Registration statement for securities of certain foreign private issuers

Subsequent Events - Additional Information (Detail)

v3.21.2
Subsequent Events - Additional Information (Detail)
 12 Months Ended
Apr. 05, 2021
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
shares
Feb. 26, 2021
USD ($)
Feb. 17, 2021
USD ($)
$ / shares
shares
Oct. 01, 2020
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Mar. 01, 2021
USD ($)
Dec. 31, 2017
shares
Subsequent Event [Line Items]                    
Reverse stock split ratio       1.138974            
Proceeds from Issuance of convertible preferred shares, net of issuance expenses | $           $ 8,934,000 $ 161,233,000 $ 0    
Collective Growth Corp [Member]                    
Subsequent Event [Line Items]                    
Redeemed value of shares | $           $ (97,777,000)        
Series A Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding           20,418,209 20,418,209      
Series B Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding           15,906,053 15,906,053 15,906,053   15,906,053
Series B-1 Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding           3,032,940 3,032,940 3,032,940   3,032,940
Series C Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares issued durng the period new issues             28,216,005      
Temporary equity shares outstanding           28,216,005 28,216,005      
Series C-1 Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares issued durng the period new issues         943,148 2,699,114        
Proceeds from Issuance of convertible preferred shares, net of issuance expenses | $         $ 8,934,000          
Temporary equity shares outstanding           2,699,114 0      
Common Class B [Member] | Collective Growth Corp [Member]                    
Subsequent Event [Line Items]                    
Share forfeited during the period shares           562,500        
Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Reverse stock split ratio       1.138974            
Share price | $ / shares       $ 10            
Conversion of temporary equity into permanent equity shares 70,618,999                  
Common stock share exchange ratio 1                  
Class of warrants or rights forfeited during the period shares 187,500                  
Conversion of temporary equity into permanent equity exchange ratio 1                  
Redemption of aggregate consummation of business combination 891,046                  
Subsequent Event [Member] | Collective Growth Corp [Member]                    
Subsequent Event [Line Items]                    
Loans aggregate amount | $     $ 225,000              
Unsecured working capital loan | $                 $ 100,000  
Net tangible assets | $   $ 5,000,001                
Redeemed shares (in shares)   891,046                
Redeemed value of shares | $   $ 8,900,000                
Subsequent Event [Member] | Perception [Member]                    
Subsequent Event [Line Items]                    
Class of warrants or issued during the period shares 3,027,747                  
Subsequent Event [Member] | Perception [Member] | Upon Achievement Of Earnout Milestone [Member]                    
Subsequent Event [Line Items]                    
Common stock shares subscribed but not issued 2,175,000                  
Subsequent Event [Member] | Antara [Member]                    
Subsequent Event [Line Items]                    
Class of warrants or issued during the period shares 3,784,753                  
Stock shares issued during the period shares 3,002,674                  
Subsequent Event [Member] | Antara [Member] | Upon Achievement Of Earnout Milestone [Member]                    
Subsequent Event [Line Items]                    
Common stock shares subscribed but not issued 312,297                  
Subsequent Event [Member] | Companies Management [Member]                    
Subsequent Event [Line Items]                    
Class of warrants or rights issued but not subscribed 3,500,000                  
Common stock shares subscribed but not issued 2,500,000                  
Subsequent Event [Member] | Certain Members Of The Management [Member] | Upon Achievement Of Earnout Milestone [Member]                    
Subsequent Event [Line Items]                    
Common stock shares subscribed but not issued 1,250,000                  
Subsequent Event [Member] | Accredited Investors [Member] | Subscription Agreement [Member]                    
Subsequent Event [Line Items]                    
Proceeds from issuance of common stock | $ $ 230,000,000                  
Sale of stock issue price per share | $ / shares $ 10                  
Subsequent Event [Member] | Sponsor [Member]                    
Subsequent Event [Line Items]                    
Class of warrants or rights issued upon conversion of convertible notes 100,000                  
Subsequent Event [Member] | Series A Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding 20,418,209                  
Subsequent Event [Member] | Series B Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding 15,906,053                  
Subsequent Event [Member] | Series B-1 Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding 3,032,940                  
Subsequent Event [Member] | Series C Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares outstanding 28,216,005                  
Subsequent Event [Member] | Series C-1 Convertible Preferred Shares [Member]                    
Subsequent Event [Line Items]                    
Temporary equity shares issued durng the period new issues       375,107            
Proceeds from Issuance of convertible preferred shares, net of issuance expenses | $       $ 0            
Temporary equity shares outstanding 3,045,792                  
Subsequent Event [Member] | Common Class B [Member]                    
Subsequent Event [Line Items]                    
Share forfeited during the period shares 1,875,000