Annual report pursuant to Section 13 and 15(d)

Stock Plans - Summary of Fair Value Assumptions of Stock Purchase Plan (Detail)

v3.22.0.1
Stock Plans - Summary of Fair Value Assumptions of Stock Purchase Plan (Detail) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Performance-based Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate   0.80%
Grant date stock price   $ 11.10
Expected volatility   85.00%
Employee Stock Purchase Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility, minimum 67.00% 65.00%
Expected volatility, maximum 119.00% 130.00%
Risk-free interest rate 0.10%  
Risk-free interest rate, minimum   0.10%
Risk-free interest rate, maximum   1.50%
Employee Stock Purchase Plan [Member] | Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (in years) 6 months 6 months
Employee Stock Purchase Plan [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (in years) 2 years 2 years