RESTRUCTURING AND INTEGRATION CHARGES AND IMPAIRMENT LOSSES (LIABILITY CLASSIFICATION TABLE) (DETAILS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 1,811	$ (72)	$ 1,854	$ 16
Facility exit charges		186	126	186
Restructuring charges, net	3,593	114	3,762	202
Customer Management Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	1,797	(92)	1,761	(4)
Facility exit charges		153	42	153
Customer Technology Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 14	10	93	10
Facility exit charges		33	$ 84	33
Customer Strategy Services
Restructuring Cost and Reserve [Line Items]
Reduction in force		$ 10		$ 10