net revenues were attributable to customers in the following regions: Fiscal quarters ended March 30, 2019 March 31, 2018 Asia $ 259,726 $ 285,478 Europe 278,899 267,382 Americas 206,534 163,935 Total Revenue $ 745,159 $ 716,795 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 March 30, 2019 March 31, 2018 Industrial $ 281,590 $ 280,212 Automotive 214,786 208,394 Telecommunications 53,280 45,924 Computing 47,508 47,431 Consumer Products 34,049 37,259 Power Supplies 30,127 34,243 Military and Aerospace 47,561 35,214 Medical 36,258 28,118 Total revenue $ 745,159 $ 716,795

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 30, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Note 11 – Earnings Per Share The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands) Fiscal quarters ended March 30, 2019 March 31, 2018 Numerator: Net earnings attributable to Vishay stockholders $ 75,459 $ 62,366 Denominator: Denominator for basic earnings per share: Weighted average shares 144,375 144,160 Outstanding phantom stock units 179 167 Adjusted weighted average shares - basic 144,554 144,327 Effect of dilutive securities: Convertible and exchangeable debt instruments 237 14,610 Restricted stock units 498 565 Dilutive potential common shares 735 15,175 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,289 159,502 Basic earnings per share attributable to Vishay stockholders $ 0.52 $ 0.43 Diluted earnings per share attributable to Vishay stockholders $ 0.52 $ 0.39 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 March 30, 2019 March 31, 2018 Convertible debt instruments: Convertible senior notes due 2025 19,052 - Weighted average other 315 307 The Company’s convertible debt instruments are only convertible for specified periods upon the occurrence of certain events. The convertible debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria, and have remained convertible for each subsequent quarterly evaluation through the March 30, 2019 evaluation. 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 $12.71, 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 $17.41, 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 $31.49, no shares are included in the diluted earnings per share computation for the convertible senior notes due 2025.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 30, 2019
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 12 – Fair Value Measurements The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels: Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3: Unobservable inputs that reflect the Company’s own assumptions. An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented. The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis: Total Fair Value Level 1 Level 2 Level 3 March 30, 2019 Assets: Assets held in rabbi trusts $ 47,849 $ 31,479 $ 16,370 $ - Available for sale securities $ 4,295 4,295 - - $ 52,144 $ 35,774 $ 16,370 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ 0 $ - $ - $ 0 Embedded derivative - convertible debentures due 2041 $ (24 ) - - (24 ) $ (24 ) $ - $ - $ (24 ) December 31, 2018 Assets: Assets held in rabbi trusts $ 41,770 $ 26,278 15,492 $ - Available for sale securities $ 4,309 4,309 - - $ 46,079 $ 30,587 $ 15,492 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (1 ) $ - $ - $ (1 ) Embedded derivative - convertible debentures due 2041 $ (67 ) - - (67 ) Embedded derivative - convertible debentures due 2042 $ (2 ) - - (2 ) $ (70 ) $ - $ - $ (70 ) As described in Note 6, the Company allocated the aggregate repurchase payment of convertible senior debentures between the associated liability and equity components of the repurchased convertible senior debentures based on a nonrecurring fair value measurement of the convertible senior debentures due 2040, due 2041, and due 2042 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 convertible senior debentures due 2040 and due 2041 contain embedded derivative features that GAAP requires to be bifurcated and remeasured each reporting period. Each quarter, the change in the fair value of the embedded derivative features, if any, is recorded in the consolidated condensed statements of operations. The Company uses a derivative valuation model to derive the value of the embedded derivative features. Key inputs into this valuation model are the Company’s current stock price, risk-free interest rates, the stock dividend yield, the stock volatility, and the debentures’ credit spread over LIBOR. The first three aforementioned inputs are based on observable market data and are considered Level 2 inputs while the last two aforementioned inputs are unobservable and thus require management’s judgment and are considered Level 3 inputs. The fair value measurement is considered a Level 3 measurement within the fair value hierarchy. The fair value of the long-term debt, excluding the derivative liabilities and deferred financing costs, at March 30, 2019 and December 31, 2018 is approximately $586,200 and $577,200, respectively, compared to its carrying value, excluding the derivative liabilities and deferred financing costs, of $506,834 and $509,407, 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 March 30, 2019 and December 31, 2018, 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 March 30, 2019 and December 31, 2018, 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)	3 Months Ended
	Mar. 30, 2019
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 2019 end on March 30, 2019, June 29, 2019, September 28, 2019, and December 31, 2019, respectively. The four fiscal quarters in 2018 ended on March 31, 2018, June 30, 2018, September 29, 2018, and December 31, 2018, respectively.
Recently Adopted Accounting Guidance	Recently Adopted Accounting Guidance In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-02, Leases (Topic 842) Leases On December 20, 2018, the Company received sale proceeds of $45,500 and concurrently leased-back its former manufacturing site in Santa Clara, California, under a short-term arrangement, to raze the buildings. Upon adoption of ASC Topic 842, the Company was required to reassess the accounting for these transactions. The transactions did not qualify as a completed sale and leaseback under previous GAAP. However, pursuant to ASC Topic 842’s sale and leaseback guidance, the transaction would qualify as a completed sale. The Company recognized a cumulative-effect adjustment to retained earnings (accumulated deficit) of $23,013, to recognize the sale as of the date of adoption, and derecognized the land, building, and related deferred proceeds, which had been recorded in other accrued expenses. The adoption of the ASU did not have a material impact on the Company's results of operations or cash flows. See Note 3.
Recently Issued Accounting Guidance	Recently Issued Accounting Guidance In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
Reclassifications	Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Leases (Policies)

Leases (Policies)	3 Months Ended
	Mar. 30, 2019
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. Substantially all of the Company’s leases are structured and classified as operating leases. As of January 1, 2019, the Company accounts for its leases in accordance with ASC Topic 842. The Company leases assets in each region in which it operates. The Company’s leases are generally denominated in the currency of the leased assets' location, which may not be the functional currency of the subsidiary lessee. Accordingly, the Company remeasures its lease liability and recognizes a transactional gain/loss for leases denominated in currencies other than the functional currency of the subsidiary lessee. The Company recognizes right of use assets and lease liabilities for leases greater than twelve months in duration based on the contract consideration for lease components through the term of the lease and the applicable discount rate. Leases with a duration less than or equal to twelve months are considered short-term leases. The Company does not recognize right of use assets or lease liabilities for short-term leases and classifies the expense as short-term lease expense. Variable lease payments based on an index or rate are included in the right of use assets and lease liabilities based on the effective rates at lease commencement. Changes in the rates or indices do not impact the right of use asset or lease liability and are recognized as a component of lease expense in the statement of operations. Variable lease payments not based on an index or rate are not included in the initial right of use asset and lease liability and are recognized when incurred as a component of lease expense in the statement of operations. The Company has elected to not separate contract consideration for lease and non-lease components for its building leases. In addition to the noncancellable period of a lease, the Company includes periods covered by extension options it is reasonably certain to exercise, termination options that it is reasonably certain not to exercise, and extension and termination options controlled by the lessor in its determination of the lease term. The Company uses the rate implicit in the contract whenever possible when determining the applicable discount rate. When the implicit rate is not used, the Company employs a portfolio approach based on the duration of the lease. The portfolio lease rates are calculated monthly. 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)	3 Months Ended
	Mar. 30, 2019
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 March 30, 2019 and March 31, 2018 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)	3 Months Ended
	Mar. 30, 2019
Stock-Based Compensation [Abstract]
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	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)	3 Months Ended
	Mar. 30, 2019
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, five 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 and inductors both impede electric current. 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. 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, 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)	3 Months Ended
	Mar. 30, 2019
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 convertible debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria, and have remained convertible for each subsequent quarterly evaluation through the March 30, 2019 evaluation. 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 $12.71, 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 $17.41, 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 $31.49, 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)	3 Months Ended
	Mar. 30, 2019
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.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 30, 2019
Revenue Recognition [Abstract]
Schedule of Loss Contingencies by Contingency	Sales returns and allowances accrual activity is shown below: Fiscal quarters ended March 30, 2019 March 31, 2018 Beginning balance $ 42,663 $ 36,680 Sales allowances 28,211 24,188 Credits issued (33,062 ) (28,450 ) Foreign currency (235 ) 288 Ending balance $ 37,577 $ 32,706 See disaggregated revenue information in Note 10.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 30, 2019
Leases [Abstract]
Right of Use Assets and Lease Liabilities	The net right of use assets and lease liabilities recognized on the consolidated condensed balance sheet for the Company's operating leases as of March 30, 2019 and the net right of use assets and lease liabilities recognized upon the adoption of ASC Topic 842 on January 1, 2019 are presented below: March 30, 2019 January 1, 2019 Right of use assets Operating Leases Buildings and improvements $ 91,106 $ 86,058 Machinery and equipment 5,175 5,404 Total $ 96,281 $ 91,462 Current lease liabilities Operating Leases Buildings and improvements $ 12,076 $ 10,644 Machinery and equipment 2,684 3,317 Total $ 14,760 $ 13,961 Long-term lease liabilities Operating Leases Buildings and improvements $ 84,202 $ 79,000 Machinery and equipment 2,482 2,823 Total $ 86,684 $ 81,823 Total lease liabilities $ 101,444 $ 95,784
Lease Cost	Lease expense is classified in the statement of operations based on asset use. Total lease cost recognized on the consolidated condensed statement of operations is as follows: Fiscal quarter ended March 30, 2019 Lease expense Operating lease expense $ 5,536 Short-term lease expense 833 Variable lease expense 12 Total lease expense $ 6,381
Undiscounted Future Lease Payments for Operating Lease Liabilities	The undiscounted future lease payments for the Company's operating lease liabilities are as follows: March 30, 2019 2019 (excluding the three fiscal months ended March 30, 2019) $ 15,916 2020 18,527 2021 15,502 2022 13,036 2023 12,215 Thereafter 60,661 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.

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 30, 2019
Long-Term Debt [Abstract]
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 Non-cash amortization of deferred financing costs Non-cash change in value of derivative liability Total interest expense related to the debt instruments March 30, 2019 Convertible senior notes due 2025 $ 3,375 3,426 454 - $ 7,255 Convertible senior debentures $ 148 64 2 (18 ) $ 196 Total $ 3,523 $ 3,490 $ 456 $ (18 ) $ 7,451 March 31, 2018 Convertible senior notes due 2025 $ - - - - $ - Convertible senior debentures $ 3,235 1,309 47 161 $ 4,752 Total $ 3,235 $ 1,309 $ 47 $ 161 $ 4,752
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 Embedded derivative Carrying value of liability component Equity component (including temporary equity) - net carrying value March 30, 201 Convertible senior notes due 2025 $ 600,000 (101,371 ) - $ 498,629 $ 85,262 Convertible senior debentures due 2040 and due 2041 $ 21,140 (12,935 ) 24 $ 8,229 $ 8,767 Total $ 621,140 $ (114,306 ) $ 24 $ 506,858 $ 94,029 December 31, 2018 Convertible senior notes due 2025 $ 600,000 (104,797 ) - $ 495,203 $ 85,262 Convertible senior debentures due 2040, due 2041, and due 2042 $ 36,556 (22,352 ) 70 $ 14,274 $ 15,092 Total $ 636,556 $ (127,149 ) $ 70 $ 509,477 $ 100,354
Key terms of the convertible debt instruments	The following table summarizes some key facts and terms regarding the outstanding convertible debt instruments as of March 30, 2019: 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 March 30, 2019 $ 600,000 $ 350 $ 20,790 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 March 13, 2019 (per $1 principal amount) 31.7536 78.7076 57.4367 Effective conversion price effective March 13, 2019 (per share) $ 31.49 $ 12.71 $ 17.41 130% of the conversion price (per share) $ 40.94 $ 16.52 $ 22.63 Call date n/a November 20, 2020 May 20, 2021
Schedule of long-term debt instruments	Long-term debt consists of the following: March 30, 2019 December 31, 2018 Credit facility $ - $ - Convertible senior notes, due 2025 498,629 495,203 Convertible senior debentures, due 2040 144 539 Convertible senior debentures, due 2041 8,085 12,812 Convertible senior debentures, due 2042 - 923 Deferred financing costs (14,028 ) (14,968 ) 492,830 494,509 Less current portion - - $ 492,830 $ 494,509

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 30, 2019
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, 2019 $ (58,291 ) $ 51,500 $ (6,791 ) Other comprehensive income before reclassifications - (9,989 ) $ (9,989 ) Tax effect - - $ - Other comprehensive income before reclassifications, net of tax - (9,989 ) $ (9,989 ) Amounts reclassified out of AOCI 2,064 - $ 2,064 Tax effect (607 ) - $ (607 ) Amounts reclassified out of AOCI, net of tax 1,457 - $ 1,457 Net other comprehensive income $ 1,457 $ (9,989 ) $ (8,532 ) Balance at March 30, 2019 $ (56,834 ) $ 41,511 $ (15,323 )

Pensions and Other Postretire_2

Pensions and Other Postretirement Benefits (Tables)	3 Months Ended
	Mar. 30, 2019
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 first fiscal quarters of 2019 and 2018 for the Company’s defined benefit pension plans: Fiscal quarter ended March 30, 2019 Fiscal quarter ended March 31, 2018 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 852 $ - $ 948 Interest cost 424 1,291 371 1,242 Expected return on plan assets - (490 ) - (488 ) Amortization of prior service cost 36 51 36 55 Amortization of losses 118 1,359 159 1,604 Curtailment and settlement losses - 505 - 462 Net periodic benefit cost $ 578 $ 3,568 $ 566 $ 3,823
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 first fiscal quarters of 2019 and 2018 for the Company’s other postretirement benefit plans: Fiscal quarter ended March 30, 2019 Fiscal quarter ended March 31, 2018 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 35 $ 72 $ 34 $ 75 Interest cost 77 30 68 30 Amortization of prior service (credit) - - (37 ) - Amortization of losses (gains) (32 ) 27 (10 ) 27 Net periodic benefit cost $ 80 $ 129 $ 55 $ 132

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 30, 2019
Stock-Based Compensation [Abstract]
Summary of Recognized Stock-based Compensation Expense	The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended March 30, 2019 March 31, 2018 Restricted stock units $ 3,359 $ 2,269 Phantom stock units 177 214 Total $ 3,536 $ 2,483
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 March 30, 2019 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 5,669 1.0 Phantom stock units - 0.0 Total $ 5,669
RSU Activity	RSU activity under the 2007 Program as of March 30, 2019 and changes during the three 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, 2019 904 $ 14.77 Granted 314 19.85 Vested* (349 ) 11.50 Cancelled or forfeited - - Outstanding at March 30, 2019 869 $ 17.92 Expected to vest at March 30, 2019 855 * 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, 2020 167 - 167 January 1, 2021 141 - 141 January 1, 2022 174 - 174
Phantom Stock Unit Activity Under the Phantom Stock Plan	Phantom stock unit activity under the phantom stock plan as of March 30, 2019 and changes during the three 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, 2019 170 Granted 10 $ 17.72 Dividend equivalents issued 1 Outstanding at March 30, 2019 181

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 30, 2019
Segment Information [Abstract]
Segment Reporting Information by Segment	The following tables set forth business segment information: MOSFETs Diodes Optoelectronic Components Resistors & Inductors Capacitors Total Fiscal quarter ended March 30, 2019: Net revenues $ 137,341 $ 167,840 $ 60,562 $ 260,471 $ 118,945 $ 745,159 Gross profit $ 36,059 $ 43,492 $ 16,017 $ 85,869 $ 29,722 $ 211,159 Segment operating income $ 26,678 $ 38,128 $ 11,710 $ 76,987 $ 24,566 $ 178,069 Fiscal quarter ended March 31, 2018: Net revenues $ 127,506 $ 167,017 $ 71,958 $ 244,046 $ 106,268 $ 716,795 Gross profit $ 32,022 $ 43,200 $ 27,233 $ 78,530 $ 24,315 $ 205,300 Segment operating income $ 22,558 $ 37,931 $ 22,794 $ 70,002 $ 18,893 $ 172,178
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Fiscal quarters ended March 30, 2019 March 31, 2018 Reconciliation: Segment Operating Income $ 178,069 $ 172,178 Unallocated Selling, General, and Administrative Expenses (70,334 ) (68,116 ) Consolidated Operating Income 107,735 $ 104,062 Unallocated Other Income (Expense) (7,787 ) (12,043 ) Consolidated Income Before Taxes $ 99,948 92,019
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 March 30, 2019 March 31, 2018 Distributors $ 411,560 $ 404,060 OEMs 282,636 264,050 EMS companies 50,963 48,685 Total Revenue $ 745,159 $ 716,795 Net revenues were attributable to customers in the following regions: Fiscal quarters ended March 30, 2019 March 31, 2018 Asia $ 259,726 $ 285,478 Europe 278,899 267,382 Americas 206,534 163,935 Total Revenue $ 745,159 $ 716,795 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 March 30, 2019 March 31, 2018 Industrial $ 281,590 $ 280,212 Automotive 214,786 208,394 Telecommunications 53,280 45,924 Computing 47,508 47,431 Consumer Products 34,049 37,259 Power Supplies 30,127 34,243 Military and Aerospace 47,561 35,214 Medical 36,258 28,118 Total revenue $ 745,159 $ 716,795

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 30, 2019
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 March 30, 2019 March 31, 2018 Numerator: Net earnings attributable to Vishay stockholders $ 75,459 $ 62,366 Denominator: Denominator for basic earnings per share: Weighted average shares 144,375 144,160 Outstanding phantom stock units 179 167 Adjusted weighted average shares - basic 144,554 144,327 Effect of dilutive securities: Convertible and exchangeable debt instruments 237 14,610 Restricted stock units 498 565 Dilutive potential common shares 735 15,175 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 145,289 159,502 Basic earnings per share attributable to Vishay stockholders $ 0.52 $ 0.43 Diluted earnings per share attributable to Vishay stockholders $ 0.52 $ 0.39
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 March 30, 2019 March 31, 2018 Convertible debt instruments: Convertible senior notes due 2025 19,052 - Weighted average other 315 307

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 30, 2019
Fair Value Measurements [Abstract]
Schedule of fair Value, Assets and Liabilities 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 March 30, 2019 Assets: Assets held in rabbi trusts $ 47,849 $ 31,479 $ 16,370 $ - Available for sale securities $ 4,295 4,295 - - $ 52,144 $ 35,774 $ 16,370 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ 0 $ - $ - $ 0 Embedded derivative - convertible debentures due 2041 $ (24 ) - - (24 ) $ (24 ) $ - $ - $ (24 ) December 31, 2018 Assets: Assets held in rabbi trusts $ 41,770 $ 26,278 15,492 $ - Available for sale securities $ 4,309 4,309 - - $ 46,079 $ 30,587 $ 15,492 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (1 ) $ - $ - $ (1 ) Embedded derivative - convertible debentures due 2041 $ (67 ) - - (67 ) Embedded derivative - convertible debentures due 2042 $ (2 ) - - (2 ) $ (70 ) $ - $ - $ (70 )

Basis of Presentation (Details)

Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Recently Adopted Accounting Guidance [Abstract]
Right of use assets	$ 96,281	$ 0
Lease liabilities	101,444
Proceeds from sale of property and equipment	$ 395		$ 184
Cumulative effect of accounting change for adoption of ASU		23,013		$ 0
ASU 2016-02 [Member]
Recently Adopted Accounting Guidance [Abstract]
Right of use assets		91,462
Lease liabilities		95,784
Proceeds from sale of property and equipment		45,500
Cumulative effect of accounting change for adoption of ASU		$ 23,013

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Sales returns and allowances accrual activity [Roll Forward]
Beginning balance	$ 42,663	$ 36,680
Sales allowances	28,211	24,188
Credits issued	(33,062)	(28,450)
Foreign currency	(235)	288
Ending balance	$ 37,577	$ 32,706

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Dec. 31, 2018
Assets and Liabilities [Abstract]
Right of use assets	$ 96,281	$ 0
Current lease liabilities	14,760	0
Long-term lease liabilities	86,684	0
Total lease liabilities	101,444
Lease cost [Abstract]
Operating lease cost	5,536
Short-term lease cost	833
Variable lease cost	12
Total lease cost	6,381
Cash paid for operating leases	$ 5,050
Weighted-average remaining lease term - operating leases	9 years 3 months 18 days
Weighted-average discount rate - operating leases	6.10%
Undiscounted future lease payments for operating lease liabilities [Abstract]
2019 (excluding the three fiscal months ended March 30, 2019)	$ 15,916
2020	18,527
2021	15,502
2022	13,036
2023	12,215
Thereafter	60,661
ASU 2016-02 [Member]
Assets and Liabilities [Abstract]
Right of use assets		91,462
Current lease liabilities		13,961
Long-term lease liabilities		81,823
Total lease liabilities		95,784
Building and Improvements [Member]
Assets and Liabilities [Abstract]
Right of use assets	91,106
Current lease liabilities	12,076
Long-term lease liabilities	84,202
Building and Improvements [Member] | ASU 2016-02 [Member]
Assets and Liabilities [Abstract]
Right of use assets		86,058
Current lease liabilities		10,644
Long-term lease liabilities		79,000
Machinery and Equipment [Member]
Assets and Liabilities [Abstract]
Right of use assets	5,175
Current lease liabilities	2,684
Long-term lease liabilities	$ 2,482
Machinery and Equipment [Member] | ASU 2016-02 [Member]
Assets and Liabilities [Abstract]
Right of use assets		5,404
Current lease liabilities		3,317
Long-term lease liabilities		$ 2,823

Acquisition Activities (Details

Acquisition Activities (Details) - USD ($) $ in Thousands	Jan. 03, 2019	Mar. 30, 2019	Mar. 31, 2018	Dec. 31, 2018
Acquisition Activities [Abstract]
Acquisition of business, net of cash acquired		$ 11,862	$ 12,072
Goodwill related to acquisitions		$ 150,628		$ 147,480
Bi-Metallix [Member]
Acquisition Activities [Abstract]
Purchase price of businesses	$ 11,862
Finite-lived Intangible Assets Acquired	2,900
Goodwill related to acquisitions	$ 3,324
Business Acquisition, Name of Acquired Entity	Bi-Metallix, Inc.
Business Acquisition, Effective Date of Acquisition		Jan. 3, 2019

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Income Taxes [Abstract]
Increase in liabilities for unrecognized tax benefits	$ 1,446
Income Tax Uncertainties [Abstract]
Additional expected repatriation	300,000
Remeasurement of repatriation deferred tax liability [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred Other Tax Expense (Benefit)	(585)	$ 1,316
Remeasurement of deferred tax liability debt extinguishment [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred Other Tax Expense (Benefit)	$ (1,312)

Long-Term Debt (Details)

Long-Term Debt (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 30, 2019USD ($)$ / shares	Jun. 30, 2018	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)
Debt Instruments [Abstract]
Credit facility	$ 0			$ 0
Deferred Financing Costs	(14,028)			(14,968)
Long-term debt	492,830			494,509
Less current portion	0			0
Long-term debt, less current portion	492,830			494,509
Interest expense [Abstract]
Contractual coupon interest	3,523		$ 3,235
Non-cash amortization of debt discount	3,490		1,309
Non-cash amortization of deferred financing costs	456		47
Non-cash change in value of derivative liability	(18)		161
Total interest expense related to the debentures	7,451		4,752
Purchase price of extinguished debt	22,695
Allocated liability component of repurchased debt	7,311
Allocated equity component of repurchased debt	15,384
Loss on extinguishment of debt, including the write-off of portion of unamortized debt issuance costs	(1,307)		0
Convertible Senior Debentures, Due 2040 [Member]
Debt Instruments [Abstract]
Convertible Debt, Noncurrent	$ 144			539
Issuance date	Nov. 9, 2010
Debt maturity date	Nov. 15, 2040
Cash coupon rate	2.25%
Nonconvertible debt borrowing rate at issuance	8.00%
Effective conversion rate	78.7076
Effective conversion price (in dollars per share) | $ / shares	$ 12.71
130% of the conversion price (in dollars per share) | $ / shares	$ 16.52
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%
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	$ 350
Interest expense [Abstract]
Principal amount of repurchased debt	960
Net carrying value of repurchased debt	396
Convertible Senior Debentures, Due 2041 [Member]
Debt Instruments [Abstract]
Convertible Debt, Noncurrent	$ 8,085			12,812
Issuance date	May 13, 2011
Debt maturity date	May 15, 2041
Cash coupon rate	2.25%
Nonconvertible debt borrowing rate at issuance	8.375%
Effective conversion rate	57.4367
Effective conversion price (in dollars per share) | $ / shares	$ 17.41
130% of the conversion price (in dollars per share) | $ / shares	$ 22.63
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%
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	$ 20,790
Interest expense [Abstract]
Principal amount of repurchased debt	12,288
Net carrying value of repurchased debt	4,770
Convertible Senior Debentures, Due 2042 [Member]
Debt Instruments [Abstract]
Convertible Debt, Noncurrent	0			923
Interest expense [Abstract]
Principal amount of repurchased debt	2,168
Net carrying value of repurchased debt	924
Convertible Senior Notes, Due 2025 [Member]
Debt Instruments [Abstract]
Convertible Debt, Noncurrent	$ 498,629			495,203
Issuance date	Jun. 12, 2018
Debt maturity date	Jun. 15, 2025	Jun. 15, 2025
Cash coupon rate	2.25%
Nonconvertible debt borrowing rate at issuance	5.50%
Effective conversion rate	31.7536
Effective conversion price (in dollars per share) | $ / shares	$ 31.49
130% of the conversion price (in dollars per share) | $ / shares	$ 40.94
Debt instrument percentage of conversion price	130.00%
Debt instrument percentage of sales price of common stock	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	$ 600,000
Interest expense [Abstract]
Contractual coupon interest	3,375		0
Non-cash amortization of debt discount	3,426		0
Non-cash amortization of deferred financing costs	454		0
Non-cash change in value of derivative liability	0		0
Total interest expense related to the debentures	7,255		0
Convertible Senior Debentures [Member]
Interest expense [Abstract]
Contractual coupon interest	148		3,235
Non-cash amortization of debt discount	64		1,309
Non-cash amortization of deferred financing costs	2		47
Non-cash change in value of derivative liability	(18)		161
Total interest expense related to the debentures	196		$ 4,752
Convertible Debt [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	621,140			636,556
Unamortized discount	(114,306)			(127,149)
Embedded derivative	24			70
Carrying value of liability component	506,858			509,477
Equity component - net carrying value	94,029			100,354
Convertible Debt [Member] | Convertible Senior Notes, Due 2025 [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	600,000			600,000
Unamortized discount	(101,371)			(104,797)
Embedded derivative	0			0
Carrying value of liability component	498,629			495,203
Equity component - net carrying value	85,262			85,262
Convertible Debt [Member] | Convertible Senior Debentures [Member]
Liability and equity components of convertible debentures [Abstract]
Principal amount of debt	21,140			36,556
Unamortized discount	(12,935)			(22,352)
Embedded derivative	24			70
Carrying value of liability component	8,229			14,274
Equity component - net carrying value	$ 8,767			$ 15,092

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance	$ (6,791)
Other comprehensive income before reclassifications	(9,989)
Tax effect	0
Other comprehensive income before reclassifications, net of tax	(9,989)
Amounts reclassified out of AOCI	2,064
Tax effect	(607)
Amounts reclassified out of AOCI, net of tax	1,457
Net other comprehensive income	(8,532)	$ 28,631
Ending Balance	(15,323)
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	(58,291)
Other comprehensive income before reclassifications	0
Tax effect	0
Other comprehensive income before reclassifications, net of tax	0
Amounts reclassified out of AOCI	2,064
Tax effect	(607)
Amounts reclassified out of AOCI, net of tax	1,457
Net other comprehensive income	1,457
Ending Balance	(56,834)
Currency Translation Adjustment [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance	51,500
Other comprehensive income before reclassifications	(9,989)
Tax effect	0
Other comprehensive income before reclassifications, net of tax	(9,989)
Amounts reclassified out of AOCI	0
Tax effect	0
Amounts reclassified out of AOCI, net of tax	0
Net other comprehensive income	(9,989)
Ending Balance	41,511
Accumulated Other Comprehensive Income (Loss) [Member]
Cumulative balance of each component of other comprehensive income (loss) and income tax effects [Roll Forward]
Beginning Balance	(6,791)
Net other comprehensive income	(8,532)	$ 28,631
Ending Balance	$ (15,323)

Pensions and Other Postretire_3

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Defined Benefit Pension Plans [Member] | U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	$ 0	$ 0
Interest cost	424	371
Expected return on plan assets	0	0
Amortization of prior service cost (credit)	36	36
Amortization of losses (gains)	118	159
Curtailment and settlement losses	0	0
Net periodic benefit cost	578	566
Defined Benefit Pension Plans [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	852	948
Interest cost	1,291	1,242
Expected return on plan assets	(490)	(488)
Amortization of prior service cost (credit)	51	55
Amortization of losses (gains)	1,359	1,604
Curtailment and settlement losses	505	462
Net periodic benefit cost	3,568	3,823
Other Postretirement Benefits [Member] | U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	35	34
Interest cost	77	68
Amortization of prior service cost (credit)	0	(37)
Amortization of losses (gains)	(32)	(10)
Net periodic benefit cost	80	55
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member]
Components of net periodic pension cost [Abstract]
Net service cost	72	75
Interest cost	30	30
Amortization of prior service cost (credit)	0	0
Amortization of losses (gains)	27	27
Net periodic benefit cost	$ 129	$ 132

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 30, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 3,536	$ 2,483
Unrecognized Compensation Cost		$ 5,669
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
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 3,359	2,269
Unrecognized Compensation Cost		$ 5,669
Weighted Average Remaining Amortization Periods		1 year
Number of units [Abstract]
Outstanding (in shares)		904,000
Granted (in shares)		314,000
Vested (in shares)	[1]	(349,000)
Cancelled or forfeited (in shares)		0
Outstanding (in shares)		869,000
Expected to vest (in shares)		855,000
Weighted Average Grant-date Fair Value per Unit [Abstract]
Outstanding (in dollars per share)		$ 14.77
Granted (in dollars per share)		19.85
Vested (in dollars per share)	[1]	11.50
Cancelled or forfeited (in dollars per share)		0
Outstanding (in dollars per share)		$ 17.92
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 177	$ 214
Unrecognized Compensation Cost		$ 0
Weighted Average Remaining Amortization Periods		0 years
Number of units [Abstract]
Outstanding (in shares)		170,000
Granted (in shares)		10,000
Dividend equivalents issued (in shares)		1,000
Outstanding (in shares)		181,000
Weighted Average Grant-date Fair Value per Unit [Abstract]
Granted (in dollars per share)		$ 17.72
Scheduled to Vest January 1, 2020 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		167,000
Expected to vest (in shares)		167,000
Not expected to vest (in shares)		0
Scheduled to Vest January 1, 2021 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		141,000
Expected to vest (in shares)		141,000
Not expected to vest (in shares)		0
Scheduled to Vest January 1, 2022 [Member] | Performance Vested Restricted Stock Units [Member]
Number of units [Abstract]
Outstanding (in shares)		174,000
Expected to vest (in shares)		174,000
Not expected to vest (in shares)		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
	Mar. 30, 2019USD ($)Segment	Mar. 31, 2018USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	5
Net revenues	$ 745,159	$ 716,795
Gross profit	211,159	205,300
Unallocated Selling, General, and Administrative Expenses	(103,424)	(101,238)
Operating income	107,735	104,062
Unallocated Other Income (Expense)	(7,787)	(12,043)
Consolidated Income Before Taxes	99,948	92,019
Distributors [Member]
Segment Reporting Information [Line Items]
Net revenues	411,560	404,060
OEMs [Member]
Segment Reporting Information [Line Items]
Net revenues	282,636	264,050
EMS Companies [Member]
Segment Reporting Information [Line Items]
Net revenues	50,963	48,685
Industrial [Member]
Segment Reporting Information [Line Items]
Net revenues	281,590	280,212
Automotive [Member]
Segment Reporting Information [Line Items]
Net revenues	214,786	208,394
Telecommunications [Member]
Segment Reporting Information [Line Items]
Net revenues	53,280	45,924
Computing [Member]
Segment Reporting Information [Line Items]
Net revenues	47,508	47,431
Consumer Products [Member]
Segment Reporting Information [Line Items]
Net revenues	34,049	37,259
Power Supplies [Member]
Segment Reporting Information [Line Items]
Net revenues	30,127	34,243
Military and Aerospace [Member]
Segment Reporting Information [Line Items]
Net revenues	47,561	35,214
Medical [Member]
Segment Reporting Information [Line Items]
Net revenues	36,258	28,118
Asia [Member]
Segment Reporting Information [Line Items]
Net revenues	259,726	285,478
Europe [Member]
Segment Reporting Information [Line Items]
Net revenues	278,899	267,382
Americas [Member]
Segment Reporting Information [Line Items]
Net revenues	206,534	163,935
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	178,069	172,178
Operating Segments [Member] | MOSFETS [Member]
Segment Reporting Information [Line Items]
Net revenues	137,341	127,506
Gross profit	36,059	32,022
Operating income	26,678	22,558
Operating Segments [Member] | Diodes [Member]
Segment Reporting Information [Line Items]
Net revenues	167,840	167,017
Gross profit	43,492	43,200
Operating income	38,128	37,931
Operating Segments [Member] | Optoelectronic Components [Member]
Segment Reporting Information [Line Items]
Net revenues	60,562	71,958
Gross profit	16,017	27,233
Operating income	11,710	22,794
Operating Segments [Member] | Resistors & Inductors [Member]
Segment Reporting Information [Line Items]
Net revenues	260,471	244,046
Gross profit	85,869	78,530
Operating income	76,987	70,002
Operating Segments [Member] | Capacitors [Member]
Segment Reporting Information [Line Items]
Net revenues	118,945	106,268
Gross profit	29,722	24,315
Operating income	24,566	18,893
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Unallocated Selling, General, and Administrative Expenses	(70,334)	(68,116)
Unallocated Other Income (Expense)	$ (7,787)	$ (12,043)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Numerator [Abstract]
Net earnings attributable to Vishay stockholders	$ 75,459	$ 62,366
Denominator [Abstract]
Weighted average shares (in shares)	144,375	144,160
Outstanding phantom stock units (in shares)	179	167
Adjusted weighted average shares - basic (in shares)	144,554	144,327
Effect of dilutive securities [Abstract]
Convertible and exchangeable debt instruments (in shares)	237	14,610
Restricted stock units (in shares)	498	565
Dilutive potential common shares (in shares)	735	15,175
Denominator for diluted earnings per share [Abstract]
Adjusted weighted average shares - diluted	145,289	159,502
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.52	$ 0.43
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.52	$ 0.39
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Principal amount of convertible subordinated notes redeemed	$ 22,695	$ 0
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)	19,052	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)	$ 31.49
Convertible Senior Debentures, Due 2041 [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)	$ 17.41
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)	315	307
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)	$ 12.71

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Dec. 31, 2018
Assets [Abstract]
Held-to-maturity Securities, Transferred Security, at Carrying Value	$ 0
Held-to-maturity Securities, Unrecognized Holding Gain	0
Held-to-maturity Securities, Unrecognized Holding Loss	0
Liabilities [Abstract]
Long-term debt, fair value	586,200	$ 577,200
Carrying value of long-term debt, excluding derivative liabilities	506,834	509,407
Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	47,849	41,770
Available for sale securities	4,295	4,309
Fair value assets	52,144	46,079
Liabilities [Abstract]
Fair value liabilities	(24)	(70)
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	31,479	26,278
Available for sale securities	4,295	4,309
Fair value assets	35,774	30,587
Liabilities [Abstract]
Fair value liabilities	0	0
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	16,370	15,492
Available for sale securities	0	0
Fair value assets	16,370	15,492
Liabilities [Abstract]
Fair value liabilities	0	0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets [Abstract]
Assets held in rabbi trusts	0	0
Available for sale securities	0	0
Fair value assets	0	0
Liabilities [Abstract]
Fair value liabilities	(24)	(70)
Convertible Debentures, Due 2040 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	(1)
Convertible Debentures, Due 2040 [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	0
Convertible Debentures, Due 2040 [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	0
Convertible Debentures, Due 2040 [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	(1)
Convertible Debentures, Due 2041 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	(24)	(67)
Convertible Debentures, Due 2041 [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	0
Convertible Debentures, Due 2041 [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	0	0
Convertible Debentures, Due 2041 [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative	$ (24)	(67)
Convertible Debentures, Due 2042 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative		(2)
Convertible Debentures, Due 2042 [Member] | Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative		0
Convertible Debentures, Due 2042 [Member] | Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative		0
Convertible Debentures, Due 2042 [Member] | Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities [Abstract]
Embedded derivative		$ (2)