Property and Equipment - Narrative (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Property, Plant and Equipment [Line Items] | ||
| Cost | $ 232,872,000 | $ 191,718,000 |
| Impairment charge | 1,709,000 | 16,838,000 |
| Gain (loss) on disposal of assets | 0 | |
| Leasehold improvements and furniture fixtures | ||
| Property, Plant and Equipment [Line Items] | ||
| Cost | $ 0 | 40,457,000 |
| Leasehold improvements and furniture fixtures | Minimum | ||
| Property, Plant and Equipment [Line Items] | ||
| Useful life (in years) | 2 years | |
| Leasehold improvements and furniture fixtures | Maximum | ||
| Property, Plant and Equipment [Line Items] | ||
| Useful life (in years) | 3 years | |
| Furniture and equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Cost | $ 28,751,000 | 30,716,000 |
| Useful life (in years) | 4 years | |
| Computer equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Cost | $ 33,505,000 | 24,387,000 |
| Useful life (in years) | 3 years | |
| Original cost | $ 13,191,000 | $ 1,677,000 |