Annual report pursuant to Section 13 and 15(d)

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

v3.21.1
Stock Based Compensation - Schedule of Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs) [Member]
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of Options, Outstanding | shares 1,821,852
RSUs granted | shares 1,005,109
RSUs forfeited | shares (211,354)
RSUs vested | shares (1,194,439)
Number of Options, Outstanding | shares 1,421,168
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares $ 10.05
Weighted Average Grant Date Fair Value, RSUs granted | $ / shares 1.68
Weighted Average Grant Date Fair Value, RSUs forfeited | $ / shares 7.82
Weighted Average Grant Date Fair Value, RSUs vested | $ / shares 7.71
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares $ 6.43