XML 58 R44.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Short-Term and Long-Term Investments - Summary of Investment (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Cash and Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | $ 182,418 | $ 161,742
Short-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 45,215 | 50,166
Other Long-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 2,639 | 2,517
US Treasury Obligations [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 45,215 | 70,164
US Treasury Obligations [Member] | Short-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale |  | 50,166
Auction Rate Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 2,639 | 2,517
Auction Rate Securities [Member] | Other Long-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 2,639 | 2,517
Estimate of Fair Value Measurement [Member] | Cash and Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 94,282 | 89,491
Estimate of Fair Value Measurement [Member] | Short-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 45,215 | 50,166
Estimate of Fair Value Measurement [Member] | Other Long-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 2,639 | 2,517
Estimate of Fair Value Measurement [Member] | US Treasury Obligations [Member] | Cash and Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale |  | 19,998
Estimate of Fair Value Measurement [Member] | US Treasury Obligations [Member] | Short-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale |  | 50,166
Estimate of Fair Value Measurement [Member] | Auction Rate Securities [Member] | Other Long-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 2,639 | 2,517
Estimate of Fair Value Measurement [Member] | Money Market Funds [Member] | Cash and Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 94,282 | 69,493
Estimate of Fair Value Measurement [Member] | US Treasury Obligations [Member] | Short-term Investments [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | 45,215 |
Portion at Other than Fair Value Measurement [Member] | Cash [Member] | Cash and Cash Equivalents [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Debt Securities, Available-for-sale | $ 88,136 | $ 72,251

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_CashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_ShortTermInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_OtherLongTermInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AuctionRateSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | vicr_FairValueDisclosureMeasurementAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | vicr_FairValueDisclosureMeasurementAxis=us-gaap_PortionAtOtherThanFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CashAndCashEquivalentsAxis=us-gaap_CashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |