INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Gross unrecognized tax benefits | ||
| Balance at the beginning of the year | $ 8,358,000 | $ 7,849,000 |
| Increase related to current year tax positions | 543,000 | 509,000 |
| Balance at the end of the year | 8,901,000 | 8,358,000 |
| Unrecognized tax benefits, if recognized, would result in adjustments to other tax accounts, primarily deferred taxes | 8,000,000.0 | $ 7,200,000 |
| Tax positions subject to interest or penalties | $ 0 | |
| X | ||||||||||
- Definition Represents the total amount of unrecognized tax benefits that, if recognized, would affect the amount of other tax accounts including deferred taxes. 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 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://fasb.org/us-gaap/role/ref/legacyRef
|
| 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://fasb.org/us-gaap/role/ref/legacyRef
|