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Product Warranties - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2014
Guarantees [Abstract] |
Warranty period | 2 years

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

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- Definition Warranty period. + References No definition available. + Details
Name: | vicr_WarrantyPeriod
Namespace Prefix: | vicr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration