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Goodwill | 9 Months Ended
--- | ---
Sep. 30, 2011
Goodwill |
Goodwill |
4. Goodwill The change in the carrying amount of goodwill for the nine months ended September 30, 2011 is as follows (in millions):
Balance as of December 31, 2010 |  | $ | 1,109.6 |
Acquisition |  | 126.3 |
Purchase price allocation adjustments |  | 0.2 |
Effect of foreign currency translation |  | (4.5 | )
Balance as of September 30, 2011 |  | $ | 1,231.6 |
The Company had no accumulated impairment losses related to goodwill as of September 30, 2011.

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