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Acquisitions (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Mar. 31, 2013
entity
Business Acquisition [Line Items]  
Number of entities acquired 3
Total purchase consideration $ 106.3
Business acquisition, goodwill 71.5
Business acquisition, intangible assets 19.9
Revenue from acquired entities $ 55.8
IDL Solutions, Inc. (IDL) [Member]
 
Business Acquisition [Line Items]  
Date of acquisition Dec. 31, 2012
Emergint Technologies, Inc. (Emergint) [Member]
 
Business Acquisition [Line Items]  
Date of acquisition Nov. 30, 2012
Delta Solutions And Technologies, Inc. (Delta) [Member]
 
Business Acquisition [Line Items]  
Date of acquisition Jul. 02, 2012
Customer Contracts [Member]
 
Business Acquisition [Line Items]  
Intangible asset amortization period 15 years