DESCRIPTION OF BUSINESS AND ACCOUNTING POLICIES - Impairment of Long-Lived Assets and Revenue Recognition (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Impairment of Long-Lived Assets | |||
| Impairment loss | $ 0 | $ 0 | $ 0 |
| Revenue Recognition | |||
| Number of days of guarantee on home sales | 90 days | ||