Net Loss Per Common Share Data - Schedule of Securities Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
|
| Stock options | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive equity awards (in shares) | 6,552,062 | 7,622,972 | 6,849,551 | 7,617,538 |
| Restricted stock units | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive equity awards (in shares) | 979,828 | 578,150 | 802,436 | 390,519 |
| Performance based stock units | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive equity awards (in shares) | 391,397 | 148,895 | 325,983 | 74,447 |