Income Taxes (Summary of (Benefit)/Provision for Income Taxes from Continuing Operations) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Current Income Taxes
Federal	$ 0.1	$ (1.7)	$ 0.9	$ 1.4
State	2.1	2.7	5.6	4.5
Foreign	(0.4)		0.8	0.8
Total	1.8	1.0	7.3	6.7
Deferred Income Taxes
Federal	4.7	(15.7)	14.6	(14.7)
State	1.2	(5.2)	(1.0)	(6.4)
Foreign	0.1	1.5	0.7	1.0
Total	6.0	(19.4)	14.3	(20.1)
Total provision for income taxes	$ 7.8	$ (18.4)	$ 21.6	$ (13.4)