Annual report pursuant to Section 13 and 15(d)

Stock Plans - Schedule of Fair Value Assumptions of Performance Options (Detail)

v3.22.0.1
Stock Plans - Schedule of Fair Value Assumptions of Performance Options (Detail) - 2018 Performance Base Stock Incentive Plan [Member]
1 Months Ended
Aug. 31, 2020
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Amendment date stock price $ 8.83
Expected volatility 80.00%
Risk-free interest rate 0.60%
Cost of equity 12.00%