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)

v3.20.2
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, 2020
Jun. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected volatility 53.96% 47.54%
Expected dividends 7.30% 9.22%
Expected term (in years) 7 years 7 months 6 days 7 years 6 months
Risk-free interest rate 1.14% 2.61%