Segment Information, Geographic and Product Data (Details 3) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Geographic Data
Net sales	$ 558.0	$ 570.6	$ 548.4	$ 549.8	$ 604.6	$ 566.3	$ 503.5	$ 498.6	$ 2,226.7	$ 2,173.0	$ 2,271.7
Long-lived assets	1,397.0				1,407.0				1,397.0	1,407.0
United States
Geographic Data
Net sales									1,579.9	1,537.9	1,575.3
Long-lived assets	1,367.0				1,379.5				1,367.0	1,379.5
Europe
Geographic Data
Net sales									359.6	349.5	382.1
Long-lived assets	4.5				6.1				4.5	6.1
Asia Pacific
Geographic Data
Net sales									141.8	137.1	153.6
Long-lived assets	18.1				11.6				18.1	11.6
Canada
Geographic Data
Net sales									61.2	65.3	59.8
Long-lived assets	6.5				8.4				6.5	8.4
Mexico
Geographic Data
Net sales									59.2	59.2	66.6
Long-lived assets	$ 0.9				$ 1.4				0.9	1.4
Other
Geographic Data
Net sales									$ 25.0	$ 24.0	$ 34.3