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GOODWILL AND OTHER INTANGIBLE ASSETS (GOODWILL ROLLFORWARD) (DETAILS) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Goodwill [Line Items]  
Beginning balance, goodwill $ 94,679
Acquisitions 478
Impairments 0
Deconsolidation of subsidiary 1,274
Effect of Foreign Currency (306)
Ending balance, goodwill 93,577
Customer Management Services [Member]
 
Goodwill [Line Items]  
Beginning balance, goodwill 20,288
Acquisitions 0
Impairments 0
Deconsolidation of subsidiary 0
Effect of Foreign Currency (306)
Ending balance, goodwill 19,982
Customer Growth Services [Member]
 
Goodwill [Line Items]  
Beginning balance, goodwill 24,439
Acquisitions 0
Impairments 0
Deconsolidation of subsidiary 0
Effect of Foreign Currency 0
Ending balance, goodwill 24,439
Customer Technology Services [Member]
 
Goodwill [Line Items]  
Beginning balance, goodwill 38,591
Acquisitions 478
Impairments 0
Deconsolidation of subsidiary 0
Effect of Foreign Currency 0
Ending balance, goodwill 39,069
Customer Strategy Services [Member]
 
Goodwill [Line Items]  
Beginning balance, goodwill 11,361
Acquisitions 0
Impairments 0
Deconsolidation of subsidiary 1,274
Effect of Foreign Currency 0
Ending balance, goodwill $ 10,087