GOODWILL (GOODWILL ROLLFORWARD) (DETAILS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Beginning balance, goodwill	$ 114,183	$ 128,705
Acquisitions / Adjustments	17,997	3,600
Impairments	(1,363)	(7,725)
Effect of Foreign Currency	(1,169)	(3,197)
Ending balance, goodwill	129,648	114,183
Customer Management Services
Goodwill [Line Items]
Beginning balance, goodwill	23,218	27,080
Acquisitions / Adjustments	21,030	0
Impairments	(1,363)	(1,769)
Effect of Foreign Currency	(296)	(2,093)
Ending balance, goodwill	42,589	23,218
Customer Growth Services
Goodwill [Line Items]
Beginning balance, goodwill	24,439	30,395
Acquisitions / Adjustments	0	0
Impairments		(5,956)
Ending balance, goodwill	24,439	24,439
Customer Technology Services
Goodwill [Line Items]
Beginning balance, goodwill	41,500	41,500
Acquisitions / Adjustments	0	0
Ending balance, goodwill	41,500	41,500
Customer Strategy Services
Goodwill [Line Items]
Beginning balance, goodwill	25,026	29,730
Acquisitions / Adjustments	(3,033)	3,600
Effect of Foreign Currency	(873)	(1,104)
Ending balance, goodwill	$ 21,120	$ 25,026