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Document and Entity Information - USD ($)	6 Months Ended
Document and Entity Information - USD ($)	Jun. 30, 2012	Jul. 27, 2012
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		131,143,534
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2012
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	0000103730
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float	$ 1,234,000,000
Class B Convertible Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		12,129,227

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 708,772	$ 749,088
Short-term investments	239,503	249,139
Accounts receivable, net	298,974	270,970
Inventories:
Finished goods	109,688	104,478
Work in process	196,050	181,354
Raw materials	128,818	131,795
Total inventories	434,556	417,627
Deferred income taxes	24,581	24,632
Prepaid expenses and other current assets	115,794	119,220
Total current assets	1,822,180	1,830,676
Property and equipment, at cost:
Land	91,131	91,507
Buildings and improvements	502,872	493,550
Machinery and equipment	2,092,532	2,079,395
Construction in progress	76,718	94,717
Allowance for depreciation	(1,890,152)	(1,851,264)
Property, Plant and Equipment, Net, Total	873,101	907,905
Goodwill	34,866	9,051
Other intangible assets, net	139,738	103,927
Other assets	137,813	142,171
Total assets	3,007,698	2,993,730
Current liabilities:
Notes payable to banks	116	13
Trade accounts payable	154,277	154,942
Payroll and related expenses	103,765	109,833
Other accrued expenses	146,318	161,119
Income taxes	4,600	13,881
Total current liabilities	409,076	439,788
Long-term debt less current portion	462,173	399,054
Deferred income taxes	146,645	110,356
Other liabilities	113,869	117,235
Accrued pension and other postretirement costs	298,426	319,136
Total liabilities	1,430,189	1,385,569
Vishay stockholders' equity
Common stock	13,114	14,374
Class B convertible common stock	1,213	1,345
Capital in excess of par value	1,998,765	2,086,925
(Accumulated deficit) retained earnings	(423,933)	(503,416)
Accumulated other comprehensive income (loss)	(17,227)	3,778
Total Vishay stockholders' equity	1,571,932	1,603,006
Noncontrolling interests	5,577	5,155
Total equity	1,577,509	1,608,161
Total liabilities and equity	$ 3,007,698	$ 2,993,730

Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Consolidated Condensed Statements of Operations [Abstract]
Net revenues	$ 588,199	$ 709,838	$ 1,126,746	$ 1,404,989
Costs of products sold	440,580	497,648	842,418	978,136
Gross profit	147,619	212,190	284,328	426,853
Selling, general, and administrative expenses	86,889	92,796	173,253	185,261
Gain on Sale of Property	(12,153)	0	(12,153)	0
Executive compensation charge	0	3,889	0	3,889
Operating income	72,883	115,505	123,228	237,703
Other income (expense):
Interest expense	(5,539)	(4,624)	(10,256)	(8,678)
Other	(2,094)	(28)	(786)	(535)
Nonoperating Income (Expense), Total	(7,633)	(4,652)	(11,042)	(9,213)
Income before taxes	65,250	110,853	112,186	228,490
Income tax expense	19,420	28,357	32,281	70,387
Net earnings	45,830	82,496	79,905	158,103
Less: net earnings attributable to noncontrolling interests	159	401	422	721
Net earnings attributable to Vishay stockholders	$ 45,671	$ 82,095	$ 79,483	$ 157,382
Basic earnings per share attributable to Vishay stockholders	$ 0.30	$ 0.51	$ 0.51	$ 0.97
Diluted earnings per share attributable to Vishay stockholders	$ 0.29	$ 0.48	$ 0.49	$ 0.91
Weighted average shares outstanding - basic	152,462	160,801	154,831	163,006
Weighted average shares outstanding - diluted	159,249	170,645	161,596	173,143

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 45,830	$ 82,496	$ 79,905	$ 158,103
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(50,445)	18,691	(27,217)	64,419
Pension and other post-retirement actuarial items	3,251	482	5,555	2,416
Unrealized gain (loss) on available-for-sale securities	(157)	(851)	657	(240)
Other comprehensive income (loss)	(47,351)	18,322	(21,005)	66,595
Comprehensive income (loss)	(1,521)	100,818	58,900	224,698
Less: comprehensive income attributable to noncontrolling interests	159	401	422	721
Comprehensive income (loss) attributable to Vishay stockholders	$ (1,680)	$ 100,417	$ 58,478	$ 223,977

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Operating activities
Net earnings	$ 79,905	$ 158,103
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	83,838	90,771
(Gain) loss on disposal of property and equipment	(13,070)	(930)
Accretion of interest on convertible debentures	1,308	861
Inventory write-offs for obsolescence	10,050	10,560
Other	8,110	(2,502)
Net change in operating assets and liabilities, net of effects of businesses acquired	(75,737)	(82,947)
Net cash provided by operating activities	94,404	173,916
Investing activities
Capital expenditures	(47,298)	(45,365)
Proceeds from sale of property and equipment	6,355	1,473
Purchase of businesses, net of cash acquired	(85,493)	0
Purchase of short-term investments	(201,143)	(391,524)
Maturity of short-term investments	207,077	82,990
Other investing activities	(640)	307
Net cash used in investing activities	(121,142)	(352,119)
Financing activities
Proceeds from long-term borrowings	150,000	150,000
Issuance costs	(4,827)	(4,144)
Common stock repurchase	(150,000)	(150,000)
Principal payments on long-term debt and capital leases	(16)	(6)
Net proceeds (payments) on revolving credit lines	5,000	(60,000)
Net changes in short-term borrowings	(2)	(9)
Proceeds from stock options exercised	174	7,938
Excess tax benefit from stock options exercised	0	555
Distributions to noncontrolling interests	0	(500)
Net cash provided by (used in) financing activities	329	(56,166)
Effect of exchange rate changes on cash and cash equivalents	(13,907)	29,623
Net decrease in cash and cash equivalents	(40,316)	(204,746)
Cash and cash equivalents at beginning of period	749,088	897,338
Cash and cash equivalents at end of period	$ 708,772	$ 692,592

Consolidated Condensed Statement of Equity - 6 months ended Jun. 30, 2012 - USD ($) $ in Thousands	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
Balance at Dec. 31, 2011	$ 14,374	$ 1,345	$ 2,086,925	$ (503,416)	$ 3,778	$ 1,603,006	$ 5,155	$ 1,608,161
Net earnings	0	0	0	79,483	0	79,483	422	79,905
Other comprehensive income (loss)	0	0	0	0	(21,005)	(21,005)	0	(21,005)
Phantom and restricted stock issuances	1	0	(9)	0	0	(8)	0	(8)
Issuance of convertible debentures due 2042	0	0	57,874	0	0	57,874	0	57,874
Stock repurchase	(1,395)	0	(148,605)	0	0	(150,000)	0	(150,000)
Stock compensation expense	0	0	2,408	0	0	2,408	0	2,408
Stock options exercised	2	0	172	0	0	174	0	174
Conversions from Class B to common stock	132	(132)	0	0	0	0	0	0
Balance at Jun. 30, 2012	$ 13,114	$ 1,213	$ 1,998,765	$ (423,933)	$ (17,227)	$ 1,571,932	$ 5,577	$ 1,577,509

- Definition

This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ Details

- Definition

The gross value of stock issued during the period upon the conversion of convertible securities.

+ References + Details

- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References + Details

Consolidated Condensed Statement of Equity (Parenthetical)	6 Months Ended
	Jun. 30, 2012 shares
Consolidated Condensed Statement of Equity [Abstract]
Phantom and restricted stock issuances (in shares)	11,323
Stock options exercised (in shares)	22,095
Stock repurchase (in shares)	13,948,687
Conversions from Class B to common stock (in shares)	1,323,322

- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

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+ Details

- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

+ References + Details

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2012
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, 2011. The results of operations for the fiscal quarter and six fiscal months ended June 30, 2012 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 2012 end on March 31, 2012, June 30, 2012, September 29, 2012, and December 31, 2012, respectively. The four fiscal quarters in 2011 ended on April 2, 2011, July 2, 2011, October 1, 2011, and December 31, 2011, respectively. Recently Adopted Accounting Guidance In May 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-4, Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS. The ASU generally aligns the principles for fair value measurements and the related disclosure requirements under GAAP and International Financial Reporting Standards. The updated guidance clarifies existing fair value measurement and disclosure requirements and requires additional disclosure requirements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. Vishay adopted the ASU on January 1, 2012. The adoption of the ASU had no effect on the Company’s financial position, results of operations, or liquidity. In September 2011, the FASB issued ASU No. 2011-8, Testing Goodwill for Impairment. Under the revised guidance, the Company has the option of performing a qualitative assessment before calculating the fair value of the reporting unit when testing goodwill for impairment. If the Company determines, on the basis of qualitative factors, that the fair value of the reporting unit is more likely than not less than the carrying amount, the two-step impairment test would be required. The ASU does not change how goodwill is calculated or assigned to reporting units, nor does it revise the requirement to test goodwill annually for impairment. In addition, the ASU does not amend the requirement to test goodwill for impairment between annual tests if events or circumstances warrant; however, it does revise the examples of events and circumstances that an entity should consider. The ASU is effective for annual and interim goodwill impairment tests beginning after January 1, 2012. Vishay adopted the ASU on January 1, 2012. 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 Activities	6 Months Ended
Acquisition Activities	Jun. 30, 2012
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 innovation, quality, and reliability, strong customer bases, and product lines with which the Company has substantial marketing and technical expertise. HiRel Systems LLC On January 13, 2012, Vishay acquired HiRel Systems LLC, a leading supplier of high reliability transformers, inductors, coils, and power conversion products, for $85,493, net of cash acquired. The products and technology portfolio acquired will further enhance the Company’s inductors portfolio, particularly in the field of custom magnetics for medical, military, aerospace and aviation, and applications in the industrial and commercial field such as renewable energy and test and measurement equipment. For financial reporting purposes, the results of operations for this business have been included in the Resistors & Inductors segment from January 13, 2012. The inclusion of this business did not have a material impact on the Company’s consolidated results for the fiscal quarter or six fiscal months ended June 30, 2012. Based on an estimate of their fair values, the Company allocated $43,950 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 $25,815 related to this acquisition. The goodwill associated with this transaction is 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.

Other Intangible Assets

6 Months Ended

Jun. 30, 2012

Other Intangible Assets [Abstract]

Other Intangible Assets

Note 3 – Other Intangible Assets

Other intangible assets are as follows:

	June 30, 2012			December 31, 2011

Intangible Assets Subject to Amortization
(Definite-lived):
Patents and acquired technology	$	113,938		$	111,428
Capitalized software		54,216			53,721
Customer relationships		97,352			57,723
Tradenames		36,428			36,762
Non-competition agreements		1,700			1,000
		303,634			260,634
Accumulated amortization:
Patents and acquired technology		(90,026	)		(89,379	)
Capitalized software		(49,214	)		(47,836	)
Customer relationships		(29,604	)		(26,174	)
Tradenames		(15,159	)		(13,615	)
Non-competition agreements		(252	)		(62	)
		(184,255	)		(177,066	)
Net Intangible Assets Subject to Amortization		119,379			83,568

Intangible Assets Not Subject to Amortization
(Indefinite-lived):
Tradenames		20,359			20,359
	$	139,738		$	103,927

The increase in net intangible assets from December 31, 2011 is mainly attributable to the acquisition of HiRel Systems LLC on January 13, 2012. The Company allocated $43,950 of the purchase price to definite-lived intangible assets. Amortization expense (excluding capitalized software) for the fiscal quarter and six fiscal months ended June 30, 2012 was $3,690 and $7,289, respectively, compared to amortization expense (excluding capitalized software) of $3,796 and $7,565 for the fiscal quarter and six fiscal months ended July 2, 2011, respectively. HiRel Systems LLC intangible assets accounted for $694 and $1,281 of amortization expense for the fiscal quarter and six fiscal months ended June 30, 2012, respectively.

Estimated annual amortization expense of intangible assets (excluding capitalized software) on the balance sheet at June 30, 2012 for the full year 2012 and each of the next four years is as follows:

2012	$	15,213
2013		15,272
2014		15,152
2015		15,085
2016		13,413

Restructuring and Related Activities	6 Months Ended
Restructuring and Related Activities	Jun. 30, 2012
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities	Note 4 – 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 will be reported as proceeds from the sale of property and equipment within the statements of cash flows as the cash is received over the next three years.

- Definition

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References + Details

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2012
Income Taxes [Abstract]
Income Taxes	Note 5 – Income Taxes The provision for income taxes consists of provisions for federal, state, and foreign income taxes. The effective tax rates for the periods ended June 30, 2012 and July 2, 2011 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 January 2011, a new tax law was enacted in Israel which effectively lowered the corporate income tax rate on certain types of income earned after December 31, 2010. Accordingly, the Company’s deferred tax assets in Israel were written down to reflect the lower rate and a one-time tax expense of $10,024 was recorded in the consolidated condensed statement of operations during the six fiscal months ended July 2, 2011. During the six fiscal months ended June 30, 2012, the liabilities for unrecognized tax benefits increased by $3,217 on a net basis, principally due to increases for positions taken in prior periods and interest expense.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Long-Term Debt

6 Months Ended

Jun. 30, 2012

Long-Term Debt [Abstract]

Long-Term Debt

Note 6 – Long-Term Debt

Long-term debt consists of the following:

	June 30, 2012	December 31, 2011

Credit facility	$160,000	$155,000
Exchangeable unsecured notes, due 2102	95,042	95,042
Convertible senior debentures, due 2040	99,251	98,463
Convertible senior debentures, due 2041	50,996	50,549
Convertible senior debentures, due 2042	56,884	-
	462,173	399,054
Less current portion	-	-
	$462,173	$399,054

Amendment of Credit Facility

On April 3, 2012, Vishay amended its credit agreement and entered into an incremental facility agreement that increases the total credit facility commitment from $450,000 to $528,000. The incremental revolving commitments have terms and conditions identical to the terms and conditions of the existing commitments under the credit facility. Vishay paid an amendment fee of $390 to complete this amendment. The other material terms and conditions of the credit agreement have not been changed. The credit agreement, as amended, will expire on December 1, 2015.

Convertible Senior Debentures, due 2042

On May 31, 2012, Vishay issued $150,000 principal amount of 2.25% convertible senior debentures due 2042 to qualified institutional investors. Vishay used the net proceeds from this offering, together with cash on hand, to repurchase 13,948,687 shares of common stock for an aggregate purchase price of $150,000.

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 due 2042 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012
Liability component:
Principal amount of the debentures	$	150,000
Unamortized discount		(93,394	)
Embedded derivative		278
Carrying value of liability component	$	56,884

Equity component - net carrying value	$	57,874

Interest is payable on the debentures semi-annually at a rate of 2.25% per annum; however, the remaining debt discount is being amortized as additional non-cash interest expense using an effective annual interest rate of 7.50% based on the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. In addition to ordinary interest, beginning on June 1, 2022, contingent interest will accrue in certain circumstances relating to the trading price of the debentures and under certain other circumstances.

Interest expense related to the convertible debentures due 2042 is reflected on the consolidated condensed statement of operations as follows:

	Fiscal quarter and six fiscal months ended
	June 30, 2012
Contractual coupon interest	$	291
Non-cash amortization of debt discount		74
Non-cash amortization of deferred financing costs		5
Non-cash change in value of derivative liability		42
Total interest expense related to the debentures	$	412

Prior to March 1, 2042, the holders may only convert their debentures under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending September 29, 2012 if the sale price of Vishay common stock reaches 130% of the conversion price (currently, $15.35) for a specified period; (2) the trading price of the debentures falls below 98% of the product of the sale price of Vishay’s common stock and the conversion rate for a specified period; (3) Vishay calls any or all of the debentures for redemption, at any time prior to the close of business on the third scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. None of these conditions had occurred as of June 30, 2012.

The debentures are initially convertible, subject to certain conditions, into cash, shares of Vishay’s common stock or a combination thereof, at Vishay’s option, at an initial conversion rate of 84.6937 shares of common stock per $1,000 principal amount of debentures. This represents an initial effective conversion price of approximately $11.81 per share. This initial conversion price represents a premium of 13.75% to the closing price of Vishay’s common stock on the date the offering commenced, which was $10.38 per share. At the direction of its Board of Directors, Vishay intends, upon conversion, to repay the principal amount of the debentures in cash and settle any additional amounts in shares. Vishay must provide additional shares upon conversion if there is a “fundamental change” in the business as defined in the indenture governing the debentures.

Vishay may not redeem the debentures prior to June 7, 2022, except in connection with certain tax-related events. On or after June 7, 2022 and prior to the maturity date, Vishay may redeem for cash all or part of the debentures at a redemption price equal to 100% of the principal amount of the debentures to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date, if the last reported sale price of Vishay’s common stock has been at least 150% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period prior to the date on which Vishay provides notice of redemption.

Convertible Senior Debentures, due 2041

On May 13, 2011, Vishay issued $150,000 principal amount of 2.25% convertible senior debentures due 2041 to qualified institutional investors. GAAP requires an issuer to separately account for the liability and equity components of a convertible debt 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 due 2041 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012			December 31, 2011
Liability component:
Principal amount of the debentures	$	150,000		$	150,000
Unamortized discount		(99,430	)		(99,843	)
Embedded derivative		426			392
Carrying value of liability component	$	50,996		$	50,549

Equity component - net carrying value	$	62,246		$	62,246

Interest is payable on the debentures semi-annually at a rate of 2.25% per annum; however, the remaining debt discount is being amortized as additional non-cash interest expense using an effective annual interest rate of 8.375% based on the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. In addition to ordinary interest, beginning on May 15, 2021, contingent interest will accrue in certain circumstances relating to the trading price of the debentures and under certain other circumstances.

Interest expense related to the convertible debentures due 2041 is reflected on the consolidated condensed statements of operations as follows:

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Contractual coupon interest	$	844	$	441	$	1,688	$	441
Non-cash amortization of debt discount		209		102		413		102
Non-cash amortization of deferred financing costs		12		6		24		6
Non-cash change in value of derivative liability		109		2		34		2
Total interest expense related to the debentures	$	1,174	$	551	$	2,159	$	551

Convertible Senior Debentures, due 2040

On November 9, 2010, Vishay issued $275,000 principal amount of 2.25% convertible senior debentures due 2040 to qualified institutional investors. GAAP requires an issuer to separately account for the liability and equity components of a convertible debt 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 due 2040 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012			December 31, 2011
Liability component:
Principal amount of the debentures	$	275,000		$	275,000
Unamortized discount		(176,310	)		(177,131	)
Embedded derivative		561			594
Carrying value of liability component	$	99,251		$	98,463

Equity component - net carrying value	$	110,094		$	110,094

Interest is payable on the debentures semi-annually at a rate of 2.25% per annum; however, the remaining debt discount is being amortized as additional non-cash interest expense using an effective annual interest rate of 8.00% based on the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. In addition to ordinary interest, beginning on November 15, 2020, contingent interest will accrue in certain circumstances relating to the trading price of the debentures and under certain other circumstances.

Interest expense related to the convertible debentures due 2040 is reflected on the consolidated condensed statements of operations as follows:

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012			July 2, 2011
Contractual coupon interest	$	1,547	$	1,547	$	3,094		$	3,094
Non-cash amortization of debt discount		414		383		821			759
Non-cash amortization of deferred financing costs		22		22		44			44
Non-cash change in value of derivative liability		71		69		(33	)		8
Total interest expense related to the debentures	$	2,054	$	2,021	$	3,926		$	3,905

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Pensions and Other Postretirement Benefits

6 Months Ended

Jun. 30, 2012

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 second fiscal quarters of 2012 and 2011 for the Company’s defined benefit pension plans:

	Fiscal quarter ended						Fiscal quarter ended
	June 30, 2012						July 2, 2011
	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans

Net service cost	$	-		$	811		$	-		$	849
Interest cost		3,923			2,344			4,081			2,679
Expected return on plan assets		(4,770	)		(414	)		(4,888	)		(398	)
Amortization of prior service cost		550			-			612			-
Amortization of losses		3,174			416			2,201			254
Curtailments and settlements		-			-			148			-
Net periodic benefit cost	$	2,877		$	3,157		$	2,154		$	3,384

The following table shows the components of the net periodic pension cost for the six fiscal months ended June 30, 2012 and July 2, 2011 for the Company’s defined benefit pension plans:

	Six fiscal months ended						Six fiscal months ended
	June 30, 2012						July 2, 2011
	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans

Net service cost	$	-		$	1,625		$	-		$	1,676
Interest cost		7,850			4,718			8,149			5,241
Expected return on plan assets		(9,486	)		(826	)		(9,541	)		(789	)
Amortization of prior service cost		1,100			-			1,253			-
Amortization of losses		6,285			834			4,303			503
Curtailments and settlements		-			-			148			-
Net periodic benefit cost	$	5,749		$	6,351		$	4,312		$	6,631

The following table shows the components of the net periodic benefit cost for the second fiscal quarters of 2012 and 2011 for the Company’s other postretirement benefit plans:

	Fiscal quarter ended					Fiscal quarter ended
	June 30, 2012					July 2, 2011
	U.S. Plans			Non-U.S. Plans		U.S. Plans			Non-U.S. Plans

Service cost	$	18		$	63	$	20		$	71
Interest cost		131			71		146			73
Amortization of prior service credit		(102	)		-		(111	)		-
Amortization of transition obligation		8			-		12			-
Amortization of gains		(26	)		-		(61	)		-
Net periodic benefit cost	$	29		$	134	$	6		$	144

The following table shows the components of the net periodic benefit cost for the six fiscal months ended June 30, 2012 and July 2, 2011 for the Company’s other postretirement benefit plans:

	Six fiscal months ended					Six fiscal months ended
	June 30, 2012					July 2, 2011
	U.S. Plans			Non-U.S. Plans		U.S. Plans			Non-U.S. Plans

Service cost	$	36		$	127	$	39		$	138
Interest cost		261			144		292			142
Amortization of prior service credit		(204	)		-		(221	)		-
Amortization of transition obligation		16			-		24			-
Amortization of gains		(48	)		-		(122	)		-
Net periodic benefit cost	$	61		$	271	$	12		$	280

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph q
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5, 6, 7, 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 158
-Paragraph 7, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS106-2
-Paragraph 20, 21, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation

6 Months Ended

Jun. 30, 2012

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.

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					Six fiscal months ended
	June 30, 2012		July 2, 2011			June 30, 2012		July 2, 2011

Stock options	$	20	$	(245	)	$	47	$	(125	)
Restricted stock units		1,133		3,573			2,268		4,639
Phantom stock units		-		-			93		222
Total	$	1,153	$	3,328		$	2,408	$	4,736

Stock-based compensation expense for the fiscal quarter and six fiscal months ended July 2, 2011, as presented in the tables above, includes amounts associated with the acceleration of vesting of awards upon the passing of Vishay’s former Executive Chairman of the Board of Directors, Dr. Felix Zandman. The associated expense is reported as a component of the executive compensation charge reported in the accompanying consolidated condensed statements of operations. In accordance with Dr. Zandman’s employment agreement, 98,375 RSUs held by Dr. Zandman immediately vested and were contributed to his estate following his passing and 202,330 RSUs with performance-based vesting criteria will be contributed to his estate upon the Company’s achievement of the performance-based criteria. Additionally, the vesting of 77,334 unvested stock options held by Dr. Zandman at the time of his passing was accelerated.

The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at June 30, 2012 (amortization periods in years):

	Unrecognized Compensation Cost		Weighted Average Remaining Amortization Periods

Stock options	$	44		0.9
Restricted stock units		7,431		1.6
Phantom stock units		-		0.0
Total	$	7,475

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. 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, 2011. No additional options may be granted pursuant to these programs.

Option activity under the stock option plans as of June 30, 2012 and changes during the six fiscal months then ended are presented below (number of options in thousands, contractual life in years):

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life
Outstanding:
January 1, 2012		384		$	15.40
Granted		-			-
Exercised		(22	)		7.89
Cancelled or forfeited		(232	)		16.29
Outstanding at June 30, 2012		130		$	15.08		4.00

Vested and expected to vest at June 30, 2012		130		$	15.08		4.00
Exercisable at June 30, 2012		99		$	14.88		3.69

During the six fiscal months ended June 30, 2012, 30,000 options vested. At June 30, 2012, there are 31,000 unvested options outstanding, with a weighted average grant-date fair value of $10.07 per option.

The pretax aggregate intrinsic value (the difference between the closing stock price on the last trading day of the second fiscal quarter of 2012 of $9.43 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 June 30, 2012 is zero because all outstanding options have exercise prices in excess of market value. This amount changes based on changes in the market value of the Company’s common stock. During the six fiscal months ended June 30, 2012, 22,000 options were exercised. The total intrinsic value of options exercised during the six fiscal months ended June 30, 2012 was approximately $110.

Restricted Stock Units

RSU activity under the 2007 Program as of June 30, 2012 and changes during the six fiscal months then ended are presented below (number of RSUs in thousands):

	Number of RSUs			Weighted Average Grant-date Fair Value per Unit
Outstanding:
January 1, 2012		891		$	12.58
Granted		437			12.31
Vested*		(12	)		8.29
Cancelled or forfeited		-			-
Outstanding at June 30, 2012		1,316		$	12.53

Expected to vest at June 30, 2012		1,316

________________________________________

* The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.

The Company recognizes compensation cost for RSUs that are expected to vest. The Company expects all performance-based vesting criteria to be achieved. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands):

	Vesting Date		Number of RSUs
	January 1, 2013		324
	January 1, 2014		233
	January 1, 2015		276

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 June 30, 2012 and changes during the six fiscal months then ended are presented below (number of phantom stock units in thousands):

	Number of units		Grant-date Fair Value per Unit
Outstanding:
January 1, 2012		87
Granted		10	$	9.33
Redeemed for common stock		-
Outstanding at June 30, 2012		97

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Segment Information

6 Months Ended

Jun. 30, 2012

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 June 30, 2012:
Product Sales	$	111,326	$	136,008	$	58,083	$	164,903	$	116,347	$	586,667
Royalty Revenues		37		-		-		1,495		-	$	1,532
Total Revenue	$	111,363	$	136,008	$	58,083	$	166,398	$	116,347	$	588,199

Gross Margin	$	18,709	$	28,676	$	18,605	$	55,073	$	26,556	$	147,619

Fiscal quarter ended July 2, 2011:
Product Sales	$	153,180	$	169,613	$	63,761	$	167,430	$	154,295	$	708,279
Royalty Revenues		65		-		-		1,494		-	$	1,559
Total Revenue	$	153,245	$	169,613	$	63,761	$	168,924	$	154,295	$	709,838

Gross Margin	$	42,811	$	43,699	$	21,961	$	58,956	$	44,763	$	212,190

Six fiscal months ended June 30, 2012:
Product Sales	$	206,027	$	256,142	$	108,695	$	322,157	$	230,273	$	1,123,294
Royalty Revenues		174		-		27		3,251		-	$	3,452
Total Revenue	$	206,201	$	256,142	$	108,722	$	325,408	$	230,273	$	1,126,746

Gross Margin	$	29,326	$	53,730	$	35,899	$	109,332	$	56,041	$	284,328

Six fiscal months ended July 2, 2011:
Product Sales	$	296,081	$	329,030	$	121,467	$	339,349	$	316,147	$	1,402,074
Royalty Revenues		162		-		42		2,711		-	$	2,915
Total Revenue	$	296,243	$	329,030	$	121,509	$	342,060	$	316,147	$	1,404,989

Gross Margin	$	82,250	$	82,839	$	41,909	$	120,114	$	99,741	$	426,853

	Fiscal quarters ended						Six fiscal months ended
	June 30, 2012			July 2, 2011			June 30, 2012			July 2, 2011
Operating margin reconciliation:
MOSFETs	$	8,676		$	32,522		$	9,999		$	61,932
Diodes		22,682			37,208			42,041			70,008
Optoelectronic Components		15,192			18,330			29,237			34,687
Resistors & Inductors		46,688			51,757			93,200			105,861
Capacitors		20,951			38,584			44,868			86,917
Unallocated Selling, General, and Administrative Expenses		(53,459	)		(59,007	)		(108,270	)		(117,813	)
Gain on Sale of Property		12,153			-			12,153			-
Executive Compensation Charge		-			(3,889	)		-			(3,889	)
Consolidated Operating Income	$	72,883		$	115,505		$	123,228		$	237,703

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher FASB
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+ Details

Earnings Per Share

6 Months Ended

Jun. 30, 2012

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				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011

Numerator:
Numerator for basic earnings per share:
Net earnings	$	45,671	$	82,095	$	79,483	$	157,382

Adjustment to the numerator for continuing
operations and net earnings:
Interest savings assuming conversion of dilutive convertible
and exchangeable notes, net of tax		72		48		162		94

Numerator for diluted earnings per share:
Net earnings	$	45,743	$	82,143	$	79,645	$	157,476

Denominator:
Denominator for basic earnings per share:
Weighted average shares		152,462		160,801		154,831		163,006

Effect of dilutive securities:
Convertible and exchangeable debt instruments		6,176		9,166		6,176		9,464
Restricted stock units		513		428		489		385
Other		98		250		100		288
Dilutive potential common shares		6,787		9,844		6,765		10,137

Denominator for diluted earnings per share:
Adjusted weighted average shares		159,249		170,645		161,596		173,143

Basic earnings per share attributable to Vishay stockholders	$	0.30	$	0.51	$	0.51	$	0.97

Diluted earnings per share attributable to Vishay stockholders	$	0.29	$	0.48	$	0.49	$	0.91

Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands):

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Convertible and exchangeable notes:
Convertible Senior Debentures, due 2040		19,809		-		19,809		-
Convertible Senior Debentures, due 2041		7,885		4,332		7,885		2,166
Convertible Senior Debentures, due 2042		4,328		-		2,164		-
Weighted average employee stock options		296		-		244		2
Weighted average warrants		8,824		8,824		8,824		8,824
Weighted average other		194		101		201		69

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 June 30, 2012, 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 notes 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

6 Months Ended

Jun. 30, 2012

Fair Value Measurements [Abstract]

Fair Value Measurements

Note 11 – Fair Value Measurements

The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3: Unobservable inputs that reflect the Company’s own assumptions.

An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented.

The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis:

	Total Fair Value			Level 1		Level 2		Level 3
June 30, 2012:
Assets:
Assets held in rabbi trusts	$	33,097		$	21,511	$	11,586	$	-
Available for sale securities	$	6,705			6,705		-		-
	$	39,802		$	28,216	$	11,586	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(561	)	$	-	$	-	$	(561	)
Embedded derivative - convertible debentures due 2041	$	(426	)		-		-		(426	)
Embedded derivative - convertible debentures due 2042	$	(278	)		-		-		(278	)
	$	(1,265	)	$	-	$	-	$	(1,265	)

December 31, 2011:
Assets:
Assets held in rabbi trusts	$	31,698		$	20,569	$	11,129	$	-
Available for sale securities	$	6,776			6,776		-		-
	$	38,474		$	27,345	$	11,129	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(594	)	$	-	$	-	$	(594	)
Embedded derivative - convertible debentures due 2041	$	(392	)		-		-		(392	)
	$	(986	)	$	-	$	-	$	(986	)

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 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 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 London Interbank Offered Rate (“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 June 30, 2012 and December 31, 2011 is approximately $708,500 and $533,900, respectively, compared to its carrying value, excluding the derivative liabilities, of $460,908, and $398,068, 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.

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts receivable, long-term notes receivable, short-term notes payable, and accounts payable. The carrying amounts for these financial instruments reported in the consolidated balance sheets approximate their fair values.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Commitments and Contingencies

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies [Abstract]

Commitments and Contingencies

Note 12 – Commitments and Contingencies

Semiconductor Foundry Agreements

The Company’s Siliconix subsidiary maintains long-term foundry agreements with subcontractors to ensure access to external front-end capacity.

Since 2004, Siliconix has maintained a definitive long-term foundry agreement for semiconductor manufacturing with Tower Semiconductor, pursuant to which Siliconix transferred certain technology to Tower Semiconductor and committed to purchase a minimum amount of semiconductor wafers. The agreement with Tower extends through the second quarter of 2015.

Subsequent to the end of the second fiscal quarter, on July 6, 2012, Siliconix amended its foundry agreement with an Asian foundry to ensure additional capacity in exchange for cash and a commitment to purchase a minimum amount of semiconductor wafers. This agreement extends through the fourth quarter of 2016.

The Company estimates its total purchase commitments under the foundry agreements as follows:

2012	$	26,098
2013		21,428
2014		21,028
2015		21,017
2016		12,211

Siliconix has the option to purchase wafers from these subcontractors in addition to the minimum commitments and, accordingly, actual purchases may be different than the commitments disclosed above.

Executive Employment Agreements

The Company has employment agreements with certain of its senior executives. These employment agreements provide incremental compensation in the event of termination. The Company does not provide any severance or other benefits specifically upon a change in control. The Company recognized compensation expense of $3,889 reported on a separate line in the accompanying consolidated condensed statements of operations in the second fiscal quarter of 2011 for elements of compensation that accelerated upon the passing of Dr. Zandman. (See also Note 8.)

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Jun. 30, 2012
Basis of Presentation [Abstract]
Fiscal Period, Policy	The Company reports interim financial information for 13-week periods beginning on a Sunday and ending on a Saturday, except for the first fiscal quarter, which always begins on January 1, and the fourth fiscal quarter, which always ends on December 31. The four fiscal quarters in 2012 end on March 31, 2012, June 30, 2012, September 29, 2012, and December 31, 2012, respectively. The four fiscal quarters in 2011 ended on April 2, 2011, July 2, 2011, October 1, 2011, and December 31, 2011, respectively.
New Accounting Pronouncements or Change in Accounting Principle, Description	<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">In May 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-4, <font style="DISPLAY: inline; FONT-STYLE: italic">Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS</font>. The ASU generally aligns the principles for fair value measurements and the related disclosure requirements under GAAP and International Financial Reporting Standards<font style="DISPLAY: inline; FONT-FAMILY: Times New Roman">. </font>The updated guidance clarifies existing fair value measurement and disclosure requirements and requires additional disclosure requirements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. Vishay adopted the ASU on January 1, 2012. The adoption of the ASU had no effect on the Company’s financial position, results of operations, or liquidity.</font></div><div style="DISPLAY: block; TEXT-INDENT: 0pt"><br /></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">In September 2011, the FASB issued ASU No. 2011-8, <font style="DISPLAY: inline; FONT-STYLE: italic">Testing Goodwill for Impairment.</font> Under the revised guidance, the Company has the option of performing a qualitative assessment before calculating the fair value of the reporting unit when testing goodwill for impairment. If the Company determines, on the basis of qualitative factors, that the fair value of the reporting unit is more likely than not less than the carrying amount, the two-step impairment test would be required. The ASU does not change how goodwill is calculated or assigned to reporting units, nor does it revise the requirement to test goodwill annually for impairment. In addition, the ASU does not amend the requirement to test goodwill for impairment between annual tests if events or circumstances warrant; however, it does revise the examples of events and circumstances that an entity should consider. The ASU is effective for annual and interim goodwill impairment tests beginning after January 1, 2012. Vishay adopted the ASU on January 1, 2012. The adoption of the ASU had no effect on the Company’s financial position, results of operations, or liquidity.</font></div>

- Definition

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

+ References + Details

- Definition

Disclosure related to a new accounting pronouncement or a change in accounting principle, including the nature and reason for the change and the effect of the change on prior periods and the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accounting Change
-URI http://asc.fasb.org/extlink&oid=6503790

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
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-Paragraph 5
-Subparagraph (SAB TOPIC 11.M)
-URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e31137-122693

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22583-107794

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6507316

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22580-107794

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 154
-Paragraph 2, 17, 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 11
-Section M

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 28
-Paragraph 23, 24
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Income Taxes (Policies)	6 Months Ended
Income Taxes (Policies)	Jun. 30, 2012
Income Taxes [Abstract]
Effective Income tax Rate Description	The effective tax rates for the periods ended June 30, 2012 and July 2, 2011 reflect the Company’s expected tax rate on reported income from continuing operations before income tax and tax adjustments. The Company operates in a global environment with significant operations in various jurisdictions outside the United States. Accordingly, the consolidated income tax rate is a composite rate reflecting the Company’s earnings and the applicable tax rates in the various jurisdictions where the Company operates.

Stock-Based Compensation (Policies)	6 Months Ended
Stock-Based Compensation (Policies)	Jun. 30, 2012
Stock-Based Compensation [Abstract]
Share-based compensation arrangement by share based payment award, method of measuring cost of award	<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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. <font style="DISPLAY: inline; FONT-FAMILY: Times New Roman">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. </font>Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award.</font></div>

Segment Information (Policies)	6 Months Ended
Segment Information (Policies)	Jun. 30, 2012
Segment Information [Abstract]
Segment Reporting Measurement	<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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.</font></div>
Segment Reporting General Information	<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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.</font></div>

Earnings Per Share (Policies)	6 Months Ended
Earnings Per Share (Policies)	Jun. 30, 2012
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 June 30, 2012, 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.
Discussion on convertible debt not included in computation of earnings per share diluted	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 notes 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 (Policies)	6 Months Ended
Fair Value Measurements (Policies)	Jun. 30, 2012
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.

Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2012

Other Intangible Assets [Abstract]

Schedule of Indefinite-lived Intangible Assets by Major Class [Table Text Block]

Other intangible assets are as follows:

	June 30, 2012			December 31, 2011

Intangible Assets Subject to Amortization
(Definite-lived):
Patents and acquired technology	$	113,938		$	111,428
Capitalized software		54,216			53,721
Customer relationships		97,352			57,723
Tradenames		36,428			36,762
Non-competition agreements		1,700			1,000
		303,634			260,634
Accumulated amortization:
Patents and acquired technology		(90,026	)		(89,379	)
Capitalized software		(49,214	)		(47,836	)
Customer relationships		(29,604	)		(26,174	)
Tradenames		(15,159	)		(13,615	)
Non-competition agreements		(252	)		(62	)
		(184,255	)		(177,066	)
Net Intangible Assets Subject to Amortization		119,379			83,568

Intangible Assets Not Subject to Amortization
(Indefinite-lived):
Tradenames		20,359			20,359
	$	139,738		$	103,927

Estimated annual amortization expense for each of the next five years

Estimated annual amortization expense of intangible assets (excluding capitalized software) on the balance sheet at June 30, 2012 for the full year 2012 and each of the next four years is as follows:

2012	$	15,213
2013		15,272
2014		15,152
2015		15,085
2016		13,413

Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2012

Long-Term Debt [Abstract]

Liability and equity of component of convertible senior debentures

The carrying values of the liability and equity components of the convertible debentures due 2042 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012
Liability component:
Principal amount of the debentures	$	150,000
Unamortized discount		(93,394	)
Embedded derivative		278
Carrying value of liability component	$	56,884

Equity component - net carrying value	$	57,874

The carrying values of the liability and equity components of the convertible debentures due 2041 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012			December 31, 2011
Liability component:
Principal amount of the debentures	$	150,000		$	150,000
Unamortized discount		(99,430	)		(99,843	)
Embedded derivative		426			392
Carrying value of liability component	$	50,996		$	50,549

Equity component - net carrying value	$	62,246		$	62,246

The carrying values of the liability and equity components of the convertible debentures due 2040 are reflected in the Company’s consolidated condensed balance sheets as follows:

	June 30, 2012			December 31, 2011
Liability component:
Principal amount of the debentures	$	275,000		$	275,000
Unamortized discount		(176,310	)		(177,131	)
Embedded derivative		561			594
Carrying value of liability component	$	99,251		$	98,463

Equity component - net carrying value	$	110,094		$	110,094

Schedule of long-term debt instruments

Long-term debt consists of the following:

	June 30, 2012	December 31, 2011

Credit facility	$160,000	$155,000
Exchangeable unsecured notes, due 2102	95,042	95,042
Convertible senior debentures, due 2040	99,251	98,463
Convertible senior debentures, due 2041	50,996	50,549
Convertible senior debentures, due 2042	56,884	-
	462,173	399,054
Less current portion	-	-
	$462,173	$399,054

Convertible debentures, interest expense

Interest expense related to the convertible debentures due 2042 is reflected on the consolidated condensed statement of operations as follows:

	Fiscal quarter and six fiscal months ended
	June 30, 2012
Contractual coupon interest	$	291
Non-cash amortization of debt discount		74
Non-cash amortization of deferred financing costs		5
Non-cash change in value of derivative liability		42
Total interest expense related to the debentures	$	412

Interest expense related to the convertible debentures due 2041 is reflected on the consolidated condensed statements of operations as follows:

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Contractual coupon interest	$	844	$	441	$	1,688	$	441
Non-cash amortization of debt discount		209		102		413		102
Non-cash amortization of deferred financing costs		12		6		24		6
Non-cash change in value of derivative liability		109		2		34		2
Total interest expense related to the debentures	$	1,174	$	551	$	2,159	$	551

Interest expense related to the convertible debentures due 2040 is reflected on the consolidated condensed statements of operations as follows:

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012			July 2, 2011
Contractual coupon interest	$	1,547	$	1,547	$	3,094		$	3,094
Non-cash amortization of debt discount		414		383		821			759
Non-cash amortization of deferred financing costs		22		22		44			44
Non-cash change in value of derivative liability		71		69		(33	)		8
Total interest expense related to the debentures	$	2,054	$	2,021	$	3,926		$	3,905

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Subparagraph (SX 210.4-08.(e),(f))
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-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

Pensions and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2012

Pensions and Other Postretirement Benefits [Abstract]

Components of the net periodic pension cost under defined benefit pension plans

The following table shows the components of the net periodic pension cost for the second fiscal quarters of 2012 and 2011 for the Company’s defined benefit pension plans:

	Fiscal quarter ended						Fiscal quarter ended
	June 30, 2012						July 2, 2011
	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans

Net service cost	$	-		$	811		$	-		$	849
Interest cost		3,923			2,344			4,081			2,679
Expected return on plan assets		(4,770	)		(414	)		(4,888	)		(398	)
Amortization of prior service cost		550			-			612			-
Amortization of losses		3,174			416			2,201			254
Curtailments and settlements		-			-			148			-
Net periodic benefit cost	$	2,877		$	3,157		$	2,154		$	3,384

The following table shows the components of the net periodic pension cost for the six fiscal months ended June 30, 2012 and July 2, 2011 for the Company’s defined benefit pension plans:

	Six fiscal months ended						Six fiscal months ended
	June 30, 2012						July 2, 2011
	U.S. Plans			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans

Net service cost	$	-		$	1,625		$	-		$	1,676
Interest cost		7,850			4,718			8,149			5,241
Expected return on plan assets		(9,486	)		(826	)		(9,541	)		(789	)
Amortization of prior service cost		1,100			-			1,253			-
Amortization of losses		6,285			834			4,303			503
Curtailments and settlements		-			-			148			-
Net periodic benefit cost	$	5,749		$	6,351		$	4,312		$	6,631

Net periodic benefit cost under other postretirement benefit plans

The following table shows the components of the net periodic benefit cost for the second fiscal quarters of 2012 and 2011 for the Company’s other postretirement benefit plans:

	Fiscal quarter ended					Fiscal quarter ended
	June 30, 2012					July 2, 2011
	U.S. Plans			Non-U.S. Plans		U.S. Plans			Non-U.S. Plans

Service cost	$	18		$	63	$	20		$	71
Interest cost		131			71		146			73
Amortization of prior service credit		(102	)		-		(111	)		-
Amortization of transition obligation		8			-		12			-
Amortization of gains		(26	)		-		(61	)		-
Net periodic benefit cost	$	29		$	134	$	6		$	144

The following table shows the components of the net periodic benefit cost for the six fiscal months ended June 30, 2012 and July 2, 2011 for the Company’s other postretirement benefit plans:

	Six fiscal months ended					Six fiscal months ended
	June 30, 2012					July 2, 2011
	U.S. Plans			Non-U.S. Plans		U.S. Plans			Non-U.S. Plans

Service cost	$	36		$	127	$	39		$	138
Interest cost		261			144		292			142
Amortization of prior service credit		(204	)		-		(221	)		-
Amortization of transition obligation		16			-		24			-
Amortization of gains		(48	)		-		(122	)		-
Net periodic benefit cost	$	61		$	271	$	12		$	280

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation [Abstract]

Summary of recognized stock-based compensation expense

The following table summarizes stock-based compensation expense recognized:

	Fiscal quarters ended					Six fiscal months ended
	June 30, 2012		July 2, 2011			June 30, 2012		July 2, 2011

Stock options	$	20	$	(245	)	$	47	$	(125	)
Restricted stock units		1,133		3,573			2,268		4,639
Phantom stock units		-		-			93		222
Total	$	1,153	$	3,328		$	2,408	$	4,736

Schedule of unrecognized compensation cost, nonvested awards

The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at June 30, 2012 (amortization periods in years):

	Unrecognized Compensation Cost		Weighted Average Remaining Amortization Periods

Stock options	$	44		0.9
Restricted stock units		7,431		1.6
Phantom stock units		-		0.0
Total	$	7,475

Schedule of share based compensation, stock options, activity

Option activity under the stock option plans as of June 30, 2012 and changes during the six fiscal months then ended are presented below (number of options in thousands, contractual life in years):

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life
Outstanding:
January 1, 2012		384		$	15.40
Granted		-			-
Exercised		(22	)		7.89
Cancelled or forfeited		(232	)		16.29
Outstanding at June 30, 2012		130		$	15.08		4.00

Vested and expected to vest at June 30, 2012		130		$	15.08		4.00
Exercisable at June 30, 2012		99		$	14.88		3.69

Schedule of share-based compensation, restricted stock units award activity

RSU activity under the 2007 Program as of June 30, 2012 and changes during the six fiscal months then ended are presented below (number of RSUs in thousands):

	Number of RSUs			Weighted Average Grant-date Fair Value per Unit
Outstanding:
January 1, 2012		891		$	12.58
Granted		437			12.31
Vested*		(12	)		8.29
Cancelled or forfeited		-			-
Outstanding at June 30, 2012		1,316		$	12.53

Expected to vest at June 30, 2012		1,316

________________________________________

* 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 Company expects all performance-based vesting criteria to be achieved. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands):

	Vesting Date		Number of RSUs
	January 1, 2013		324
	January 1, 2014		233
	January 1, 2015		276

Phantom stock unit activity

Phantom stock unit activity under the phantom stock plan as of June 30, 2012 and changes during the six fiscal months then ended are presented below (number of phantom stock units in thousands):

	Number of units		Grant-date Fair Value per Unit
Outstanding:
January 1, 2012		87
Granted		10	$	9.33
Redeemed for common stock		-
Outstanding at June 30, 2012		97

Segment Information (Tables)

6 Months Ended

Jun. 30, 2012

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 June 30, 2012:
Product Sales	$	111,326	$	136,008	$	58,083	$	164,903	$	116,347	$	586,667
Royalty Revenues		37		-		-		1,495		-	$	1,532
Total Revenue	$	111,363	$	136,008	$	58,083	$	166,398	$	116,347	$	588,199

Gross Margin	$	18,709	$	28,676	$	18,605	$	55,073	$	26,556	$	147,619

Fiscal quarter ended July 2, 2011:
Product Sales	$	153,180	$	169,613	$	63,761	$	167,430	$	154,295	$	708,279
Royalty Revenues		65		-		-		1,494		-	$	1,559
Total Revenue	$	153,245	$	169,613	$	63,761	$	168,924	$	154,295	$	709,838

Gross Margin	$	42,811	$	43,699	$	21,961	$	58,956	$	44,763	$	212,190

Six fiscal months ended June 30, 2012:
Product Sales	$	206,027	$	256,142	$	108,695	$	322,157	$	230,273	$	1,123,294
Royalty Revenues		174		-		27		3,251		-	$	3,452
Total Revenue	$	206,201	$	256,142	$	108,722	$	325,408	$	230,273	$	1,126,746

Gross Margin	$	29,326	$	53,730	$	35,899	$	109,332	$	56,041	$	284,328

Six fiscal months ended July 2, 2011:
Product Sales	$	296,081	$	329,030	$	121,467	$	339,349	$	316,147	$	1,402,074
Royalty Revenues		162		-		42		2,711		-	$	2,915
Total Revenue	$	296,243	$	329,030	$	121,509	$	342,060	$	316,147	$	1,404,989

Gross Margin	$	82,250	$	82,839	$	41,909	$	120,114	$	99,741	$	426,853

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

	Fiscal quarters ended						Six fiscal months ended
	June 30, 2012			July 2, 2011			June 30, 2012			July 2, 2011
Operating margin reconciliation:
MOSFETs	$	8,676		$	32,522		$	9,999		$	61,932
Diodes		22,682			37,208			42,041			70,008
Optoelectronic Components		15,192			18,330			29,237			34,687
Resistors & Inductors		46,688			51,757			93,200			105,861
Capacitors		20,951			38,584			44,868			86,917
Unallocated Selling, General, and Administrative Expenses		(53,459	)		(59,007	)		(108,270	)		(117,813	)
Gain on Sale of Property		12,153			-			12,153			-
Executive Compensation Charge		-			(3,889	)		-			(3,889	)
Consolidated Operating Income	$	72,883		$	115,505		$	123,228		$	237,703

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

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				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011

Numerator:
Numerator for basic earnings per share:
Net earnings	$	45,671	$	82,095	$	79,483	$	157,382

Adjustment to the numerator for continuing
operations and net earnings:
Interest savings assuming conversion of dilutive convertible
and exchangeable notes, net of tax		72		48		162		94

Numerator for diluted earnings per share:
Net earnings	$	45,743	$	82,143	$	79,645	$	157,476

Denominator:
Denominator for basic earnings per share:
Weighted average shares		152,462		160,801		154,831		163,006

Effect of dilutive securities:
Convertible and exchangeable debt instruments		6,176		9,166		6,176		9,464
Restricted stock units		513		428		489		385
Other		98		250		100		288
Dilutive potential common shares		6,787		9,844		6,765		10,137

Denominator for diluted earnings per share:
Adjusted weighted average shares		159,249		170,645		161,596		173,143

Basic earnings per share attributable to Vishay stockholders	$	0.30	$	0.51	$	0.51	$	0.97

Diluted earnings per share attributable to Vishay stockholders	$	0.29	$	0.48	$	0.49	$	0.91

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

	Fiscal quarters ended				Six fiscal months ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Convertible and exchangeable notes:
Convertible Senior Debentures, due 2040		19,809		-		19,809		-
Convertible Senior Debentures, due 2041		7,885		4,332		7,885		2,166
Convertible Senior Debentures, due 2042		4,328		-		2,164		-
Weighted average employee stock options		296		-		244		2
Weighted average warrants		8,824		8,824		8,824		8,824
Weighted average other		194		101		201		69

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Measurements [Abstract]

Schedule of fair Value, Assets and Liabilities Measured on Recurring basis

The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis:

	Total Fair Value			Level 1		Level 2		Level 3
June 30, 2012:
Assets:
Assets held in rabbi trusts	$	33,097		$	21,511	$	11,586	$	-
Available for sale securities	$	6,705			6,705		-		-
	$	39,802		$	28,216	$	11,586	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(561	)	$	-	$	-	$	(561	)
Embedded derivative - convertible debentures due 2041	$	(426	)		-		-		(426	)
Embedded derivative - convertible debentures due 2042	$	(278	)		-		-		(278	)
	$	(1,265	)	$	-	$	-	$	(1,265	)

December 31, 2011:
Assets:
Assets held in rabbi trusts	$	31,698		$	20,569	$	11,129	$	-
Available for sale securities	$	6,776			6,776		-		-
	$	38,474		$	27,345	$	11,129	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(594	)	$	-	$	-	$	(594	)
Embedded derivative - convertible debentures due 2041	$	(392	)		-		-		(392	)
	$	(986	)	$	-	$	-	$	(986	)

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies [Abstract]

Estimated purchase commitments under foundry agreements

The Company estimates its total purchase commitments under the foundry agreements as follows:

2012	$	26,098
2013		21,428
2014		21,028
2015		21,017
2016		12,211

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

+ References + Details

Acquisition Activities (Details) - USD ($) $ in Thousands	6 Months Ended
Acquisition Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 02, 2011
Business Acquisition [Line Items]
Acquisition of business, net of cash acquired	$ (85,493)	$ 0
HiRel Systems [Member]
Business Acquisition [Line Items]
Amount of purchase price allocated to definite-lived intangible assets	43,590
Amount of purchase price allocated to goodwill	$ 25,815

Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	$ 303,634		$ 303,634		$ 260,634
Accumulated amortization	(184,255)		(184,255)		(177,066)
Net Intangible Assets Subject to Amortization	119,379		119,379		83,568
Intangible assets, net	139,738		139,738		103,927
Amortization expense (excluding capitalized software)	3,690	$ 3,796	7,289	$ 7,565
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2012	15,213		15,213
2013	15,272		15,272
2014	15,152		15,152
2015	15,085		15,085
2016	13,413		13,413
HiRel Systems [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense (excluding capitalized software)	694		1,281
Portion of HiRel purchase price allocated to intangible assets	43,950		43,950
Patents and Acquired Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	113,938		113,938		111,428
Accumulated amortization	(90,026)		(90,026)		(89,379)
Capitalized Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	54,216		54,216		53,721
Accumulated amortization	(49,214)		(49,214)		(47,836)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	97,352		97,352		57,723
Accumulated amortization	(29,604)		(29,604)		(26,174)
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	36,428		36,428		36,762
Accumulated amortization	(15,159)		(15,159)		(13,615)
Intangible Assets Not Subject to Amortization (Indefinite-lived)	20,359		20,359		20,359
Non-competition Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Subject to Amortization	1,700		1,700		1,000
Accumulated amortization	$ (252)		$ (252)		$ (62)

Restructuring and Related Activities (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012 USD ($) Y	Jul. 02, 2011 USD ($)	Jun. 30, 2012 USD ($) Y	Jul. 02, 2011 USD ($)	Apr. 03, 2012 USD ($)
Long-Lived Assets [Line Items]
Gain on Sale of Property	$ (12,153)	$ 0	$ (12,153)	$ 0
Period of collection of proceeds from the sale of land \| Y	3		3
Belguim [Member]
Long-Lived Assets [Line Items]
Proceeds from sale of long lived assets held for sale	$ 3,406		$ 3,406
Sale price of long lived assets held for sale					$ 14,200

Income Taxes (Details) - USD ($) $ in Thousands	6 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 02, 2011
Income Taxes [Abstract]
Company's Deferred Tax Assets In Israel		$ 10,024
Unrecognized tax benefits increases resulting from prior period tax positions	$ 3,217

- Definition

The component of total income tax expense for the period comprised of the increase (decrease) in the entity's net foreign deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of applicable enacted tax laws of countries other than the country of domicile.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Deferred Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6510177

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.7)
-URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 289
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Long-Term Debt (Details) - USD ($)	3 Months Ended		6 Months Ended
Long-Term Debt (Details) - USD ($)	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011	Mar. 31, 2012	Dec. 31, 2011
Long-Term Debt [Abstract]
Credit facility	$ 160,000,000		$ 160,000,000			$ 155,000,000
Exchangeable unsecured notes, due 2102	95,042,000		95,042,000			95,042,000
Long-term Debt	462,173,000		462,173,000			399,054,000
Less current portion	0		0			0
Long-term debt, less current portion	462,173,000		$ 462,173,000			399,054,000
Debt Instrument [Line Items]
Common stock, shares repurchased (in shares)			13,948,687
Non-cash amortization of debt discount			$ 1,308,000	$ 861,000
Line of Credit Facility, Maximum Borrowing Capacity	528,000,000		528,000,000		$ 450,000,000
Line of Credit Facility, Amendment Fee Amount			390,000
Convertible Senior Debentures 2040 [Member]
Long-Term Debt [Abstract]
Convertible senior debentures	99,251,000		$ 99,251,000			98,463,000
Debt Instrument [Line Items]
Convertible senior debentures issuance date			Nov. 09, 2010
Principal amount of convertible senior debentures	275,000,000		$ 275,000,000			275,000,000
Principal amount of the debentures	275,000,000		275,000,000			275,000,000
Unamortized discount	(176,310,000)		(176,310,000)			(177,131,000)
Embedded derivative	561,000		561,000			594,000
Carrying value of liability component	99,251,000		99,251,000			98,463,000
Equity component - net carrying value	$ 110,094,000		$ 110,094,000			110,094,000
Stated rate of interest on convertible senior debentures (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)			8.00%
Contractual coupon interest	$ 1,547,000	$ 1,547,000	$ 3,094,000	3,094,000
Non-cash amortization of debt discount	414,000	383,000	821,000	759,000
Non-cash amortization of deferred financing costs	22,000	22,000	44,000	44,000
Non-cash change in value of derivative liability	71,000	69,000	(33,000)	8,000
Total interest expense related to the debentures	2,054,000	2,021,000	3,926,000	3,905,000
Convertible Senior Debentures 2041 [Member]
Long-Term Debt [Abstract]
Convertible senior debentures	50,996,000		$ 50,996,000			50,549,000
Debt Instrument [Line Items]
Convertible senior debentures issuance date			May 13, 2011
Principal amount of convertible senior debentures	150,000,000		$ 150,000,000			150,000,000
Principal amount of the debentures	150,000,000		150,000,000			150,000,000
Unamortized discount	(99,430,000)		(99,430,000)			(99,843,000)
Embedded derivative	426,000		426,000			392,000
Carrying value of liability component	50,996,000		50,996,000			50,549,000
Equity component - net carrying value	$ 62,246,000		$ 62,246,000			$ 62,246,000
Stated rate of interest on convertible senior debentures (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)			8.375%
Contractual coupon interest	$ 844,000	441,000	$ 1,688,000	441,000
Non-cash amortization of debt discount	209,000	102,000	413,000	102,000
Non-cash amortization of deferred financing costs	12,000	6,000	24,000	6,000
Non-cash change in value of derivative liability	109,000	2,000	34,000	2,000
Total interest expense related to the debentures	1,174,000	$ 551,000	2,159,000	$ 551,000
Convertible Senior Debentures 2042 [Member]
Long-Term Debt [Abstract]
Convertible senior debentures	56,884,000		$ 56,884,000
Debt Instrument [Line Items]
Convertible senior debentures issuance date			May 31, 2012
Principal amount of convertible senior debentures	150,000,000		$ 150,000,000
Common stock, shares repurchased (in shares)			13,948,687
Treasury stock, value, acquired, cost method			$ 150,000,000
Principal amount of the debentures	150,000,000		150,000,000
Unamortized discount	(93,394,000)		(93,394,000)
Embedded derivative	278,000		278,000
Carrying value of liability component	56,884,000		56,884,000
Equity component - net carrying value	$ 57,874,000		$ 57,874,000
Stated rate of interest on convertible senior debentures (in hundredths)	2.25%		2.25%
Effective rate of interest on convertible senior debentures (in hundredths)			7.50%
Contractual coupon interest	$ 291,000		$ 291,000
Non-cash amortization of debt discount	74,000		74,000
Non-cash amortization of deferred financing costs	5,000		5,000
Non-cash change in value of derivative liability	42,000		42,000
Total interest expense related to the debentures	$ 412,000		$ 412,000
Debt instrument percentage of conversion price (in hundredths)	130.00%		130.00%
Debt instrument, conversion price amount			$ 15.35
Debt instrument, Percentage of sale price of common stock (in hundredths)	98.00%		98.00%
Debt instrument, initial conversion shares of common stock	84.6937		84.6937
Debt instrument, principal amount of debentures	$ 1,000		$ 1,000
Debt instrument, initial conversion price (in dollars per share)	$ 11.81		$ 11.81
Debt instrument, percentage of initial conversion price premium (in hundredths)	13.75%		13.75%
Debt instrument, conversion price (in dollars per share)	$ 10.38		$ 10.38

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	$ 811	$ 849	$ 1,625	$ 1,676
Interest cost	2,344	2,679	4,718	5,241
Expected return on plan assets	(414)	(398)	(826)	(789)
Amortization of prior service cost (credit)	0	0	0	0
Amortization of gains (losses)	416	254	834	503
Curtailments and settlements	0	0	0	0
Net periodic benefit cost	3,157	3,384	6,351	6,631
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	0	0	0	0
Interest cost	3,923	4,081	7,850	8,149
Expected return on plan assets	(4,770)	(4,888)	(9,486)	(9,541)
Amortization of prior service cost (credit)	550	612	1,100	1,253
Amortization of gains (losses)	3,174	2,201	6,285	4,303
Curtailments and settlements	0	148	0	148
Net periodic benefit cost	2,877	2,154	5,749	4,312
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	18	20	36	39
Interest cost	131	146	261	292
Amortization of transition obligation	8	12	16	24
Amortization of prior service cost (credit)	(102)	(111)	(204)	(221)
Amortization of gains (losses)	(26)	(61)	(48)	(122)
Net periodic benefit cost	29	6	61	12
Foreign Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net service cost	63	71	127	138
Interest cost	71	73	144	142
Amortization of transition obligation	0	0	0	0
Amortization of prior service cost (credit)	0	0	0	0
Amortization of gains (losses)	0	0	0	0
Net periodic benefit cost	$ 134	$ 144	$ 271	$ 280

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 1,153	$ 3,328	$ 2,408	$ 4,736
Unrecognized Compensation Cost					$ 7,475
Expiration date of the 2007 stock incentive plan			May 22, 2017
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
Outstanding:
Balance			384,000
Balance (in dollars per share)			$ 15.40
Granted (in shares)			0
Granted (in dollars per share)			$ 0.00
Exercised (in shares)			(22,095)
Exercised (in dollars per share)			$ 7.89
Cancelled or forfeited (in shares)			(232,000)
Cancelled or forfeited (in dollars per share)			$ 16.29
Balance	130,000		130,000
Balance (in dollars per share)	$ 15.08		$ 15.08
Weighted average remaining contractual life of options outstanding at June 30, 2012			4 years
Vested and expected to vest [Abstract]
Vested and expected to vest (in shares)					130,000
Vested and expected to vest (in dollars per share)	$ 15.08		$ 15.40		$ 15.08
Remaining contractual term of options, vested and expected to vest at June 30, 2012			4 years
Exercisable (in shares)					99,000
Exercisable (in dollars per share)					$ 14.88
Remaining contractual term of options, exercisable at June 30, 2012			3 years 8 months 8 days
Share-based compensation arrangement by share-based payment award, options, vested during period (in shares)			30,000
Share-based compensation arrangement by share-based payment award, options, non-vested, outstanding (in shares)					31,000
Share-based compensation arrangement by share-based payment award, options, non-vested, weighted average grant date fair value (in dollars per share)					$ 10.07
Stock price per share (in dollars per share)					$ 9.43
Share-based compensation arrangement by share-based payment award, options, exercisable, intrinsic value					$ 0
Stock options exercised (in shares)			22,095
Intrinsic value under share based compensation scheme			$ 110
Outstanding:
Balance (in shares)			891,000
Balance (in dollars per share)			$ 12.58
Granted (in shares)			437,000
Granted (in dollars per share)			$ 12.31
Vested (in shares)			(12,000)
Vested (in dollars per share)			$ 8.29
Cancelled or forfeited (in shares)			0
Cancelled or forfeited (in dollars per share)			$ 0.00
Balance (in shares)	1,316,000		1,316,000
Balance (in dollars per share)	$ 12.53		$ 12.53
Expected to vest at June 30, 2012 (in shares)					1,316,000
Number of RSUs with performance-based vesting criteria expected to vest					324,000
Number of RSUs with performance-based vesting criteria expected to vest					233,000
Number of RSUs with performance-based vesting criteria expected to vest					276,000
Outstanding:
Balance (in shares)			87,000
Granted (in shares)			10,000
Granted (in dollars per share)			$ 9.33
Redeemed for common stock			0
Balance (in shares)	97,000		97,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 20	(245)	$ 47	$ (125)
Unrecognized Compensation Cost					$ 44
Weighted Average Remaining Amortization Periods			10 months 24 days
Equity Awards Vested Upon The Passing Of Dr. Felix Zandman				77,334
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	1,133	3,573	$ 2,268	$ 4,639
Unrecognized Compensation Cost					7,431
Weighted Average Remaining Amortization Periods			1 year 7 months 6 days
Equity Awards Vested Upon The Passing Of Dr. Felix Zandman				98,375
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 0	$ 0	$ 93	$ 222
Unrecognized Compensation Cost					$ 0
Weighted Average Remaining Amortization Periods			0 years
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
Performance Vested Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Awards Vested Upon The Passing Of Dr. Felix Zandman				202,330

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Segment Information (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Segment Reporting Information [Line Items]
Product Sales	$ 586,667	$ 708,279	$ 1,123,294	$ 1,402,074
Royalty Revenues	1,532	1,559	3,452	2,915
Total Revenue	588,199	709,838	1,126,746	1,404,989
Gross Margin	147,619	212,190	284,328	426,853
Gain on Sale of Property	12,153	0	12,153	0
Operating Income (Loss)	72,883	115,505	123,228	237,703
MOSFETS Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	111,326	153,180	206,027	296,081
Royalty Revenues	37	65	174	162
Total Revenue	111,363	153,245	206,201	296,243
Gross Margin	18,709	42,811	29,326	82,250
Operating Income	8,676	32,522	9,999	61,932
Diodes Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	136,008	169,613	256,142	329,030
Royalty Revenues	0	0	0	0
Total Revenue	136,008	169,613	256,142	329,030
Gross Margin	28,676	43,699	53,730	82,839
Operating Income	22,682	37,208	42,041	70,008
Optoelectronic Components Segments [Member]
Segment Reporting Information [Line Items]
Product Sales	58,083	63,761	108,695	121,467
Royalty Revenues	0	0	27	42
Total Revenue	58,083	63,761	108,722	121,509
Gross Margin	18,605	21,961	35,899	41,909
Operating Income	15,192	18,330	29,237	34,687
Resistors And Inductors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	164,903	167,430	322,157	339,349
Royalty Revenues	1,495	1,494	3,251	2,711
Total Revenue	166,398	168,924	325,408	342,060
Gross Margin	55,073	58,956	109,332	120,114
Operating Income	46,688	51,757	93,200	105,861
Capacitors Segment [Member]
Segment Reporting Information [Line Items]
Product Sales	116,347	154,295	230,273	316,147
Royalty Revenues	0	0	0	0
Total Revenue	116,347	154,295	230,273	316,147
Gross Margin	26,556	44,763	56,041	99,741
Operating Income	20,951	38,584	44,868	86,917
Unallocated Amount to Segment [Member]
Segment Reporting Information [Line Items]
Operating Income	$ (53,459)	(59,007)	$ (108,270)	(117,813)
Executive Compensation Charge [Member]
Segment Reporting Information [Line Items]
Operating Income		$ (3,889)		$ (3,889)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Numerator for basic earnings per share:
Net earnings	$ 45,671	$ 82,095	$ 79,483	$ 157,382
Adjustment to the numerator for continuing operations and net earnings:
Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax	72	48	162	94
Numerator for diluted earnings per share:
Net earnings	$ 45,743	$ 82,143	$ 79,645	$ 157,476
Denominator for basic earnings per share:
Weighted average shares outstanding - basic (in shares)	152,462	160,801	154,831	163,006
Effect of dilutive securities:
Convertible and exchangeable debt instruments	6,176	9,166	6,176	9,464
Restricted stock units	513	428	489	385
Other	98	250	100	288
Dilutive potential common shares	6,787	9,844	6,765	10,137
Denominator for diluted earnings per share:
Weighted average shares outstanding - diluted (in shares)	159,249	170,645	161,596	173,143
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.30	$ 0.51	$ 0.51	$ 0.97
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.29	$ 0.48	$ 0.49	$ 0.91
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	0	19,809	0
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)			$ 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	4,332	7,885	2,166
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)			$ 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)	4,328	0	2,164	0
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share (in dollars per share)			$ 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)	296	0	244	2
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)	8,824	8,824	8,824	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)	194	101	201	69

Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Assets:
Assets held in rabbi trusts	$ 33,097	$ 31,698
Available for sale securities	6,705	6,776
Fair Value Assets	39,802	38,474
Liabilities:
Fair Value Liabilities	(1,265)	(986)
Long-term Debt, Fair Value	708,500	533,900
Carrying value of long-term debt, excluding derivative liabilities	460,908	398,068
Fair Value, Inputs, Level 1 [Member]
Assets:
Assets held in rabbi trusts	21,511	20,569
Available for sale securities	6,705	6,776
Fair Value Assets	28,216	27,345
Liabilities:
Fair Value Liabilities	0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
Assets held in rabbi trusts	11,586	11,129
Available for sale securities	0	0
Fair Value Assets	11,586	11,129
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	(1,265)	(986)
Convertible Senior Debentures 2040 [Member]
Liabilities:
Embedded derivative	$ (561)	(594)
Convertible senior debentures	Nov. 09, 2010
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	(561)	(594)
Convertible Senior Debentures 2041 [Member]
Liabilities:
Embedded derivative	$ (426)	(392)
Convertible senior debentures	May 13, 2011
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	(426)	$ (392)
Convertible Senior Debentures 2042 [Member]
Liabilities:
Embedded derivative	$ (278)
Convertible senior debentures	May 31, 2012
Convertible Senior Debentures 2042 [Member] \| Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	$ 0
Convertible Senior Debentures 2042 [Member] \| Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0
Convertible Senior Debentures 2042 [Member] \| Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	$ (278)

Commitments and Contingencies (Details) $ in Thousands	3 Months Ended	6 Months Ended
Commitments and Contingencies (Details) $ in Thousands	Jun. 30, 2012 USD ($)	Jun. 30, 2012 USD ($)
Commitments and Contingencies [Abstract]
Executive Compensation Charge	$ 3,889	$ 3,889
Estimated purchase commitments under foundry agreements [Abstract]
2012	26,098	26,098
2013	21,428	21,428
2014	21,028	21,028
2015	21,017	21,017
2016	$ 12,211	$ 12,211