Vishay Intertechnology (VSH) 10-Q 26 Oct 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	9 Months Ended
	Sep. 30, 2017	Oct. 23, 2017	Jul. 01, 2017
Entity Information [Line Items]
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	103,730
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,237,000,000
Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		131,874,587
Class B Convertible Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		12,129,227

Consolidated Condensed Balance

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 575,385	$ 471,781
Short-term investments	668,185	626,627
Accounts receivable, net	329,422	274,027
Inventories:
Finished goods	131,367	109,075
Work in process	178,173	162,311
Raw materials	128,036	109,859
Total inventories	437,576	381,245
Prepaid expenses and other current assets	112,394	110,792
Total current assets	2,122,962	1,864,472
Property and equipment, at cost:
Land	91,905	89,753
Buildings and improvements	595,628	570,932
Machinery and equipment	2,399,972	2,283,222
Construction in progress	63,766	71,777
Allowance for depreciation	(2,298,431)	(2,166,813)
Property, Plant and Equipment, Net, Total	852,840	848,871
Goodwill	142,545	141,407
Other intangible assets, net	73,154	84,463
Other assets	142,753	138,588
Total assets	3,334,254	3,077,801
Current liabilities:
Notes payable to banks	25	3
Trade accounts payable	181,988	174,107
Payroll and related expenses	138,616	114,576
Other accrued expenses	151,883	149,131
Income taxes	18,085	19,033
Total current liabilities	490,597	456,850
Long-term debt less current portion	356,938	357,023
Deferred income taxes	289,526	286,797
Other liabilities	67,712	59,725
Accrued pension and other postretirement costs	273,851	257,789
Total liabilities	1,478,624	1,418,184
Redeemable convertible debentures	252,889	88,659
Vishay stockholders' equity
Common stock	13,200	13,385
Class B convertible common stock	1,213	1,213
Capital in excess of par value	1,753,369	1,952,988
(Accumulated deficit) retained earnings	(177,075)	(307,417)
Accumulated other comprehensive income (loss)	10,158	(94,652)
Total Vishay stockholders' equity	1,600,865	1,565,517
Noncontrolling interests	1,876	5,441
Total equity	1,602,741	1,570,958
Total liabilities, temporary equity, and equity	$ 3,334,254	$ 3,077,801

Consolidated Condensed Statemen

Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 677,883	$ 591,955	$ 1,929,033	$ 1,752,612
Costs of products sold	488,610	438,054	1,405,922	1,315,274
Gross profit	189,273	153,901	523,111	437,338
Selling, general, and administrative expenses	93,701	93,916	278,865	276,455
Restructuring and severance costs	3,244	1,197	5,194	12,139
Impairment of Intangible Assets	0	1,559	0	1,559
Operating income	92,328	57,229	239,052	147,185
Other income (expense):
Interest expense	(6,938)	(6,165)	(20,804)	(18,901)
Other	798	(380)	1,151	2,655
Gain on early extinguishment of debt			0	4,597
Loss on disposal of equity affiliate			(7,060)	0
Nonoperating Income (Expense), Total	(6,140)	(6,545)	(26,713)	(11,649)
Income before taxes	86,188	50,684	212,339	135,536
Income tax expense	21,605	14,088	54,398	37,559
Net earnings	64,583	36,596	157,941	97,977
Less: net earnings attributable to noncontrolling interests	179	156	628	437
Net earnings attributable to Vishay stockholders	$ 64,404	$ 36,440	$ 157,313	$ 97,540
Basic earnings per share attributable to Vishay stockholders	$ 0.44	$ 0.25	$ 1.08	$ 0.66
Diluted earnings per share attributable to Vishay stockholders	$ 0.41	$ 0.24	$ 1.01	$ 0.65
Weighted average shares outstanding - basic	145,728	146,924	146,128	147,470
Weighted average shares outstanding - diluted	156,701	149,894	155,626	150,125
Cash dividends per share	$ 0.0625	$ 0.0625	$ 0.1875	$ 0.1875

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 64,583	$ 36,596	$ 157,941	$ 97,977
Other comprehensive income (loss), net of tax
Pension and postretirement actuarial items	1,292	1,923	4,843	5,448
Foreign currency translation adjustment	28,149	8,585	98,965	18,633
Unrealized gain (loss) on available-for-sale securities	220	318	1,002	1,664
Other comprehensive income (loss)	29,661	10,826	104,810	25,745
Comprehensive income (loss)	94,244	47,422	262,751	123,722
Less: comprehensive income attributable to noncontrolling interests	179	156	628	437
Comprehensive income (loss) attributable to Vishay stockholders	$ 94,065	$ 47,266	$ 262,123	$ 123,285

Consolidated Condensed Stateme5

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Operating activities
Net earnings	$ 157,941	$ 97,977
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	121,319	119,143
(Gain) loss on disposal of property and equipment	(106)	(1,373)
Accretion of interest on convertible debentures	3,703	3,425
Inventory write-offs for obsolescence	12,157	17,085
Impairment of goodwill and long-lived assets	0	1,559
Deferred income taxes	9,115	(1,750)
Non-cash loss on disposal of equity affiliate	7,060	0
Gain on early extinguishment of debt	0	(4,597)
Other	6,531	(4,944)
Net change in operating assets and liabilities, net of effects of businesses acquired	(71,875)	(13,455)
Net cash provided by operating activities	245,845	213,070
Investing activities
Capital expenditures	(84,790)	(81,346)
Proceeds from sale of property and equipment	1,484	1,241
Purchase of short-term investments	(598,937)	(472,938)
Maturity of short-term investments	610,573	491,867
Other investing activities	(6,663)	2,886
Net cash provided by (used in) investing activities	(78,333)	(58,290)
Financing activities
Principal payments on long-term debt and capital leases	0	(34,044)
Net proceeds (payments) on revolving credit lines	(5,000)	(41,000)
Common stock repurchase	(37,564)	(16,981)
Net changes in short-term borrowings	22	(626)
Proceeds from stock options exercised	1,260	0
Distributions to noncontrolling interests	(1,140)	(707)
Acquisition of noncontrolling interests	(4,100)	0
Cash withholding taxes paid when shares withheld for vested equity awards	(1,971)	(442)
Other financing activities	(1,255)	0
Net cash provided by (used in) financing activities	(77,076)	(121,403)
Effect of exchange rate changes on cash and cash equivalents	13,168	2,703
Net increase (decrease) in cash and cash equivalents	103,604	36,080
Cash and cash equivalents at beginning of period	471,781	475,507
Cash and cash equivalents at end of period	575,385	511,587
Common Stock [Member]
Financing activities
Dividends and Interest Paid	(25,054)	(25,329)
Class B Convertible Common Stock [Member]
Financing activities
Dividends and Interest Paid	$ (2,274)	$ (2,274)

Consolidated Condensed Stateme6

Consolidated Condensed Statement of Equity - USD ($) $ in Thousands	Common Stock	Class B Convertible Common Stock [Member]	Capital In Excess of Par Value	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Total Vishay Stockholders' Equity	Noncontrolling Interest	Total
Cumulative effect of accounting change for adoption of ASU	$ 0	$ 0	$ 0	$ 386	$ 0	$ 386	$ 0	$ 386
Balance at Dec. 31, 2016	13,385	1,213	1,952,988	(307,417)	(94,652)	1,565,517	5,441	1,570,958
Net earnings	0	0	0	157,313	0	157,313	628	157,941
Other comprehensive income (loss)	0	0	0	0	104,810	104,810	0	104,810
Distributions to noncontrolling interests	0	0	0	0	0	0	(1,140)	(1,140)
Acquisition of noncontrolling interests	0	0	(1,047)	0	0	(1,047)	(3,053)	(4,100)
Share repurchase	(213)	0	(37,351)	0	0	(37,564)	0	(37,564)
Temporary equity reclassification	0	0	(164,230)	0	0	(164,230)	0	(164,230)
Restricted stock issuances	20	0	(1,991)	0	0	(1,971)	0	(1,971)
Dividends declared	0	0	29	(27,357)	0	(27,328)	0	(27,328)
Stock compensation expense	0	0	3,719	0	0	3,719	0	3,719
Stock options exercised	8	0	1,252	0	0	1,260	0	1,260
Balance at Sep. 30, 2017	$ 13,200	$ 1,213	$ 1,753,369	$ (177,075)	$ 10,158	$ 1,600,865	$ 1,876	$ 1,602,741

Consolidated Condensed Stateme7

Consolidated Condensed Statement of Equity (Parenthetical)	9 Months Ended
	Sep. 30, 2017$ / sharesshares
Consolidated Condensed Statement of Equity [Abstract]
Restricted stock issuances (in shares)	200,688
Stock repurchase (in shares)	2,127,183
Stock options exercised (in shares)	77,334
Common Stock, Dividends, Per Share, Cash Paid | $ / shares	$ 0.1875

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
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, 2016. The results of operations for the fiscal quarter and nine fiscal months ended September 30, 2017 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 2017 end on April 1, 2017, July 1, 2017, September 30, 2017, and December 31, 2017, respectively. The four fiscal quarters in 2016 ended on April 2, 2016, July 2, 2016, October 1, 2016, and December 31, 2016, respectively. Recently Adopted Accounting Guidance In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting Recently Issued Accounting Guidance In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Reclassifications In addition to the changes due to the retrospective adoption of certain aspects of new accounting guidance described above, certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Restructuring and Related Activ

Restructuring and Related Activities	9 Months Ended
	Sep. 30, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities	Note 2 – Restructuring and Related Activities The Company places a strong emphasis on controlling its costs and combats general price inflation by continuously improving its efficiency and operating performance. When the ongoing cost containment activities are not adequate, the Company takes actions to maintain its cost competitiveness. The Company incurred significant restructuring costs in its past to reduce its cost structure. Historically, the Company's primary cost reduction technique was through the transfer of production from high-labor-cost countries to lower-labor-cost countries. Since 2013, the Company's cost reduction programs have primarily focused on reducing fixed costs, including selling, general, and administrative expenses. In 2013, the Company announced various cost reduction programs. These programs were substantially implemented by the end of the first fiscal quarter of 2016, with some additional costs incurred in the remainder of 2016. Many of the severance costs were recognized ratably over the required stay periods. In November 2016, the Company announced an extension of one of these programs. In 2015, the Company announced additional global cost reduction programs. These programs include a facility closure in the Netherlands. The cash costs of these programs, primarily severance, are expected to aggregate to approximately $30,000. Complete implementation of these programs is expected to occur before the end of 2017. The following table summarizes restructuring and related expenses which were recognized and reported on a separate line in the accompanying consolidated condensed statements of operations: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 MOSFETs Enhanced Competitiveness Program $ 2,463 $ 675 $ 2,911 $ 5,700 Global Cost Reduction Programs 781 986 2,283 6,903 Modules Production Transfer Program - (464 ) - (464 ) Total $ 3,244 $ 1,197 $ 5,194 $ 12,139 MOSFETs Enhanced Competitiveness Program Over a period of approximately 2 years and in a series of discrete steps, the manufacture of wafers for a substantial share of products was transferred into a more cost-efficient fab. As a consequence, certain other manufacturing previously occurring in-house was transferred to third-party foundries. This transfer of production was substantially completed by the end of the first fiscal quarter of 2016. Employees generally were required to remain with the Company during the production transfer period. Accordingly, the Company accrued these severance costs ratably over the respective employees' remaining service periods. The Company has incurred and may continue to incur other exit costs associated with the production transfer, including certain contract termination costs. As a result of a review of the financial results and outlook for the Company's MOSFETs segment following the completion of production transfers, in November 2016, the Company determined to implement further cost reductions for the MOSFETs segment. In November 2016, the Company announced an extension of the MOSFETs Enhanced Competitiveness Program. The revised program includes various cost reduction initiatives, primarily the transfer of all remaining manufacturing operations at its Santa Clara, California facility to other Vishay facilities or third-party subcontractors. The Company expects to incur cash charges of approximately $7,000 to $8,000, primarily related to severance, to implement these additional steps. The total cash charges for the MOSFETs Enhanced Competitiveness Program are expected to be $26,000 to $27,000. The Company expects to maintain its R&D and management presence in the Silicon Valley area, even after the cessation of manufacturing operations there. The following table summarizes the activity to date related to this program: Expense recorded in 2013 $ 2,328 Cash paid (267 ) Balance at December 31, 2013 $ 2,061 Expense recorded in 2014 6,025 Cash paid (856 ) Balance at December 31, 2014 $ 7,230 Expense recorded in 2015 5,367 Cash paid (426 ) Foreign currency translation 1 Balance at December 31, 2015 $ 12,172 Expense recorded in 2016 9,744 Cash paid (15,686 ) Foreign currency translation 2 Balance at December 31, 2016 $ 6,232 Expense recorded in 2017 2,911 Cash paid (5,897 ) Balance at September 30, 2017 $ 3,246 Severance benefits are generally paid in a lump sum at cessation of employment. Other exit costs of $380 are included in the expenses incurred in 2017 in the table above. The current portion of the liability is $2,586 and is included in other accrued expenses in the accompanying consolidated condensed balance sheets. The non-current portion of the liability is included in other liabilities in the accompanying consolidated condensed balance sheets. Voluntary Separation / Retirement Program The voluntary separation / early retirement program was offered to employees worldwide who were eligible because they met job classification, age, and years-of-service criteria as of October 31, 2013. The program benefits varied by country and job classification, but generally included a cash loyalty bonus based on years of service. All employees eligible for the program have left the Company. These employees generally were not aligned with any particular segment. The effective separation / retirement date for most employees who accepted the offer was June 30, 2014 or earlier, with a few exceptions to allow for a transition period. The Company recorded $13,373 of expenses for this program, primarily in 2013 and 2014. Substantially all amounts related to this program have been paid as of September 30, 2017. Global Cost Reduction Programs The global cost reduction programs announced in 2015 include a plan to reduce selling, general, and administrative costs company-wide, and targeted streamlining and consolidation of production for certain product lines within its Capacitors and Resistors & Inductors segments. The following table summarizes the activity to date related to this program: Expense recorded in 2015 $ 13,753 Cash paid (986 ) Foreign currency translation (150 ) Balance at December 31, 2015 $ 12,617 Expense recorded in 2016 9,918 Cash paid (16,237 ) Foreign currency translation (34 ) Balance at December 31, 2016 $ 6,264 Expense recorded in 2017 2,283 Cash paid (5,779 ) Foreign currency translation 319 Balance at September 30, 2017 $ 3,087 The following table summarizes the expense recognized by segment related to this program: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Diodes $ (13 ) $ 210 $ - $ 788 Optoelectronic Components - - 242 953 Resistors & Inductors 468 641 1,403 3,163 Capacitors 88 36 334 459 Unallocated Selling, General, and Administrative Expenses 238 99 304 1,540 Total $ 781 $ 986 $ 2,283 $ 6,903 Severance benefits are generally paid in a lump sum at cessation of employment. Other exit costs of $550 are included in the expenses incurred in 2017 in the tables above. The current portion of the liability is $2,478 and is included in other accrued expenses in the accompanying consolidated condensed balance sheets. The non-current portion of the liability is included in other liabilities in the accompanying consolidated condensed balance sheets.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Taxes [Abstract]
Income Taxes	Note 3 – 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 September 30, 2017 and October 1, 2016 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. Income tax expense for the fiscal quarter and nine fiscal months ended September 30, 2017 includes $892 and $3,100, respectively, for the periodic remeasurement of the deferred tax liability recorded for the cash repatriation program compared to $1,402 and $3,388 for the fiscal quarter and nine fiscal months ended October 1, 2016, respectively. The cash repatriation program is expected to occur over several years, and the deferred tax liability is based on the available sources of cash, applicable tax rates, and other factors and circumstances, as of each respective balance sheet date. Changes in the underlying facts and circumstances result in changes in the deferred tax liability balance, which are recorded as tax benefit or expense. During the second fiscal quarter of 2017, the Company repatriated $38,000 pursuant to this program. During the nine fiscal months ended September 30, 2017, the liabilities for unrecognized tax benefits decreased by $2,463 on a net basis, due to payments and settlements, partially offset by increases for tax positions taken in the current period, interest, and foreign currency effects.

Long-Term Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2017
Long-Term Debt [Abstract]
Long-Term Debt	Note 4 – Long-Term Debt Long-term debt consists of the following: September 30, 2017 December 31, 2016 Credit facility $ 138,000 $ 143,000 Convertible senior debentures, due 2040 109,864 108,120 Convertible senior debentures, due 2041 56,372 55,442 Convertible senior debentures, due 2042 62,247 61,341 Deferred financing costs (9,545 ) (10,880 ) 356,938 357,023 Less current portion - - $ 356,938 $ 357,023 Convertible Senior Debentures Vishay currently has three issuances of convertible senior debentures outstanding with generally congruent terms. The quarterly cash dividend program of the Company results in adjustments to the conversion rate and effective conversion price for each issuance of the Company's convertible senior debentures effective as of the ex-dividend date of each cash dividend. The following table summarizes some key facts and terms regarding the three series of outstanding convertible senior debentures following the adjustment made to the conversion rate of the debentures on the ex-dividend date of the September 28, 2017 dividend payment: Due 2040 Due 2041 Due 2042 Issuance date November 9, 2010 May 13, 2011 May 31, 2012 Maturity date November 15, 2040 May 15, 2041 June 1, 2042 Principal amount $ 275,000 $ 150,000 $ 150,000 Cash coupon rate (per annum) 2.25 % 2.25 % 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 8.00 % 8.375 % 7.50 % Conversion rate effective September 14, 2017 (per $1 principal amount) 76.9650 56.1650 90.4924 Effective conversion price effective September 14, 2017 (per share) $ 12.99 $ 17.80 $ 11.05 130% of the conversion price (per share) $ 16.89 $ 23.14 $ 14.37 Call date November 20, 2020 May 20, 2021 June 7, 2022 Prior to three months before the maturity date, the holders may only convert their debentures under the following circumstances: (1) during any fiscal quarter after the first full quarter subsequent to issuance, if the sale price of Vishay common stock reaches 130% of the conversion price for a specified period; (2) the trading price of the debentures falls below 98% of the product of the sale price of Vishay's common stock and the conversion rate for a specified period; (3) Vishay calls any or all of the debentures for redemption, at any time prior to the close of business on the third scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. The convertible debentures due 2042 became convertible subsequent to the December 31, 2016 evaluation of the conversion criteria, remained convertible subsequent to the April 1, 2017 and July 1, 2017 evaluations, and remain convertible subsequent to the September 30, 2017 evaluation, due to the sale price of Vishay's common stock exceeding 130% of the conversion price for the applicable periods in the fourth fiscal quarter of 2016 and first, second, and third fiscal quarters of 2017. The convertible debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria, due to the sale price of Vishay's common stock exceeding 130% of the conversion price for the applicable periods in the third fiscal quarter of 2017. The debentures due 2040 and due 2042 will remain convertible until December 31, 2017, 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 senior debentures, to repay the principal amounts of the convertible senior debentures 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 debentures due 2040 and due 2042 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 debentures due 2040 and due 2042 continues to be classified as a non-current liability on the consolidated condensed balance sheets. 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 debentures are reflected in the Company's consolidated condensed balance sheets as follows: Principal amount of the debentures Unamortized discount Embedded derivative Carrying value of liability component Equity component (including temporary equity) - net carrying value September 30, 2017 Due 2040 $ 275,000 (165,432 ) 296 $ 109,864 $ 110,094 Due 2041 $ 150,000 (93,900 ) 272 $ 56,372 $ 62,246 Due 2042 $ 150,000 (87,916 ) 163 $ 62,247 $ 57,874 Total $ 575,000 $ (347,248 ) $ 731 $ 228,483 $ 230,214 December 31, 2016 Due 2040 $ 275,000 (167,273 ) 393 $ 108,120 $ 110,094 Due 2041 $ 150,000 (94,843 ) 285 $ 55,442 $ 62,246 Due 2042 $ 150,000 (88,835 ) 176 $ 61,341 $ 57,874 Total $ 575,000 $ (350,951 ) $ 854 $ 224,903 $ 230,214 Interest is payable on the debentures 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 debentures and under certain other circumstances beginning ten years subsequent to issuance. Interest expense related to the debentures 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 debentures September 30, 2017 Due 2040 $ 1,547 626 22 (53 ) $ 2,142 Due 2041 $ 844 321 11 (21 ) $ 1,155 Due 2042 $ 844 312 13 (21 ) $ 1,148 Total $ 3,235 $ 1,259 $ 46 $ (95 ) $ 4,445 October 1, 2016 Due 2040 $ 1,547 579 22 (115 ) $ 2,033 Due 2041 $ 844 296 11 (102 ) $ 1,049 Due 2042 $ 844 291 13 (71 ) $ 1,077 Total $ 3,235 $ 1,166 $ 46 $ (288 ) $ 4,159 Interest expense related to the debentures is reflected on the consolidated condensed statements of operations for the nine fiscal months 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 debentures September 30, 2017 Due 2040 $ 4,641 1,841 66 (97 ) $ 6,451 Due 2041 $ 2,532 943 35 (13 ) $ 3,497 Due 2042 $ 2,532 919 40 (13 ) $ 3,478 Total $ 9,705 $ 3,703 $ 141 $ (123 ) $ 13,426 October 1, 2016 Due 2040 $ 4,641 1,702 66 (150 ) $ 6,259 Due 2041 $ 2,532 869 35 (136 ) $ 3,300 Due 2042 $ 2,532 854 40 (102 ) $ 3,324 Total $ 9,705 $ 3,425 $ 141 $ (388 ) $ 12,883

Other Income (Expense)

Other Income (Expense)	9 Months Ended
	Sep. 30, 2017
Other Income (Expense) [Abstract]
Other Income (Expense)	Note 5 – Other Income (Expense) In March 2017, the Company sold its 50% interest in an investment accounted for using the equity method, and recorded a loss of $7,060. The recorded loss includes Vishay's proportionate share of the investee's accumulated other comprehensive loss of $1,110, recognized upon discontinuation of the equity investment. The loss on disposal is not deductible for income tax purposes. There are certain contingencies pending resolution related to the investee, which may require adjustment to the amount of the recognized loss. The resolution of such additional contingencies is not expected to be material to the financial condition, results of operations, or cash flows of the Company.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss)	Note 6 – 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 Unrealized gain (loss) on available-for-sale securities Total Balance at January 1, 2017 $ (64,496 ) $ (31,266 ) 1,110 $ (94,652 ) Other comprehensive income before reclassifications - 98,965 1,542 $ 100,507 Tax effect - - (540 ) $ (540 ) Other comprehensive income before reclassifications, net of tax - 98,965 1,002 $ 99,967 Amounts reclassified out of AOCI 6,918 - - $ 6,918 Tax effect (2,075 ) - - $ (2,075 ) Amounts reclassified out of AOCI, net of tax 4,843 - - $ 4,843 Net other comprehensive income $ 4,843 $ 98,965 $ 1,002 $ 104,810 Balance at September 30, 2017 $ (59,653 ) $ 67,699 $ 2,112 $ 10,158 Reclassifications of pension and other post-retirement actuarial items out of AOCI are included in the computation of net periodic benefit cost. (See Note 7 for further information). Other comprehensive income (loss) includes Vishay's proportionate share of other comprehensive income (loss) of nonconsolidated subsidiaries accounted for under the equity method.

Pensions and Other Postretireme

Pensions and Other Postretirement Benefits	9 Months Ended
	Sep. 30, 2017
Pensions and Other Postretirement Benefits [Abstract]
Pensions and Other Postretirement Benefits	Note 7 – 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 third fiscal quarters of 2017 and 2016 for the Company's defined benefit pension plans: Fiscal quarter ended September 30, 2017 Fiscal quarter ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 948 $ - $ 790 Interest cost 411 1,247 2,945 1,361 Expected return on plan assets - (519 ) (2,825 ) (529 ) Amortization of prior service cost 36 19 36 12 Amortization of losses 82 1,595 1,650 1,196 Curtailment and settlement losses - 331 - 205 Net periodic benefit cost $ 529 $ 3,621 $ 1,806 $ 3,035 The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 30, 2017 and October 1, 2016 for the Company's defined benefit pension plans: Nine fiscal months ended September 30, 2017 Nine fiscal months ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 2,776 $ - $ 2,355 Interest cost 1,232 3,613 8,834 4,097 Expected return on plan assets - (1,543 ) (8,476 ) (1,605 ) Amortization of prior service cost 108 55 108 37 Amortization of losses 247 4,596 4,951 3,568 Curtailment and settlement losses - 983 - 601 Net periodic benefit cost $ 1,587 $ 10,480 $ 5,417 $ 9,053 Net periodic benefit cost in 2017 was significantly impacted by the termination and settlement of the Company's qualified U.S. pension plan in December 2016. The settlement resulted in the immediate recognition of previously unrecognized actuarial items related to the plan in 2016 that were recorded in accumulated other comprehensive income and were being amortized into net periodic pension cost. The Company contributed $4,409 to the Company's Taiwanese pension plans to improve the funded status of those plans in 2017. Other Postretirement Benefits The following table shows the components of the net periodic benefit cost for the third fiscal quarters of 2017 and 2016 for the Company's other postretirement benefit plans: Fiscal quarter ended September 30, 2017 Fiscal quarter ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 33 $ 71 $ 31 $ 67 Interest cost 77 26 85 36 Amortization of prior service (credit) (209 ) - (209 ) - Amortization of losses (gains) (24 ) 16 (8 ) 17 Net periodic benefit cost $ (123 ) $ 113 $ (101 ) $ 120 The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 30, 2017 and October 1, 2016 for the Company's other postretirement benefit plans: Nine fiscal months ended September 30, 2017 Nine fiscal months ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 99 $ 202 $ 94 $ 202 Interest cost 232 76 255 108 Amortization of prior service (credit) (627 ) - (627 ) - Amortization of losses (gains) (70 ) 45 (23 ) 51 Net periodic benefit cost $ (366 ) $ 323 $ (301 ) $ 361

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	Note 8 – 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 fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Company determines compensation cost for restricted stock units ("RSUs"), phantom stock units, and restricted stock based on the grant-date fair value of the underlying common stock adjusted for expected dividends paid over the required vesting period for non-participating awards. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award. The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Restricted stock units $ 676 $ 1,085 $ 3,556 3,254 Phantom stock units - - 163 117 Stock options - - - - Total $ 676 $ 1,085 $ 3,719 3,371 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 September 30, 2017 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 3,575 1.2 Phantom stock units - 0.0 Stock options - 0.0 Total $ 3,575 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 September 30, 2017 and changes during the nine fiscal months then ended are presented below (number of RSUs in thousands) Number of RSUs Weighted Average Grant-date Fair Value per Unit Outstanding: January 1, 2017 1,004 $ 12.74 Granted 304 15.52 Vested* (322 ) 13.54 Cancelled or forfeited - - Outstanding at September 30, 2017 986 $ 13.34 Expected to vest at September 30, 2017 986 * 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, 2018 202 - 202 January 1, 2019 213 - 213 January 1, 2020 167 - 167 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 September 30, 2017 and changes during the nine fiscal months then ended are presented below (number of phantom stock units in thousands) Number of units Grant-date Fair Value per Unit Outstanding: January 1, 2017 145 Granted 10 $ 16.25 Dividend equivalents issued 2 Outstanding at September 30, 2017 157 Stock Options In addition to stock options outstanding pursuant to the 2007 Program, during the periods presented, the Company had stock options outstanding under previous stockholder-approved stock option programs. These programs are more fully described in Note 12 to the Company's consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2016. No additional options may be granted pursuant to these programs. At December 31, 2016, there were approximately 77,000 options outstanding with a weighted average exercise price of $16.29. During the nine fiscal months ended September 30, 2017, the remaining approximately 77,000 options were exercised. The total intrinsic value of options exercised during the nine fiscal months ended September 30, 2017 was $20.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2017
Segment Information [Abstract]
Segment Information	Note 9 – 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 September 30, 2017: Product Sales $ 126,522 $ 160,711 $ 76,740 $ 217,593 $ 96,309 $ 677,875 Royalty Revenues - - - 8 - $ 8 Total Revenue $ 126,522 $ 160,711 $ 76,740 $ 217,601 $ 96,309 $ 677,883 Gross Profit $ 32,307 $ 42,942 $ 28,901 $ 65,541 $ 19,582 $ 189,273 Segment Operating Income $ 23,391 $ 37,991 $ 25,012 $ 58,267 $ 14,688 $ 159,349 Fiscal quarter ended October 1, 2016: Product Sales $ 101,687 $ 141,127 $ 72,801 $ 191,989 $ 84,299 $ 591,903 Royalty Revenues - - - 52 - $ 52 Total Revenue $ 101,687 $ 141,127 $ 72,801 $ 192,041 $ 84,299 $ 591,955 Gross Profit $ 16,443 $ 36,444 $ 24,250 $ 58,768 $ 17,996 $ 153,901 Segment Operating Income $ 7,493 $ 31,832 $ 20,340 $ 51,861 $ 13,210 $ 124,736 Nine fiscal months ended September 30, 2017: Product Sales $ 346,086 $ 461,323 $ 216,260 $ 627,116 $ 278,198 $ 1,928,983 Royalty Revenues - - - 50 - $ 50 Total Revenue $ 346,086 $ 461,323 $ 216,260 $ 627,166 $ 278,198 $ 1,929,033 Gross Profit $ 78,298 $ 121,601 $ 76,668 $ 188,801 $ 57,743 $ 523,111 Segment Operating Income $ 51,789 $ 106,906 $ 63,401 $ 166,852 $ 42,988 $ 431,936 Nine fiscal months ended October 1, 2016: Product Sales $ 304,839 $ 418,629 $ 203,635 $ 568,122 $ 257,175 $ 1,752,400 Royalty Revenues - - - 212 - $ 212 Total Revenue $ 304,839 $ 418,629 $ 203,635 $ 568,334 $ 257,175 $ 1,752,612 Gross Profit $ 40,914 $ 106,364 $ 65,049 $ 171,808 $ 53,203 $ 437,338 Segment Operating Income $ 12,671 $ 90,025 $ 49,838 $ 147,315 $ 37,145 $ 336,994 Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Reconciliation: Segment Operating Income $ 159,349 $ 124,736 $ 431,936 $ 336,994 Restructuring and Severance Costs (3,244 ) (1,197 ) (5,194 ) (12,139 ) Impairment of Intangible Assets - (1,559 ) - (1,559 ) Unallocated Selling, General, and Administrative Expenses (63,777 ) (64,751 ) (187,690 ) (176,111 ) Consolidated Operating Income $ 92,328 $ 57,229 $ 239,052 $ 147,185 Unallocated Other Income (Expense) (6,140 ) (6,545 ) (26,713 ) (11,649 ) Consolidated Income (Loss) Before Taxes $ 86,188 $ 50,684 $ 212,339 $ 135,536

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Note 10 – Earnings Per Share The following table sets forth the computation of basic and diluted earnings (loss) per share attributable to Vishay stockholders (shares in thousands) Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Numerator: Numerator for basic earnings per share: Net earnings attributable to Vishay stockholders $ 64,404 $ 36,440 $ 157,313 $ 97,540 Interest savings assuming conversion of dilutive exchangeable notes, net of tax - - - 38 Numerator for diluted earnings per share: Net earnings attributable to Vishay stockholders - diluted $ 64,404 $ 36,440 $ 157,313 $ 97,578 Denominator: Denominator for basic earnings per share: Weighted average shares 145,572 146,781 145,973 147,327 Outstanding phantom stock units 156 143 155 143 Adjusted weighted average shares 145,728 146,924 146,128 147,470 Effect of dilutive securities: Convertible and exchangeable debt instruments 10,480 2,541 9,160 2,387 Restricted stock units 493 423 338 266 Other - 6 - 2 Dilutive potential common shares 10,973 2,970 9,498 2,655 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 156,701 149,894 155,626 150,125 Basic earnings per share attributable to Vishay stockholders $ 0.44 $ 0.25 $ 1.08 $ 0.66 Diluted earnings per share attributable to Vishay stockholders $ 0.41 $ 0.24 $ 1.01 $ 0.65 Diluted earnings (loss) per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands) Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Convertible notes: Convertible Senior Debentures, due 2040 - - - 13,750 Convertible Senior Debentures, due 2041 8,401 8,268 8,371 8,229 Weighted average employee stock options - 77 - 96 Weighted average other 379 415 514 545 In periods in which they are dilutive, if the potential common shares related to the exchangeable notes are included in the computation, the related interest savings, net of tax, assuming conversion/exchange is added to the net earnings used to compute earnings per share. The Company's convertible debt instruments are only convertible for specified periods upon the occurrence of certain events. The convertible debentures due 2042 became convertible subsequent to the December 31, 2016 evaluation of the conversion criteria, remained convertible subsequent to the April 1, 2017 and July 1, 2017 evaluations, and remain convertible subsequent to the September 30, 2017 evaluation. The convertible debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria. At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of the convertible senior debentures, due 2040, due 2041, and due 2042, in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the debentures 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 $12.99, 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 $17.80, 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 $11.05, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2042.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2017
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 11 – 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 September 30, 2017 Assets: Assets held in rabbi trusts $ 44,262 $ 28,240 $ 16,022 $ - Available for sale securities $ 4,511 4,511 - - $ 48,773 $ 32,751 $ 16,022 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (296 ) $ - $ - $ (296 ) Embedded derivative - convertible debentures due 2041 $ (272 ) - - (272 ) Embedded derivative - convertible debentures due 2042 $ (163 ) - - (163 ) $ (731 ) $ - $ - $ (731 ) December 31, 2016 Assets: Assets held in rabbi trusts $ 41,917 $ 27,297 14,620 $ - Available for sale securities $ 3,969 3,969 - - $ 45,886 $ 31,266 $ 14,620 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (393 ) $ - $ - $ (393 ) Embedded derivative - convertible debentures due 2041 $ (285 ) - - (285 ) Embedded derivative - convertible debentures due 2042 $ (176 ) - - (176 ) $ (854 ) $ - $ - $ (854 ) 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 available for sale investments in debt securities that are intended to fund a portion of its pension and other postretirement benefit obligations outside of the United States. The investments are valued based on quoted market prices on the last business day of the year. The fair value measurement of the investments is considered a Level 1 measurement within the fair value hierarchy. The convertible senior debentures, due 2040, due 2041, and due 2042, issued by the Company on November 9, 2010, May 13, 2011, and May 31, 2012, respectively, 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 Company enters into forward contracts with highly-rated financial institutions to mitigate the foreign currency risk associated with intercompany loans denominated in a currency other than the legal entity's functional currency. The notional amount of the forward contracts was $300,000 and $100,000 as of September 30, 2017 and December 31, 2016, respectively. The forward contracts are short-term in nature and are expected to be renewed at the Company's discretion until the intercompany loans are repaid. We have not designated the forward contracts as hedges for accounting purposes, and as such the change in the fair value of the contracts is recognized in the consolidated condensed statements of operations as a component of other income (expense). The Company estimates the fair value of the forward contracts based on applicable and commonly used pricing models using current market information and is considered a Level 2 measurement within the fair value hierarchy. The value of the forward contracts was immaterial as of September 30, 2017. The Company does not utilize derivatives or other financial instruments for trading or other speculative purposes. The fair value of the long-term debt, excluding the derivative liabilities and deferred financing costs, at September 30, 2017 and December 31, 2016 is approximately $963,100 and $860,600, respectively, compared to its carrying value, excluding the derivative liabilities and deferred financing costs, of $365,752 and $367,049, 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 September 30, 2017 and December 31, 2016, 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 September 30, 2017 and December 31, 2016, 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)	9 Months Ended
	Sep. 30, 2017
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 2017 end on April 1, 2017, July 1, 2017, September 30, 2017, and December 31, 2017, respectively. The four fiscal quarters in 2016 ended on April 2, 2016, July 2, 2016, October 1, 2016, and December 31, 2016, respectively.
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recently Issued Accounting Guidance In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Recently Adopted Accounting Guidance In March 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting

Income Taxes (Policies)

Income Taxes (Policies)	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 and October 1, 2016 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)	9 Months Ended
	Sep. 30, 2017
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 fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Company determines compensation cost for restricted stock units ("RSUs"), phantom stock units, and restricted stock 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)	9 Months Ended
	Sep. 30, 2017
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)	9 Months Ended
	Sep. 30, 2017
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 2042 became convertible subsequent to the December 31, 2016 evaluation of the conversion criteria, remained convertible subsequent to the April 1, 2017 and July 1, 2017 evaluations, and remain convertible subsequent to the September 30, 2017 evaluation. The convertible debentures due 2040 became convertible subsequent to the September 30, 2017 evaluation of the conversion criteria. At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of the convertible senior debentures, due 2040, due 2041, and due 2042, in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the debentures 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 $12.99, 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 $17.80, 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 $11.05, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2042.

Fair Value Measurements (Polici

Fair Value Measurements (Policies)	9 Months Ended
	Sep. 30, 2017
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.

Restructuring and Related Act25

Restructuring and Related Activities (Tables)	9 Months Ended
	Sep. 30, 2017
Restructuring and Related Activities [Abstract]
Restructuring and Related Expenses	The following table summarizes restructuring and related expenses which were recognized and reported on a separate line in the accompanying consolidated condensed statements of operations: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 MOSFETs Enhanced Competitiveness Program $ 2,463 $ 675 $ 2,911 $ 5,700 Global Cost Reduction Programs 781 986 2,283 6,903 Modules Production Transfer Program - (464 ) - (464 ) Total $ 3,244 $ 1,197 $ 5,194 $ 12,139
MOSFETs Enhanced Competitiveness Program [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the activity to date related to this program: Expense recorded in 2013 $ 2,328 Cash paid (267 ) Balance at December 31, 2013 $ 2,061 Expense recorded in 2014 6,025 Cash paid (856 ) Balance at December 31, 2014 $ 7,230 Expense recorded in 2015 5,367 Cash paid (426 ) Foreign currency translation 1 Balance at December 31, 2015 $ 12,172 Expense recorded in 2016 9,744 Cash paid (15,686 ) Foreign currency translation 2 Balance at December 31, 2016 $ 6,232 Expense recorded in 2017 2,911 Cash paid (5,897 ) Balance at September 30, 2017 $ 3,246
Global Cost Reduction Program [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the activity to date related to this program: Expense recorded in 2015 $ 13,753 Cash paid (986 ) Foreign currency translation (150 ) Balance at December 31, 2015 $ 12,617 Expense recorded in 2016 9,918 Cash paid (16,237 ) Foreign currency translation (34 ) Balance at December 31, 2016 $ 6,264 Expense recorded in 2017 2,283 Cash paid (5,779 ) Foreign currency translation 319 Balance at September 30, 2017 $ 3,087
Restructuring expenses by segment [Table Text Block]	The following table summarizes the expense recognized by segment related to this program: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Diodes $ (13 ) $ 210 $ - $ 788 Optoelectronic Components - - 242 953 Resistors & Inductors 468 641 1,403 3,163 Capacitors 88 36 334 459 Unallocated Selling, General, and Administrative Expenses 238 99 304 1,540 Total $ 781 $ 986 $ 2,283 $ 6,903

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2017
Long-Term Debt [Abstract]
Schedule of long-term debt instruments	Long-term debt consists of the following: September 30, 2017 December 31, 2016 Credit facility $ 138,000 $ 143,000 Convertible senior debentures, due 2040 109,864 108,120 Convertible senior debentures, due 2041 56,372 55,442 Convertible senior debentures, due 2042 62,247 61,341 Deferred financing costs (9,545 ) (10,880 ) 356,938 357,023 Less current portion - - $ 356,938 $ 357,023
Key terms of the convertible debentures	The following table summarizes some key facts and terms regarding the three series of outstanding convertible senior debentures following the adjustment made to the conversion rate of the debentures on the ex-dividend date of the September 28, 2017 dividend payment: Due 2040 Due 2041 Due 2042 Issuance date November 9, 2010 May 13, 2011 May 31, 2012 Maturity date November 15, 2040 May 15, 2041 June 1, 2042 Principal amount $ 275,000 $ 150,000 $ 150,000 Cash coupon rate (per annum) 2.25 % 2.25 % 2.25 % Nonconvertible debt borrowing rate at issuance (per annum) 8.00 % 8.375 % 7.50 % Conversion rate effective September 14, 2017 (per $1 principal amount) 76.9650 56.1650 90.4924 Effective conversion price effective September 14, 2017 (per share) $ 12.99 $ 17.80 $ 11.05 130% of the conversion price (per share) $ 16.89 $ 23.14 $ 14.37 Call date November 20, 2020 May 20, 2021 June 7, 2022
Liability and equity of component of convertible senior debentures	The carrying values of the liability and equity components of the convertible debentures are reflected in the Company's consolidated condensed balance sheets as follows: Principal amount of the debentures Unamortized discount Embedded derivative Carrying value of liability component Equity component (including temporary equity) - net carrying value September 30, 2017 Due 2040 $ 275,000 (165,432 ) 296 $ 109,864 $ 110,094 Due 2041 $ 150,000 (93,900 ) 272 $ 56,372 $ 62,246 Due 2042 $ 150,000 (87,916 ) 163 $ 62,247 $ 57,874 Total $ 575,000 $ (347,248 ) $ 731 $ 228,483 $ 230,214 December 31, 2016 Due 2040 $ 275,000 (167,273 ) 393 $ 108,120 $ 110,094 Due 2041 $ 150,000 (94,843 ) 285 $ 55,442 $ 62,246 Due 2042 $ 150,000 (88,835 ) 176 $ 61,341 $ 57,874 Total $ 575,000 $ (350,951 ) $ 854 $ 224,903 $ 230,214
Convertible debentures, interest expense	Interest expense related to the debentures 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 debentures September 30, 2017 Due 2040 $ 1,547 626 22 (53 ) $ 2,142 Due 2041 $ 844 321 11 (21 ) $ 1,155 Due 2042 $ 844 312 13 (21 ) $ 1,148 Total $ 3,235 $ 1,259 $ 46 $ (95 ) $ 4,445 October 1, 2016 Due 2040 $ 1,547 579 22 (115 ) $ 2,033 Due 2041 $ 844 296 11 (102 ) $ 1,049 Due 2042 $ 844 291 13 (71 ) $ 1,077 Total $ 3,235 $ 1,166 $ 46 $ (288 ) $ 4,159 Interest expense related to the debentures is reflected on the consolidated condensed statements of operations for the nine fiscal months 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 debentures September 30, 2017 Due 2040 $ 4,641 1,841 66 (97 ) $ 6,451 Due 2041 $ 2,532 943 35 (13 ) $ 3,497 Due 2042 $ 2,532 919 40 (13 ) $ 3,478 Total $ 9,705 $ 3,703 $ 141 $ (123 ) $ 13,426 October 1, 2016 Due 2040 $ 4,641 1,702 66 (150 ) $ 6,259 Due 2041 $ 2,532 869 35 (136 ) $ 3,300 Due 2042 $ 2,532 854 40 (102 ) $ 3,324 Total $ 9,705 $ 3,425 $ 141 $ (388 ) $ 12,883

Accumulated Other Comprehensi27

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Abstract]
Summary of components of other comprehensive income	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 Unrealized gain (loss) on available-for-sale securities Total Balance at January 1, 2017 $ (64,496 ) $ (31,266 ) 1,110 $ (94,652 ) Other comprehensive income before reclassifications - 98,965 1,542 $ 100,507 Tax effect - - (540 ) $ (540 ) Other comprehensive income before reclassifications, net of tax - 98,965 1,002 $ 99,967 Amounts reclassified out of AOCI 6,918 - - $ 6,918 Tax effect (2,075 ) - - $ (2,075 ) Amounts reclassified out of AOCI, net of tax 4,843 - - $ 4,843 Net other comprehensive income $ 4,843 $ 98,965 $ 1,002 $ 104,810 Balance at September 30, 2017 $ (59,653 ) $ 67,699 $ 2,112 $ 10,158

Pensions and Other Postretire28

Pensions and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2017
Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost for pension and other postretirement benefit plans	The following table shows the components of the net periodic pension cost for the third fiscal quarters of 2017 and 2016 for the Company's defined benefit pension plans: Fiscal quarter ended September 30, 2017 Fiscal quarter ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 948 $ - $ 790 Interest cost 411 1,247 2,945 1,361 Expected return on plan assets - (519 ) (2,825 ) (529 ) Amortization of prior service cost 36 19 36 12 Amortization of losses 82 1,595 1,650 1,196 Curtailment and settlement losses - 331 - 205 Net periodic benefit cost $ 529 $ 3,621 $ 1,806 $ 3,035 The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 30, 2017 and October 1, 2016 for the Company's defined benefit pension plans: Nine fiscal months ended September 30, 2017 Nine fiscal months ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Net service cost $ - $ 2,776 $ - $ 2,355 Interest cost 1,232 3,613 8,834 4,097 Expected return on plan assets - (1,543 ) (8,476 ) (1,605 ) Amortization of prior service cost 108 55 108 37 Amortization of losses 247 4,596 4,951 3,568 Curtailment and settlement losses - 983 - 601 Net periodic benefit cost $ 1,587 $ 10,480 $ 5,417 $ 9,053
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost for pension and other postretirement benefit plans	The following table shows the components of the net periodic benefit cost for the third fiscal quarters of 2017 and 2016 for the Company's other postretirement benefit plans: Fiscal quarter ended September 30, 2017 Fiscal quarter ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 33 $ 71 $ 31 $ 67 Interest cost 77 26 85 36 Amortization of prior service (credit) (209 ) - (209 ) - Amortization of losses (gains) (24 ) 16 (8 ) 17 Net periodic benefit cost $ (123 ) $ 113 $ (101 ) $ 120 The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 30, 2017 and October 1, 2016 for the Company's other postretirement benefit plans: Nine fiscal months ended September 30, 2017 Nine fiscal months ended October 1, 2016 U.S. Plans Non-U.S. Plans U.S. Plans Non-U.S. Plans Service cost $ 99 $ 202 $ 94 $ 202 Interest cost 232 76 255 108 Amortization of prior service (credit) (627 ) - (627 ) - Amortization of losses (gains) (70 ) 45 (23 ) 51 Net periodic benefit cost $ (366 ) $ 323 $ (301 ) $ 361

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Summary of recognized stock-based compensation expense	The following table summarizes stock-based compensation expense recognized: Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Restricted stock units $ 676 $ 1,085 $ 3,556 3,254 Phantom stock units - - 163 117 Stock options - - - - Total $ 676 $ 1,085 $ 3,719 3,371
Schedule of unrecognized compensation cost, nonvested awards	The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at September 30, 2017 (amortization periods in years) Unrecognized Compensation Cost Weighted Average Remaining Amortization Periods Restricted stock units $ 3,575 1.2 Phantom stock units - 0.0 Stock options - 0.0 Total $ 3,575
Schedule of share-based compensation, restricted stock units award activity	RSU activity under the 2007 Program as of September 30, 2017 and changes during the nine fiscal months then ended are presented below (number of RSUs in thousands) Number of RSUs Weighted Average Grant-date Fair Value per Unit Outstanding: January 1, 2017 1,004 $ 12.74 Granted 304 15.52 Vested* (322 ) 13.54 Cancelled or forfeited - - Outstanding at September 30, 2017 986 $ 13.34 Expected to vest at September 30, 2017 986 * The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.
Schedule of share-based compensation arrangement by share-based units, vested and expected to vest	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, 2018 202 - 202 January 1, 2019 213 - 213 January 1, 2020 167 - 167
Schedule of share-based compensation, phantom stock units, Activity	Phantom stock unit activity under the phantom stock plan as of September 30, 2017 and changes during the nine fiscal months then ended are presented below (number of phantom stock units in thousands) Number of units Grant-date Fair Value per Unit Outstanding: January 1, 2017 145 Granted 10 $ 16.25 Dividend equivalents issued 2 Outstanding at September 30, 2017 157

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Information [Abstract]
Schedule of Segment Reporting Information, by Segment	The following tables set forth business segment information: MOSFETs Diodes Optoelectronic Components Resistors & Inductors Capacitors Total Fiscal quarter ended September 30, 2017: Product Sales $ 126,522 $ 160,711 $ 76,740 $ 217,593 $ 96,309 $ 677,875 Royalty Revenues - - - 8 - $ 8 Total Revenue $ 126,522 $ 160,711 $ 76,740 $ 217,601 $ 96,309 $ 677,883 Gross Profit $ 32,307 $ 42,942 $ 28,901 $ 65,541 $ 19,582 $ 189,273 Segment Operating Income $ 23,391 $ 37,991 $ 25,012 $ 58,267 $ 14,688 $ 159,349 Fiscal quarter ended October 1, 2016: Product Sales $ 101,687 $ 141,127 $ 72,801 $ 191,989 $ 84,299 $ 591,903 Royalty Revenues - - - 52 - $ 52 Total Revenue $ 101,687 $ 141,127 $ 72,801 $ 192,041 $ 84,299 $ 591,955 Gross Profit $ 16,443 $ 36,444 $ 24,250 $ 58,768 $ 17,996 $ 153,901 Segment Operating Income $ 7,493 $ 31,832 $ 20,340 $ 51,861 $ 13,210 $ 124,736 Nine fiscal months ended September 30, 2017: Product Sales $ 346,086 $ 461,323 $ 216,260 $ 627,116 $ 278,198 $ 1,928,983 Royalty Revenues - - - 50 - $ 50 Total Revenue $ 346,086 $ 461,323 $ 216,260 $ 627,166 $ 278,198 $ 1,929,033 Gross Profit $ 78,298 $ 121,601 $ 76,668 $ 188,801 $ 57,743 $ 523,111 Segment Operating Income $ 51,789 $ 106,906 $ 63,401 $ 166,852 $ 42,988 $ 431,936 Nine fiscal months ended October 1, 2016: Product Sales $ 304,839 $ 418,629 $ 203,635 $ 568,122 $ 257,175 $ 1,752,400 Royalty Revenues - - - 212 - $ 212 Total Revenue $ 304,839 $ 418,629 $ 203,635 $ 568,334 $ 257,175 $ 1,752,612 Gross Profit $ 40,914 $ 106,364 $ 65,049 $ 171,808 $ 53,203 $ 437,338 Segment Operating Income $ 12,671 $ 90,025 $ 49,838 $ 147,315 $ 37,145 $ 336,994
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Reconciliation: Segment Operating Income $ 159,349 $ 124,736 $ 431,936 $ 336,994 Restructuring and Severance Costs (3,244 ) (1,197 ) (5,194 ) (12,139 ) Impairment of Intangible Assets - (1,559 ) - (1,559 ) Unallocated Selling, General, and Administrative Expenses (63,777 ) (64,751 ) (187,690 ) (176,111 ) Consolidated Operating Income $ 92,328 $ 57,229 $ 239,052 $ 147,185 Unallocated Other Income (Expense) (6,140 ) (6,545 ) (26,713 ) (11,649 ) Consolidated Income (Loss) Before Taxes $ 86,188 $ 50,684 $ 212,339 $ 135,536

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted earnings (loss) per share attributable to Vishay stockholders (shares in thousands) Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Numerator: Numerator for basic earnings per share: Net earnings attributable to Vishay stockholders $ 64,404 $ 36,440 $ 157,313 $ 97,540 Interest savings assuming conversion of dilutive exchangeable notes, net of tax - - - 38 Numerator for diluted earnings per share: Net earnings attributable to Vishay stockholders - diluted $ 64,404 $ 36,440 $ 157,313 $ 97,578 Denominator: Denominator for basic earnings per share: Weighted average shares 145,572 146,781 145,973 147,327 Outstanding phantom stock units 156 143 155 143 Adjusted weighted average shares 145,728 146,924 146,128 147,470 Effect of dilutive securities: Convertible and exchangeable debt instruments 10,480 2,541 9,160 2,387 Restricted stock units 493 423 338 266 Other - 6 - 2 Dilutive potential common shares 10,973 2,970 9,498 2,655 Denominator for diluted earnings per share: Adjusted weighted average shares - diluted 156,701 149,894 155,626 150,125 Basic earnings per share attributable to Vishay stockholders $ 0.44 $ 0.25 $ 1.08 $ 0.66 Diluted earnings per share attributable to Vishay stockholders $ 0.41 $ 0.24 $ 1.01 $ 0.65
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Diluted earnings (loss) per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands) Fiscal quarters ended Nine fiscal months ended September 30, 2017 October 1, 2016 September 30, 2017 October 1, 2016 Convertible notes: Convertible Senior Debentures, due 2040 - - - 13,750 Convertible Senior Debentures, due 2041 8,401 8,268 8,371 8,229 Weighted average employee stock options - 77 - 96 Weighted average other 379 415 514 545

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 Assets: Assets held in rabbi trusts $ 44,262 $ 28,240 $ 16,022 $ - Available for sale securities $ 4,511 4,511 - - $ 48,773 $ 32,751 $ 16,022 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (296 ) $ - $ - $ (296 ) Embedded derivative - convertible debentures due 2041 $ (272 ) - - (272 ) Embedded derivative - convertible debentures due 2042 $ (163 ) - - (163 ) $ (731 ) $ - $ - $ (731 ) December 31, 2016 Assets: Assets held in rabbi trusts $ 41,917 $ 27,297 14,620 $ - Available for sale securities $ 3,969 3,969 - - $ 45,886 $ 31,266 $ 14,620 $ - Liabilities: Embedded derivative - convertible debentures due 2040 $ (393 ) $ - $ - $ (393 ) Embedded derivative - convertible debentures due 2041 $ (285 ) - - (285 ) Embedded derivative - convertible debentures due 2042 $ (176 ) - - (176 ) $ (854 ) $ - $ - $ (854 )

Restructuring and Related Act33

Restructuring and Related Activities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	$ 3,244	$ 1,197	$ 5,194	$ 12,139
MOSFETs Enhanced Competitiveness Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	2,586		2,586
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	2,463	675	2,911	5,700	$ 9,744	$ 5,367	$ 6,025	$ 2,328
Cash paid			(5,897)		(15,686)	(426)	(856)	(267)
Foreign currency translation					2	1
Balance at end of period	$ 3,246		3,246		6,232	12,172	7,230	$ 2,061
Balance at beginning of period			6,232	12,172	12,172	7,230	$ 2,061
Term of restructuring program	2 years
Other Exit Costs			380
MOSFETs Enhanced Competitiveness Program [Member] | Minimum [Member]
Restructuring Reserve [Roll Forward]
Expected Restructuring Costs	$ 26,000		26,000
MOSFETs Enhanced Competitiveness Program [Member] | Maximum [Member]
Restructuring Reserve [Roll Forward]
Expected Restructuring Costs	27,000		27,000
Voluntary Separation/Retirement Program [Member]
Restructuring Reserve [Roll Forward]
Restructuring cost incurred to date	13,373		13,373
Modules Product Transfer [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	0	(464)	0	(464)
Global Cost Reduction Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	2,478		2,478
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	781	986	2,283	6,903	9,918	13,753
Cash paid			(5,779)		(16,237)	(986)
Foreign currency translation			319		(34)	(150)
Balance at end of period	$ 3,087		3,087		6,264	$ 12,617
Balance at beginning of period			6,264	12,617	$ 12,617
Term of restructuring program	27 months
Expected Restructuring Costs	$ 30,000		30,000
Other Exit Costs			550
Global Cost Reduction Program [Member] | Diodes Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	(13)	210	0	788
Global Cost Reduction Program [Member] | Optoelectronic Components Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	0	0	242	953
Global Cost Reduction Program [Member] | Resistors And Inductors Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	468	641	1,403	3,163
Global Cost Reduction Program [Member] | Capacitors Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	88	36	334	459
Global Cost Reduction Program [Member] | Unallocated Amount to Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring and severance costs	$ 238	$ 99	304	$ 1,540
MOSFETs Enhanced Competitiveness Program Extension [Member]
Restructuring Reserve [Roll Forward]
Term of restructuring program	15 months
MOSFETs Enhanced Competitiveness Program Extension [Member] | Minimum [Member]
Restructuring Reserve [Roll Forward]
Expected Restructuring Costs	$ 7,000		7,000
MOSFETs Enhanced Competitiveness Program Extension [Member] | Maximum [Member]
Restructuring Reserve [Roll Forward]
Expected Restructuring Costs	$ 8,000		$ 8,000

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Income Taxes [Abstract]
Decrease in liabilities for unrecognized tax benefits			$ 2,463
Effect on Income Tax Expense (Benefit) [Line Items]
Cash repatriated during the current period			38,000
Remeasurement of repatriation deferred tax liability [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Deferred Other Tax Expense (Benefit)	$ 892	$ 1,402	$ 3,100	$ 3,388

Long-Term Debt (Details)

Long-Term Debt (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)$ / shares	Oct. 01, 2016USD ($)	Sep. 30, 2017USD ($)$ / shares	Oct. 01, 2016USD ($)	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Credit facility	$ 138,000		$ 138,000		$ 143,000
Deferred Financing Costs	(9,545)		(9,545)		(10,880)
Long-term debt	356,938		356,938		357,023
Less current portion	0		0		0
Long-term debt, less current portion	356,938		356,938		357,023
Debt Instruments [Abstract]
Principal amount of debt	$ 575,000		$ 575,000		575,000
Debt instrument percentage of conversion price (in hundredths)			130.00%
Debt instrument, Percentage of sale price of common stock (in hundredths)	98.00%		98.00%
Principal payments on long-term debt and capital leases			$ 0	$ (34,044)
Liability and equity components of convertible debentures [Abstract]
Principal amount of the debentures	$ 575,000		575,000		575,000
Unamortized discount	(347,248)		(347,248)		(350,951)
Embedded derivative	731		731		854
Carrying value of liability component	228,483		228,483		224,903
Equity component - net carrying value	230,214		230,214		230,214
Interest expense related to debentures [Abstract]
Contractual coupon interest	3,235	$ 3,235	9,705	9,705
Non-cash amortization of debt discount	1,259	1,166	3,703	3,425
Non-cash amortization of deferred financing costs	46	46	141	141
Non-cash change in value of derivative liability	(95)	(288)	(123)	(388)
Total interest expense related to the debentures	4,445	4,159	13,426	12,883
Convertible Senior Debentures, Due 2040 [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent	109,864		$ 109,864		108,120
Debt Instruments [Abstract]
Issuance date			Nov. 9, 2010
Debt maturity date			Nov. 15, 2040
Principal amount of debt	$ 275,000		$ 275,000		275,000
Stated rate of interest on debt (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)	8.00%		8.00%
Debt conversion rate	76.9650
Debt effective conversion price | $ / shares	$ 12.99		$ 12.99
Debt Instrument, Convertible, Stock Price Trigger | $ / shares			$ 16.89
Convertible senior debentures call date	Nov. 20, 2020
Liability and equity components of convertible debentures [Abstract]
Principal amount of the debentures	$ 275,000		$ 275,000		275,000
Unamortized discount	(165,432)		(165,432)		(167,273)
Embedded derivative	296		296		393
Carrying value of liability component	109,864		109,864		108,120
Equity component - net carrying value	110,094		110,094		110,094
Interest expense related to debentures [Abstract]
Contractual coupon interest	1,547	1,547	4,641	4,641
Non-cash amortization of debt discount	626	579	1,841	1,702
Non-cash amortization of deferred financing costs	22	22	66	66
Non-cash change in value of derivative liability	(53)	(115)	(97)	(150)
Total interest expense related to the debentures	2,142	2,033	6,451	6,259
Convertible Senior Debentures, Due 2041 [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent	56,372		$ 56,372		55,442
Debt Instruments [Abstract]
Issuance date			May 13, 2011
Debt maturity date			May 15, 2041
Principal amount of debt	$ 150,000		$ 150,000		150,000
Stated rate of interest on debt (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)	8.375%		8.375%
Debt conversion rate	56.1650
Debt effective conversion price | $ / shares	$ 17.80		$ 17.80
Debt Instrument, Convertible, Stock Price Trigger | $ / shares			$ 23.14
Convertible senior debentures call date	May 20, 2021
Liability and equity components of convertible debentures [Abstract]
Principal amount of the debentures	$ 150,000		$ 150,000		150,000
Unamortized discount	(93,900)		(93,900)		(94,843)
Embedded derivative	272		272		285
Carrying value of liability component	56,372		56,372		55,442
Equity component - net carrying value	62,246		62,246		62,246
Interest expense related to debentures [Abstract]
Contractual coupon interest	844	844	2,532	2,532
Non-cash amortization of debt discount	321	296	943	869
Non-cash amortization of deferred financing costs	11	11	35	35
Non-cash change in value of derivative liability	(21)	(102)	(13)	(136)
Total interest expense related to the debentures	1,155	1,049	3,497	3,300
Convertible Senior Debentures, Due 2042 [Member]
Debt Instrument [Line Items]
Convertible Debt, Noncurrent	62,247		$ 62,247		61,341
Debt Instruments [Abstract]
Issuance date			May 31, 2012
Debt maturity date			Jun. 1, 2042
Principal amount of debt	$ 150,000		$ 150,000		150,000
Stated rate of interest on debt (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)	7.50%		7.50%
Debt conversion rate	90.4924
Debt effective conversion price | $ / shares	$ 11.05		$ 11.05
Debt Instrument, Convertible, Stock Price Trigger | $ / shares			$ 14.37
Convertible senior debentures call date	Jun. 7, 2022
Liability and equity components of convertible debentures [Abstract]
Principal amount of the debentures	$ 150,000		$ 150,000		150,000
Unamortized discount	(87,916)		(87,916)		(88,835)
Embedded derivative	163		163		176
Carrying value of liability component	62,247		62,247		61,341
Equity component - net carrying value	57,874		57,874		$ 57,874
Interest expense related to debentures [Abstract]
Contractual coupon interest	844	844	2,532	2,532
Non-cash amortization of debt discount	312	291	919	854
Non-cash amortization of deferred financing costs	13	13	40	40
Non-cash change in value of derivative liability	(21)	(71)	(13)	(102)
Total interest expense related to the debentures	$ 1,148	$ 1,077	$ 3,478	$ 3,324

Other Income (Expense) (Details

Other Income (Expense) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Schedule of Equity Method Investments [Line Items]
Loss on disposal of equity affiliate	$ 7,060	$ 0
Amounts reclassified out of AOCI, net of tax	4,843
Equity affiliate [Member]
Schedule of Equity Method Investments [Line Items]
Amounts reclassified out of AOCI, net of tax	$ 1,110

Accumulated Other Comprehensi37

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Accumulated Other Comprehensive Income [Line Items]
Beginning Balance			$ (94,652)
Other comprehensive income before reclassifications			100,507
Tax effect			(540)
Other comprehensive income before reclassifications, net of tax			99,967
Amounts reclassified out of AOCI			6,918
Tax effect of reclassification			(2,075)
Amounts reclassified out of AOCI, net of tax			4,843
Other comprehensive income (loss)	$ 29,661	$ 10,826	104,810	$ 25,745
Ending Balance	10,158		10,158
Unrealized Gain (Loss) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income [Line Items]
Beginning Balance			1,110
Other comprehensive income before reclassifications			1,542
Tax effect			(540)
Other comprehensive income before reclassifications, net of tax			1,002
Amounts reclassified out of AOCI			0
Tax effect of reclassification			0
Amounts reclassified out of AOCI, net of tax			0
Other comprehensive income (loss)			1,002
Ending Balance	2,112		2,112
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income [Line Items]
Beginning Balance			(31,266)
Other comprehensive income before reclassifications			98,965
Tax effect			0
Other comprehensive income before reclassifications, net of tax			98,965
Amounts reclassified out of AOCI			0
Tax effect of reclassification			0
Amounts reclassified out of AOCI, net of tax			0
Other comprehensive income (loss)			98,965
Ending Balance	67,699		67,699
Pension and Other Post-Retirement Actuarial Items [Member]
Accumulated Other Comprehensive Income [Line Items]
Beginning Balance			(64,496)
Other comprehensive income before reclassifications			0
Tax effect			0
Other comprehensive income before reclassifications, net of tax			0
Amounts reclassified out of AOCI			6,918
Tax effect of reclassification			(2,075)
Amounts reclassified out of AOCI, net of tax			4,843
Other comprehensive income (loss)			4,843
Ending Balance	$ (59,653)		$ (59,653)

Pensions and Other Postretire38

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Republic of China (Taiwan) [Member]
Defined Benefit Plan Disclosure [Line Items]
Company pension contributions			$ 4,409
Defined Benefit Pension Plan [Member] | Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	$ 0	$ 0	0	$ 0
Interest cost	411	2,945	1,232	8,834
Expected return on plan assets	0	(2,825)	0	(8,476)
Amortization of prior service cost (credit)	36	36	108	108
Amortization of losses (gains)	82	1,650	247	4,951
Curtailments and settlements	0	0	0	0
Net periodic benefit cost	529	1,806	1,587	5,417
Defined Benefit Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	948	790	2,776	2,355
Interest cost	1,247	1,361	3,613	4,097
Expected return on plan assets	(519)	(529)	(1,543)	(1,605)
Amortization of prior service cost (credit)	19	12	55	37
Amortization of losses (gains)	1,595	1,196	4,596	3,568
Curtailments and settlements	331	205	983	601
Net periodic benefit cost	3,621	3,035	10,480	9,053
Other Postretirement Benefits [Member] | Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	33	31	99	94
Interest cost	77	85	232	255
Amortization of prior service cost (credit)	(209)	(209)	(627)	(627)
Amortization of losses (gains)	(24)	(8)	(70)	(23)
Net periodic benefit cost	(123)	(101)	(366)	(301)
Other Postretirement Benefits [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	71	67	202	202
Interest cost	26	36	76	108
Amortization of prior service cost (credit)	0	0	0	0
Amortization of losses (gains)	16	17	45	51
Net periodic benefit cost	$ 113	$ 120	$ 323	$ 361

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 676	$ 1,085	$ 3,719	$ 3,371
Unrecognized Compensation Cost		$ 3,575		$ 3,575
Expiration date of the 2007 stock incentive plan				May 20, 2024
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)		6,500,000		6,500,000
Stock Options Outstanding:
Balance				77,000
Balance (in dollars per share)				$ 16.29
Exercised (in shares)				(77,334)
Vested and expected to vest [Abstract]
Stock options exercised (in shares)				77,334
Intrinsic value under share based compensation scheme				$ 20
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 0	0	0	0
Unrecognized Compensation Cost		0		$ 0
Weighted Average Remaining Amortization Periods				0 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		676	1,085	$ 3,556	3,254
Unrecognized Compensation Cost		$ 3,575		$ 3,575
Weighted Average Remaining Amortization Periods				1 year 2 months 12 days
Equity Awards Other Than Options Outstanding:
Balance (in shares)				1,004,000
Balance (in dollars per share)				$ 12.74
Granted (in shares)				304,000
Granted (in dollars per share)				$ 15.52
Vested (in shares)	[1]			(322,000)
Vested (in dollars per share)	[1]			$ 13.54
Cancelled or forfeited (in shares)				0
Cancelled or forfeited (in dollars per share)				$ 0
Balance (in shares)		986,000		986,000
Balance (in dollars per share)		$ 13.34		$ 13.34
Expected to vest (in shares)		986,000		986,000
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized		$ 0	$ 0	$ 163	$ 117
Unrecognized Compensation Cost		$ 0		$ 0
Weighted Average Remaining Amortization Periods				0 years
Equity Awards Other Than Options Outstanding:
Balance (in shares)				145,000
Granted (in shares)				10,000
Granted (in dollars per share)				$ 16.25
Dividend equivalents issued				2,000
Balance (in shares)		157,000		157,000
Scheduled to Vest January 1, 2018 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)		202,000		202,000
Expected to vest (in shares)		202,000		202,000
Not expected to vest (in shares)		0		0
Scheduled to Vest January 1, 2019 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)		213,000		213,000
Expected to vest (in shares)		213,000		213,000
Not expected to vest (in shares)		0		0
Scheduled to Vest January 1, 2020 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)		167,000		167,000
Expected to vest (in shares)		167,000		167,000
Not expected to vest (in shares)		0		0
[1]	The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.

Segment Information (Details)

Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)	Oct. 01, 2016USD ($)	Sep. 30, 2017USD ($)Segment	Oct. 01, 2016USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment			5
Product Sales	$ 677,875	$ 591,903	$ 1,928,983	$ 1,752,400
Royalty Revenues	8	52	50	212
Total Revenue	677,883	591,955	1,929,033	1,752,612
Gross Margin	189,273	153,901	523,111	437,338
Segment Operating Income	159,349	124,736	431,936	336,994
Restructuring and severance Costs	(3,244)	(1,197)	(5,194)	(12,139)
Impairment of Intangible Assets	0	(1,559)	0	(1,559)
Operating income	92,328	57,229	239,052	147,185
Unallocated Other Income (Expense)	(6,140)	(6,545)	(26,713)	(11,649)
Income before taxes	86,188	50,684	212,339	135,536
MOSFETS Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	126,522	101,687	346,086	304,839
Royalty Revenues	0	0	0	0
Total Revenue	126,522	101,687	346,086	304,839
Gross Margin	32,307	16,443	78,298	40,914
Segment Operating Income	23,391	7,493	51,789	12,671
Diodes Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	160,711	141,127	461,323	418,629
Royalty Revenues	0	0	0	0
Total Revenue	160,711	141,127	461,323	418,629
Gross Margin	42,942	36,444	121,601	106,364
Segment Operating Income	37,991	31,832	106,906	90,025
Optoelectronic Components Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	76,740	72,801	216,260	203,635
Royalty Revenues	0	0	0	0
Total Revenue	76,740	72,801	216,260	203,635
Gross Margin	28,901	24,250	76,668	65,049
Segment Operating Income	25,012	20,340	63,401	49,838
Resistors And Inductors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	217,593	191,989	627,116	568,122
Royalty Revenues	8	52	50	212
Total Revenue	217,601	192,041	627,166	568,334
Gross Margin	65,541	58,768	188,801	171,808
Segment Operating Income	58,267	51,861	166,852	147,315
Capacitors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	96,309	84,299	278,198	257,175
Royalty Revenues	0	0	0	0
Total Revenue	96,309	84,299	278,198	257,175
Gross Margin	19,582	17,996	57,743	53,203
Segment Operating Income	14,688	13,210	42,988	37,145
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Segment Operating Income	(63,777)	(64,751)	(187,690)	(176,111)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Operating Income	159,349	124,736	431,936	336,994
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Restructuring and severance Costs	(3,244)	(1,197)	(5,194)	(12,139)
Impairment of Intangible Assets	0	(1,559)	0	(1,559)
Unallocated Other Income (Expense)	$ (6,140)	$ (6,545)	$ (26,713)	$ (11,649)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Numerator for basic earnings per share:
Net earnings attributable to Vishay stockholders	$ 64,404	$ 36,440	$ 157,313	$ 97,540
Adjustment to the numerator for continuing operations and net earnings:
Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax	0	0	0	38
Numerator for diluted earnings per share:
Net earnings attributable to Vishay stockholders - diluted	$ 64,404	$ 36,440	$ 157,313	$ 97,578
Denominator for basic earnings per share:
Weighted average shares	145,572	146,781	145,973	147,327
Outstanding phantom stock units	156	143	155	143
Adjusted weighted average shares (basic)	145,728	146,924	146,128	147,470
Effect of dilutive securities:
Convertible and exchangeable debt instruments	10,480	2,541	9,160	2,387
Restricted stock units	493	423	338	266
Other	0	6	0	2
Dilutive potential common shares	10,973	2,970	9,498	2,655
Denominator for diluted earnings per share:
Adjusted weighted average shares (diluted)	156,701	149,894	155,626	150,125
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.44	$ 0.25	$ 1.08	$ 0.66
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.41	$ 0.24	$ 1.01	$ 0.65
Convertible Senior Debentures, Due 2040 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount (in shares)	0	0	0	13,750
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)	$ 12.99		$ 12.99
Convertible Senior Debentures, Due 2041 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount (in shares)	8,401	8,268	8,371	8,229
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)	$ 17.80		$ 17.80
Convertible Senior Debentures, Due 2042 [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
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)	$ 11.05		$ 11.05
Weighted average employees stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount (in shares)	0	77	0	96
Weighted average other [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount (in shares)	379	415	514	545

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Assets:
Held-to-maturity Securities, Transferred Security, at Carrying Value	$ 0
Held-to-maturity Securities, Unrecognized Holding Gain	0
Other than Temporary Impairment Losses, Investments, Held-to-maturity Securities	0
Liabilities:
Embedded derivative	(731)	$ (854)
Long-term Debt, Fair Value	963,100	860,600
Carrying value of long-term debt, excluding derivative liabilities	365,752	367,049
Derivative, Notional Amount	300,000	100,000
Fair Value, Measurements, Recurring [Member]
Assets:
Assets held in rabbi trusts	44,262	41,917
Available for sale securities	4,511	3,969
Fair Value Assets	48,773	45,886
Liabilities:
Fair Value Liabilities	(731)	(854)
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Assets held in rabbi trusts	28,240	27,297
Available for sale securities	4,511	3,969
Fair Value Assets	32,751	31,266
Liabilities:
Fair Value Liabilities	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Assets held in rabbi trusts	16,022	14,620
Available for sale securities	0	0
Fair Value Assets	16,022	14,620
Liabilities:
Fair Value Liabilities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Assets:
Assets held in rabbi trusts	0	0
Available for sale securities	0	0
Fair Value Assets	0	0
Liabilities:
Fair Value Liabilities	(731)	(854)
Convertible Senior Debentures, Due 2040 [Member]
Liabilities:
Embedded derivative	(296)	(393)
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	(296)	(393)
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2040 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	(296)	(393)
Convertible Senior Debentures, Due 2041 [Member]
Liabilities:
Embedded derivative	(272)	(285)
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	(272)	(285)
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2041 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	(272)	(285)
Convertible Senior Debentures, Due 2042 [Member]
Liabilities:
Embedded derivative	(163)	(176)
Convertible Senior Debentures, Due 2042 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	(163)	(176)
Convertible Senior Debentures, Due 2042 [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2042 [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures, Due 2042 [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Liabilities:
Embedded derivative	$ (163)	$ (176)