Business Combination - Summary of Valuation of Intangible Assets Acquired (Details) - Boston-based Dataxu, Inc, Demand-Side Platform (DSP) $ in Thousands |
Nov. 08, 2019
USD ($)
|
|---|---|
| Finite Lived Intangible Assets [Line Items] | |
| Estimated Fair Value | $ 70,200 |
| Developed Technology | |
| Finite Lived Intangible Assets [Line Items] | |
| Estimated Fair Value | $ 56,400 |
| Estimated Useful Lives (in years) | 6 years |
| Customer Relationships | |
| Finite Lived Intangible Assets [Line Items] | |
| Estimated Fair Value | $ 13,400 |
| Estimated Useful Lives (in years) | 4 years |
| Tradename | |
| Finite Lived Intangible Assets [Line Items] | |
| Estimated Fair Value | $ 400 |
| Estimated Useful Lives (in years) | 6 months |