Net Loss Per Common Share - Anti-Dilutive Securities Excluded from the Computation of Diluted Net Loss per Share (Detail) - shares shares in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from the computation of diluted loss per share | 14,061 | 10,805 | 14,061 | 10,805 |
| Common Stock Options [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from the computation of diluted loss per share | 13,960 | 10,704 | 13,960 | 10,704 |
| Incentive Awards [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||
| Anti-dilutive securities excluded from the computation of diluted loss per share | 101 | 101 | 101 | 101 |