RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY CLASSIFICATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 2,745	$ 1,551	$ 20,900	$ 2,226
Facility exit charges	(305)	65	(206)	72
Total	2,440	1,616	20,694	2,298
Customer Management Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	2,620	1,355	20,072	1,920
Facility exit charges	(305)	65	(206)	72
Customer Growth Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	67	11	202	121
Facility exit charges	0	0	0	0
Customer Technology Services
Restructuring Cost and Reserve [Line Items]
Reduction in force	0	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	58	185	570	185
Facility exit charges	$ 0	$ 0	$ 0	$ 0