New warrants expenses.

No definition available.

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- Definition

Number of tranches granted under share based payment award .

+ References

No definition available.

+ Details

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- Definition

Number of tranches granted under share based payment award for market and service conditions.

+ References

No definition available.

+ Details

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- Definition

Number of tranches granted under share based payment award for performance conditions.

+ References

No definition available.

+ Details

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- Definition

Number of tranches granted under share based payment award for service conditions.

+ References

No definition available.

+ Details

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- Definition

Period of incubation stage.

+ References

No definition available.

+ Details

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- Definition

Stock issued during period for warrants exercised, shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	evex_
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Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

+ Details

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

+ Details

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Description of the likelihood that an uncertainty in income taxes will not be sustained as a result of the examination by the taxing authority.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 15
-Paragraph 2
-Subparagraph (d)(1)
-URI https://asc.fasb.org/extlink&oid=121825205&loc=d3e27249-109313

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (d)(2)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) NUMBER $ / shares shares	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) NUMBER $ / shares shares	Sep. 30, 2021 USD ($)	Dec. 31, 2021
Income tax examination likelihood of unfavorable settlement			greater than 50%		greater than 50%
Number of operating segments			3
New Warrants Expenses \| $	$ 17,424,230	$ 0	$ 104,776,230	$ 0
Stock Incentive Plan 2022 [Member]
Number Of Tranches Granted Under Share Based Payment Award \| NUMBER			6
Number of tranches granted under share-based payment award for performance conditions \| NUMBER			4
Number of tranches granted under share-based payment award for service conditions \| NUMBER			1
Number of tranches granted under share-based payment award for market and service conditions \| NUMBER	1		1
eVTOL [Member]
Period of incubation stage			4 years
Software licenses
Finite lived intangible asset useful life			5 years
Common Stock [Member]
Stock issued during period for warrants exercised, shares \| shares	800,000
Common Stock [Member] \| Strategic Warrants One [Member]
Warrants exercisable to purchase common stock \| shares	24,095,072		24,095,072
Common Stock, Exercise price \| $ / shares \| $ / shares	$ 0.01		$ 0.01
Common Stock [Member] \| Strategic Warrants One [Member] \| Parent Company [Member]
Common Stock, Exercise price \| $ / shares \| $ / shares	$ 8,000		$ 8,000
Common Stock [Member] \| Strategic Warrants Two [Member]
Warrants exercisable to purchase common stock \| shares	12,000,000		12,000,000
Common Stock, Exercise price \| $ / shares \| $ / shares	$ 15		$ 15
Common Stock [Member] \| Strategic Warrants Three [Member]
Warrants exercisable to purchase common stock \| shares	5,000,000		5,000,000
Common Stock, Exercise price \| $ / shares \| $ / shares	$ 11.5		$ 11.5