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Subsequent Events (Details) - Subsequent Event - Standby Equity Purchase Agreement $ in Millions | Mar. 23, 2022 USD ($)
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Subsequent Event [Line Items] |
Sale of stock, maximum amount of consideration to be received on transaction | $ 125.0
Sale of stock, period for transaction | 36 months

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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 Sale Of Stock, Maximum Amount Of Consideration To Be Received On Transaction. + References No definition available. + Details
Name: | xos_SaleOfStockMaximumAmountOfConsiderationToBeReceivedOnTransaction
Namespace Prefix: | xos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Sale Of Stock, Period For Transaction + References No definition available. + Details
Name: | xos_SaleOfStockPeriodForTransaction
Namespace Prefix: | xos_
Data Type: | xbrli:durationItemType
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_SubsidiarySaleOfStockAxis=xos_StandbyEquityPurchaseAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |