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Stockholders' Deficit - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Feb. 28, 2023
Jul. 22, 2022
May 31, 2022
Jun. 25, 2021
May 04, 2021
Jan. 14, 2021
Nov. 24, 2020
Apr. 30, 2020
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Dec. 31, 2020
Class Of Stock [Line Items]                            
Capital stock, shares authorized (in shares)         350,000,000                 250,000,000
Loss from G42 Promissory Note early redemption                     $ 313 $ 0    
Stock issued during period                       $ 5,040    
G42 Investments                            
Class Of Stock [Line Items]                            
Shares sold (in shares)     10,386,274                      
Sale of stock, price per share (in usd per shares)     $ 2.41                      
Sale of stock, consideration received on transaction, gross     $ 25,000                      
Sale of stock, consideration received on transaction     12,500                      
Accounts and financing receivable, after allowance for credit loss     $ 12,500                      
Sale of stock, consideration, receivables, payment term     1 year                      
Proceeds from collection of notes receivable $ 12,000                          
Discount rate 3.75%                          
Loss from G42 Promissory Note early redemption $ 300                          
CinRx Investment                            
Class Of Stock [Line Items]                            
Shares sold (in shares)   4,154,549                        
Sale of stock, price per share (in usd per shares)   $ 2.41                        
Sale of stock, consideration received on transaction, gross   $ 10,000                        
Sale of stock, consideration received on transaction   6,000                        
Accounts and financing receivable, after allowance for credit loss   $ 4,000                        
Warrants, term   5 years                        
Class A Common Stock                            
Class Of Stock [Line Items]                            
Common stock, shares authorized (in shares)         200,000,000       200,000,000   200,000,000   200,000,000 100,000,000
Increase in shares authorized (in shares)         100,000,000                  
Common stock par value (in usd per share)                 $ 0.01   $ 0.01   $ 0.01  
Class A Common Stock | CinRx Investment                            
Class Of Stock [Line Items]                            
Sale of stock, price per share (in usd per shares)   $ 0.72                        
Sale of stock, consideration received on transaction   $ 3,000                        
Class A Common Stock | Cantor Fitzgerald | ATM Offering                            
Class Of Stock [Line Items]                            
Shares sold (in shares)                 0 0 0 0    
Common stock par value (in usd per share)               $ 0.01            
Stock issued during period               $ 13,000            
Aggregate offering price       $ 50,000   $ 5,500                
Class A Common Stock | LPC Purchase Agreement                            
Class Of Stock [Line Items]                            
Shares sold (in shares)                 0 0 0 0    
Class A Common Stock | LPC Purchase Agreement | Maximum                            
Class Of Stock [Line Items]                            
Stock issued during period             $ 47,000              
Common Stock                            
Class Of Stock [Line Items]                            
Common stock, shares authorized (in shares)         300,000,000                 200,000,000
Common Stock | CinRx Investment                            
Class Of Stock [Line Items]                            
Number of securities called by warrants or rights (in shares)   1,200,000                        
Exercise price of warrants or rights (in usd per share)   $ 0.72                        
Warrants, fair value   $ 400