Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income from continuing operations before income taxes for the Company's domestic and foreign operations
Domestic	$ 178.6	$ 198.0	$ 168.4
Foreign	17.8	18.8	20.2
Income before income taxes	196.4	216.8	188.6
Provision (benefit) for income taxes from continuing operations
Federal, current	61.3	49.7	21.5
State, current	6.5	5.9	2.9
Foreign, current	5.5	5.3	5.8
Total current	73.3	60.9	30.2
Federal, deferred	(8.0)	7.8	32.5
State, deferred	(1.4)	2.5	4.1
Foreign, deferred	(0.3)	(0.9)	0.2
Total deferred	(9.7)	9.4	36.8
Total income tax expense	$ 63.6	$ 70.3	$ 67.0