Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income from continuing operations before income taxes for the Company's domestic and foreign operations
Domestic	$ 168.4	$ 64.9	$ (7.4)
Foreign	20.2	22.9	12.1
Income before income taxes	188.6	87.8	4.7
Provision (benefit) for income taxes from continuing operations
Federal, current	21.5	9.2
State, current	2.9	5.2	0.7
Foreign, current	5.8	6.7	2.8
Total current	30.2	21.1	3.5
Federal, deferred	32.5	(3.6)	2.2
State, deferred	4.1	(1.3)	(4.1)
Foreign, deferred	0.2	(0.1)	1.0
Total deferred	36.8	(5.0)	(0.9)
Total income tax expense	$ 67.0	$ 16.1	$ 2.6