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Stock-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jul. 09, 2020
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Weighted average grant date fair value of options granted   $ 5.08                        
Total fair value of options vested   $ 40                        
Total unrecognized compensation expense   $ 1,392                        
Total unrecognized compensation expense, weighted-average period of recognition   3 years 4 months 24 days                        
Dividends   0.00%                        
Stock-based compensation expense   $ 2,320 $ 47                      
2020 Employee Stock Purchase Plan                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Common stock reserved for issuance   340                        
Percentage of outstanding shares of common stock   1.00%                        
Exercise price of option on fair value (as a percent)   85.00%                        
Shares of common stock have been issued to employees   0                        
ISOs and NSOs | Minimum                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Vesting period   3 years                        
ISOs and NSOs | Minimum | Share-based Payment Arrangement, Tranche One                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Exercise price of option on fair value (as a percent)   100.00%                        
ISOs and NSOs | Maximum                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Term of contract   10 years                        
Vesting period   4 years                        
ISOs and NSOs | Maximum | Share-based Payment Arrangement, Tranche One                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Term of contract   10 years                        
Incentive Stock Options | Share-based Payment Arrangement, Tranche Two                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Award vesting percentage   10.00%                        
Incentive Stock Options | Minimum | Share-based Payment Arrangement, Tranche Two                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Exercise price of option on fair value (as a percent)   110.00%                        
Incentive Stock Options | Maximum | Share-based Payment Arrangement, Tranche Two                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Term of contract   5 years                        
Restricted Stock Awards                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Total unrecognized compensation expense, weighted-average period of recognition   1 year 3 months 18 days                        
Total fair value of restricted stock awards vested   $ 3,575                        
Total unrecognized compensation expense   $ 11,015                        
Restricted Stock Awards | Forecast                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Number of restricted stock awards are expected to vest       75 180 136 237 113 113 140 338 120 121 135
2020 Incentive Award Plan                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Common stock reserved for issuance 3,333 3,880                        
Percentage of outstanding shares of common stock 5.00%                          
PDL Equity Incentive Plan                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Total fair value of restricted stock awards vested   $ 0 65                      
PDL Equity Incentive Plan | PDL Award                            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                            
Stock-based compensation expense   $ 0 $ 38