Annual report pursuant to Section 13 and 15(d)

401(k) Plan - Additional Information (Detail)

v3.21.1
401(k) Plan - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Retirement Benefits [Abstract]    
Employees contribution to qualified savings plan $ 750,000 $ 750,000