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Stock-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended
Jan. 01, 2021
Sep. 16, 2020
Sep. 02, 2020
Jul. 01, 2020
Mar. 31, 2021
Employee Stock Purchase Plan (“ESPP”)          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Common stock reserved for future issuance   724,000      
Share-based payment award, expiration period   10 years      
Share-based payment award, expiration date   Jan. 01, 2030      
Percentage of automatic increase every year in common stock shares reserved for future issuance   1.00%      
Share-based payment award, terms of award issuance         The number of shares of common stock that are automatically added on January 1st of each year for a period of up to ten years, commencing on the first January 1 following the IPO Date and ending on (and including) January 1, 2030, in an amount equal to the lesser of (i) one percent (1.0%) of the total number of shares of capital stock outstanding on December 31st of the preceding calendar year, and (ii) 724,000 shares of common stock.
Share-based payment award, options granted 0        
Number of shares of common stock issued under ESPP         0
Employee Stock Purchase Plan (“ESPP”) | Maximum          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of shares authorized for issuance   362,000      
Restricted Stock Units          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition         1 year 8 months 12 days
Share-based payment award, unvested RSU/RSA granted, compensation cost not yet recognized         $ 15,400,000
Stock Options          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, options granted         1,621,900
Share-based payment award, options granted, exercise price per share         $ 28.81
Share-based payment award, options, compensation cost not yet recognized         $ 37,000,000
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition         3 years 8 months 12 days
Restricted Stock Awards          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition         2 years
Share-based payment award, unvested RSU/RSA granted, compensation cost not yet recognized         $ 3,000,000
Share-based payment award, RSU/RSA granted, weighted average grant date fair value       $ 5.28  
2020 Equity Incentive Plan          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of shares authorized for issuance   3,845,294      
Common stock reserved for future issuance   209,841      
Share-based payment award, plan modification, incremental cost         $ 0
2020 Equity Incentive Plan | Cancelled Options | Certain Employees and Consultants          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, options granted       2,896,782  
Share-based payment award, options granted, exercise price per share       $ 0.80  
Award vesting period       4 years  
Share-based payment award, options grant date fair value       $ 13,800,000  
2020 Equity Incentive Plan | Restricted Stock Units          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award vesting period     4 years    
Number of shares awarded     2,518,932    
Share-based payment award, RSU/RSA granted     331,121    
2020 Equity Incentive Plan | Restricted Stock Units | Share-based Payment Arrangement, Tranche One          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, vesting rights percentage     25.00%    
2020 Equity Incentive Plan | Restricted Stock Units | Share-based Payment Arrangement, Tranche Two          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, vesting rights percentage     25.00%    
2020 Equity Incentive Plan | Restricted Stock Units | Share-based Payment Arrangement, Tranche Three          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, vesting rights percentage     25.00%    
2020 Equity Incentive Plan | Restricted Stock Units | Share-based Payment Arrangement, Tranche Four          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, vesting rights percentage     25.00%    
2020 Equity Incentive Plan | Restricted Stock Awards | RA Session II          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, RSU/RSA granted       769,058  
Award requisite service vesting period       3 years  
2020 Equity Incentive Plan | Common Stock          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of shares authorized for issuance   3,845,294   3,529,412  
New Plan          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Common stock reserved for future issuance 1,434,934 3,390,168      
Share-based payment award, expiration period   10 years      
Share-based payment award, commencement date   Jan. 01, 2021      
Share-based payment award, expiration date   Jan. 01, 2030      
Percentage of automatic increase every year in common stock shares reserved for future issuance   5.00%      
Share-based payment award, terms of award issuance         At December 31, 2020, there were 2,941,509 shares available for future grant under the New Plan. The number of shares of common stock reserved for issuance under the New Plan will automatically increase on January 1 of each year, for a period of ten years, from January 1, 2021 continuing through January 1, 2030, by 5% of the total number of shares of common stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares as may be determined by the Company’s board of directors. On January 1, 2021 the board of directors increased the number of common stock reserved for issuance under the New Plan by 1,434,934 shares.
New Plan | Stock Options          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Share-based payment award, expiration period         10 years
Share-based payment award, options granted         1,621,900
Award vesting period         4 years
Share-based payment award, options, weighted-average grant date fair value         $ 18.75