GOODWILL (GOODWILL ROLLFORWARD) (DETAILS) (USD $) In Thousands, unless otherwise specified	12 Months Ended						12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Customer Management Services [Member]	Dec. 31, 2012 Customer Management Services [Member]	Dec. 31, 2013 Customer Growth Services [Member]	Dec. 31, 2011 Customer Growth Services [Member]	Dec. 31, 2013 Customer Technology Services [Member]	Dec. 31, 2012 Customer Technology Services [Member]	Dec. 31, 2013 Customer Strategy Services [Member]	Dec. 31, 2012 Customer Strategy Services [Member]
Goodwill [Line Items]
Beginning balance, goodwill	$ 98,241	$ 70,844	$ 20,288	$ 20,594	$ 24,439	$ 24,439	$ 42,153	$ 18,516	$ 11,361	$ 7,295
Acquisitions	6,167	27,703			5,689		478	23,637		4,066
Deconsolidation of Subsidiary	(1,274)								(1,274)
Effect of Foreign Currency	(391)	(306)	(469)	(306)			78
Ending balance, goodwill	$ 102,743	$ 98,241	$ 19,819	$ 20,288	$ 30,128	$ 24,439	$ 42,709	$ 42,153	$ 10,087	$ 11,361