RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY CLASSIFICATION TABLE) (DETAILS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 622	$ 593	$ 1,629	$ 1,750
Restructuring charges, net	622	593	1,629	1,750
Customer Management Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	516	358	1,331	1,404
Customer Growth Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force				37
Customer Technology Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	13	$ 235	13	$ 309
Customer Strategy Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 93		$ 285