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Acquisitions (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Dec. 31, 2011
business
Dec. 31, 2012
Acquisitions [Abstract]    
Number of businesses acquired 5  
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 11 years  
Business Acquisition, Purchase Price Allocation, Goodwill Amount $ 149.5  
Acquired Finite-lived Intangible Asset, Amount 71.3  
Purchase price for acquisitions, net of cash acquired 229.1  
Contingent payments relating to previously consummated acquisitions   $ 0.5