Commitments and Contingencies - Defined Contribution Plan (Details) - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jan. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Other Commitments [Line Items] | |||
| Employer matching contribution (as a percent) | 50.00% | ||
| Company matching contribution | $ 0.6 | $ 0.2 | |
| Maximum | |||
| Other Commitments [Line Items] | |||
| Maximum employee contribution | 6.00% | ||