Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Stock Options - Additional Information (Detail)

v3.19.3.a.u2
Stock-Based Compensation - Stock Options - Additional Information (Detail)
12 Months Ended
Dec. 31, 2019
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized stock-based compensation expense related to non-vested stock options $ 13,100,000
2017 Omnibus Plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options priced at fair market value, percent 100.00%
Stock option expiration period 10 years
Stock option, vesting period 6 years
Weighted average remaining contractual term 6 years 9 months 18 days
Aggregate intrinsic value of options outstanding and exercisable $ 3,300,000
Employee Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Dividends paid on common stock $ 0
Unrecognized stock-based compensation expense, expected recognition weighted-average period 56 months