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v3.23.2

Subsequent Event - Additional Information (Detail) - Subsequent Event [Member] - ViaSat-3 Americas [Member] $ in Millions | Jul. 12, 2023 USD ($)
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Subsequent Event [Line Items] |
Assets insured | $ 420
Proportion of insured amount to asset net book value | nearly half

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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The insured amount of an asset. + References No definition available. + Details
Name: | vsat_AssetInsuredAmount
Namespace Prefix: | vsat_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Proportion of insured amount to asset net book value. + References No definition available. + Details
Name: | vsat_ProportionOfInsuredAmountToAssetNetBookValue
Namespace Prefix: | vsat_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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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: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=vsat_SatelliteViasatThreeAmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |