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Stockholder's Equity - Additional Information (Detail)
 3 Months Ended 6 Months Ended
May 09, 2022
shares
Jun. 30, 2022
$ / shares
shares
Jun. 30, 2022
USD ($)
NUMBER
$ / shares
shares
Dec. 31, 2021
$ / shares
shares
Jun. 30, 2021
shares
Class of Stock [Line Items]          
Preferred stock, shares authorized   100,000,000 100,000,000    
Preferred stock shares issued   0 0 0  
Preferred stock, shares outstanding   0 0 0  
Common stock, par value | $ / shares   $ 0.001 $ 0.001 $ 0.001  
Common stock, shares authorized   1,000,000,000 1,000,000,000 1,000,000,000  
Common stock, shares issued   264,332,132 264,332,132 264,332,132 235,582,132
Common stock, shares outstanding   235,582,132 235,582,132 235,582,132 235,582,132
Common stock, voting rights     one vote per share    
Dividends on common stock | $     $ 0    
Common stock reserved for future issuance   9,100,000 9,100,000    
Common Stock [Member]          
Class of Stock [Line Items]          
Stock issued during period for warrants exercised, shares   800,000      
Public Warrants [Member]          
Class of Stock [Line Items]          
Class of warrant or right redemption threshold consecutive trading days     20 days    
Class of warrant or right, threshold period for exercise from date of closing public offering     12 months    
Term of warrants   5 years 5 years    
Class of warrants redemption price per unit | $ / shares   $ 0.01 $ 0.01    
Number of securities called by each warrant   1 1    
Exercise price of warrants | $ / shares   $ 11.5 $ 11.5    
Class of warrant or right redemption threshold consecutive days from date of closing of business combination     30 days    
Class of warrants, Convertible, Stock Price Trigger | $ / shares     $ 18    
Class of warrant or right redemption threshold trading days     30 days    
Strategic Warrants One [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Exercise price of warrants | $ / shares   $ 0.01 $ 0.01    
Warrants exercisable to purchase common stock   18,650,000 18,650,000    
Stock issued during period for warrants exercised, shares 800,000        
Strategic Warrants Two [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Exercise price of warrants | $ / shares   $ 15 $ 15    
Warrants exercisable to purchase common stock   12,000,000 12,000,000    
Strategic Warrants Three [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Exercise price of warrants | $ / shares   $ 11.5 $ 11.5    
Warrants exercisable to purchase common stock   5,000,000 5,000,000    
Strategic Warrants [Member]          
Class of Stock [Line Items]          
Number of electrical vertical take-off and landing for receipt of binding commitments | NUMBER     500    
Number of electrical vertical take-off and landing for purchase commitments | NUMBER     200    
Number of vertiports | NUMBER     10    
Strategic Warrants [Member] | Common Stock [Member]          
Class of Stock [Line Items]          
Common stock, shares issued 26,550,000        
Stock issued during period for warrants exercised, shares 800,000        
ZANITE ACQUISITION CORP [Member] | Public Warrants [Member]          
Class of Stock [Line Items]          
Term of warrants   5 years 5 years    
Class of warrant or right redemption threshold consecutive days from date of closing of business combination     30 days