Name:	us-gaap_BusinessAcquisitionLineItems
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Data Type:	xbrli:stringItemType
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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=120321790&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=120321790&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

Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959

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

Business acquisition number of milestones achieved related to contingent consideration.

No definition available.

Name:	vir_BusinessAcquisitionNumberOfMilestonesAchievedRelatedToContingentConsideration
Namespace Prefix:	vir_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Business acquisition number of specified clinical milestones achieved.

No definition available.

Name:	vir_BusinessAcquisitionNumberOfSpecifiedClinicalMilestonesAchieved
Namespace Prefix:	vir_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Business combination contingent consideration amount payable term.

No definition available.

Name:	vir_BusinessCombinationContingentConsiderationAmountPayableTerm
Namespace Prefix:	vir_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Business combinations additional consideration payable upon achievement of specified events.

No definition available.

Name:	vir_BusinessCombinationsAdditionalConsiderationPayableUponAchievementOfSpecifiedEvents
Namespace Prefix:	vir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Milestone payments related terms description.

No definition available.

Name:	vir_MilestonePaymentsRelatedTermsDescription
Namespace Prefix:	vir_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Minimum common stock conversion price for milestone payments consideration.

No definition available.

Name:	vir_MinimumCommonStockConversionPriceForMilestonePaymentsConsideration
Namespace Prefix:	vir_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Specified clinical development milestones payment.

No definition available.

Name:	vir_SpecifiedClinicalDevelopmentMilestonesPayment
Namespace Prefix:	vir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

Name:	us-gaap_TypeOfArrangementAxis=vir_LetterAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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

Name:	srt_ProductOrServiceAxis=vir_HepatitisBVirusProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ProductOrServiceAxis=vir_AnotherProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ProductOrServiceAxis=vir_SARSCoV2ProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: