Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Stock Option Activity Under Equity Incentive Plan (Detail)

v3.21.2
Stock Based Compensation - Stock Option Activity Under Equity Incentive Plan (Detail) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]      
Outstanding Options Number of Shares, Beginning Balance 6,697,927 4,763,062  
Number of Shares, Options granted 2,354,118 2,453,506  
Number of Shares, Options exercised (154,071) (261,260)  
Number of shares, Options cancelled (324,221) (257,381)  
Outstanding Options Number of Shares, Ending Balance 8,573,753 6,697,927 4,763,062
Outstanding Options Number of Shares, Vested and expected to vest, June 30, 2021 8,573,753    
Outstanding Options Number of Shares, Exercisable at June 20, 2021 3,873,374    
Weighted Average Exercise Price, Beginning Balance $ 9.13 $ 6.36  
Weighted Average Exercise Price, Options granted 13.67 14.06  
Weighted Average Exercise Price, Options exercised 4.70 3.99  
Weighted Average Exercise Price, Options cancelled 12.21 9.99  
Weighted Average Exercise Price, Ending Balance 10.34 $ 9.13 $ 6.36
Weighted Average Exercise Price, Vested and expected to vest, June 30, 2021 10.34    
Weighted Average Exercise Price, Exercisable at June 30, 2021 $ 8.24    
Weighted-Average Remaining Contractual Term, Outstanding 7 years 7 years 9 months 3 days 8 years 1 month 6 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest, June 30, 2021 7 years    
Weighted-Average Remaining Contractual Term, Exercisable at June 30, 2021 5 years 11 months 23 days    
Aggregate Intrinsic Value, Outstanding $ 7,870 $ 13,790 $ 36,630
Aggregate Intrinsic Value, Vested and expected to vest, June 30, 2021 7,870    
Aggregate Intrinsic Value, Exercisable at June 30, 2021 $ 5,820