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Long-Term Debt (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended |  |  | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 Exchangeable Unsecured Notes, Due 2102 [Member] | Dec. 31, 2012 Exchangeable Unsecured Notes, Due 2102 [Member] | Jul. 05, 2010 Exchangeable Unsecured Notes, Due 2102 [Member] | Dec. 31, 2013 Convertible Senior Debentures, Due 2040 [Member] | Dec. 31, 2012 Convertible Senior Debentures, Due 2040 [Member] | Dec. 31, 2011 Convertible Senior Debentures, Due 2040 [Member] | Dec. 31, 2013 Convertible Senior Debentures, Due 2041 [Member] | Dec. 31, 2012 Convertible Senior Debentures, Due 2041 [Member] | Dec. 31, 2011 Convertible Senior Debentures, Due 2041 [Member] | Dec. 31, 2013 Convertible Senior Debentures 2042 [Member] | Dec. 31, 2012 Convertible Senior Debentures 2042 [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 Minimum [Member]
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 640,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Initiation Date | Aug. 08, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expiration date | Aug. 08, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum incremental revolving commitments | 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate description | Borrowings under the Credit Facility bear interest at the London Interbank Offered Rate (“LIBOR”) plus an interest margin. The applicable interest margin is based on the Company's leverage ratio. Based on the Company's current leverage ratio, borrowings bear interest at LIBOR plus 1.75%. The interest rate on the Company’s borrowings will increase to LIBOR plus 2.00% if the Company’s leverage ratio equals or exceeds 2.50 to 1 and will decrease to LIBOR plus 1.50% if the Company’s leverage ratio decreases below 1.50 to 1. Vishay is also required to pay facility fees on the entire commitment amount based on the Company's leverage ratio. Based on the Company's current leverage ratio, the facility fee is 0.35% per annum. Such facility fee will increase to 0.50% per annum if the Company’s leverage ratio equals or exceeds 2.50 to 1 and will decrease to 0.30% per annum if the leverage ratio decreases below 1.50 to 1. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (in hundredths) | 1.75% |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% | 1.50%
Commitment fees (in hundredths) | 0.35% |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% | 0.30%
Basis increase upon leverage ratio decrease (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50 | 1.50
Covenant terms | The Credit Facility permits the Company to repurchase shares of its common stock or pay cash dividends up to a permitted capacity, conditioned upon Vishay maintaining (i) a pro forma leverage ratio of 2.75 to 1.00, (ii) a pro forma interest expense coverage ratio of 2.00 to 1.00, and (iii) $300,000 of available liquidity, as defined in the Credit Facility. The permitted capacity to repurchase shares of the Company's outstanding common stock or pay cash dividends under the Credit Facility increases each quarter by an amount equal to 20% of net income. At December 31, 2013, the Credit Facility allows the Company to repurchase its common stock or pay cash dividends up to $204,596 (See Note 7). The amount and timing of any future stock repurchases or cash dividends remains subject to authorization of the Company's Board of Directors. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available liquidity | 300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Covenant Compliance | The Credit Facility also contains customary events of default, including, but not limited to, failure to pay principal or interest, failure to pay or default under other material debt, material misrepresentation or breach of warranty, violation of certain covenants, a change of control, the commencement of bankruptcy proceedings, the insolvency of Vishay or certain of its significant subsidiaries, and the rendering of a judgment in excess of $25,000 against Vishay or certain of its significant subsidiaries. Upon the occurrence of an event of default under the Credit Facility, the Company's obligations under the credit facility may be accelerated and the lending commitments under the credit facility terminated. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Permitted stock repurchase or cash dividend payment capacity under credit facility | 204,596 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available borrowing capacity | 518,345 | 431,295 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding | 7,655 | 7,705 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Committed and uncommitted short-term credit lines | 27,400 | 18,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility accelerated repayment minimum judgement | 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | 364,911 | 392,931 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt, Noncurrent |  |  |  |  |  |  | 101,846 | 100,166 |  | 52,264 | 51,399 |  | 58,159 | 57,324 |  |
Exchangeable unsecured notes, due 2102 |  |  |  | 38,642 | 95,042 |  |  |  |  |  |  |  |  |  |  |
Credit facility | 114,000 | 89,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less current portion | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, less current portion | 364,911 | 392,931 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible senior debentures issuance date |  |  |  |  |  |  | Nov. 09, 2010 |  |  | May 13, 2011 |  |  | May 31, 2012 |  |  |
Debt maturity date |  |  |  |  |  |  | Nov. 15, 2040 |  |  | May 15, 2041 |  |  | Jun. 01, 2042 |  |  |
Stated rate of interest on debt (in hundredths) |  |  |  |  |  |  | 2.25% |  |  | 2.25% |  |  | 2.25% |  |  |
Effective rate of interest on convertible senior debentures (in hundredths) |  |  |  |  |  |  | 8.00% |  |  | 8.375% |  |  | 7.50% |  |  |
Debt instrument percentage of conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  | 130.00% |  |  | 130.00% |  |  |
Debt Instrument Effective Conversion Price Amount |  |  |  | $ 15.39 |  |  | $ 18.04 |  |  | $ 24.73 |  |  | $ 15.35 |  |  |
Debt instrument, Percentage of sale price of common stock (in hundredths) |  |  |  |  |  |  | 98.00% |  |  | 98.00% |  |  |  | 98.00% |  |
Debt instrument, initial conversion shares of common stock (shares per $1000 principal) |  |  |  |  |  |  | 72.0331 |  |  | 52.5659 |  |  | 84.6937 |  |  |
Convertible senior debentures call date |  |  |  |  |  |  | Nov. 20, 2020 |  |  | May 20, 2021 |  |  | Jun. 07, 2022 |  |  |
Principal amount of notes exchanged |  |  |  | 56,400 |  |  |  |  |  |  |  |  |  |  |  |
Common shares issued for conversion of exchangeable notes |  |  |  | 3,664,729 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, initial conversion price (in dollars per share) |  |  |  |  |  |  | $ 13.88 |  |  | $ 19.02 |  |  | $ 11.81 |  |  |
Liability and equity components of convertible debentures [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount of the debentures | 575,000 | 575,000 |  | 38,642 |  | 105,000 | 275,000 | 275,000 |  | 150,000 | 150,000 |  | 150,000 | 150,000 |  |
Unamortized discount | (363,768) | (367,414) |  |  |  |  | (173,645) | (175,456) |  | (98,085) | (99,000) |  | (92,038) | (92,958) |  |
Embedded derivative | 1,037 | 1,303 |  |  |  |  | 491 | 622 |  | 349 | 399 |  | 197 | 282 |  |
Carrying value of liability component | 212,269 | 208,889 |  |  |  |  | 101,846 | 100,166 |  | 52,264 | 51,399 |  | 58,159 | 57,324 |  |
Equity component - net carrying value | 230,214 | 230,214 |  |  |  |  | 110,094 | 110,094 |  | 62,246 | 62,246 |  | 57,874 | 57,874 |  |
Interest expense related to debentures [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual coupon interest | 12,938 | 11,541 | 8,316 |  |  |  | 6,188 | 6,188 | 6,188 | 3,375 | 3,375 | 2,128 | 3,375 | 1,978 |  |
Non-cash amortization of debt discount | 3,646 | 3,028 | 2,046 |  |  |  | 1,811 | 1,675 | 1,548 | 915 | 843 | 498 | 920 | 510 |  |
Non-cash amortization of deferred financing costs | 189 | 165 | 117 |  |  |  | 88 | 88 | 88 | 47 | 45 | 29 | 54 | 32 |  |
Non-cash change in value of derivative liability | (266) | 81 | 456 |  |  |  | (131) | 28 | 275 | (50) | 7 | 181 | (85) | 46 |  |
Total interest expense related to the debentures | 16,507 | 14,815 | 10,935 |  |  |  | 7,956 | 7,979 | 8,099 | 4,287 | 4,270 | 2,836 | 4,264 | 2,566 |  |
Number of shares of common stock the Notes are exchangeable into (in shares) |  |  |  | 2,511,742 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument percentage of conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  | 130.00% |  |  | 130.00% |  |  |
Aggregate annual maturities of long-term debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 | 114,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | 613,642 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest paid | $ 17,647 | $ 16,578 | $ 14,084 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
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- Definition Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 5 + Details
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- Definition Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 5 + Details
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- Definition Identification of whether the entity has been in compliance with any credit facility debt covenants during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Date the credit facility first became available, in CCYY-MM-DD format. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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- Definition Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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 + Details
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- Definition The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1314-112600 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1336-112600 + Details
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