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Goodwill (Tables) | 6 Months Ended
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Jun. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | Changes in the carrying amount of goodwill during the six months ended June 30, 2013, were as follows (in thousands):
|  | Americas |  |  | EMEA |  |  | Asia/Pacific |  |  | Total |
Gross Balance prior to December 31, 2012 |  | $ | 316,222 |  |  | $ | 158,653 |  |  | $ | 73,698 |  |  | $ | 548,573 |
Total impairment prior to December 31, 2012 |  |  | (47,432 | ) |  |  | — |  |  |  | — |  |  |  | (47,432 | )
Balance as of December 31, 2012 |  |  | 268,790 |  |  |  | 158,653 |  |  |  | 73,698 |  |  |  | 501,141 |
Goodwill from acquisitions (1) |  |  | 131,293 |  |  |  | — |  |  |  | — |  |  |  | 131,293 |
Foreign currency translation adjustments |  |  | (572 | ) |  |  | (1,347 | ) |  |  | (4,525 | ) |  |  | (6,444 | )
Balance as of June 30, 2013 |  | $ | 399,511 |  |  | $ | 157,306 |  |  | $ | 69,173 |  |  | $ | 625,990 |
(1) | Addition relates to the goodwill acquired in the acquisition of ORCC and PTESA as discussed in Note 2. The purchase price allocations for ORCC and PTESA are preliminary as of June 30, 2013 and accordingly are subject to future changes during the maximum one-year allocation period.

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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