XML 84 R70.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Noncontrolling Interest Transactions - Additional Information (Detail) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 30, 2016 | Dec. 28, 2015 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2015
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Contingent consideration |  |  |  | $ 678,000 | $ 408,000 |
Converpower Corporation [Member] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Ownership percentage by parent in certain operating assets and cash | 100.00% |  |  |  |  |
Minority interest percentage by non controlling interest | 49.00% |  |  |  |  |
Percentage of common shares exchanged | 49.00% |  |  |  |  |
Contingent consideration |  |  | $ 208,000 |  | 282,000 |
Increased in liability reassessment obligation |  |  | $ 448,000 |  |  |
Mission Power Solutions Inc [Member] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Minority interest percentage by non controlling interest |  | 18.00% |  |  |  |
Contingent consideration |  |  |  |  | $ 126,000 | $ 144,000
Noncontrolling interest |  | $ 216,000 |  |  |  |
Mission Power Solutions Inc [Member] |  |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Increased in liability reassessment obligation |  |  |  | $ 202,000 |  |

X
- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 + Details
Name: | us-gaap_MinorityInterestPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common Stock Exchange Percentage + References No definition available. + Details
Name: | vicr_CommonStockExchangePercentage
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ownership percentage by parent in certain operating assets and cash. + References No definition available. + Details
Name: | vicr_OwnershipPercentageByParentInCertainOperatingAssetsAndCash
Namespace Prefix: | vicr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_OwnershipAxis=vicr_ConverpowerCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=vicr_MissionPowerSolutionsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherOwnershipInterestsByNameAxis=vicr_MissionPowerSolutionsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |