Vishay Intertechnology (VSH) 10-Q 29 Oct 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	9 Months Ended
	Sep. 28, 2013	Jun. 29, 2013	Oct. 25, 2013	Oct. 25, 2013
			Common Stock [Member]	Class B Convertible Common Stock [Member]
Entity Information [Line Items]
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	103730
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$1,817,000,000
Entity Common Stock, Shares Outstanding			135,143,370	12,129,227
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	28-Sep-13

Consolidated_Condensed_Balance

Consolidated Condensed Balance Sheets (USD $)	Sep. 28, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$644,951	$697,595
Short-term investments	445,614	294,943
Accounts receivable, net	280,192	247,035
Inventories:
Finished goods	115,108	109,571
Work in process	198,356	177,350
Raw materials	135,394	120,728
Total inventories	448,858	407,649
Deferred income taxes	18,444	24,385
Prepaid expenses and other current assets	109,081	119,656
Total current assets	1,947,140	1,791,263
Property and equipment, at cost:
Land	93,267	92,348
Buildings and improvements	555,266	523,091
Machinery and equipment	2,290,660	2,163,182
Construction in progress	75,861	101,570
Allowance for depreciation	-2,112,012	-1,965,639
Property, Plant and Equipment, Net, Total	903,042	914,552
Goodwill	42,961	34,866
Other intangible assets, net	133,969	133,717
Other assets	141,452	141,879
Total assets	3,168,564	3,016,277
Current liabilities:
Notes payable to banks	6	6
Trade accounts payable	152,551	147,936
Payroll and related expenses	123,549	108,353
Other accrued expenses	152,501	148,660
Income taxes	14,151	7,215
Total current liabilities	442,758	412,170
Long-term debt less current portion	359,874	392,931
Deferred income taxes	135,802	129,379
Other liabilities	106,249	108,600
Accrued pension and other postretirement costs	329,494	344,961
Total liabilities	1,374,177	1,388,041
Vishay stockholders' equity
Common stock	13,514	13,114
Class B convertible common stock	1,213	1,213
Capital in excess of par value	2,052,997	1,999,901
(Accumulated deficit) retained earnings	-287,719	-380,678
Accumulated other comprehensive income (loss)	9,178	-10,222
Total Vishay stockholders' equity	1,789,183	1,623,328
Noncontrolling interests	5,204	4,908
Total equity	1,794,387	1,628,236
Total liabilities and equity	$3,168,564	$3,016,277

Consolidated_Condensed_Stateme

Consolidated Condensed Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$602,890	$572,781	$1,754,809	$1,699,527
Costs of products sold	459,670	439,227	1,331,998	1,281,645
Gross profit	143,220	133,554	422,811	417,882
Selling, general, and administrative expenses	90,067	89,095	273,941	262,348
Executive Compensation Charge (credit)	0	0	-1,778	0
Gain on Sale of Property	0	0	0	-12,153
Operating income	53,153	44,459	150,648	167,687
Other income (expense):
Interest expense	-5,797	-6,009	-17,107	-16,265
Other	556	2,726	1,455	1,940
Nonoperating Income (Expense), Total	-5,241	-3,283	-15,652	-14,325
Income before taxes	47,912	41,176	134,996	153,362
Income tax expense	15,043	18,687	41,501	50,968
Net earnings	32,869	22,489	93,495	102,394
Less: net earnings attributable to noncontrolling interests	150	209	536	631
Net earnings attributable to Vishay stockholders	$32,719	$22,280	$92,959	$101,763
Basic earnings per share attributable to Vishay stockholders	$0.23	$0.16	$0.65	$0.67
Diluted earnings per share attributable to Vishay stockholders	$0.22	$0.15	$0.61	$0.65
Weighted average shares outstanding - basic	144,937	143,273	144,012	150,978
Weighted average shares outstanding - diluted	151,890	150,118	151,471	157,770

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$32,869	$22,489	$93,495	$102,394
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	24,975	28,564	10,304	1,347
Pension and postretirement actuarial items	3,078	2,209	9,250	7,764
Unrealized gain (loss) on available-for-sale securities	60	603	-154	1,260
Other comprehensive income (loss)	28,113	31,376	19,400	10,371
Comprehensive income	60,982	53,865	112,895	112,765
Less: comprehensive income attributable to noncontrolling interests	150	209	536	631
Comprehensive income attributable to Vishay stockholders	$60,832	$53,656	$112,359	$112,134

Consolidated_Condensed_Stateme1

Consolidated Condensed Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012
Operating activities
Net earnings	$93,495	$102,394
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	125,611	125,149
(Gain) loss on disposal of property and equipment	118	-13,063
Accretion of interest on convertible debentures	2,709	2,160
Inventory write-offs for obsolescence	14,476	16,008
Other	-11,986	9,813
Net change in operating assets and liabilities, net of effects of businesses acquired	-44,862	-56,927
Net cash provided by operating activities	179,561	185,534
Investing activities
Capital expenditures	-91,591	-86,754
Proceeds from sale of property and equipment	3,866	7,770
Purchase of businesses, net of cash acquired	-23,034	-85,493
Purchase of short-term investments	-424,940	-268,286
Maturity of short-term investments	284,814	214,047
Other investing activities	1,246	-109
Net cash used in investing activities	-249,639	-218,825
Financing activities
Proceeds from long-term borrowings	0	150,000
Issuance costs	-4,558	-4,827
Common stock repurchase	0	-150,000
Principal payments on long-term debt and capital leases	-21	-21
Net proceeds (payments) on revolving credit lines	21,000	-69,000
Net changes in short-term borrowings	-142	-116
Proceeds from stock options exercised	0	174
Excess tax benefit from RSUs vested	456	0
Distributions to noncontrolling interests	-240	-240
Net cash provided by (used in) financing activities	16,495	-74,030
Effect of exchange rate changes on cash and cash equivalents	939	-4,505
Net decrease in cash and cash equivalents	-52,644	-111,826
Cash and cash equivalents at beginning of period	697,595	749,088
Cash and cash equivalents at end of period	$644,951	$637,262

Consolidated_Condensed_Stateme2

Consolidated Condensed Statement of Equity (USD $)	Common Stock	Class B Convertible Common Stock	Capital In Excess of Par Value	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Total Vishay Stockholders' Equity	Noncontrolling Interest	Total
In Thousands
Balance at Dec. 31, 2012	$13,114	$1,213	$1,999,901	($380,678)	($10,222)	$1,623,328	$4,908	$1,628,236
Net earnings	0	0	0	92,959	0	92,959	536	93,495
Other comprehensive income	0	0	0	0	19,400	19,400	0	19,400
Distributions to noncontrolling interests	0	0	0	0	0	0	-240	-240
Restricted stock issuances	34	0	-2,184	0	0	-2,150	0	-2,150
Stock compensation expense	0	0	-1,210	0	0	-1,210	0	-1,210
Issuance of common stock for exchangeable unsecured notes	366	0	56,034	0	0	56,400	0	56,400
Tax effects of stock plan	0	0	456	0	0	456	0	456
Balance at Sep. 28, 2013	$13,514	$1,213	$2,052,997	($287,719)	$9,178	$1,789,183	$5,204	$1,794,387

Consolidated_Condensed_Stateme3

Consolidated Condensed Statement of Equity (Parenthetical)	9 Months Ended
	Sep. 28, 2013
Consolidated Condensed Statement of Equity [Abstract]
Restricted stock issuances (in shares)	335,107
Stock options exercised (in shares)	0
Common shares issued for conversion of exchangeable notes	3,664,729

Basis_of_Presentation

Basis of Presentation	9 Months Ended
	Sep. 28, 2013
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, 2012.  The results of operations for the fiscal quarter and nine fiscal months ended September 28, 2013 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 2013 end on March 30, 2013, June 29, 2013, September 28, 2013, and December 31, 2013, respectively.  The four fiscal quarters in 2012 ended on March 31, 2012, June 30, 2012, September 29, 2012, and December 31, 2012, respectively.
	Recently Adopted Accounting Guidance
	In February 2013, the FASB issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220), Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The ASU adds new disclosure requirements for items reclassified out of accumulated other comprehensive income.  The ASU does not amend any existing requirements for reporting net income or other comprehensive income in the financial statements.  The ASU is effective for the Company for interim and annual periods beginning after January 1, 2013.  Vishay adopted the ASU on January 1, 2013.  The adoption of the ASU had no effect on the Company's financial position, results of operations, or liquidity.
	Reclassifications
	Certain prior period amounts have been reclassified to conform to the current financial statements presentation.

Acquisition_and_Divestiture_Ac

Acquisition and Divestiture Activities	9 Months Ended
	Sep. 28, 2013
Acquisition Activities [Abstract]
Acquisition Activities	Note 2 – Acquisition Activities
	As part of its growth strategy, the Company seeks to expand through targeted acquisitions of other manufacturers of electronic components that have established positions in major markets, reputations for product quality and reliability, and product lines with which the Company has substantial marketing and technical expertise.
	MCB Industrie S.A.
	On June 13, 2013, Vishay acquired MCB Industrie S.A. ("MCB Industrie") in France, a well-established manufacturer of specialty resistors and sensors, for $23,034, net of cash acquired.  The products and technology portfolio acquired is expected to enable Vishay to expand its presence in the European industrial market.  For financial reporting purposes, the results of operations for this business have been included in the Resistors & Inductors segment from June 13, 2013.  The inclusion of this business did not have a material impact on the Company's consolidated results for the fiscal quarter or nine fiscal months ended September 28, 2013.  Based on an estimate of their fair values, the Company allocated $5,433 of the purchase price to definite-lived intangible assets.  After allocating the purchase price to the assets acquired and liabilities assumed based on an estimation of their fair values at the date of acquisition, the Company recorded goodwill of $7,985 related to this acquisition.  The goodwill associated with this transaction is not deductible for income tax purposes.  The Company will test the goodwill for impairment at least annually in accordance with GAAP.
	Had this acquisition occurred as of the beginning of the periods presented in these consolidated condensed financial statements, the pro forma statements of operations would not be materially different than the consolidated condensed statements of operations presented.
	The remaining fluctuation in the goodwill account balance is due to foreign currency translation.

Restructuring_and_Related_Acti

Restructuring and Related Activities	9 Months Ended
	Sep. 28, 2013
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities	Note 3 – Restructuring and Related Activities
	Gain on Sale of Vacated Property
	On April 3, 2012, Vishay sold a property in Belgium vacated as a result of its restructuring activities in prior years for approximately $14,200. Vishay recognized a gain on the sale of the property of $12,153 within its statements of operations and proceeds from the sale of property and equipment of $3,406 within its statement of cash flows in the second fiscal quarter of 2012. The remaining proceeds are reported as proceeds from the sale of property and equipment within the statements of cash flows as the cash is received.
	Subsequent Events
	On October 28, 2013, the Company announced various cost reduction programs as part of its continuous efforts to improve efficiency and operating performance.
	The programs primarily focus on a plan to enhance the competitiveness of its MOSFETs segment and a voluntary separation / early retirement offer to certain employees Company-wide.  The Company also plans to implement two other smaller cost reduction programs concerning the manufacturing of products within its Diodes segment.  The cash costs for these programs, primarily severance, are expected to be approximately $26,000.  Complete implementation of all of the programs is expected to occur before the end of the first fiscal quarter of 2016.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 28, 2013
Income Taxes [Abstract]
Income Taxes	Note 4 – Income Taxes
	The provision for income taxes consists of provisions for federal, state, and foreign income taxes.  The effective tax rates for the periods ended September 28, 2013 and September 29, 2012 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.
	In July 2013, a new tax law was enacted in Israel which effectively increases the corporate income tax rate on certain types of income earned after January 1, 2014.  Accordingly, the Company's deferred tax assets in Israel were increased to reflect the higher rate and a one-time tax benefit of $2,867 was recorded in the consolidated condensed statement of operations during the fiscal quarter and nine fiscal months ended September 28, 2013.  As a result of the retroactive enactment of the American Taxpayer Relief Act of 2012, which was signed into law on January 2, 2013, the Company also recorded one-time tax benefits of $1,330 in the consolidated condensed statement of operations during the nine fiscal months ended September 28, 2013.
	During the nine fiscal months ended September 28, 2013, the liabilities for unrecognized tax benefits decreased by $7,311 on a net basis, principally due to payments and the expiration of statute of limitations offset by increases for tax positions taken in prior periods and interest.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 28, 2013
Long-Term Debt [Abstract]
Long-Term Debt	Note 5 – Long-Term Debt
	Long-term debt consists of the following:
		September 28,				December 31,
		2013				2012
	Credit facility	$	110,000			$	89,000
	Exchangeable unsecured notes, due 2102		38,642				95,042
	Convertible senior debentures, due 2040		101,319				100,166
	Convertible senior debentures, due 2041		51,978				51,399
	Convertible senior debentures, due 2042		57,935				57,324
			359,874				392,931
	Less current portion		-				-
		$	359,874			$	392,931
	Credit Facility
	The Company maintains a credit facility with a consortium of banks led by JPMorgan Chase Bank, N.A., as administrative agent (the "Credit Facility").  On August 8, 2013, the Company entered into an Amended and Restated Credit Agreement, which provides an aggregate commitment of $640,000 of revolving loans available until August 8, 2018.  The original credit agreement became effective December 1, 2010 and was scheduled to expire on December 1, 2015.  The Credit Facility, as amended and restated, also provides for the ability of Vishay to request up to $50,000 of incremental revolving commitments, subject to the satisfaction of certain conditions.
	Borrowings under the Credit Facility bear interest at the London Interbank Offered Rate ("LIBOR") plus an interest margin.  The applicable interest margin is based on the Company's leverage ratio.  Based on the Company's current leverage ratio, borrowings bear interest at LIBOR plus 1.75%.  The interest rate on the Company's borrowings will increase to LIBOR plus 2.00% if the Company's leverage ratio equals or exceeds 2.50 to 1 and will decrease to LIBOR plus 1.50% if the Company's leverage ratio decreases below 1.50 to 1.  Vishay is also required to pay facility fees on the entire commitment amount based on the Company's leverage ratio.  Based on the Company's current leverage ratio, the facility fee is 0.35% per annum.  Such facility fee will increase to 0.50% per annum if the Company's leverage ratio equals or exceeds 2.50 to 1 and will decrease to 0.30% per annum if the leverage ratio decreases below 1.50 to 1.
	The August 8, 2013 Amended and Restated Credit Agreement also removes certain restrictions related to the incurrence and repayment of certain intercompany indebtedness, mergers, liquidations, and transfers of ownership of wholly owned subsidiaries that were present in the original credit agreement.  These changes will enable the Company to streamline its complex subsidiary structure and provide greater operating flexibility.
	The borrowings under the Credit Facility are secured by a lien on substantially all assets, including accounts receivable, inventory, machinery and equipment, and general intangibles (but excluding real estate, intellectual property registered or licensed for use in, or arising under the laws of, any country other than the United States, assets located outside of the United States and deposit and securities accounts), of Vishay and certain significant subsidiaries located in the United States, and pledges of stock in certain significant domestic and foreign subsidiaries; and are guaranteed by certain significant subsidiaries. Certain of the Company's subsidiaries are permitted to borrow under the Credit Facility, subject to the satisfaction of specified conditions. Any borrowings by these subsidiaries under the Credit Facility are guaranteed by Vishay and certain subsidiaries. The Credit Facility also limits or restricts the Company and its subsidiaries, from, among other things, incurring indebtedness, incurring liens on its respective assets, making investments and acquisitions, making asset sales, and paying cash dividends and making other restricted payments, and requires the Company to comply with other covenants, including the maintenance of specific financial ratios.
	The Credit Facility permits the Company to repurchase shares of its common stock up to a permitted capacity, conditioned upon Vishay maintaining (i) a pro forma leverage ratio of 2.75 to 1.00, (ii) a pro forma interest expense coverage ratio of 2.00 to 1.00, and (iii) $300,000 of available liquidity, as defined in the Credit Facility.  The permitted capacity to repurchase shares of the Company's outstanding common stock under the Credit Facility increases each quarter by an amount equal to 20% of net income. At September 28, 2013, the Credit Facility allows the Company to repurchase up to $198,592 of its common stock. The amount and timing of any future stock repurchases remains subject to authorization of the Company's Board of Directors.
	The Credit Facility also contains customary events of default, including, but not limited to, failure to pay principal or interest, failure to pay or default under other material debt, material misrepresentation or breach of warranty, violation of certain covenants, a change of control, the commencement of bankruptcy proceedings, the insolvency of Vishay or certain of its significant subsidiaries, and the rendering of a judgment in excess of $25,000 against Vishay or certain of its significant subsidiaries. Upon the occurrence of an event of default under the Credit Facility, the Company's obligations under the credit facility may be accelerated and the lending commitments under the credit facility terminated.
	Exchangeable Unsecured Notes, due 2102
	On December 13, 2002, Vishay issued $105,000 in nominal (or principal) amount of its floating rate unsecured exchangeable notes due 2102 in connection with an acquisition. The notes are governed by a note instrument and a put and call agreement dated December 13, 2002. The notes may be put to Vishay in exchange for shares of its common stock and, under certain circumstances, may be called by Vishay for similar consideration.
	Under the terms of the put and call agreement, by reason of the spin-off of Vishay Precision Group, Inc. ("VPG"), Vishay was required to take action so that the existing notes are deemed exchanged as of the date of the spin-off, for a combination of new notes of Vishay reflecting a lower principal amount of the notes and new notes issued by VPG.
	Based on the relative trading prices of Vishay and VPG common stock on the ten trading days following the spin-off, Vishay retained the liability for an aggregate $95,042 principal amount of exchangeable notes effective July 6, 2010. The assumption of a portion of the liability by VPG was recorded as a reduction in parent net investment just prior to the completion of the spin-off.
	Under the terms of the put and call agreement the holders may at any time put the notes to Vishay in exchange for shares of Vishay's common stock, and Vishay may call the notes in exchange for cash or for shares of its common stock at any time after January 2, 2018.  Subsequent to the spin-off of VPG, the put/call rate of the Vishay notes is $15.39 per share of common stock.
	Effective August 26, 2013, a holder of the notes exercised its option to exchange $56,400 principal amount of the notes for 3,664,729 shares of Vishay common stock.  Following this transaction, Vishay had outstanding exchangeable unsecured notes with a principal amount of $38,642, which are exchangeable for an aggregate of 2,511,742 shares of Vishay common stock.
	Convertible Senior Debentures
	Vishay currently has three issuances of convertible senior debentures outstanding with generally congruent terms.  The following table summarizes some key facts and terms regarding the three series of outstanding convertible senior debentures:
		Due 2040				Due 2041				Due 2042
	Issuance date	9-Nov-10				13-May-11				31-May-12
	Maturity date		15-Nov-40			15-May-41				1-Jun-42
	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	%			8.375	%			7.5	%
	Initial conversion rate (per $1 principal amount)		72.0331				52.5659				84.6937
	Effective conversion price (per share)	$	13.88			$	19.02			$	11.81
	130% of the conversion price (per share)	$	18.04			$	24.73			$	15.35
	Call date		20-Nov-20			20-May-21				7-Jun-22
	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 - net carrying value
	28-Sep-13
	Due 2040	$	275,000				(174,110	)			429			$	101,319		$	110,094
	Due 2041	$	150,000				(98,321	)			299			$	51,978		$	62,246
	Due 2042	$	150,000				(92,274	)			209			$	57,935		$	57,874
	Total	$	575,000			$	(364,705	)		$	937			$	211,232		$	230,214
	31-Dec-12
	Due 2040	$	275,000				(175,456	)			622			$	100,166		$	110,094
	Due 2041	$	150,000				(99,000	)			399			$	51,399		$	62,246
	Due 2042	$	150,000				(92,958	)			282			$	57,324		$	57,874
	Total	$	575,000			$	(367,414	)		$	1,303			$	208,889		$	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
			28-Sep-13
			Due 2040		$	1,547				458				22			(30	)	$	1,997
			Due 2041		$	844				231				11			(13	)	$	1,073
			Due 2042		$	844				233				13			3		$	1,093
			Total		$	3,235			$	922			$	46		$	(40	)	$	4,163
			29-Sep-12
			Due 2040		$	1,547				423				22			47		$	2,039
			Due 2041		$	844				213				12			(19	)	$	1,050
			Due 2042		$	844				216				13			(13	)	$	1,060
			Total		$	3,235			$	852			$	47		$	15		$	4,149
	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
		28-Sep-13
		Due 2040		$	4,641				1,346				66			(193	)	$	5,860
		Due 2041		$	2,532				679				35			(100	)	$	3,146
		Due 2042		$	2,532				684				40			(73	)	$	3,183
		Total		$	9,705			$	2,709			$	141		$	(366	)	$	12,189
		29-Sep-12
		Due 2040		$	4,641				1,244				66			14		$	5,965
		Due 2041		$	2,532				626				36			15		$	3,209
		Due 2042		$	1,135				290				18			29		$	1,472
		Total		$	8,308			$	2,160			$	120		$	58		$	10,646

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 28, 2013
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, 2013	$	(178,956	)	$	167,461	$	1,273		$	(10,222	)
	Other comprehensive income before reclassifications		-			10,304		1,171		$	11,475
	Tax effect		-			-		(389	)	$	(389	)
	Other comprehensive income before reclassifications, net of tax		-			10,304		782		$	11,086
	Amounts reclassified out of AOCI		13,808			-		(1,408	)	$	12,400
	Tax effect		(4,558	)		-		472		$	(4,086	)
	Amounts reclassified out of AOCI, net of tax		9,250			-		(936	)	$	8,314
	Net comprehensive income	$	9,250		$	10,304	$	(154	)	$	19,400
	Balance at September 28, 2013	$	(169,706	)	$	177,765	$	1,119		$	9,178
	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).  The amount of unrealized gains (losses) on available-for-sale securities reclassified out of AOCI as a result of sales of securities held by the Company's rabbi trust used to fund a deferred compensation plan was $624 and $1,355, respectively, for the fiscal quarter and nine fiscal months ended September 28, 2013.  These reclassifications are recorded as a component of compensation expense within Selling, General, and Administrative expenses on our consolidated condensed statements of operations. The pre-tax amount of unrealized gains (losses) on available-for-sale securities reclassified out of AOCI as a result of sales of available-for-sale securities was $97 and $53, respectively, for the fiscal quarter and nine fiscal months ended September 28, 2013.  These reclassifications are recorded as a component of Other Income on our consolidated condensed statements of operations.  The tax effect of the reclassifications of unrealized gains (losses) on available-for-sale securities is recorded as a component of Income Tax Expense on our consolidated condensed statements of operations.
	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_Postretirem

Pensions and Other Postretirement Benefits	9 Months Ended
	Sep. 28, 2013
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.
	The following table shows the components of the net periodic pension cost for the third fiscal quarters of 2013 and 2012 for the Company's defined benefit pension plans:
		Fiscal quarter ended						Fiscal quarter ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Net service cost	$	-		$	864		$	-		$	800
	Interest cost		3,471			2,022			3,925			2,289
	Expected return on plan assets		(4,781	)		(510	)		(4,743	)		(416	)
	Amortization of prior service cost (credit)		244			(9	)		550			-
	Amortization of losses		3,733			832			3,142			409
	Net periodic benefit cost	$	2,667		$	3,199		$	2,874		$	3,082
	The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 28, 2013 and September 29, 2012 for the Company's defined benefit pension plans:
		Nine fiscal months ended						Nine fiscal months ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Net service cost	$	-		$	2,621		$	-		$	2,425
	Interest cost		10,412			6,076			11,775			7,007
	Expected return on plan assets		(14,343	)		(1,559	)		(14,229	)		(1,242	)
	Amortization of prior service cost (credit)		733			(26	)		1,650			-
	Amortization of losses		11,198			2,499			9,427			1,243
	Net periodic benefit cost	$	8,000		$	9,611		$	8,623		$	9,433
	The following table shows the components of the net periodic benefit cost for the third fiscal quarters of 2013 and 2012 for the Company's other postretirement benefit plans:
		Fiscal quarter ended						Fiscal quarter ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Service cost	$	28		$	74		$	19		$	62
	Interest cost		78			64			130			70
	Amortization of prior service (credit)		(200	)		-			(101	)		-
	Amortization of transition obligation		-			-			8			-
	Amortization of losses (gains)		1			-			(24	)		-
	Net periodic benefit cost	$	(93	)	$	138		$	32		$	132
	The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 28, 2013 and September 29, 2012 for the Company's other postretirement benefit plans:
		Nine fiscal months ended						Nine fiscal months ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Service cost	$	83		$	222		$	55		$	189
	Interest cost		235			191			391			214
	Amortization of prior service (credit)		(599	)		-			(305	)		-
	Amortization of transition obligation		-			-			24			-
	Amortization of losses (gains)		3			-			(72	)		-
	Net periodic benefit cost	$	(278	)	$	413		$	93		$	403

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 28, 2013
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.  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
		28-Sep-13			29-Sep-12		28-Sep-13			29-Sep-12
	Stock options	$	-		$	13	$	18		$	60
	Restricted stock units		382			1,128		(1,336	)		3,396
	Phantom stock units		-			-		108			93
	Total	$	382		$	1,141	$	(1,210	)	$	3,549
	The Company recognizes compensation cost for RSUs that are expected to vest and records cumulative adjustments in the period that the expectation changes.  Stock-based compensation for the nine fiscal months ended September 28, 2013, as presented in the table above, includes the material reversal of stock-based compensation expense recognized for the performance-based RSUs scheduled to vest on January 1, 2014 recorded in the second fiscal quarter of 2013.  $1,778 of these reversed costs had been originally reported as a separate line item upon cessation of employment of certain former executives in 2011, and accordingly, this adjustment is also reported as a separate line item in the consolidated condensed statements of operations.
	The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at September 28, 2013 (amortization periods in years):
		Unrecognized Compensation Cost			Weighted Average Remaining Amortization Periods
	Stock options	$	-			0
	Restricted stock units		12,432			1.4
	Phantom stock units		-			0
	Total	$	12,432
	2007 Stock Incentive Plan
	The Company's 2007 Stock Incentive Program (the "2007 Program") permits the grant of up to 3,000,000 shares of restricted stock, unrestricted stock, RSUs, and stock options, to officers, employees, and non-employee directors of the Company.  Such instruments are available for grant until May 22, 2017.
	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, 2012.  No additional options may be granted pursuant to these programs.
	At December 31, 2012 and September 28, 2013, there were 109,000 options outstanding with a weighted average exercise price of $15.24.  At September 28, 2013, the weighted average remaining contractual life of all outstanding options was 3.49 years.
	During the nine fiscal months ended September 28, 2013, 30,000 options vested.  At September 28, 2013, there were no unvested options outstanding.
	The pretax aggregate intrinsic value (the difference between the closing stock price on the last trading day of the third fiscal quarter of 2013 of $12.97 per share and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on September 28, 2013 is $8.  This amount changes based on changes in the market value of the Company's common stock.  During the nine fiscal months ended September 28, 2013, no options were exercised.
	Restricted Stock Units
	RSU activity under the 2007 Program as of September 28, 2013 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:
	1-Jan-13		1,316		$	12.53
	Granted		374			12.76
	Vested*		(500	)		9.82
	Cancelled or forfeited		-			-
	Outstanding at September 28, 2013		1,190		$	13.74
	Expected to vest at September 28, 2013		570
	________________________________________
	* 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 on January 1, 2014 and January 1, 2015 is fixed based on the full achievement of the defined target performance criteria.  The number of performance-based RSUs that are scheduled to vest on January 1, 2016 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
	1-Jan-14	-		233	233
	1-Jan-15	-		276	276
	1-Jan-16	111		111	222
	Phantom Stock Plan
	The Company maintains a phantom stock plan for certain senior executives.  The plan authorizes the grant of up to 300,000 phantom stock units to the extent provided for in the Company's employment agreements with such senior 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.  The phantom stock units are fully vested at all times.
	Phantom stock unit activity under the phantom stock plan as of September 28, 2013 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:
	1-Jan-13		97
	Granted		10		$	10.75
	Redeemed for common stock		-
	Outstanding at September 28, 2013		107

Segment_Information

Segment Information	9 Months Ended
	Sep. 28, 2013
Segment Information [Abstract]
Segment Information	Note 9 – Segment Information
	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.
	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, asset write-downs, goodwill and indefinite-lived intangible asset impairments, inventory write-downs, gains or losses on purchase commitments, 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 following tables set forth business segment information:
		MOSFETs			Diodes			Optoelectronic Components			Resistors & Inductors			Capacitors		Total
	Fiscal quarter ended September 28, 2013:
	Product Sales	$	115,143		$	140,790		$	56,796		$	176,885		$	111,910	$	601,524
	Royalty Revenues		25			-			51			1,290			-	$	1,366
	Total Revenue	$	115,168		$	140,790		$	56,847		$	178,175		$	111,910	$	602,890
	Gross Margin	$	15,735		$	32,405		$	20,163		$	54,093		$	20,824	$	143,220
	Fiscal quarter ended September 29, 2012:
	Product Sales	$	123,289		$	124,108		$	50,205		$	161,979		$	111,431	$	571,012
	Royalty Revenues		36			-			-			1,733			-	$	1,769
	Total Revenue	$	123,325		$	124,108		$	50,205		$	163,712		$	111,431	$	572,781
	Gross Margin	$	17,402		$	25,209		$	15,563		$	51,254		$	24,126	$	133,554
	Nine fiscal months ended September 28, 2013:
	Product Sales	$	331,473		$	406,525		$	171,419		$	510,630		$	329,821	$	1,749,868
	Royalty Revenues		146			-			51			4,744			-	$	4,941
	Total Revenue	$	331,619		$	406,525		$	171,470		$	515,374		$	329,821	$	1,754,809
	Gross Margin	$	45,101		$	91,093		$	59,088		$	161,039		$	66,490	$	422,811
	Nine fiscal months ended September 29, 2012:
	Product Sales	$	329,316		$	380,250		$	158,900		$	484,136		$	341,704	$	1,694,306
	Royalty Revenues		210			-			27			4,984			-	$	5,221
	Total Revenue	$	329,526		$	380,250		$	158,927		$	489,120		$	341,704	$	1,699,527
	Gross Margin	$	46,728		$	78,939		$	51,462		$	160,586		$	80,167	$	417,882
		Fiscal quarters ended						Nine fiscal months ended
		28-Sep-13			29-Sep-12			28-Sep-13			29-Sep-12
	Operating margin reconciliation:
	MOSFETs	$	5,313		$	7,127		$	13,828		$	17,126
	Diodes		26,240			19,432			72,968			61,473
	Optoelectronic Components		16,492			12,420			48,259			41,657
	Resistors & Inductors		45,096			43,617			134,836			136,817
	Capacitors		14,879			19,033			48,920			63,901
	Executive Compensation Credit (Charge)		-			-			1,778			-
	Gain on Sale of Property		-			-			-			12,153
	Unallocated Selling, General, and Administrative Expenses		(54,867	)		(57,170	)		(169,941	)		(165,440	)
	Consolidated Operating Income	$	53,153		$	44,459		$	150,648		$	167,687

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 28, 2013
Earnings Per Share [Abstract]
Earnings Per Share	Note 10 – Earnings Per Share
	The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands):
		Fiscal quarters ended				Nine fiscal months ended
		28-Sep-13		29-Sep-12		28-Sep-13		29-Sep-12
	Numerator:
	Numerator for basic earnings per share:
	Net earnings	$	32,719	$	22,280	$	92,959	$	101,763
	Adjustment to the numerator for continuing operations and net earnings:
	Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax		33		71		124		233
	Numerator for diluted earnings per share:
	Net earnings	$	32,752	$	22,351	$	93,083	$	101,996
	Denominator:
	Denominator for basic earnings per share:
	Weighted average shares		144,937		143,273		144,012		150,978
	Effect of dilutive securities:
	Convertible and exchangeable debt instruments		6,560		6,176		7,045		6,176
	Restricted stock units		279		572		301		517
	Other		114		97		113		99
	Dilutive potential common shares		6,953		6,845		7,459		6,792
	Denominator for diluted earnings per share:
	Adjusted weighted average shares		151,890		150,118		151,471		157,770
	Basic earnings per share attributable to Vishay stockholders	$	0.23	$	0.16	$	0.65	$	0.67
	Diluted earnings per share attributable to Vishay stockholders	$	0.22	$	0.15	$	0.61	$	0.65
	Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands):
		Fiscal quarters ended				Nine fiscal months ended
		28-Sep-13		29-Sep-12		28-Sep-13		29-Sep-12
	Convertible and exchangeable notes:
	Convertible Senior Debentures, due 2040		19,809		19,809		19,809		19,809
	Convertible Senior Debentures, due 2041		7,885		7,885		7,885		7,885
	Convertible Senior Debentures, due 2042		-		12,704		-		5,677
	Weighted average employee stock options		77		124		87		199
	Weighted average warrants		-		8,824		-		8,824
	Weighted average other		285		231		370		211
	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 upon the occurrence of certain events.  While none of these events has occurred as of September 28, 2013, certain conditions which could trigger conversion have been deemed to be non-substantive, and accordingly, the Company has always assumed the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive.
	At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of 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 $13.88, 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 $19.02, 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 $11.81, 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. 28, 2013
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			Level 1		Level 2		Level 3
		Fair Value
	September 28, 2013:
	Assets:
	Assets held in rabbi trusts	$	35,889		$	23,370	$	12,519	$	-
	Available for sale securities	$	7,212			7,212		-		-
		$	43,101		$	30,582	$	12,519	$	-
	Liabilities:
	Embedded derivative - convertible debentures due 2040	$	(429	)	$	-	$	-	$	(429	)
	Embedded derivative - convertible debentures due 2041	$	(299	)		-		-		(299	)
	Embedded derivative - convertible debentures due 2042	$	(209	)		-		-		(209	)
		$	(937	)	$	-	$	-	$	(937	)
	December 31, 2012:
	Assets:
	Assets held in rabbi trusts	$	33,751		$	21,954	$	11,797	$	-
	Available for sale securities	$	7,580			7,580		-		-
		$	41,331		$	29,534	$	11,797	$	-
	Liabilities:
	Embedded derivative - convertible debentures due 2040	$	(622	)	$	-	$	-	$	(622	)
	Embedded derivative - convertible debentures due 2041	$	(399	)		-		-		(399	)
	Embedded derivative - convertible debentures due 2042	$	(282	)		-		-		(282	)
		$	(1,303	)	$	-	$	-	$	(1,303	)
	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 fair value of the long-term debt, excluding the derivative liabilities, at September 28, 2013 and December 31, 2012 is approximately $739,900 and $686,800, respectively, compared to its carrying value, excluding the derivative liabilities, of $358,937, and $391,628, 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 28, 2013 and December 31, 2012, 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 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 28, 2013 and December 31, 2012, 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 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. 28, 2013
Basis of Presentation [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Guidance
	In February 2013, the FASB issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220), Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The ASU adds new disclosure requirements for items reclassified out of accumulated other comprehensive income.  The ASU does not amend any existing requirements for reporting net income or other comprehensive income in the financial statements.  The ASU is effective for the Company for interim and annual periods beginning after January 1, 2013.  Vishay adopted the ASU on January 1, 2013.  The adoption of the ASU had no effect on the Company's financial position, results of operations, or liquidity.
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 2013 end on March 30, 2013, June 29, 2013, September 28, 2013, and December 31, 2013, respectively.  The four fiscal quarters in 2012 ended on March 31, 2012, June 30, 2012, September 29, 2012, and December 31, 2012, respectively.

Income_Taxes_Policies

Income Taxes (Policies)	9 Months Ended
	Sep. 28, 2013
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 28, 2013 and September 29, 2012 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.

StockBased_Compensation_Polici

Stock-Based Compensation (Policies)	9 Months Ended
	Sep. 28, 2013
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.  Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award.
	The Company recognizes compensation cost for RSUs that are expected to vest and records cumulative adjustments in the period that the expectation changes.  Stock-based compensation for the nine fiscal months ended September 28, 2013, as presented in the table above, includes the material reversal of stock-based compensation expense recognized for the performance-based RSUs scheduled to vest on January 1, 2014 recorded in the second fiscal quarter of 2013.  $1,778 of these reversed costs had been originally reported as a separate line item upon cessation of employment of certain former executives in 2011, and accordingly, this adjustment is also reported as a separate line item in the consolidated condensed statements of operations.

Segment_Information_Policies

Segment Information (Policies)	9 Months Ended
	Sep. 28, 2013
Segment Information [Abstract]
Segment Reporting, Policy [Policy Text Block]	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.
	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, asset write-downs, goodwill and indefinite-lived intangible asset impairments, inventory write-downs, gains or losses on purchase commitments, 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.

Earnings_Per_Share_Policies

Earnings Per Share (Policies)	9 Months Ended
	Sep. 28, 2013
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 upon the occurrence of certain events.  While none of these events has occurred as of September 28, 2013, certain conditions which could trigger conversion have been deemed to be non-substantive, and accordingly, the Company has always assumed the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive.
	At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of 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 $13.88, 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 $19.02, 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 $11.81, 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. 28, 2013
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.

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 28, 2013
Long-Term Debt [Abstract]
Key terms of the convertible debentures	Vishay currently has three issuances of convertible senior debentures outstanding with generally congruent terms.  The following table summarizes some key facts and terms regarding the three series of outstanding convertible senior debentures:
		Due 2040				Due 2041				Due 2042
	Issuance date	9-Nov-10				13-May-11				31-May-12
	Maturity date		15-Nov-40			15-May-41				1-Jun-42
	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	%			8.375	%			7.5	%
	Initial conversion rate (per $1 principal amount)		72.0331				52.5659				84.6937
	Effective conversion price (per share)	$	13.88			$	19.02			$	11.81
	130% of the conversion price (per share)	$	18.04			$	24.73			$	15.35
	Call date		20-Nov-20			20-May-21				7-Jun-22
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 - net carrying value
	28-Sep-13
	Due 2040	$	275,000				(174,110	)			429			$	101,319		$	110,094
	Due 2041	$	150,000				(98,321	)			299			$	51,978		$	62,246
	Due 2042	$	150,000				(92,274	)			209			$	57,935		$	57,874
	Total	$	575,000			$	(364,705	)		$	937			$	211,232		$	230,214
	31-Dec-12
	Due 2040	$	275,000				(175,456	)			622			$	100,166		$	110,094
	Due 2041	$	150,000				(99,000	)			399			$	51,399		$	62,246
	Due 2042	$	150,000				(92,958	)			282			$	57,324		$	57,874
	Total	$	575,000			$	(367,414	)		$	1,303			$	208,889		$	230,214
Schedule of long-term debt instruments	Long-term debt consists of the following:
		September 28,				December 31,
		2013				2012
	Credit facility	$	110,000			$	89,000
	Exchangeable unsecured notes, due 2102		38,642				95,042
	Convertible senior debentures, due 2040		101,319				100,166
	Convertible senior debentures, due 2041		51,978				51,399
	Convertible senior debentures, due 2042		57,935				57,324
			359,874				392,931
	Less current portion		-				-
		$	359,874			$	392,931
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
			28-Sep-13
			Due 2040		$	1,547				458				22			(30	)	$	1,997
			Due 2041		$	844				231				11			(13	)	$	1,073
			Due 2042		$	844				233				13			3		$	1,093
			Total		$	3,235			$	922			$	46		$	(40	)	$	4,163
			29-Sep-12
			Due 2040		$	1,547				423				22			47		$	2,039
			Due 2041		$	844				213				12			(19	)	$	1,050
			Due 2042		$	844				216				13			(13	)	$	1,060
			Total		$	3,235			$	852			$	47		$	15		$	4,149
	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
			28-Sep-13
			Due 2040		$	4,641				1,346				66			(193	)	$	5,860
			Due 2041		$	2,532				679				35			(100	)	$	3,146
			Due 2042		$	2,532				684				40			(73	)	$	3,183
			Total		$	9,705			$	2,709			$	141		$	(366	)	$	12,189
			29-Sep-12
			Due 2040		$	4,641				1,244				66			14		$	5,965
			Due 2041		$	2,532				626				36			15		$	3,209
			Due 2042		$	1,135				290				18			29		$	1,472
			Total		$	8,308			$	2,160			$	120		$	58		$	10,646

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 28, 2013
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, 2013	$	(178,956	)	$	167,461	$	1,273		$	(10,222	)
	Other comprehensive income before reclassifications		-			10,304		1,171		$	11,475
	Tax effect		-			-		(389	)	$	(389	)
	Other comprehensive income before reclassifications, net of tax		-			10,304		782		$	11,086
	Amounts reclassified out of AOCI		13,808			-		(1,408	)	$	12,400
	Tax effect		(4,558	)		-		472		$	(4,086	)
	Amounts reclassified out of AOCI, net of tax		9,250			-		(936	)	$	8,314
	Net comprehensive income	$	9,250		$	10,304	$	(154	)	$	19,400
	Balance at September 28, 2013	$	(169,706	)	$	177,765	$	1,119		$	9,178

Pensions_and_Other_Postretirem1

Pensions and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 28, 2013
Pension Plan, Defined Benefit [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 2013 and 2012 for the Company's defined benefit pension plans:
		Fiscal quarter ended						Fiscal quarter ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Net service cost	$	-		$	864		$	-		$	800
	Interest cost		3,471			2,022			3,925			2,289
	Expected return on plan assets		(4,781	)		(510	)		(4,743	)		(416	)
	Amortization of prior service cost (credit)		244			(9	)		550			-
	Amortization of losses		3,733			832			3,142			409
	Net periodic benefit cost	$	2,667		$	3,199		$	2,874		$	3,082
	The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 28, 2013 and September 29, 2012 for the Company's defined benefit pension plans:
		Nine fiscal months ended						Nine fiscal months ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Net service cost	$	-		$	2,621		$	-		$	2,425
	Interest cost		10,412			6,076			11,775			7,007
	Expected return on plan assets		(14,343	)		(1,559	)		(14,229	)		(1,242	)
	Amortization of prior service cost (credit)		733			(26	)		1,650			-
	Amortization of losses		11,198			2,499			9,427			1,243
	Net periodic benefit cost	$	8,000		$	9,611		$	8,623		$	9,433
Other Postretirement Benefit Plan, Defined Benefit [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 2013 and 2012 for the Company's other postretirement benefit plans:
		Fiscal quarter ended						Fiscal quarter ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Service cost	$	28		$	74		$	19		$	62
	Interest cost		78			64			130			70
	Amortization of prior service (credit)		(200	)		-			(101	)		-
	Amortization of transition obligation		-			-			8			-
	Amortization of losses (gains)		1			-			(24	)		-
	Net periodic benefit cost	$	(93	)	$	138		$	32		$	132
	The following table shows the components of the net periodic pension cost for the nine fiscal months ended September 28, 2013 and September 29, 2012 for the Company's other postretirement benefit plans:
		Nine fiscal months ended						Nine fiscal months ended
		28-Sep-13						29-Sep-12
		U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
	Service cost	$	83		$	222		$	55		$	189
	Interest cost		235			191			391			214
	Amortization of prior service (credit)		(599	)		-			(305	)		-
	Amortization of transition obligation		-			-			24			-
	Amortization of losses (gains)		3			-			(72	)		-
	Net periodic benefit cost	$	(278	)	$	413		$	93		$	403

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 28, 2013
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
		28-Sep-13			29-Sep-12		28-Sep-13			29-Sep-12
	Stock options	$	-		$	13	$	18		$	60
	Restricted stock units		382			1,128		(1,336	)		3,396
	Phantom stock units		-			-		108			93
	Total	$	382		$	1,141	$	(1,210	)	$	3,549
Schedule of unrecognized compensation cost, nonvested awards	The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at September 28, 2013 (amortization periods in years):
		Unrecognized Compensation Cost			Weighted Average Remaining Amortization Periods
	Stock options	$	-			0
	Restricted stock units		12,432			1.4
	Phantom stock units		-			0
	Total	$	12,432
Schedule of share-based compensation, restricted stock units award activity	RSU activity under the 2007 Program as of September 28, 2013 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:
	1-Jan-13		1,316		$	12.53
	Granted		374			12.76
	Vested*		(500	)		9.82
	Cancelled or forfeited		-			-
	Outstanding at September 28, 2013		1,190		$	13.74
	Expected to vest at September 28, 2013		570
	________________________________________
	* 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 on January 1, 2014 and January 1, 2015 is fixed based on the full achievement of the defined target performance criteria.  The number of performance-based RSUs that are scheduled to vest on January 1, 2016 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
	1-Jan-14	-		233	233
	1-Jan-15	-		276	276
	1-Jan-16	111		111	222
Schedule of share-based compensation, phantom stock units, Activity	Phantom stock unit activity under the phantom stock plan as of September 28, 2013 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:
	1-Jan-13		97
	Granted		10		$	10.75
	Redeemed for common stock		-
	Outstanding at September 28, 2013		107

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 28, 2013
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 28, 2013:
	Product Sales	$	115,143		$	140,790		$	56,796		$	176,885		$	111,910	$	601,524
	Royalty Revenues		25			-			51			1,290			-	$	1,366
	Total Revenue	$	115,168		$	140,790		$	56,847		$	178,175		$	111,910	$	602,890
	Gross Margin	$	15,735		$	32,405		$	20,163		$	54,093		$	20,824	$	143,220
	Fiscal quarter ended September 29, 2012:
	Product Sales	$	123,289		$	124,108		$	50,205		$	161,979		$	111,431	$	571,012
	Royalty Revenues		36			-			-			1,733			-	$	1,769
	Total Revenue	$	123,325		$	124,108		$	50,205		$	163,712		$	111,431	$	572,781
	Gross Margin	$	17,402		$	25,209		$	15,563		$	51,254		$	24,126	$	133,554
	Nine fiscal months ended September 28, 2013:
	Product Sales	$	331,473		$	406,525		$	171,419		$	510,630		$	329,821	$	1,749,868
	Royalty Revenues		146			-			51			4,744			-	$	4,941
	Total Revenue	$	331,619		$	406,525		$	171,470		$	515,374		$	329,821	$	1,754,809
	Gross Margin	$	45,101		$	91,093		$	59,088		$	161,039		$	66,490	$	422,811
	Nine fiscal months ended September 29, 2012:
	Product Sales	$	329,316		$	380,250		$	158,900		$	484,136		$	341,704	$	1,694,306
	Royalty Revenues		210			-			27			4,984			-	$	5,221
	Total Revenue	$	329,526		$	380,250		$	158,927		$	489,120		$	341,704	$	1,699,527
	Gross Margin	$	46,728		$	78,939		$	51,462		$	160,586		$	80,167	$	417,882
Reconciliation of Operating Profit (Loss) from Segments to Consolidated		Fiscal quarters ended						Nine fiscal months ended
		28-Sep-13			29-Sep-12			28-Sep-13			29-Sep-12
	Operating margin reconciliation:
	MOSFETs	$	5,313		$	7,127		$	13,828		$	17,126
	Diodes		26,240			19,432			72,968			61,473
	Optoelectronic Components		16,492			12,420			48,259			41,657
	Resistors & Inductors		45,096			43,617			134,836			136,817
	Capacitors		14,879			19,033			48,920			63,901
	Executive Compensation Credit (Charge)		-			-			1,778			-
	Gain on Sale of Property		-			-			-			12,153
	Unallocated Selling, General, and Administrative Expenses		(54,867	)		(57,170	)		(169,941	)		(165,440	)
	Consolidated Operating Income	$	53,153		$	44,459		$	150,648		$	167,687

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 28, 2013
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (shares in thousands):
		Fiscal quarters ended				Nine fiscal months ended
		28-Sep-13		29-Sep-12		28-Sep-13		29-Sep-12
	Numerator:
	Numerator for basic earnings per share:
	Net earnings	$	32,719	$	22,280	$	92,959	$	101,763
	Adjustment to the numerator for continuing operations and net earnings:
	Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax		33		71		124		233
	Numerator for diluted earnings per share:
	Net earnings	$	32,752	$	22,351	$	93,083	$	101,996
	Denominator:
	Denominator for basic earnings per share:
	Weighted average shares		144,937		143,273		144,012		150,978
	Effect of dilutive securities:
	Convertible and exchangeable debt instruments		6,560		6,176		7,045		6,176
	Restricted stock units		279		572		301		517
	Other		114		97		113		99
	Dilutive potential common shares		6,953		6,845		7,459		6,792
	Denominator for diluted earnings per share:
	Adjusted weighted average shares		151,890		150,118		151,471		157,770
	Basic earnings per share attributable to Vishay stockholders	$	0.23	$	0.16	$	0.65	$	0.67
	Diluted earnings per share attributable to Vishay stockholders	$	0.22	$	0.15	$	0.61	$	0.65
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands):
		Fiscal quarters ended				Nine fiscal months ended
		28-Sep-13		29-Sep-12		28-Sep-13		29-Sep-12
	Convertible and exchangeable notes:
	Convertible Senior Debentures, due 2040		19,809		19,809		19,809		19,809
	Convertible Senior Debentures, due 2041		7,885		7,885		7,885		7,885
	Convertible Senior Debentures, due 2042		-		12,704		-		5,677
	Weighted average employee stock options		77		124		87		199
	Weighted average warrants		-		8,824		-		8,824
	Weighted average other		285		231		370		211

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 28, 2013
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			Level 1		Level 2		Level 3
		Fair Value
	September 28, 2013:
	Assets:
	Assets held in rabbi trusts	$	35,889		$	23,370	$	12,519	$	-
	Available for sale securities	$	7,212			7,212		-		-
		$	43,101		$	30,582	$	12,519	$	-
	Liabilities:
	Embedded derivative - convertible debentures due 2040	$	(429	)	$	-	$	-	$	(429	)
	Embedded derivative - convertible debentures due 2041	$	(299	)		-		-		(299	)
	Embedded derivative - convertible debentures due 2042	$	(209	)		-		-		(209	)
		$	(937	)	$	-	$	-	$	(937	)
	December 31, 2012:
	Assets:
	Assets held in rabbi trusts	$	33,751		$	21,954	$	11,797	$	-
	Available for sale securities	$	7,580			7,580		-		-
		$	41,331		$	29,534	$	11,797	$	-
	Liabilities:
	Embedded derivative - convertible debentures due 2040	$	(622	)	$	-	$	-	$	(622	)
	Embedded derivative - convertible debentures due 2041	$	(399	)		-		-		(399	)
	Embedded derivative - convertible debentures due 2042	$	(282	)		-		-		(282	)
		$	(1,303	)	$	-	$	-	$	(1,303	)

Acquisition_and_Divestiture_Ac1

Acquisition and Divestiture Activities (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012
Business Acquisitions
Acquisition of business, net of cash acquired	$23,034	$85,493
Other intangible assets related to acquisitions	133,969		133,717
Goodwill related to acquisitions	42,961		34,866
MCB Industrie [Member]
Business Acquisitions
Goodwill related to acquisitions	7,985
Finite-lived Intangible Assets Acquired	5,433
Acquisition of business, net of cash acquired	$23,034

Restructuring_and_Related_Acti1

Restructuring and Related Activities (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Jun. 30, 2012	Apr. 03, 2012
					Belguim [Member]	Belguim [Member]
Long-Lived Assets [Line Items]
Gain on Sale of Property	$0	$0	$0	($12,153)	($12,153)
Proceeds from sale of long lived assets held for sale			3,866	7,770	3,406
Sale price of long lived assets held for sale						14,200
Restructuring and Related Cost, Expected Cost			$26,000

Income_Taxes_Details

Income Taxes (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013
Income Taxes [Abstract]
Decrease in liabilities for unrecognized tax benefits	($7,311)
Change due to enactment of American Taxpayer Relief Act [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	-1,330
Change in Israel Tax Rate [Member]
Effect on Income Tax Expense (Benefit) [Line Items]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	($2,867)

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended			3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012	Sep. 28, 2013	Jul. 06, 2010	Jul. 05, 2010	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Dec. 31, 2012
						Exchangeable Unsecured Notes, Due 2102 [Member]	Exchangeable Unsecured Notes, Due 2102 [Member]	Exchangeable Unsecured Notes, Due 2102 [Member]	Convertible Senior Debentures 2040 [Member]	Convertible Senior Debentures 2040 [Member]	Convertible Senior Debentures 2040 [Member]	Convertible Senior Debentures 2040 [Member]	Convertible Senior Debentures 2040 [Member]	Convertible Senior Debentures 2041 [Member]	Convertible Senior Debentures 2041 [Member]	Convertible Senior Debentures 2041 [Member]	Convertible Senior Debentures 2041 [Member]	Convertible Senior Debentures 2041 [Member]	Convertible Senior Debentures 2042 [Member]	Convertible Senior Debentures 2042 [Member]	Convertible Senior Debentures 2042 [Member]	Convertible Senior Debentures 2042 [Member]	Convertible Senior Debentures 2042 [Member]
Line of Credit Facility [Line Items]
Permitted stock repurchase capacity under credit facility	$198,592		$198,592
Incremental revolving commitments			50,000
Line of Credit Facility, Commitment Fee Description			Vishay is also required to pay facility fees on the entire commitment amount based on the Company's leverage ratio. Based on the Company's current leverage ratio, the facility fee is 0.35% per annum. Such facility fee will increase to 0.50% per annum if the Company's leverage ratio equals or exceeds 2.50 to 1 and will decrease to 0.30% per annum if the leverage ratio decreases below 1.50 to 1.
Line of Credit Facility, Commitment Fee Percentage			0.35%
Line of Credit Facility, Interest Rate Description			Borrowings under the Credit Facility bear interest at LIBOR plus an interest margin. The applicable interest margin is based on the Company's leverage ratio. Based on the Company's current leverage ratio, borrowings bear interest at LIBOR plus 1.75%. The interest rate on the Company's borrowings will increase to LIBOR plus 2.00% if the Company's leverage ratio equals or exceeds 2.50 to 1 and will decrease to LIBOR plus 1.50% if the Company's leverage ratio decreases below 1.50 to 1.
Line of Credit Facility, Expiration Date			8-Aug-18
Line of Credit Facility, Initiation Date			8-Aug-13
Line of Credit Facility, Covenant Terms			The Credit Facility permits the Company to repurchase shares of its common stock up to a permitted capacity, conditioned upon Vishay maintaining (i) a pro forma leverage ratio of 2.75 to 1.00, (ii) a pro forma interest expense coverage ratio of 2.00 to 1.00, and (iii) $300,000 of available liquidity, as defined in the Credit Facility. The permitted capacity to repurchase shares of the Company's outstanding common stock under the Credit Facility increases each quarter by an amount equal to 20% of net income. At September 28, 2013, the Credit Facility allows the Company to repurchase up to $198,592 of its common stock. The amount and timing of any future stock repurchases remains subject to authorization of the Company's Board of Directors.
Line of Credit Facility, Maximum Borrowing Capacity	640,000		640,000
Debt Instrument [Line Items]
Long-term debt	359,874		359,874		392,931
Convertible Debt, Noncurrent									101,319		101,319		100,166	51,978		51,978		51,399	57,935		57,935		57,324
Exchangeable unsecured notes, due 2102	38,642		38,642		95,042
Credit facility	110,000		110,000		89,000
Less current portion	0		0		0
Long-term debt, less current portion	359,874		359,874		392,931
Debt Instruments [Abstract]
Common shares issued for conversion of exchangeable notes			3,664,729			3,664,729
Issuance date						13-Dec-02					9-Nov-10					13-May-11					31-May-12
Debt maturity date											15-Nov-40					15-May-41					1-Jun-42
Principal amount of debt	575,000		575,000		575,000	38,642	95,042	105,000	275,000		275,000		275,000	150,000		150,000		150,000	150,000		150,000		150,000
Stated rate of interest on debt (in hundredths)									2.25%		2.25%			2.25%		2.25%			2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)									8.00%		8.00%			8.38%		8.38%			7.50%		7.50%
Debt instrument percentage of conversion price (in hundredths)			130.00%
Debt Instrument, Convertible, Stock Price Trigger						$15.39					$18.04					$24.73					$15.35
Debt Instrument Conversion Price Amount									$13.88		$13.88			$19.02		$19.02			$11.81		$11.81
Debt instrument, initial conversion shares of common stock (shares per $1000 principal)											72.0331					52.5659					84.6937
Convertible senior debentures call date											20-Nov-20					20-May-21					7-Jun-22
Debt instrument, initial conversion price (in dollars per share)											72.0331					52.5659					84.6937
Principal amount of notes exchanged						56,400
Liability and equity components of convertible debentures [Abstract]
Principal amount of the debentures	575,000		575,000		575,000	38,642	95,042	105,000	275,000		275,000		275,000	150,000		150,000		150,000	150,000		150,000		150,000
Unamortized discount	-364,705		-364,705		-367,414				-174,110		-174,110		-175,456	-98,321		-98,321		-99,000	-92,274		-92,274		-92,958
Embedded derivative	937		937		1,303				429		429		622	299		299		399	209		209		282
Carrying value of liability component	211,232		211,232		208,889				101,319		101,319		100,166	51,978		51,978		51,399	57,935		57,935		57,324
Equity component - net carrying value	230,214		230,214		230,214				110,094		110,094		110,094	62,246		62,246		62,246	57,874		57,874		57,874
Interest expense related to debentures [Abstract]
Contractual coupon interest	3,235	3,235	9,705	8,308					1,547	1,547	4,641	4,641		844	844	2,532	2,532		844	844	2,532	1,135
Non-cash amortization of debt discount	922	852	2,709	2,160					458	423	1,346	1,244		231	213	679	626		233	216	684	290
Non-cash amortization of deferred financing costs	46	47	141	120					22	22	66	66		11	12	35	36		13	13	40	18
Non-cash change in value of derivative liability	-40	15	-366	58					-30	47	-193	14		-13	-19	-100	15		3	-13	-73	29
Total interest expense related to the debentures	$4,163	$4,149	$12,189	$10,646					$1,997	$2,039	$5,860	$5,965		$1,073	$1,050	$3,146	$3,209		$1,093	$1,060	$3,183	$1,472
Number of shares of common stock the Notes are exchangeable into (in shares)						2,511,742

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)	$15,043	$18,687	$41,501	$50,968
Accumulated Other Comprehensive Income
Beginning Balance			-10,222
Other comprehensive income before reclassifications			11,475
Tax effect			-389
Other comprehensive income before reclassifications, net of tax			11,086
Amounts reclassified out of AOCI			12,400
Tax effect			-4,086
Amounts reclassified out of AOCI, net of tax			8,314
Net comprehensive income	28,113	31,376	19,400	10,371
Ending Balance	9,178		9,178
Unrealized Gain (Loss) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income
Beginning Balance			1,273
Other comprehensive income before reclassifications			1,171
Tax effect			-389
Other comprehensive income before reclassifications, net of tax			782
Amounts reclassified out of AOCI			-1,408
Tax effect			472
Amounts reclassified out of AOCI, net of tax			-936
Net comprehensive income			-154
Ending Balance	1,119		1,119
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income
Beginning Balance			167,461
Other comprehensive income before reclassifications			10,304
Tax effect			0
Other comprehensive income before reclassifications, net of tax			10,304
Amounts reclassified out of AOCI			0
Tax effect			0
Amounts reclassified out of AOCI, net of tax			0
Net comprehensive income			10,304
Ending Balance	177,765		177,765
Pension and Other Post-Retirement Actuarial Items [Member]
Accumulated Other Comprehensive Income
Beginning Balance			-178,956
Other comprehensive income before reclassifications			0
Tax effect			0
Other comprehensive income before reclassifications, net of tax			0
Amounts reclassified out of AOCI			13,808
Tax effect			-4,558
Amounts reclassified out of AOCI, net of tax			9,250
Net comprehensive income			9,250
Ending Balance	-169,706		-169,706
Rabbi Trust Assets [Member] | Unrealized Gain (Loss) on Available-for-Sale Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Component of Selling, General, and Administrative Expense	624		1,355
Other AFS Securities [Member] | Unrealized Gain (Loss) on Available-for-Sale Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Component of Other Income	$97		$53

Pensions_and_Other_Postretirem2

Pensions and Other Postretirement Benefits (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	$864	$800	$2,621	$2,425
Interest cost	2,022	2,289	6,076	7,007
Expected return on plan assets	-510	-416	-1,559	-1,242
Amortization of prior service cost (credit)	-9	0	-26	0
Amortization of losses (gains)	832	409	2,499	1,243
Net periodic benefit cost	3,199	3,082	9,611	9,433
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	0	0	0	0
Interest cost	3,471	3,925	10,412	11,775
Expected return on plan assets	-4,781	-4,743	-14,343	-14,229
Amortization of prior service cost (credit)	244	550	733	1,650
Amortization of losses (gains)	3,733	3,142	11,198	9,427
Net periodic benefit cost	2,667	2,874	8,000	8,623
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	28	19	83	55
Interest cost	78	130	235	391
Amortization of transition obligation	0	8	0	24
Amortization of prior service cost (credit)	-200	-101	-599	-305
Amortization of losses (gains)	1	-24	3	-72
Net periodic benefit cost	-93	32	-278	93
Foreign Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	74	62	222	189
Interest cost	64	70	191	214
Amortization of transition obligation	0	0	0	0
Amortization of prior service cost (credit)	0	0	0	0
Amortization of losses (gains)	0	0	0	0
Net periodic benefit cost	$138	$132	$413	$403

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Stock-Based Compensation [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares			30,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$382	$1,141	($1,210)	$3,549
Unrecognized Compensation Cost	12,432		12,432
Expiration date of the 2007 stock incentive plan			22-May-17
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)	3,000,000		3,000,000
Stock Options Outstanding:
Balance			109,000
Balance (in dollars per share)			$15.24
Exercised (in shares)			0
Exercised (in dollars per share)			$0
Balance	109,000		109,000
Balance (in dollars per share)	$15.24		$15.24
Weighted average remaining contractual life of options outstanding at September 28, 2013			3 years 5 months 26 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Vested and expected to vest (in shares)	109,000		109,000
Vested and expected to vest (in dollars per share)	$15.24		$15.24
Remaining contractual term of options, vested and expected to vest at September 28, 2013			3 years 5 months 26 days
Exercisable (in shares)	109,000		109,000
Exercisable (in dollars per share)	$15.24		$15.24
Remaining contractual term of options, exercisable at September 28, 2013			3 years 5 months 26 days
Stock price (in dollars per share)	$12.97		$12.97
Stock options exercised (in shares)			0
Intrinsic value under share based compensation scheme			8
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	0	13	18	60
Unrecognized Compensation Cost	0		0
Weighted Average Remaining Amortization Periods			0 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	382	1,128	-1,336	3,396
Unrecognized Compensation Cost	12,432		12,432
Weighted Average Remaining Amortization Periods			1 year 4 months 24 days
Equity Awards Other Than Options Outstanding:
Balance (in shares)			1,316,000
Balance (in dollars per share)			$12.53
Granted (in shares)			374,000
Granted (in dollars per share)			$12.76
Vested (in shares)			-500,000
Vested (in dollars per share)			$9.82
Cancelled or forfeited (in shares)			0
Cancelled or forfeited (in dollars per share)			$0
Balance (in shares)	1,190,000		1,190,000
Balance (in dollars per share)	$13.74		$13.74
Expected to vest at September 28, 2013 (in shares)	570,000		570,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	1,190,000		1,190,000
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	0	0	108	93
Unrecognized Compensation Cost	$0		$0
Weighted Average Remaining Amortization Periods			0 days
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares)	300,000		300,000
Equity Awards Other Than Options Outstanding:
Balance (in shares)			97,000
Granted (in shares)			10,000
Granted (in dollars per share)			$10.75
Redeemed for common stock			0
Balance (in shares)	107,000		107,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	107,000		107,000
Scheduled to Vest January 1, 2014 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)	233,000		233,000
Expected to vest at September 28, 2013 (in shares)	0		0
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Not Expected To Vest Outstanding Number	233,000		233,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	233,000		233,000
Scheduled to Vest January 1, 2015 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)	276,000		276,000
Expected to vest at September 28, 2013 (in shares)	0		0
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Not Expected To Vest Outstanding Number	276,000		276,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	276,000		276,000
Scheduled to Vest January 1, 2016 [Member] | Performance Vested Restricted Stock Units [Member]
Equity Awards Other Than Options Outstanding:
Balance (in shares)	222,000		222,000
Expected to vest at September 28, 2013 (in shares)	111,000		111,000
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Not Expected To Vest Outstanding Number	111,000		111,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	222,000		222,000

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Segment Reporting Information [Line Items]
Number of reportable segments	5
Product Sales	$601,524	$571,012	$1,749,868	$1,694,306
Royalty Revenues	1,366	1,769	4,941	5,221
Total Revenue	602,890	572,781	1,754,809	1,699,527
Gross Margin	143,220	133,554	422,811	417,882
Gain on Sale of Property	0	0	0	12,153
Executive compensation credit (charge)	0	0	1,778	0
Operating Income (Loss)	53,153	44,459	150,648	167,687
MOSFETS Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	115,143	123,289	331,473	329,316
Royalty Revenues	25	36	146	210
Total Revenue	115,168	123,325	331,619	329,526
Gross Margin	15,735	17,402	45,101	46,728
Segment Operating Income	5,313	7,127	13,828	17,126
Diodes Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	140,790	124,108	406,525	380,250
Royalty Revenues	0	0	0	0
Total Revenue	140,790	124,108	406,525	380,250
Gross Margin	32,405	25,209	91,093	78,939
Segment Operating Income	26,240	19,432	72,968	61,473
Optoelectronic Components Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	56,796	50,205	171,419	158,900
Royalty Revenues	51	0	51	27
Total Revenue	56,847	50,205	171,470	158,927
Gross Margin	20,163	15,563	59,088	51,462
Segment Operating Income	16,492	12,420	48,259	41,657
Resistors And Inductors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	176,885	161,979	510,630	484,136
Royalty Revenues	1,290	1,733	4,744	4,984
Total Revenue	178,175	163,712	515,374	489,120
Gross Margin	54,093	51,254	161,039	160,586
Segment Operating Income	45,096	43,617	134,836	136,817
Capacitors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	111,910	111,431	329,821	341,704
Royalty Revenues	0	0	0	0
Total Revenue	111,910	111,431	329,821	341,704
Gross Margin	20,824	24,126	66,490	80,167
Segment Operating Income	14,879	19,033	48,920	63,901
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Segment Operating Income	($54,867)	($57,170)	($169,941)	($165,440)

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Numerator for basic earnings per share:
Net earnings	$32,719	$22,280	$92,959	$101,763
Adjustment to the numerator for continuing operations and net earnings:
Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax	33	71	124	233
Numerator for diluted earnings per share:
Net earnings	$32,752	$22,351	$93,083	$101,996
Denominator for basic earnings per share:
Weighted average shares outstanding - basic (in shares)	144,937	143,273	144,012	150,978
Effect of dilutive securities:
Convertible and exchangeable debt instruments	6,560	6,176	7,045	6,176
Restricted stock units	279	572	301	517
Other	114	97	113	99
Dilutive potential common shares	6,953	6,845	7,459	6,792
Denominator for diluted earnings per share:
Weighted average shares outstanding - diluted (in shares)	151,890	150,118	151,471	157,770
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$0.23	$0.16	$0.65	$0.67
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$0.22	$0.15	$0.61	$0.65
Convertible Senior Debentures 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)	19,809	19,809	19,809	19,809
Minimum market price of common stock for inclusion of shares issuable upon conversion of subordinated notes for calculation of diluted earnings per share (in dollars per share)			$13.88
Convertible Senior Debentures 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)	7,885	7,885	7,885	7,885
Minimum market price of common stock for inclusion of shares issuable upon conversion of subordinated notes for calculation of diluted earnings per share (in dollars per share)			$19.02
Convertible Senior Debentures 2042 [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	12,704	0	5,677
Minimum market price of common stock for inclusion of shares issuable upon conversion of subordinated notes for calculation of diluted earnings per share (in dollars per share)			$11.81
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)	77	124	87	199
Weighted average warrants [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	8,824	0	8,824
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)	285	231	370	211

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 31, 2012
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
Assets held in rabbi trusts	35,889	33,751
Available for sale securities	7,212	7,580
Fair Value Assets	43,101	41,331
Liabilities:
Embedded derivative	-937	-1,303
Fair Value Liabilities	-937	-1,303
Long-term Debt, Fair Value	739,900	686,800
Carrying value of long-term debt, excluding derivative liabilities	358,937	391,628
Fair Value, Inputs, Level 1 [Member]
Assets:
Assets held in rabbi trusts	23,370	21,954
Available for sale securities	7,212	7,580
Fair Value Assets	30,582	29,534
Liabilities:
Fair Value Liabilities	0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
Assets held in rabbi trusts	12,519	11,797
Available for sale securities	0	0
Fair Value Assets	12,519	11,797
Liabilities:
Fair Value Liabilities	0	0
Fair Value, Inputs, Level 3 [Member]
Assets:
Assets held in rabbi trusts	0	0
Available for sale securities	0	0
Fair Value Assets	0	0
Liabilities:
Fair Value Liabilities	-937	-1,303
Convertible Senior Debentures 2040 [Member]
Liabilities:
Embedded derivative	-429	-622
Convertible Senior Debentures 2040 [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2040 [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2040 [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	-429	-622
Convertible Senior Debentures 2041 [Member]
Liabilities:
Embedded derivative	-299	-399
Convertible Senior Debentures 2041 [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2041 [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2041 [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	-299	-399
Convertible Senior Debentures 2042 [Member]
Liabilities:
Embedded derivative	-209	-282
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures 2042 [Member] | Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	($209)	($282)