Property and Equipment - Net - Schedule of Impaired Intangible Assets (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Dec. 31, 2019 |
|
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | $ 218 | $ 1,525 | $ 218 | $ 1,751 |
| Computer equipment | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | 27 | 2 | 27 | 2 |
| Computer software | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | 0 | 1,331 | 0 | 1,557 |
| Furniture and fixtures | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | 57 | 102 | 57 | 102 |
| Leasehold improvements | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | 32 | 90 | 32 | 90 |
| Work in process (primarily software development costs) | ||||
| Property, Plant and Equipment [Line Items] | ||||
| Impairment charge on reclassified assets | $ 102 | $ 0 | $ 102 | $ 0 |