Quarterly report pursuant to Section 13 or 15(d)

Stock Incentive Plan - Schedule of Weighted-Average Assumptions Used to Estimate Fair Value of Stock Options and Restricted Stock Awards using Black-Scholes Option Valuation Model (Detail)

v3.21.2
Stock Incentive Plan - Schedule of Weighted-Average Assumptions Used to Estimate Fair Value of Stock Options and Restricted Stock Awards using Black-Scholes Option Valuation Model (Detail)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected volatility 74.83% 53.96%
Expected dividends 0.00% 7.30%
Expected term (in years) 7 years 8 months 12 days 7 years 7 months 6 days
Risk-free interest rate 0.96% 1.14%