Net Loss per Share - Weighted Average Shares (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Numerator: | |||
| Net Loss | $ (196,547) | $ (167,731) | $ (163,458) |
| Denominator: | |||
| Weighted average common shares outstanding, basic and diluted | 87,950,440 | 80,624,608 | 78,688,878 |
| Net loss per share, basic and diluted | $ (2.23) | $ (2.08) | $ (2.08) |