Segment Information, Geographic and Product Data (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Geographic Data
Net sales	$ 604.6	$ 566.3	$ 503.5	$ 498.6	$ 611.8	$ 581.4	$ 533.5	$ 544.9	$ 2,173.0	$ 2,271.7	$ 2,028.7
Long-lived assets	1,407.0				1,168.4				1,407.0	1,168.4
United States
Geographic Data
Net sales									1,537.9	1,575.3	1,364.2
Long-lived assets	1,379.5				1,142.5				1,379.5	1,142.5
Asia Pacific
Geographic Data
Net sales									137.1	153.6	142.1
Long-lived assets	11.6				9.1				11.6	9.1
Europe
Geographic Data
Net sales									349.5	382.1	375.9
Long-lived assets	6.1				6.1				6.1	6.1
Mexico
Geographic Data
Net sales									59.2	66.6	68.8
Long-lived assets	1.4				1.6				1.4	1.6
Canada
Geographic Data
Net sales									65.3	59.8	52.1
Long-lived assets	8.4				9.1				8.4	9.1
Other
Geographic Data
Net sales									$ 24.0	$ 34.3	$ 25.6