Share-Based Compensation - Weighted-average Assumptions (Details) - Options to purchase common stock - $ / shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Expected stock price volatility | 61.00% | 62.70% | 62.20% | 65.80% |
| Risk free interest rate | 3.10% | 0.80% | 1.70% | 0.50% |
| Expected life of options (years) | 5 years 3 months 18 days | 5 years 4 months 24 days | 5 years 3 months 18 days | 5 years 4 months 24 days |
| Expected annual dividend per share (in dollars per share) | $ 0 | $ 0 | $ 0 | $ 0 |