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Selected Segment Financial Data, Revenues and Operating Income (Loss) (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Segment Reporting Information [Line Items] |  |
Revenues | $ 137,625 | $ 104,543
Operating income (loss) | (1,613) | 7,498
Americas |  |
Segment Reporting Information [Line Items] |  |
Revenues | 74,181 | 52,330
Operating income (loss) | 20,163 | 11,516
EMEA |  |
Segment Reporting Information [Line Items] |  |
Revenues | 44,792 | 42,141
Operating income (loss) | 12,004 | 11,452
Asia /Pacific |  |
Segment Reporting Information [Line Items] |  |
Revenues | 18,652 | 10,072
Operating income (loss) | 4,226 | (582)
Corporate |  |
Segment Reporting Information [Line Items] |  |
Operating income (loss) | $ (38,006) | $ (14,888)

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales 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) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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