Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Summary of Activity of Restricted Stock Units (Detail)

v3.20.2
Stock-Based Compensation - Summary of Activity of Restricted Stock Units (Detail) - Restricted Stock Units [Member]
6 Months Ended
Jun. 30, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of restricted stock units outstanding, Unvested beginning balance | shares 813,526
Number of restricted stock units outstanding, Vested | shares (117,389)
Number of restricted stock units outstanding, Forfeited | shares (51,479)
Number of restricted stock units outstanding, Unvested ending balance | shares 644,658
Weighted-average grant date fair value, Unvested beginning balance | $ / shares $ 10.31
Weighted-average grant date fair value, Vested | $ / shares 9.97
Weighted-average grant date fair value, Forfeited | $ / shares 10.59
Weighted-average grant date fair value, Unvested ending balance | $ / shares $ 10.35