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GOODWILL (GOODWILL ROLLFORWARD) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Goodwill [Line Items] |  |
Beginning balance, goodwill | $ 204,633 | $ 209,727
Acquisitions / Adjustments Increase (Decrease) | 96,993 | 1,107
Effect of Foreign Currency | 68 | (6,201)
Ending balance, goodwill | 301,694 | 204,633
TTEC Digital |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 66,158 | 65,791
Acquisitions / Adjustments Increase (Decrease) | 0 | 1,232
Effect of Foreign Currency | 117 | (865)
Ending balance, goodwill | 66,275 | 66,158
TTEC Engage |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 138,475 | 143,936
Acquisitions / Adjustments Increase (Decrease) | 96,993 | (125)
Effect of Foreign Currency | (49) | (5,336)
Ending balance, goodwill | $ 235,419 | $ 138,475

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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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