Stock-based Compensation - Summary of RSU Activity (Details) - RSU |
12 Months Ended |
|---|---|
|
Dec. 31, 2020
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] | |
| Beginning unvested balance (in shares) | shares | 677,354 |
| Granted (in shares) | shares | 1,250,595 |
| Vested (in shares) | shares | (503,048) |
| Forfeited (in shares) | shares | (38,168) |
| Ending unvested balance (in shares) | shares | 1,386,733 |
| Weighted Average Exercise Price | |
| Beginning unvested balance (in dollars per share) | $ / shares | $ 1.54 |
| Granted (in dollars per share) | $ / shares | 1.18 |
| Vested (in dollars per share) | $ / shares | 1.38 |
| Forfeited (in dollars per share) | $ / shares | 1.53 |
| Ending invested balance (in dollars per share) | $ / shares | $ 1.27 |