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Goodwill (Details) - Jun. 30, 2015 - Entity [Domain] - USD ($)
$ in Millions
Total
Change in the carrying amount of goodwill  
Balance at the beginning of the period $ 1,736.4
Acquisition 0.3
Purchase price allocation adjustment (0.4)
Effect of foreign currency translation (3.9)
Balance at the end of the period 1,732.4
Accumulated impairment losses $ 0.0