XML 58 R48.htm IDEA: XBRL DOCUMENT
v3.23.1

Investments - Amortized Cost, Gross Unrealized Gains/Losses In Accumulated Other Comprehensive Loss And Fair Value Of Marketable Debt Securities, Available-For-Sale (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Short-term investments: |  |
Amortized Cost | $ 27,865 | $ 51,387
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (337) | (739)
Fair Value | 27,528 | 50,648
Corporate debt security |  |
Short-term investments: |  |
Amortized Cost | 24,185 | 40,177
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (303) | (612)
Fair Value | 23,882 | 39,565
U.S. treasuries |  |
Short-term investments: |  |
Amortized Cost | 651 | 2,201
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (1) | (21)
Fair Value | 650 | 2,180
Asset-backed security and other |  |
Short-term investments: |  |
Amortized Cost | 3,029 | 5,324
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (33) | (76)
Fair Value | $ 2,996 | 5,248
Non-U.S. government and supranational bonds |  |
Short-term investments: |  |
Amortized Cost |  | 3,685
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | (30)
Fair Value |  | $ 3,655

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26626-111562 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Amortized Cost, Current + References No definition available. + Details
Name: | xos_DebtSecuritiesAvailableForSaleAmortizedCostCurrentAbstract
Namespace Prefix: | xos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Securities, Available-for-sale, Unrealized Gain, Current + References No definition available. + Details
Name: | xos_DebtSecuritiesAvailableForSaleUnrealizedGainCurrent
Namespace Prefix: | xos_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Debt Securities, Available-for-sale, Unrealized Loss, Current + References No definition available. + Details
Name: | xos_DebtSecuritiesAvailableForSaleUnrealizedLossCurrent
Namespace Prefix: | xos_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |