Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income from continuing operations before income taxes for the Company's domestic and foreign operations
Domestic	$ 198.0	$ 168.4	$ 64.9
Foreign	18.8	20.2	22.9
Income before income taxes	216.8	188.6	87.8
Provision (benefit) for income taxes from continuing operations
Federal, current	49.7	21.5	9.2
State, current	5.9	2.9	5.2
Foreign, current	5.3	5.8	6.7
Total current	60.9	30.2	21.1
Federal, deferred	7.8	32.5	(3.6)
State, deferred	2.5	4.1	(1.3)
Foreign, deferred	(0.9)	0.2	(0.1)
Total deferred	9.4	36.8	(5.0)
Total income tax expense	$ 70.3	$ 67.0	$ 16.1