Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Stock-Based Compensation - Summary of Activity of Restricted Stock Units (Detail) - Restricted Stock Units [Member]
3 Months Ended
Mar. 31, 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 (51,973)
Number of restricted stock units outstanding, Forfeited | shares (50,417)
Number of restricted stock units outstanding, Unvested ending balance | shares 711,136
Weighted-average grant date fair value, Unvested beginning balance | $ / shares $ 10.31
Weighted-average grant date fair value, Vested | $ / shares 9.80
Weighted-average grant date fair value, Forfeited | $ / shares 10.45
Weighted-average grant date fair value, Unvested ending balance | $ / shares $ 10.33