RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY CLASSIFICATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 16,197	$ (57)	$ 18,155	$ 675
Facility exit charges	99	0	99	7
Total	16,296	(57)	18,254	682
Customer Management Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	15,909	(57)	17,453	565
Facility exit charges	99	0	99	7
Customer Growth Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	32	0	135	110
Facility exit charges	0	0	0	0
Customer Technology Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	56	0	56	0
Facility exit charges	0	0	0	0
Customer Strategy Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	0	0	0	0
Facility exit charges	0	0	0	0
Corporate
Restructuring Cost and Reserve [Line Items]
Reduction in force	200	0	511	0
Facility exit charges	$ 0	$ 0	$ 0	$ 0