Segment Information, Geographic and Product Data - Schedule of Net Sales by Geographic Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Geographic Data
Net sales	$ 507.7	$ 473.6	$ 427.4	$ 389.0	$ 457.7	$ 456.3	$ 443.8	$ 455.6	$ 1,797.6	$ 1,813.4	$ 2,226.7
United States
Geographic Data
Net sales									1,198.3	1,243.5	1,579.9
Europe
Geographic Data
Net sales									349.6	321.4	359.6
Asia Pacific
Geographic Data
Net sales									127.2	129.5	141.8
Canada
Geographic Data
Net sales									47.7	44.9	61.2
Mexico
Geographic Data
Net sales									48.5	46.7	59.2
Other
Geographic Data
Net sales									$ 26.3	$ 27.4	$ 25.0