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Stock-Based Compensation - Narrative (Details) - USD ($) |  |  |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 11, 2023 | May 11, 2022 | May 12, 2021 | May 12, 2020 | Jan. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 16, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Shares available for grant (in shares) |  |  |  |  |  | 7,180,171 |  |  |  |
Inducement stock option granted to new employees (in shares) |  |  |  |  |  | 2,674,290 | 1,068,310 |  |  |
Options outstanding (in shares) |  |  |  |  |  | 22,512,569 | 17,525,296 | 14,088,960 | 12,263,402 |
PSUs |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options outstanding (in shares) |  |  |  |  |  | 266,550 |  |  |  |
Granted (in shares) |  |  |  |  | 271,612 |  |  |  |  |
Potential award payout |  |  |  |  |  | 100.00% |  |  |  |
Volatility rate |  |  |  |  | 65.40% |  |  |  |  |
Risk-free interest rate |  |  |  |  | 1.03% |  |  |  |  |
Weighted average grant date fair value (in dollars per share) |  |  |  |  | $ 39.12 |  |  |  |  |
Unrecognized compensation expense |  |  |  |  |  | $ 10,400,000 |  |  |  |
PSUs | Minimum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Potential award payout |  |  |  |  |  | 0.00% |  |  |  |
PSUs | Maximum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Potential award payout |  |  |  |  |  | 250.00% |  |  |  |
Common stock options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Total intrinsic value of stock options exercised during the period |  |  |  |  |  | $ 6,000,000 | $ 11,100,000 | $ 22,100,000 |  |
Unrecognized compensation expense related to unvested stock options |  |  |  |  |  | $ 130,300,000 |  |  |  |
Expected weighted average period for recognizing unrecognized compensation expense |  |  |  |  |  | 2 years 8 months 12 days |  |  |  |
Common stock options | Minimum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Volatility rate |  |  |  |  |  | 62.00% | 69.00% | 70.00% |  |
Risk-free interest rate |  |  |  |  |  | 3.36% | 1.37% | 0.36% |  |
Common stock options | Maximum |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Volatility rate |  |  |  |  |  | 70.00% | 70.00% | 71.00% |  |
Risk-free interest rate |  |  |  |  |  | 4.72% | 4.27% | 1.20% |  |
Restricted Stock and Restricted Stock Units |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of common shares each award holder is entitled to receive (in shares) |  |  |  |  |  | 1 |  |  |  |
RSUs |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Unrecognized compensation expense related to unvested awards |  |  |  |  |  | $ 40,700,000 |  |  |  |
Expected weighted average period for recognizing unrecognized compensation expense |  |  |  |  |  | 2 years 8 months 12 days |  |  |  |
Granted (in shares) |  |  |  |  |  | 1,934,822 | 1,021,219 | 607,578 |  |
Employee Stock |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Stock-based compensation expense |  |  |  |  |  | $ 1,900,000 | $ 1,300,000 | $ 1,300,000 |  |
Performance-Conditioned Options |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Options outstanding (in shares) |  |  |  |  |  | 114,780 | 114,780 |  |  |
Stock-based compensation |  |  |  |  |  | $ 0 | $ 0 |  |  |
2019 Incentive Plan |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Shares of common stock, maximum authorized for issuance (in shares) |  |  |  |  |  |  |  |  |  | 3,500,000
Number of additional shares authorized (in shares) |  |  | 2,750,000 | 4,500,000 |  |  |  |  |  |
2019 Incentive Plan, Third Amendment |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of additional shares authorized (in shares) |  | 3,000,000 |  |  |  |  |  |  |  |
Amended and Restated Plan |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of additional shares authorized (in shares) | 10,500,000 |  |  |  |  |  |  |  |  |

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