Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Summary of Stock-based Compensation Expense Recognized in Income Statement (Details)

v3.20.4
Stockholders' Equity - Summary of Stock-based Compensation Expense Recognized in Income Statement (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Class Of Stock [Line Items]      
Stock-based compensation expense $ 8,203 $ 9,129 $ 12,790
Cost of Revenue      
Class Of Stock [Line Items]      
Stock-based compensation expense 698 890 1,060
Research and Development      
Class Of Stock [Line Items]      
Stock-based compensation expense 969 1,100 1,314
Sales and Marketing      
Class Of Stock [Line Items]      
Stock-based compensation expense 2,208 1,755 2,355
General and Administrative      
Class Of Stock [Line Items]      
Stock-based compensation expense $ 4,328 $ 5,384 $ 8,061