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Subsequent Events - Additional Information (Detail)
 3 Months Ended
Oct. 14, 2022
shares
Oct. 06, 2022
shares
Aug. 01, 2022
USD ($)
May 09, 2022
shares
Sep. 30, 2022
USD ($)
NUMBER
$ / shares
shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
$ / shares
Subsequent Event [Line Items]              
Common stock, par value | $ / shares         $ 0.001   $ 0.001
Aggregate number of shares of common stock to be subscribe         9,100,000    
Common Stock [Member]              
Subsequent Event [Line Items]              
Stock issued during period for warrants exercised, shares         800,000    
Warrant [Member] | United Warrant Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Stock issued during period for warrants exercised, shares 2,722,536 2,722,536          
Warrant [Member] | Lock Up Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Number of shares to be acquired six months after closing date of agreement with respect to first warrant         680,634    
Number of shares to be acquired nine months after closing date of agreement with respect to warrant         1,361,268    
Number of shares to be acquired twelve months after closing date of agreement with respect to second warrant         680,634    
Subsequent Event [Member] | Brazils National Development Bank [Member]              
Subsequent Event [Line Items]              
Total financing amount | $           $ 92,500,000  
Subsequent Event [Member] | Warrant [Member] | Lock Up Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Number of shares to be acquired six months after closing date of agreement with respect to first warrant         680,634    
Number of shares to be acquired nine months after closing date of agreement with respect to warrant         1,361,268    
Number of shares to be acquired twelve months after closing date of agreement with respect to second warrant         680,634    
EAH [Member] | Subsequent Event [Member]              
Subsequent Event [Line Items]              
Business acquisition equity interest issued number of shares       220,000,000      
Embraer Aircraft Holding Inc [Member] | Subsequent Event [Member] | Loan Agreement [Member]              
Subsequent Event [Line Items]              
Debt instrument face value | $     $ 81,000,000        
Interest rate     4.89%        
Debt Instrument, Maturity Date     Aug. 01, 2023        
United Airlines Ventures Ltd [Member] | United Subscription Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Aggregate number of shares of common stock to be subscribe         2,039,353    
Aggregate purchase price of stock | $         $ 15,000,000    
United Airlines Ventures Ltd [Member] | Warrant [Member] | Conditional Purchase Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Exercise price of warrants | $ / shares         $ 0.01    
Number of electrical vertical take-off and landing | NUMBER         400    
United Airlines Ventures Ltd [Member] | Warrant [Member] | Binding Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Exercise price of warrants | $ / shares         $ 0.01    
Number of electrical vertical take-off and landing | NUMBER         200    
Common Stock issuable shares         2,722,536    
United Airlines Ventures Ltd [Member] | Subsequent Event [Member] | United Subscription Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Common stock, par value | $ / shares         $ 0.001    
Aggregate number of shares of common stock to be subscribe         2,039,353    
Aggregate purchase price of stock | $         $ 15,000,000    
United Airlines Ventures Ltd [Member] | Subsequent Event [Member] | Warrant [Member] | United Warrant Agreement [Member]              
Subsequent Event [Line Items]              
Warrants and Rights Outstanding, Term         5 years    
United Airlines Ventures Ltd [Member] | Subsequent Event [Member] | Warrant [Member] | Conditional Purchase Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Exercise price of warrants | $ / shares         $ 0.01    
Number of electrical vertical take-off and landing | NUMBER         400    
Stock issued for warrants exercisable         2,722,536    
United Airlines Ventures Ltd [Member] | Subsequent Event [Member] | Warrant [Member] | Binding Agreement [Member] | Common Stock [Member]              
Subsequent Event [Line Items]              
Exercise price of warrants | $ / shares         $ 0.01    
Number of electrical vertical take-off and landing | NUMBER         200    
Common Stock issuable shares         2,722,536