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Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 26, 2021
USD ($)
Mar. 25, 2021
shares
Mar. 23, 2021
position
Feb. 28, 2021
shares
Feb. 18, 2021
shares
Nov. 21, 2017
shares
Sep. 30, 2022
$ / shares
shares
Feb. 28, 2022
shares
Feb. 28, 2021
shares
Sep. 30, 2022
USD ($)
$ / shares
shares
Jun. 30, 2022
USD ($)
shares
Mar. 31, 2022
USD ($)
shares
Sep. 30, 2021
USD ($)
shares
Jun. 30, 2021
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Sep. 30, 2022
$ / shares
shares
Sep. 30, 2021
USD ($)
shares
Dec. 31, 2021
$ / shares
shares
Dec. 31, 2020
shares
Class of Stock [Line Items]                                      
Preferred stock, shares authorized (in shares)             10,000,000     10,000,000           10,000,000   10,000,000  
Preferred stock, par value (in dollars per share) | $ / shares             $ 0.00001     $ 0.00001           $ 0.00001   $ 0.00001  
Preferred stock, shares issued (in shares)             0     0           0   0  
Preferred stock, shares outstanding (in shares)             0     0           0   0  
Common stock, shares authorized (in shares)             100,000,000     100,000,000           100,000,000   100,000,000  
Common stock, par value (in dollars per share) | $ / shares             $ 0.00001     $ 0.00001           $ 0.00001   $ 0.00001  
Common stock, shares, outstanding (in shares)             56,183,414     56,183,414           56,183,414   55,576,988  
Common stock, shares, issued (in shares)             56,183,414     56,183,414           56,183,414   55,576,988  
Issuance of common stock in connection with the incentive equity plan | $                   $ 355 $ 167 $ 17 $ 0 $ 644 $ 11        
Maximum number of shares authorized under the plan (in shares)           4,361,291                          
Annual increase percentage of maximum shares outstanding (equal to)           4.00%                          
Capital shares reserved for future issuance (in shares)             1,447,855     1,447,855           1,447,855      
Outstanding stock options (in shares)             4,932,632     4,932,632           4,932,632      
Nonvested (in shares)             2,638,803     2,638,803           2,638,803      
Contractual term                               10 years      
Minimum                                      
Class of Stock [Line Items]                                      
Award vesting period                               1 year      
Maximum                                      
Class of Stock [Line Items]                                      
Award vesting period                               4 years      
Stock options                                      
Class of Stock [Line Items]                                      
Granted (in shares)             169,158 171,103               1,665,786      
Outstanding stock options (in shares)             340,261     340,261           340,261   3,922,286  
Contractual term                               7 years 2 months 23 days   7 years 1 month 6 days  
Restricted Stock Units (RSUs)                                      
Class of Stock [Line Items]                                      
Restricted stock units granted (in shares)             36,443 39,012               1,667,320      
Nonvested (in shares)             75,455     75,455           75,455   1,926,467  
RSUs Market Conditions                                      
Class of Stock [Line Items]                                      
Restricted stock units granted (in shares)                               0      
RSUs Performance Conditions                                      
Class of Stock [Line Items]                                      
Restricted stock units granted (in shares)                               0      
ATM Sales Agreement                                      
Class of Stock [Line Items]                                      
Maximum consideration receivable | $ $ 75,000                                    
Sale of stock, commission payment upon gross proceeds 3.00%                                    
Issuance of common stock in connection with the incentive equity plan | $                         8,203 $ 2,707          
Total commission | $                         $ 254       $ 337    
Common Stock                                      
Class of Stock [Line Items]                                      
Common stock, shares, issued (in shares)             56,183,414     56,183,414 56,063,413 56,041,364 55,553,792 54,372,792 43,736,971 56,183,414 55,553,792 55,576,988 33,749,228
Issuance of common stock in connection with litigation settlement (in shares)       6,762,652 6,762,652       6,762,652           6,762,652        
Issuance of common stock in connection with the incentive equity plan (in shares)                   120,001 22,049 464,376 456,165 76,289 88,222        
Common Stock | ATM Sales Agreement                                      
Class of Stock [Line Items]                                      
Issuance of common stock in connection with the incentive equity plan (in shares)                         724,835 209,532     934,367    
Common Stock | Daewoong Convertible Note | Convertible Debt                                      
Class of Stock [Line Items]                                      
Conversion of common shares (in shares)   3,136,869 3,136,869                                
Additional Paid In Capital                                      
Class of Stock [Line Items]                                      
Issuance of common stock in connection with the incentive equity plan | $                   $ 355 $ 167 $ 17   $ 644 $ 11        
Additional Paid In Capital | ATM Sales Agreement                                      
Class of Stock [Line Items]                                      
Issuance of common stock in connection with the incentive equity plan | $                         $ 8,203 $ 2,707     $ 10,910