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

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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

Amount of liability recognized arising from contingent consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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=116859824&loc=d3e6819-128478

Reference 3: 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

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

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The number of tranches in which consideration for the business combination is to be paid.

No definition available.

Name:	vrtu_BusinessAcquisitionNumberOfTranches
Namespace Prefix:	vrtu_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The amount of additional contingent consideration the purchase price may be adjusted.

No definition available.

Name:	vrtu_BusinessAcquisitionPurchasePriceAdjustmentContingentConsideration
Namespace Prefix:	vrtu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The undiscounted amount of the cash acquisition price in a business combination, including amounts paid at closing and amounts to be paid in future installments.

No definition available.

Name:	vrtu_BusinessCombinationConsiderationUndiscountedCashAcquisitionPrice
Namespace Prefix:	vrtu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of retention bonus paid.

No definition available.

Name:	vrtu_BusinessCombinationRetentionBonus
Namespace Prefix:	vrtu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of deferred consideration related to business aquistion to be payable in future.

No definition available.

Name:	vrtu_DeferredConsiderationPayable
Namespace Prefix:	vrtu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Deferred consideration payment term.

No definition available.

Name:	vrtu_DeferredConsiderationPaymentTerm
Namespace Prefix:	vrtu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Number of business acquired.

No definition available.

Name:	vrtu_NumberOfBusinessAcquired
Namespace Prefix:	vrtu_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The cash outflow associated with the acquisition of business during the period, paid utilizing proceeds from long-term line of credit.

No definition available.

Name:	vrtu_PaymentsToAcquireBusinessesGrossPaidFromLineOfCreditProceeds
Namespace Prefix:	vrtu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Target performance period.

No definition available.

Name:	vrtu_TargetPerformancePeriod
Namespace Prefix:	vrtu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_BusinessAcquisitionAxis=vrtu_AcqusitionsFiscalYear2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

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