Revenue - Summary of Revenue by Geography (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 573.0	$ 556.5	$ 1,158.4	$ 1,128.9
United States
Disaggregation of Revenue [Line Items]
Consolidated net sales	370.9	385.3	755.8	769.3
Europe
Disaggregation of Revenue [Line Items]
Consolidated net sales	93.8	83.2	195.2	173.2
Asia Pacific
Disaggregation of Revenue [Line Items]
Consolidated net sales	67.8	43.7	121.1	92.3
Mexico
Disaggregation of Revenue [Line Items]
Consolidated net sales	15.6	20.4	37.5	42.7
Canada
Disaggregation of Revenue [Line Items]
Consolidated net sales	16.0	14.9	29.4	32.6
Other
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 8.9	$ 9.0	$ 19.4	$ 18.8