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v3.20.2

Subsequent Event - Additional Information (Details) - Humabs - USD ($) $ in Millions | 1 Months Ended
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Oct. 31, 2020 | Jun. 30, 2020
Subsequent Event [Line Items] |  |
Specified clinical development milestones payment |  | $ 10.0
Subsequent Event | SARS-CoV-2 Product |  |
Subsequent Event [Line Items] |  |
Specified clinical development milestones payment | $ 10.0 |

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Specified clinical development milestones payment. + References No definition available. + Details
Name: | vir_SpecifiedClinicalDevelopmentMilestonesPayment
Namespace Prefix: | vir_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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