XML 18 R33.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 04, 2015 | Dec. 31, 2014
Income Taxes [Abstract] |  |
Decrease in liabilities for unrecognized tax benefits | $ 754 us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease |
Borrowings to fund acquisition |  | $ 53,000 vsh_BorrowingsToFundAcquisition

X
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net amount of all increases and decreases in unrecognized tax benefits for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount borrowed under a revolving credit facility used to fund or partially fund an acquisition. + References No definition available. + Details
Name: | vsh_BorrowingsToFundAcquisition
Namespace Prefix: | vsh_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration