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Product Warranties - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
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

X

- Definition

Warranty period.

+ References

No definition available.

+ Details

Name:	vicr_WarrantyPeriod
Namespace Prefix:	vicr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration