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Restatement of Previously Issued Financial Statements - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2021 | Dec. 31, 2021
Embraer S.A And Aircraft Holding [Member] |  |  |
Transaction costs incurred and included in professional service fees |  |  | $ 2,389,083
Deferred transaction costs |  |  | $ 6,253,257
Restatement Adjustment |  |  |
Transaction Costs | $ 0.4 | $ 2 |

X
- Definition Deferred transaction costs. + References No definition available. + Details
Name: | evex_DeferredTransactionCosts
Namespace Prefix: | evex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of transaction cost recognized as expense. The Transaction Costs comprise but were not limited to, costs associated with lawyers, bankers, consulting and auditing with the objective to effectuate the transaction with related parties. + References No definition available. + Details
Name: | evex_TransactionCostRecognizedAsExpense
Namespace Prefix: | evex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Transaction costs incurred and included in professional service fees. + References No definition available. + Details
Name: | evex_TransactionCostsIncurredAndIncludedInProfessionalServiceFees
Namespace Prefix: | evex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=evex_EmbraerS.aAndAircraftHoldingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |