Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Restricted Stock Units - Additional Information (Detail)

v3.20.2
Stock-Based Compensation - Restricted Stock Units - Additional Information (Detail) - Restricted Stock Units [Member]
$ in Millions
9 Months Ended
Sep. 30, 2020
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized stock-based compensation expense related to restricted stock units $ 2.4
Unrecognized stock-based compensation expense, expected recognition weighted-average period 26 months
2017 Omnibus Plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 5 years