Quarterly report pursuant to Section 13 or 15(d)

Equity Based Awards - Additional Information (Detail)

v3.21.2
Equity Based Awards - Additional Information (Detail) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Common stock reserved for future issuance 57,125,000   57,125,000   130,804,276
Share-based payment award, Aggregate intrinsic value of option outstanding $ 132,200,000   $ 132,200,000    
Stock based compensation expense 2,800,000 $ 521,000 5,774,000 $ 1,528,000  
Earnout [Member]          
Stock based compensation expense $ 5,600,000   $ 5,600,000    
2013 Stock Plan [Member]          
Share-based compensation, number of shares available for grant 0   0    
Share-based payment award, Vested and expected to vest shares outstanding 15,950,824   15,950,824    
Share-based payment award, options grants to purchase shares     0 1,085,300  
Share-based payment award, Fair value of option granted       $ 1,200,000  
Share-based payment award, Compensation cost not yet recognized $ 21,800,000   $ 21,800,000    
Share-based payment award, Compensation cost not yet recognized, Period of recognition     1 year 3 months    
2021 Stock Option Plan [Member]          
Common stock reserved for future issuance 22,088,566   22,088,566    
Stock option and incentive plan description     Under the 2021 Plan, the Company can grant stock options, stock appreciation rights, restricted stock awards, restricted stock units (“RSUs”), unrestricted stock awards, cash-based awards, and dividend equivalent rights. The 2021 Plan provides that an additional number of shares of common stock will automatically be added to the shares of common stock authorized for issuance under the 2021 Plan on January 1 of each year. The number of shares of common stock added each year will be equal to (i) 5% of the number of shares of common stock issued and outstanding on the immediately preceding December 31 or (ii) such lesser amount as determined by the Company’s Board of Directors.    
2021 ESPP          
Common stock reserved for future issuance 4,700,000   4,700,000    
2021 employee stock purchase plan description     At each offering period, the eligible employee will have the option to acquire common stock at a discount of up to 15% of the lesser of the Company’s common stock on (i) the first trading day of the offering period or (ii) the last day of the offering period. The offering periods under the 2021 ESPP are not to exceed 27 months between periods. On January 1 of each subsequent year under the plan, the number of shares available for issuance under the plan will be increased by the lesser of (i) 4,700,000 shares of common stock, (ii) one percent of the number of shares of common stock issued and outstanding as of December 31 of the immediately preceding year, or (iii) number of shares of common stock determined by the Company.    
Authorize payroll deductions rate under plan minimum     1.00%    
Authorize payroll deductions rate under plan maximum     15.00%    
Recognized stock compensation expense $ 0   $ 0    
Share-based compensation, number of shares available for grant 0   0    
2021 ESPP | Maximum [Member]          
Authorize payroll deductions amount under plan     $ 25,000