SEGMENT INFORMATION (REVENUE GEOGRAPHY) (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
Revenues from External Customers by Geography [Line Items]
Revenue	$ 288,798	$ 293,636	$ 581,452	$ 574,615
United States
Revenues from External Customers by Geography [Line Items]
Revenue	111,857	94,184	222,433	178,813
Philippines
Revenues from External Customers by Geography [Line Items]
Revenue	83,336	85,519	162,002	169,026
Latin America
Revenues from External Customers by Geography [Line Items]
Revenue	46,259	53,066	94,155	108,664
Europe / Middle East / Africa
Revenues from External Customers by Geography [Line Items]
Revenue	33,085	44,013	71,450	83,771
Canada
Revenues from External Customers by Geography [Line Items]
Revenue	10,288	13,047	23,241	25,845
Asia Pacific
Revenues from External Customers by Geography [Line Items]
Revenue	$ 3,973	$ 3,807	$ 8,171	$ 8,496