Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plan - Summary of Defined Contribution Plan (Detail)

v3.20.2
Employee Benefit Plan - Summary of Defined Contribution Plan (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract]        
Employee benefit plan expenses $ 63 $ 58 $ 261 $ 163