Property and Equipment-Net - Schedule of Long Lived Tangible Assets by Geographic Area (Detail) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived tangible assets | $ 10,815 | $ 14,948 |
| United States | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived tangible assets | 10,661 | 14,629 |
| International | ||
| Revenues from External Customers and Long-Lived Assets [Line Items] | ||
| Total long-lived tangible assets | $ 154 | $ 319 |