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Stock-Based Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 27, 2014 | Sep. 28, 2013 | Sep. 27, 2014 | Sep. 28, 2013
Stock-Based Compensation [Abstract] |  |  |  |  |
Executive compensation charges (credit) |  |  | $ 0 |  | $ (1,778)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense recognized | (42) | 382 | 1,703 |  | (1,210)
Unrecognized Compensation Cost | 10,808 |  | 10,808 |  |
Unrecognized compensation cost not expected to be recognized | 6,485 |  | 6,485 |  |
Expiration date of the 2007 stock incentive plan |  |  | May 20, 2024 |  |
Maximum number of shares granted under restricted stock, unrestricted stock, RSU's and stock options to officers, employees and employee directors (in shares) | 6,500,000 |  | 6,500,000 |  |
Stock Options Outstanding: |  |  |  |  |
Balance |  |  | 109,000 |  |
Balance (in dollars per share) |  |  | $ 15.24 |  |
Granted (in shares) |  |  | 0 |  |
Granted (in dollars per share) |  |  | $ 0 |  |
Exercised (in shares) |  |  | (4,337) |  |
Exercised (in dollars per share) |  |  | $ 11.62 |  |
Cancelled or forfeited (in shares) |  |  | 0 |  |
Cancelled or forfeited (in dollars per share) |  |  | $ 0 |  |
Balance | 105,000 |  | 105,000 |  |
Balance (in dollars per share) | $ 15.38 |  | $ 15.38 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract] |  |  |  |  |
Vested and expected to vest (in shares) | 105,000 |  | 105,000 |  |
Vested and expected to vest (in dollars per share) | $ 15.38 |  | $ 15.38 |  |
Exercisable (in shares) | 105,000 |  | 105,000 |  |
Stock price (in dollars per share) | $ 14.42 |  | $ 14.42 |  |
Share-based compensation arrangement by share-based payment award, options, exercisable, intrinsic value | 42 |  | 42 |  |
Stock options exercised (in shares) |  |  | 4,337 |  |
Intrinsic value under share based compensation scheme |  |  | 18 |  |
Stock Options [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense recognized | 0 | 0 | 0 |  | 18
Unrecognized Compensation Cost | 0 |  | 0 |  |
Weighted Average Remaining Amortization Periods |  |  | 0 years |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense recognized | (42) | 382 | 1,572 |  | (1,336)
Unrecognized Compensation Cost | 10,808 |  | 10,808 |  |
Weighted Average Remaining Amortization Periods |  |  | 1 year 2 months 12 days |  |
Equity Awards Other Than Options Outstanding: |  |  |  |  |
Balance (in shares) |  |  | 1,059,000 |  |
Balance (in dollars per share) |  |  | $ 13.40 |  |
Granted (in shares) |  |  | 336,000 |  |
Granted (in dollars per share) |  |  | $ 13.48 |  |
Vested (in shares) |  |  | (146,000) | [1] |
Vested (in dollars per share) |  |  | $ 15.87 | [1] |
Cancelled or forfeited (in shares) |  |  | (102,000) |  |
Cancelled or forfeited (in dollars per share) |  |  | $ 17.45 |  |
Balance (in shares) | 1,147,000 |  | 1,147,000 |  |
Balance (in dollars per share) | $ 12.75 |  | $ 12.75 |  |
Expected to vest as of September 27, 2014 (in shares) | 649,000 |  | 649,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 1,147,000 |  | 1,147,000 |  |
Phantom Share Units (PSUs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock-based compensation expense recognized | 0 | 0 | 131 |  | 108
Unrecognized Compensation Cost | $ 0 |  | $ 0 |  |
Weighted Average Remaining Amortization Periods |  |  | 0 years |  |
Equity Awards Other Than Options Outstanding: |  |  |  |  |
Balance (in shares) |  |  | 107,000 |  |
Granted (in shares) |  |  | 10,000 |  |
Granted (in dollars per share) |  |  | $ 13.12 |  |
Dividend equivalents issued |  |  | 2,000 |  |
Redeemed for common stock |  |  | 0 |  |
Balance (in shares) | 119,000 |  | 119,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 119,000 |  | 119,000 |  |
Scheduled to Vest January 1, 2015 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Equity Awards Other Than Options Outstanding: |  |  |  |  |
Balance (in shares) | 276,000 |  | 276,000 |  |
Expected to vest as of September 27, 2014 (in shares) | 0 |  | 0 |  |
Not expected to vest as of September 27, 2014 | 276,000 |  | 276,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 276,000 |  | 276,000 |  |
Scheduled to Vest January 1, 2016 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Equity Awards Other Than Options Outstanding: |  |  |  |  |
Balance (in shares) | 222,000 |  | 222,000 |  |
Expected to vest as of September 27, 2014 (in shares) | 0 |  | 0 |  |
Not expected to vest as of September 27, 2014 | 222,000 |  | 222,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 222,000 |  | 222,000 |  |
Scheduled to Vest January 1, 2017 [Member] | Performance Vested Restricted Stock Units [Member] |  |  |  |  |
Equity Awards Other Than Options Outstanding: |  |  |  |  |
Balance (in shares) | 192,000 |  | 192,000 |  |
Expected to vest as of September 27, 2014 (in shares) | 192,000 |  | 192,000 |  |
Not expected to vest as of September 27, 2014 | 0 |  | 0 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance | 192,000 |  | 192,000 |  |
[1] | The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.

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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition As of the balance sheet date, the number of equity-based payment instruments, excluding stock (or unit) options into which fully vested and expected to vest equity-based payment instruments other than stock (or unit) options outstanding can be converted under the plan. + References No definition available. + Details
Name: | vsh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber
Namespace Prefix: | vsh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition As of the balance sheet date, the number of equity instruments other than options that are not expected to vest. + References No definition available. + Details
Name: | vsh_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNotExpectedToVestOutstandingNumber
Namespace Prefix: | vsh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Expiration date of the 2007 Stock Incentive Plan. + References No definition available. + Details
Name: | vsh_ShareBasedCompensationArrangementExpirationOfAuthorityToGrantEquityBasedCompensation
Namespace Prefix: | vsh_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of phantom stock units redeemed for common stock. + References No definition available. + Details
Name: | vsh_ShareBasedCompensationArrangementPhantomStockUnitsRedeemedForCommonStock
Namespace Prefix: | vsh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrecognized costs of unvested share-based compensation awards not expected to vest. + References No definition available. + Details
Name: | vsh_UnrecognizedCompensationCostNotExpectedToBeRecognized
Namespace Prefix: | vsh_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant