Stock-Based Compensation Plans - Summary of RSU Activity (Details) - Restricted Stock Units (RSUs) |
9 Months Ended |
|---|---|
|
Sep. 30, 2020
$ / shares
shares
| |
| Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units [Roll Forward] | |
| Beginning balance (in shares) | shares | 0 |
| Granted (in shares) | shares | 3,915,150 |
| Exercised (in shares) | shares | 0 |
| Forfeited and canceled (in shares) | shares | (25,293) |
| Ending balance (in shares) | shares | 3,889,857 |
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] | |
| Beginning balance (in dollars per share) | $ / shares | $ 0 |
| Granted (in dollars per share) | $ / shares | 11.86 |
| Exercised (in dollars per share) | $ / shares | 0 |
| Forfeited and canceled (in dollars per share) | $ / shares | 8.50 |
| Ending balance (in dollars per share) | $ / shares | $ 11.88 |