Acquisitions (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Mar. 31, 2012
Business Acquisition [Line Items]
Number of entities acquired	4
Total purchase consideration	$ 187
Business acquisition, goodwill	139
Business acquisition, intangible assets	42
Revenue from acquired entities	$ 58.6
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
TCL [Member]
Business Acquisition [Line Items]
Date of acquisition	February 1, 2012