Segment and Geographical Information - Long-lived Assets (Details) - Geographic Concentration Risk - Net Assets, Geographic Area - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived assets | $ 92,104 | $ 111,398 |
| Long-lived assets (as a percent) | 100.00% | 100.00% |
| Canada | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived assets | $ 75,283 | $ 104,349 |
| Long-lived assets (as a percent) | 81.70% | 93.60% |
| United States | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived assets | $ 6,141 | $ 4,747 |
| Long-lived assets (as a percent) | 6.70% | 4.30% |
| Rest of World | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Long-lived assets | $ 10,680 | $ 2,302 |
| Long-lived assets (as a percent) | 11.60% | 2.10% |