RESTRUCTURING CHARGES AND IMPAIRMENT LOSSES (LIABILITY CLASSIFICATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Reduction in force	$ 2,324	$ 16,197	$ 3,175	$ 18,155
Restructuring charges, net	2,572	16,296	3,423	18,254
Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Facility exit charges	248	99	248	99
Customer Management Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	2,292	16,109	2,986	17,964
Customer Management Services [Member] \| Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Facility exit charges	248	99	248	99
Customer Growth Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	0	32	0	135
Customer Growth Services [Member] \| Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Facility exit charges	0	0	0	0
Customer Technology Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	0	56	0	56
Customer Technology Services [Member] \| Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Facility exit charges	0	0	0	0
Customer Strategy Services [Member]
Restructuring Cost and Reserve [Line Items]
Reduction in force	32	0	189	0
Customer Strategy Services [Member] \| Closure of Delivery Centers [Member]
Restructuring Cost and Reserve [Line Items]
Facility exit charges	$ 0	$ 0	$ 0	$ 0

The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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