Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant Compliance, Debt to EBITDA Ratio

+ References

No definition available.

+ Details

Name:	vec_DebtInstrumentCovenantComplianceDebttoEBITDARatio
Namespace Prefix:	vec_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant Compliance, EBITDA to Interest Expense Ratio

+ References

No definition available.

+ Details

Name:	vec_DebtInstrumentCovenantComplianceEBITDAtoInterestExpenseRatio
Namespace Prefix:	vec_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Letters of Credit Outstanding, Number Outstanding

+ References

No definition available.

+ Details

Name:	vec_LettersofCreditOutstandingNumberOutstanding
Namespace Prefix:	vec_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Accordian Feature, Increase Limit

+ References

No definition available.

+ Details

Name:	vec_LineOfCreditFacilityAccordianFeatureIncreaseLimit
Namespace Prefix:	vec_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt Instrument, Covenant Terms, Minimum EBITDA to Interest Expense Ratio

+ References

No definition available.

+ Details

Name:	vec_LineofCreditCovenantTermsMinimumEBITDAtoInterestExpenseRatio
Namespace Prefix:	vec_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Covenant Terms, Maximum Debt to EBITDA Ratio

+ References

No definition available.

+ Details

Name:	vec_LineofCreditFacilityCovenantTermsMaximumDebttoEBITDARatio
Namespace Prefix:	vec_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Maximum Debt to EBITDA Ratio, Twelve Months Following Purchase

+ References

No definition available.

+ Details

Name:	vec_LineofCreditFacilityCovenantTermsMaximumDebttoEBITDARatioTwelveMonthsFollowingPurchase
Namespace Prefix:	vec_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=vec_SeniorSecuredCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=vec_TermFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	vec_AmortizationTermAxis=vec_QuarterlyJuly12022ThroughSeptember302023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	vec_AmortizationTermAxis=vec_DueNovember152023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=vec_AmendedRevolverMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=vec_TermFacilityAndAmendedRevolverMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Additional Information (Details)	3 Months Ended
Debt - Additional Information (Details)	Apr. 01, 2022 USD ($) letters_of_credit	Dec. 31, 2021 USD ($)	Dec. 24, 2020 USD ($)
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 100,000,000
Increase limit			100,000,000
Number of letters of credit outstanding \| letters_of_credit	2
Senior secured credit facilities
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 270,000,000
Covenant terms, ratio of total indebtedness to combined EBITDA	3.00
Covenant terms, maximum debt to EBITDA ratio, twelve months following purchase	3.50
Covenant terms, ratio of EBITDA to interest expense, net,	4.50
Ratio of total indebtedness to combined EBITDA	1.40
Ratio of combined EBITDA to combined interest expense	12.32
Interest rate	2.41%
Senior secured credit facilities \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt Instrument [Line Items]
Spread on variable rate	1.85%
Senior secured credit facilities \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt Instrument [Line Items]
Spread on variable rate	2.60%
Senior secured credit facilities \| Base Rate \| Minimum
Debt Instrument [Line Items]
Spread on variable rate	0.75%
Senior secured credit facilities \| Base Rate \| Maximum
Debt Instrument [Line Items]
Spread on variable rate	1.50%
Unsecured Debt
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			75,000,000
Term facility
Debt Instrument [Line Items]
Outstanding borrowings	$ 52,800,000
Term facility \| Quarterly July 1, 2022 Through September 30, 2023
Debt Instrument [Line Items]
Outstanding borrowings	2,600,000
Term facility \| Due November 15, 2023
Debt Instrument [Line Items]
Outstanding borrowings	37,200,000
Amended revolver
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity			$ 25,000,000
Outstanding borrowings	67,000,000	$ 50,000,000
Letters of credit outstanding	2,700,000
Remaining borrowing capacity	$ 200,300,000
Term Facility And Amended Revolver \| Minimum
Debt Instrument [Line Items]
Commitment fee percentage	0.30%
Term Facility And Amended Revolver \| Maximum
Debt Instrument [Line Items]
Commitment fee percentage	0.45%