DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES - Property and Equipment (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2020 | |
| Internally developed software | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 2 years |
| Software implementation costs | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 3 years |
| Computers | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 2 years |
| Security systems | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 1 year |
| Furniture and fixtures | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 5 years |
| Office equipment | |
| Property, Plant and Equipment [Line Items] | |
| Useful life | 3 years |