Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Other Income and Expenses [Abstract]
Foreign exchange	$ (0.8)	$ (0.3)	$ (2.0)	$ 0.3
Unrealized gains (losses) on company-owned life insurance contracts and investments held in rabbi trusts	0.7	0.8	(0.6)	0.5
Equity in earnings (losses) of unconsolidated subsidiaries	0.3	(0.5)	0.6	(0.4)
Legal settlement	0.0	0.0	0.0	4.4
Other	0.1	0.0	0.1	0.0
Total other income (expense), net	$ 0.3	$ 0.0	$ (1.9)	$ 4.8