CASH, CASH EQUIVALENTS AND RESTRICTED CASH - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|---|---|
| Cash and Cash Equivalents [Abstract] | ||||
| Cash and cash equivalents | $ 143,964 | $ 29,265 | $ 25,044 | |
| Restricted cash included in Other current assets | 1,083 | 270 | 412 | |
| Restricted cash included in Other assets | 832 | 1,147 | 2,440 | |
| Total Cash, Cash Equivalents, and Restricted Cash shown in the Consolidated Statements of Cash Flows | $ 145,879 | $ 30,682 | $ 27,896 | $ 26,155 |