v3.19.3.a.u2

Stockholders' Equity - Stock-based Compensation - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2019
Class Of Stock [Line Items] |
Stock option term | 10 years
Employee Stock Option | Tranche One |
Class Of Stock [Line Items] |
Stock granted to employees vesting rights, percentage | 25.00%
Employee Stock Option | Tranche Two |
Class Of Stock [Line Items] |
Stock granted to employees vesting rights, terms of award | one year and then 1/48th monthly thereafter
Restricted Stock Units | Tranche One |
Class Of Stock [Line Items] |
Stock granted to employees vesting rights, percentage | 25.00%
Restricted Stock Units | Tranche Two |
Class Of Stock [Line Items] |
Stock granted to employees vesting rights, terms of award | one year and then 1/16th quarterly thereafter

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