Summary of Significant Accounting Policies - Summary of Outstanding Potentially Dilutive Shares Excluded from Calculation of Diluted Net Loss Per Share (Details) |
9 Months Ended |
---|---|
Sep. 30, 2019
shares
| |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | |
Anti-dilutive shares of stock | 3,629,859 |
Options to Purchase Common Stock | |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | |
Anti-dilutive shares of stock | 3,206,812 |
Common Stock Subject to Repurchase | |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] | |
Anti-dilutive shares of stock | 423,047 |