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Goodwill | 12 Months Ended
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Dec. 31, 2011
Goodwill | 4. Goodwill Changes in the carrying amount of goodwill attributable to each reporting unit with goodwill balances during the years ended December 31, 2011 and 2010, were as follows (in thousands):
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | Americas |  |  | EMEA |  |  | Asia/Pacific |  |  | Total |
Gross Balance prior to December 31, 2009 |  | $ | 187,241 |  |  | $ | 46,846 |  |  | $ | 18,195 |  |  | $ | 252,282 |
Total impairment prior to December 31, 2009 |  |  | (47,432 | ) |  |  | — |  |  |  | — |  |  |  | (47,432 | )
Balance, December 31 2009 |  |  | 139,809 |  |  |  | 46,846 |  |  |  | 18,195 |  |  |  | 204,850 |
Foreign currency translation adjustments |  |  | 121 |  |  |  | (2,596 | ) |  |  | 1,560 |  |  |  | (915 | )
Balance, December 31 2010 |  | $ | 139,930 |  |  | $ | 44,250 |  |  | $ | 19,755 |  |  | $ | 203,935 |
Foreign currency translation adjustments |  |  | (144 | ) |  |  | (638 | ) |  |  | (389 | ) |  |  | (1,171 | )
Additions—acquisition of ISD (1) |  |  | 11,380 |  |  |  | — |  |  |  | — |  |  |  | 11,380 |
Balance, December 31, 2011 |  | $ | 151,166 |  |  | $ | 43,612 |  |  | $ | 19,366 |  |  | $ | 214,144 |
(1) | Addition relates to goodwill acquired during the acquisition of ISD. See Note 2, Acquisitions.

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- Definition The entire disclosure for goodwill. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration