Annual report pursuant to Section 13 and 15(d)

Schedule I - Parent Company Financial Information - Summary of Condensed Balance Sheets (Parenthetical) (Detail)

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Schedule I - Parent Company Financial Information - Summary of Condensed Balance Sheets (Parenthetical) (Detail) - $ / shares
Dec. 31, 2021
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Common stock par or stated value per share $ 0.0001 $ 0.0001    
Common stock shares authorized 315,000,000   55,659,643  
Common stock shares issued 72,027,743   30,281,520  
Common stock shares outstanding 72,027,743   30,281,520  
Series A Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share $ 1,000   $ 1,000  
Temporary Equity, Shares Authorized 0   7,765,229  
Temporary Equity, Shares Issued 0   7,756,158  
Temporary Equity, Shares Outstanding 0   7,756,158 6,836,003
Series A1 Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share $ 1,000   $ 1,000  
Temporary Equity, Shares Authorized 0   10,480,538  
Temporary Equity, Shares Issued 0   7,862,107  
Temporary Equity, Shares Outstanding 0   7,862,107 6,949,524
Series B Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share $ 1,000   $ 1,000  
Temporary Equity, Shares Authorized 0   9,090,975  
Temporary Equity, Shares Issued 0   9,090,975  
Temporary Equity, Shares Outstanding 0   9,090,975 8,233,774
Series C Convertible Preferred Stock [Member]        
Temporary Equity, Shares Authorized 0      
Temporary Equity, Shares Issued 0      
Temporary Equity, Shares Outstanding 0      
Parent Company [Member]        
Common stock par or stated value per share $ 0.0001   $ 0.0001  
Common stock shares authorized 315,000,000   55,659,643  
Common stock shares issued 72,027,743   30,281,520  
Common stock shares outstanding 72,027,743   30,281,520  
Parent Company [Member] | Series A Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share $ 1,000   $ 1,000  
Temporary Equity, Shares Authorized     7,765,229  
Temporary Equity, Shares Issued     7,756,158  
Temporary Equity, Shares Outstanding     7,756,158  
Parent Company [Member] | Series A1 Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share 1,000   $ 1,000  
Temporary Equity, Shares Authorized     10,480,538  
Temporary Equity, Shares Issued     7,862,107  
Temporary Equity, Shares Outstanding     7,862,107  
Parent Company [Member] | Series B Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share 1,000   $ 1,000  
Temporary Equity, Shares Authorized     9,090,975  
Temporary Equity, Shares Issued     9,090,975  
Temporary Equity, Shares Outstanding     9,090,975  
Parent Company [Member] | Series C Convertible Preferred Stock [Member]        
Temporary Equity, Par or Stated Value Per Share $ 1,000   $ 1,000  
Temporary Equity, Shares Authorized     6,872,894  
Temporary Equity, Shares Issued     2,566,186  
Temporary Equity, Shares Outstanding     2,566,186