XML 94 R87.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Fair Value Measurements - Additional Information (Detail) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Dividend yield | 0.00% | 0.00%

X
- Definition Expected dividend as percentage shares granted. + References No definition available. + Details
Name: | evex_ExpectedDividendAsPercentageSharesGranted
Namespace Prefix: | evex_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration