Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of the Stock Based Compensation Expense based on Roles and Responsibilities of the Employees (Detail)

v3.22.2.2
Stock-Based Compensation - Summary of the Stock Based Compensation Expense based on Roles and Responsibilities of the Employees (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense $ 2,099 $ 531 $ 6,600 $ 1,451
Cost of revenue        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense 31 9 75 26
Research and development        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense 590 225 1,843 668
Sales and marketing        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense 550 74 1,278 219
General and administrative        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Share-based Payment Arrangement, Expense $ 928 $ 223 $ 3,404 $ 538