Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2009
Goodwill [Line Items]
Goodwill increase	$ 140.7
Goodwill attributable to acquisitions		142.2	0.9
Goodwill foreign currency translation adjustment		(2.4)
Goodwill tax deductible	520.5
Domestic [Member]
Goodwill [Line Items]
Goodwill increase	125.7
International [Member]
Goodwill [Line Items]
Goodwill increase		15.0
2012 Acquisitions [Member]
Goodwill [Line Items]
Goodwill tax deductible	$ 88.3