Revenue - Summary of Revenues by End-use Markets (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
Aerospace and defense
Disaggregation of Revenue [Line Items]
Consolidated net sales	342.1	323.7	951.9	847.2
Medical
Disaggregation of Revenue [Line Items]
Consolidated net sales	55.1	45.1	147.6	126.1
Energy
Disaggregation of Revenue [Line Items]
Consolidated net sales	49.0	36.5	136.1	100.3
Transportation
Disaggregation of Revenue [Line Items]
Consolidated net sales	39.9	41.6	118.0	114.0
Industrial and consumer
Disaggregation of Revenue [Line Items]
Consolidated net sales	87.4	90.1	280.9	257.6
Distribution
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 36.4	$ 35.2	$ 104.3	$ 94.5