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INCOME TAXES - SCHEDULE OF INCOME TAX CONTINGENCIES (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |  |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 100 | $ 1,300 | $ 1,700
Unrecognized Tax Benefits, Interest on Income Taxes Expense | (800) | (200) | (100)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Beginning balance January 1 | 1,293 | 4,348 | 6,181
Reductions for tax positions of prior years | 0 | 0 | (155)
Settlements | (1,290) | (2,646) | (1,025)
Lapse in statute of limitations | 0 | (287) | (755)
Ending balance December 31 | 54 | 1,293 | 4,348
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation | $ 51 |  | $ 102
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation |  | $ (122) |

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