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Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Dec. 12, 2021
Dec. 31, 2021
Sep. 25, 2021
Mar. 23, 2022
Warrant Units [Member]        
Subsequent Event [Line Items]        
Warrants Vested Units     446,741  
Walmart Inc. [Member] | Warrant Units [Member]        
Subsequent Event [Line Items]        
Warrants Vested Units   446,741    
Warrants Vested Value   $ 173.8    
Common Class A [Member] | Walmart [Member]        
Subsequent Event [Line Items]        
Percentage of ownership percentage   6.50%    
Common Class A [Member] | Walmart Inc. [Member]        
Subsequent Event [Line Items]        
Units issued during the period on exercise of warrants units   446,741    
Subsequent Event [Member] | Walmart Inc. [Member] | Warrant Units [Member]        
Subsequent Event [Line Items]        
Warrants Vested Units 267,281 446,741    
Warrants Vested Value $ 104.0 $ 173.8    
Subsequent Event [Member] | Forward Purchase Agreement [Member] | SVF INVESTMENT CORP 3 [Member]        
Subsequent Event [Line Items]        
Common Stock Subscription       $ 50.0
Share price       $ 10
Subsequent Event [Member] | Common Class A [Member] | Walmart [Member]        
Subsequent Event [Line Items]        
Percentage of ownership percentage 3.70% 6.50%    
Subsequent Event [Member] | Common Class A [Member] | Walmart Inc. [Member]        
Subsequent Event [Line Items]        
Units issued during the period on exercise of warrants units 267,281 446,741    
Subsequent Event [Member] | Common Class A [Member] | Walmart Inc. [Member] | Warrant Units [Member]        
Subsequent Event [Line Items]        
Warrants Vested Units 258,972      
Class of warrants or rights exercise price per share $ 614.34