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SEGMENT INFORMATION (REVENUE GEOGRAPHY) (DETAILS) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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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

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- Definition Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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