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Acquisitions (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 6 Months Ended
Dec. 31, 2011
entities
Business Acquisition [Line Items]  
Number of entities acquired 3
Total purchase consideration $ 168.5
Business acquisition, goodwill 125.7
Business acquisition, intangible assets 38.9
Revenue from acquired entities $ 31.0
Pangia [Member]
  
Business Acquisition [Line Items]  
Date of acquisition July 1, 2011
Paradigm [Member]
  
Business Acquisition [Line Items]  
Date of acquisition September 1, 2011
APG [Member]
  
Business Acquisition [Line Items]  
Date of acquisition October 3, 2011