Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Other Income and Expenses [Abstract]
Foreign exchange	$ (0.2)	$ (0.8)	$ (0.2)	$ (2.0)
Unrealized gains (losses) on company-owned life insurance contracts and investments held in rabbi trusts	0.3	0.7	0.8	(0.6)
Equity in earnings of unconsolidated subsidiaries	0.0	0.3	0.0	0.6
Other	0.2	0.1	0.4	0.1
Total other income (expense), net	$ 0.3	$ 0.3	$ 1.0	$ (1.9)