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Consolidated Statements of Legacy Xos Preferred Stock and Stockholders’ Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Statement of Stockholders' Equity [Abstract] |  |
Transaction costs | $ 55,424 | $ 0

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Reverse Recapitalization, Transaction Costs + References No definition available. + Details
Name: | xos_ReverseRecapitalizationTransactionCosts
Namespace Prefix: | xos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration