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RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY ROLLFORWARD TABLE) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |
Beginning balance, restructuring reserve | $ 3,642 | $ 2,103
Expense | 1,751 | 6,324
Payments | (2,107) | (4,417)
Changes due to foreign currency | (40) | (175)
Change in estimates | (4) | (193)
Ending balance, restructuring reserve | 325 | 3,642
ASU 2016-02 |  |
Restructuring Cost and Reserve [Line Items] |  |
Change in estimates | (2,917) |
Reduction in Force [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning balance, restructuring reserve | 416 | 694
Expense | 1,039 | 1,021
Payments | (1,145) | (937)
Changes due to foreign currency | (55) | (169)
Change in estimates | (4) | (193)
Ending balance, restructuring reserve | 251 | 416
Closure of Delivery Centers [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Beginning balance, restructuring reserve | 3,226 | 1,409
Expense | 712 | 5,303
Payments | (962) | (3,480)
Changes due to foreign currency | 15 | (6)
Ending balance, restructuring reserve | 74 | $ 3,226
Closure of Delivery Centers [Member] | ASU 2016-02 |  |
Restructuring Cost and Reserve [Line Items] |  |
Change in estimates | $ (2,917) |

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