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Stock-Based Compensation - Narrative (Details)
 1 Months Ended 3 Months Ended 9 Months Ended
Jul. 19, 2022
USD ($)
$ / shares
shares
May 31, 2021
USD ($)
shares
Sep. 30, 2023
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Jun. 21, 2022
employee
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares as percentage of common shares outstanding         5.00%      
Number of shares reserved for future issuance (in shares) | shares     6,730,462   6,730,462      
Plan modification, incremental cost $ 5,200,000              
Expected dividend rate         0.00%      
Expected exercise barrier (in dollars per share) | $ / shares     $ 2.57   $ 2.57      
Total stock-based compensation     $ 15,354,000 $ 21,148,000 $ 50,718,000 $ 66,354,000    
Issuance of common stock upon exercise of stock options and vesting of RSUs (in shares) | shares   293,594            
Accrued and other liabilities, related to shares held by employees and directors that were subject to repurchase     1,100,000   1,100,000   $ 1,900,000  
Other long term liabilities, related to shares held by employees and directors that were subject to repurchase     0   $ 0   $ 600,000  
Stock Option                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period         4 years      
Restricted Stock Unit                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period         4 years      
Unrecognized stock based compensation expense     60,100,000   $ 60,100,000      
Unrecognized stock based compensation expense, weighted average recognition period (in years)         2 years 176 days      
Restricted stock units, granted (in shares) | shares         11,215,162      
Stock options to purchase common stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period 3 years              
Exchange offer, number of employees | employee               199
Exchange offer, number of options accepted for cancellation (in shares) | shares               3,666,600
Exchange offer, number of options accepted for cancellation as a percent of shares outstanding               0.935
Number of options, options granted (in shares) | shares 3,666,600              
Weighted average exercise price (in dollars per share) | $ / shares $ 13.31              
Expiration period 7 years              
Grants in period, weighted average grant date fair value (in dollars per share) | $ / shares         $ 3,450,000      
Unrecognized stock based compensation expense     $ 67,000,000   $ 67,000,000      
Unrecognized stock based compensation expense, weighted average recognition period (in years)         2 years 198 days      
Expected volatility         73.74%      
Expected risk-free rate         3.06%      
Expected dividend rate         0.00%      
Expected exercise barrier (in dollars per share) | $ / shares     $ 2.57   $ 2.57      
Early exercised stock options subject to future vesting                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Proceeds from stock options exercised   $ 5,300,000            
Performance-Based Restricted Stock Units | Certain Executive Officers And Other Employees                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Restricted stock units, granted (in shares) | shares         3,069,751      
Total stock-based compensation     $ 0          
Restricted Stock Units (RSUs) With Market Condition | Certain Executive Officers And Other Employees                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Restricted stock units, granted (in shares) | shares         1,994,125      
Total stock-based compensation         $ 1,500,000      
Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock option grant period         10 years      
Option exercise price as percentage of fair value of common stock on grate date         100.00%      
Option exercise price as a percentage of fair value of common stock on grant date         110.00%      
Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Combined voting power by individual (as a percent)         10.00%