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GOODWILL (GOODWILL ROLLFORWARD) (DETAILS) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Goodwill [Line Items] |  |
Beginning balance, goodwill | $ 129,648 | $ 114,183
Acquisitions / Adjustments | 73,273 | (17,997)
Impairments |  | (1,363)
Effect of Foreign Currency | 3,773 | (1,169)
Ending balance, goodwill | 206,694 | 129,648
Customer Management Services |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 42,589 | 23,218
Acquisitions / Adjustments | 73,934 | (21,030)
Impairments |  | (1,363)
Effect of Foreign Currency | 2,974 | (296)
Ending balance, goodwill | 119,497 | 42,589
Customer Growth Services |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 24,439 | 24,439
Acquisitions / Adjustments | 0 | 0
Ending balance, goodwill | 24,439 | 24,439
Customer Technology Services |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 41,500 | 41,500
Acquisitions / Adjustments | (661) | 0
Ending balance, goodwill | 40,839 | 41,500
Customer Strategy Services |  |
Goodwill [Line Items] |  |
Beginning balance, goodwill | 21,120 | 25,026
Acquisitions / Adjustments | 0 | 3,033
Effect of Foreign Currency | 799 | (873)
Ending balance, goodwill | $ 21,919 | $ 21,120

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