INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Gross unrecognized tax benefits | |||
| Balance at the beginning of the year | $ 9,426 | $ 9,186 | $ 8,901 |
| Decrease related to prior year tax positions | (843) | ||
| Increase related to current year tax positions | 89 | 240 | 285 |
| Balance at the end of the year | 8,672 | $ 9,426 | $ 9,186 |
| Unrecognized tax benefits decrease, evaluation of prior orphan drug credits | 4,700 | ||
| Tax positions subject to interest or penalties | $ 0 | ||
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from evaluation of prior orphan drug credits. No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|