Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 286,227 | $ 279,556 |
| Less: accumulated depreciation and amortization | (112,560) | (66,996) |
| Property and equipment, net | 173,667 | 212,560 |
| Computer Hardware and Software | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 27,528 | 27,920 |
| Buildings | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 54,050 | |
| Leasehold Improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 165,150 | 107,265 |
| Furniture and Equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 85,366 | 75,570 |
| Construction in Progress | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 8,183 | $ 14,751 |