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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2008
Income (loss) from continuing operations before taxes and noncontrolling interests [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Domestic |  |  |  |  |  |  |  |  | $ (50,106)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ (26,065)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ (15,995)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic |
Foreign |  |  |  |  |  |  |  |  | 217,249 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 202,470 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 186,032 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign |
Income before taxes |  |  |  |  |  |  |  |  | 167,143 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 176,405 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 170,037 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Current income tax expense: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  | (27,031)us-gaap_CurrentFederalTaxExpenseBenefit | (603)us-gaap_CurrentFederalTaxExpenseBenefit | 8,409 us-gaap_CurrentFederalTaxExpenseBenefit |
State and local |  |  |  |  |  |  |  |  | 386 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 280 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 574 us-gaap_CurrentStateAndLocalTaxExpenseBenefit |
Foreign |  |  |  |  |  |  |  |  | 60,282 us-gaap_CurrentForeignTaxExpenseBenefit | 51,225 us-gaap_CurrentForeignTaxExpenseBenefit | 44,351 us-gaap_CurrentForeignTaxExpenseBenefit |
Total current income tax expense |  |  |  |  |  |  |  |  | 33,637 us-gaap_CurrentIncomeTaxExpenseBenefit | 50,902 us-gaap_CurrentIncomeTaxExpenseBenefit | 53,334 us-gaap_CurrentIncomeTaxExpenseBenefit |
Deferred income tax expense: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  | 7,999 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 2,215 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (8,557)us-gaap_DeferredFederalIncomeTaxExpenseBenefit |
State and local |  |  |  |  |  |  |  |  | 204 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 92 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (240)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit |
Foreign |  |  |  |  |  |  |  |  | 7,460 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (573)us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 1,969 us-gaap_DeferredForeignIncomeTaxExpenseBenefit |
Total deferred income tax expense |  |  |  |  |  |  |  |  | 15,663 us-gaap_DeferredIncomeTaxExpenseBenefit | 1,734 us-gaap_DeferredIncomeTaxExpenseBenefit | (6,828)us-gaap_DeferredIncomeTaxExpenseBenefit |
Total income tax expense |  |  |  |  |  |  |  |  | 49,300 us-gaap_IncomeTaxExpenseBenefit | 52,636 us-gaap_IncomeTaxExpenseBenefit | 46,506 us-gaap_IncomeTaxExpenseBenefit |
Deferred tax assets: |  |  |  |  |  |  |  |  |  |  |  |
Pension and other retiree obligations | 43,393 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits |  |  |  | 34,343 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits |  |  |  | 43,393 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits | 34,343 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits |  |
Inventories | 8,013 us-gaap_DeferredTaxAssetsInventory |  |  |  | 8,759 us-gaap_DeferredTaxAssetsInventory |  |  |  | 8,013 us-gaap_DeferredTaxAssetsInventory | 8,759 us-gaap_DeferredTaxAssetsInventory |  |
Net operating loss carryforwards | 198,677 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |  |  |  | 182,691 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |  |  |  | 198,677 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 182,691 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |  |
Tax credit carryforwards | 25,046 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards |  |  |  | 20,780 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards |  |  |  | 25,046 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards | 20,780 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards |  |
Other accruals and reserves | 32,376 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals |  |  |  | 31,469 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals |  |  |  | 32,376 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | 31,469 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals |  |
Total gross deferred tax assets | 307,505 us-gaap_DeferredTaxAssetsGross |  |  |  | 278,042 us-gaap_DeferredTaxAssetsGross |  |  |  | 307,505 us-gaap_DeferredTaxAssetsGross | 278,042 us-gaap_DeferredTaxAssetsGross |  |
Less valuation allowance | (186,614)us-gaap_DeferredTaxAssetsValuationAllowance |  |  |  | (183,289)us-gaap_DeferredTaxAssetsValuationAllowance |  |  |  | (186,614)us-gaap_DeferredTaxAssetsValuationAllowance | (183,289)us-gaap_DeferredTaxAssetsValuationAllowance |  |
Deferred tax assets, net | 120,891 us-gaap_DeferredTaxAssetsNet |  |  |  | 94,753 us-gaap_DeferredTaxAssetsNet |  |  |  | 120,891 us-gaap_DeferredTaxAssetsNet | 94,753 us-gaap_DeferredTaxAssetsNet |  |
Deferred tax liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Tax over book depreciation | (10,257)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |  |  |  | (10,652)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |  |  |  | (10,257)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (10,652)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |  |
Intangible assets other than goodwill | (20,507)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |  |  |  | (1,539)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |  |  |  | (20,507)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | (1,539)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |  |
Earnings not permanently reinvested | (25,334)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings |  |  |  | (1,652)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings |  |  |  | (25,334)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings | (1,652)us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings |  |
Convertible debentures | (175,935)us-gaap_DeferredTaxLiabilitiesFinancingArrangements |  |  |  | (162,371)us-gaap_DeferredTaxLiabilitiesFinancingArrangements |  |  |  | (175,935)us-gaap_DeferredTaxLiabilitiesFinancingArrangements | (162,371)us-gaap_DeferredTaxLiabilitiesFinancingArrangements |  |
Other - net | (3,590)us-gaap_DeferredTaxLiabilitiesOther |  |  |  | (2,741)us-gaap_DeferredTaxLiabilitiesOther |  |  |  | (3,590)us-gaap_DeferredTaxLiabilitiesOther | (2,741)us-gaap_DeferredTaxLiabilitiesOther |  |
Total gross deferred tax liabilities | (235,623)us-gaap_DeferredTaxLiabilities |  |  |  | (178,955)us-gaap_DeferredTaxLiabilities |  |  |  | (235,623)us-gaap_DeferredTaxLiabilities | (178,955)us-gaap_DeferredTaxLiabilities |  |
Net deferred tax assets (liabilities) | (114,732)us-gaap_DeferredTaxAssetsLiabilitiesNet |  |  |  | (84,202)us-gaap_DeferredTaxAssetsLiabilitiesNet |  |  |  | (114,732)us-gaap_DeferredTaxAssetsLiabilitiesNet | (84,202)us-gaap_DeferredTaxAssetsLiabilitiesNet |  |
Reconciliation of income tax expense at federal statutory rate to actual income tax provision [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Tax at statutory rate |  |  |  |  |  |  |  |  | 58,500 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 61,742 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 59,513 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate |
State income taxes, net of U.S. federal tax benefit |  |  |  |  |  |  |  |  | 384 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 242 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 217 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes |
Effect of foreign operations |  |  |  |  |  |  |  |  | (27,372)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (18,696)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (19,083)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential |
Tax on earnings not permanently reinvested |  |  |  |  |  |  |  |  | 25,728 us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings | 0 us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings | 0 us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings |
Unrecognized tax benefits |  |  |  |  |  |  |  |  | (21,603)us-gaap_IncomeTaxReconciliationTaxContingencies | 2,862 us-gaap_IncomeTaxReconciliationTaxContingencies | 6,626 us-gaap_IncomeTaxReconciliationTaxContingencies |
Change in valuation allowance on deferred tax asset |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (285)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (4,036)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance |
Foreign income taxable in the U.S. |  |  |  |  |  |  |  |  | 13,499 vsh_Foreignincometaxableus | 11,961 vsh_Foreignincometaxableus | 7,476 vsh_Foreignincometaxableus |
U.S. foreign tax credits |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxReconciliationTaxCreditsForeign | 0 us-gaap_IncomeTaxReconciliationTaxCreditsForeign | (4,257)us-gaap_IncomeTaxReconciliationTaxCreditsForeign |
Effect of statutory rate changes on deferred tax assets |  |  |  |  |  |  |  |  | 226 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | (2,867)us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate | 0 us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate |
Other |  |  |  |  |  |  |  |  | (62)us-gaap_IncomeTaxReconciliationOtherAdjustments | (2,323)us-gaap_IncomeTaxReconciliationOtherAdjustments | 50 us-gaap_IncomeTaxReconciliationOtherAdjustments |
Total income tax expense |  |  |  |  |  |  |  |  | 49,300 us-gaap_IncomeTaxExpenseBenefit | 52,636 us-gaap_IncomeTaxExpenseBenefit | 46,506 us-gaap_IncomeTaxExpenseBenefit |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound | 2,400 us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound |  |  |  |  |  |  |  | 2,400 us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound |  |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound | 2,700 us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound |  |  |  |  |  |  |  | 2,700 us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Discrete Tax Items Included Income Tax Expense | (1,228)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | 0 vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | 0 vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | 0 vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | 0 vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | (2,867)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | 0 vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | (1,330)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | (1,228)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | (4,197)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense | (4,036)vsh_DiscreteTaxItemsIncludedIncomeTaxExpense |
Income tax uncertainties [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Cash repatriated during the current period |  |  |  |  |  |  |  |  | 4,588 us-gaap_ForeignEarningsRepatriated |  | 72,100 us-gaap_ForeignEarningsRepatriated |
Foreign earnings without provision for US Tax | 2,686,284 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |  |  |  |  |  |  | 2,686,284 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |  |
Additional expected repatriation |  |  |  |  |  |  |  |  |  |  |  | 112,500 vsh_AdditionalExpectedRepatriation
Net income taxes paid (refunded) |  |  |  |  |  |  |  |  | 62,051 us-gaap_IncomeTaxesPaid | 44,757 us-gaap_IncomeTaxesPaid | 46,611 us-gaap_IncomeTaxesPaid |
Company accrued interest and penalties related to the unrecognized tax benefits | 3,104 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |  |  |  | 7,766 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |  |  |  | 3,104 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued | 7,766 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued |  |
Company recognized interest and penalties. |  |  |  |  |  |  |  |  | 1,839 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | 2,218 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | 2,833 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense |
Unrecognized tax benefits [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  |  |  | 45,877 us-gaap_UnrecognizedTaxBenefits |  |  |  | 51,771 us-gaap_UnrecognizedTaxBenefits | 45,877 us-gaap_UnrecognizedTaxBenefits | 51,771 us-gaap_UnrecognizedTaxBenefits | 48,152 us-gaap_UnrecognizedTaxBenefits |
Addition based on tax positions related to the current year |  |  |  |  |  |  |  |  | 1,641 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions | 0 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions | 665 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions |
Addition based on tax positions related to prior years |  |  |  |  |  |  |  |  | 6,484 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions | 4,015 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions | 3,498 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions |
Currency translation adjustments |  |  |  |  |  |  |  |  | (1,387)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation | 310 us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation | (215)us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation |
Reduction based on tax positions related to prior years |  |  |  |  |  |  |  |  | 0 us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions | (2,054)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions | 0 us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions |
Reduction for settlements |  |  |  |  |  |  |  |  | (3,556)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities | (7,316)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities | (329)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities |
Reduction for lapses of statute of limitation |  |  |  |  |  |  |  |  | (22,476)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations | (849)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations | 0 us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations |
Balance at end of year | 26,583 us-gaap_UnrecognizedTaxBenefits |  |  |  | 45,877 us-gaap_UnrecognizedTaxBenefits |  |  |  | 26,583 us-gaap_UnrecognizedTaxBenefits | 45,877 us-gaap_UnrecognizedTaxBenefits | 51,771 us-gaap_UnrecognizedTaxBenefits |
California Research Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Available tax credit carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
California Research Credit | 10,926 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch / us-gaap_TaxCreditCarryforwardAxis = us-gaap_ResearchMember |  |  |  |  |  |  |  | 10,926 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch / us-gaap_TaxCreditCarryforwardAxis = us-gaap_ResearchMember |  |  |
Expiration Date |  |  |  |  |  |  |  |  | No expiration |  |  |
U.S. Foreign Tax Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Available tax credit carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Federal Alternative Minimum Tax | 11,093 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax / us-gaap_TaxCreditCarryforwardAxis = vsh_UsForeignTaxCreditMember |  |  |  |  |  |  |  | 11,093 us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax / us-gaap_TaxCreditCarryforwardAxis = vsh_UsForeignTaxCreditMember |  |  |
Minimum [Member] | U.S. Foreign Tax Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Available tax credit carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration Date |  |  |  |  |  |  |  |  | 2020.00 |  |  |
Maximum [Member] | U.S. Foreign Tax Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Available tax credit carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration Date |  |  |  |  |  |  |  |  | 2022.00 |  |  |
AUSTRIA [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 14,515 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = vsh_AustriaMember |  |  |  |  |  |  |  | 14,515 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = vsh_AustriaMember |  |  |
Expiration date |  |  |  |  |  |  |  |  | No expiration |  |  |
BELGIUM [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 173,541 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_BE |  |  |  |  |  |  |  | 173,541 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_BE |  |  |
Expiration date |  |  |  |  |  |  |  |  | No expiration |  |  |
BRAZIL [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 14,876 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_BR |  |  |  |  |  |  |  | 14,876 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_BR |  |  |
Expiration date |  |  |  |  |  |  |  |  | No expiration |  |  |
Germany [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 42,968 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_DE |  |  |  |  |  |  |  | 42,968 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_DE |  |  |
Expiration date |  |  |  |  |  |  |  |  | No expiration |  |  |
Israel [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 62,528 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_IL |  |  |  |  |  |  |  | 62,528 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_IL |  |  |
Expiration date |  |  |  |  |  |  |  |  | No expiration |  |  |
NETHERLANDS [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 23,411 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_NL |  |  |  |  |  |  |  | 23,411 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = country_NL |  |  |
NETHERLANDS [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2015 |  |  |
NETHERLANDS [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2023 |  |  |
California [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 53,979 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = vsh_CaliforniaMember |  |  |  |  |  |  |  | 53,979 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = vsh_CaliforniaMember |  |  |
California [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2016 |  |  |
California [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2034 |  |  |
Pennsylvania [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforward | 736,159 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = stpr_PA |  |  |  |  |  |  |  | 736,159 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = stpr_PA |  |  |
Pennsylvania [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2018 |  |  |
Pennsylvania [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
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United States [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
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United States [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2033 |  |  |
United States [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Expiration date |  |  |  |  |  |  |  |  | 2034 |  |  |
BCcomponents acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |
Net operating loss carryforwards [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
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