Revenue - Summary of Revenue by Geography (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 609.9	$ 572.2	$ 1,738.8	$ 1,539.7
United States
Disaggregation of Revenue [Line Items]
Consolidated net sales	414.1	374.7	1,183.3	1,021.6
Europe
Disaggregation of Revenue [Line Items]
Consolidated net sales	97.7	108.4	270.9	277.8
Asia Pacific
Disaggregation of Revenue [Line Items]
Consolidated net sales	47.1	45.3	139.4	123.9
Mexico
Disaggregation of Revenue [Line Items]
Consolidated net sales	22.7	17.3	65.4	40.6
Canada
Disaggregation of Revenue [Line Items]
Consolidated net sales	17.5	17.3	50.2	47.4
Other
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 10.8	$ 9.2	$ 29.6	$ 28.4