Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.21.1
Subsequent Events - Additional Information (Detail)
 12 Months Ended
Apr. 05, 2021
USD ($)
$ / shares
shares
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
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  
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    
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] | 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