Property and Equipment, Net - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 313,161 | $ 286,227 |
| Less: accumulated depreciation and amortization | (134,452) | (112,560) |
| Property and equipment, net | 178,709 | 173,667 |
| Computer Hardware and Software | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 35,040 | 27,528 |
| Leasehold Improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 175,850 | 165,150 |
| Furniture and Equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 74,987 | 85,366 |
| Construction in Progress | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 27,284 | $ 8,183 |