Quarterly report pursuant to Section 13 or 15(d)

Merger and Reverse Recapitalization - Additional Information (Detail)

v3.21.2
Merger and Reverse Recapitalization - Additional Information (Detail)
$ / shares in Units, $ in Millions
 9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
$ / shares
shares
Aug. 20, 2020
shares
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 143,795,504    
Common stock reserved for future issuance 57,125,000 130,804,276  
Business acquisition common stock exchange ratio 0.9522514    
Common stock, Shares issued 185,697,959 39,510,108  
Common stock, Par value | $ / shares $ 0.0001 $ 0.0001  
Common stock, Shares outstanding 185,697,959 39,510,108 5,220,000
Proceeds from contribution | $ $ 215.1    
Raised from merger | $ 360.9    
Redemption of public stockholders | $ 64.2    
PIPE financing cash | $ 210.0    
Merger related costs | $ 34.5    
General and Administrative Expense [Member]      
Business Acquisition [Line Items]      
Merger related costs | $ $ 2.0    
PIPE [Member]      
Business Acquisition [Line Items]      
Common stock, Shares issued 21,000,000    
Stock Options [Member]      
Business Acquisition [Line Items]      
Common stock reserved for future issuance 18,434,577    
Stock Options and Restricted Stock Units [Member]      
Business Acquisition [Line Items]      
Common stock reserved for future issuance 24,065,423    
Common Stock and Restricted Stock Units [Member]      
Business Acquisition [Line Items]      
Common stock reserved for future issuance 16,066,667    
Markfoged [Member]      
Business Acquisition [Line Items]      
Business acquisition, share price | $ / shares $ 10.00    
Merger related costs | $ $ 16.0    
A One [Member]      
Business Acquisition [Line Items]      
Common stock, Shares outstanding [1] 26,875,000    
Merger related costs | $ $ 18.5    
A One [Member] | PIPE [Member]      
Business Acquisition [Line Items]      
Common stock, Shares issued 41,456,333    
Sponsor [Member]      
Business Acquisition [Line Items]      
Common stock, Shares outstanding     2,610,000
Series Seed Convertible Preferred Stock [Member]      
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 17,918,211    
Series A Convertible Preferred Stock [Member]      
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 28,725,920    
Series B Convertible Preferred Stock [Member]      
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 34,391,480    
Series C Convertible Preferred Stock [Member]      
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 14,468,290    
Series D Convertible Preferred Stock [Member]      
Business Acquisition [Line Items]      
Convertible preferred stock converted into shares 17,305,052    
Common Class B [Member]      
Business Acquisition [Line Items]      
Common stock, Shares outstanding 5,375,000    
Subscription Agreements [Member]      
Business Acquisition [Line Items]      
Common stock, Shares issued 21,000,000    
Common stock, share price | $ / shares $ 10.00    
Proceeds from issuance of private placement | $ $ 210.0    
[1] Includes AONE Class A shareholders 15,081,333, and AONE Class B shareholders 5,375,000