Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Restricted Stock Unit Activity (Details)

v3.21.1
Stock-Based Compensation - Restricted Stock Unit Activity (Details) - Restricted stock units
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Shares  
Outstanding, beginning balance (in shares) | shares 2,436,968
Granted (in shares) | shares 2,622,029
Released (in shares) | shares (2,978,983)
Forfeited (in shares) | shares (402,954)
Outstanding, beginning balance (in shares) | shares 1,677,060
Weighted Average Grant Date Fair Value  
Outstanding, beginning balance (in dollars per share) | $ / shares $ 3.15
Granted (in dollars per share) | $ / shares 1.01
Released (in dollars per share) | $ / shares 2.28
Forfeited (in dollars per share) | $ / shares 2.88
Outstanding, ending balance (in dollars per share) | $ / shares $ 1.41