Quarterly report pursuant to Section 13 or 15(d)

Stock Plans and Stock-Based Compensation - Additional Information (Detail)

v3.21.1
Stock Plans and Stock-Based Compensation - Additional Information (Detail) - shares
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Jan. 01, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of option granted to employees 1,312,216    
2020 New Hire Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for grant 750,000    
2013 and 2020 New Hire Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for grant 2,434,439    
2013 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for grant 1,684,439    
Share reserved for issue     2,757,843
Maximum [Member] | 2013 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Incentive awards vested percentage   5.00%  
Minimum [Member] | 2013 Equity Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Incentive awards vested percentage   4.00%