Stock-based Compensation - Summary of Allocated Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | ||
---|---|---|---|
Feb. 24, 2020 |
Mar. 31, 2021 |
Mar. 31, 2020 |
|
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
Stock-based compensation expense | $ 1,308 | $ 3,995 | |
Research and Development Expense [Member] | |||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
Stock-based compensation expense | 241 | 219 | |
General and Administrative Expense [Member] | |||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
Stock-based compensation expense | $ 1,067 | 1,652 | |
Restructuring Charges [Member] | |||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | |||
Stock-based compensation expense | $ 2,100 | $ 2,124 |