Revenue - Summary of Revenues by End-use Markets (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
Aerospace and Defense
Disaggregation of Revenue [Line Items]
Consolidated net sales	348.7	299.0	702.0	609.7
Medical
Disaggregation of Revenue [Line Items]
Consolidated net sales	49.0	45.5	98.0	92.5
Transportation
Disaggregation of Revenue [Line Items]
Consolidated net sales	38.4	37.8	78.4	78.1
Energy
Disaggregation of Revenue [Line Items]
Consolidated net sales	31.2	42.8	70.5	87.1
Industrial and Consumer
Disaggregation of Revenue [Line Items]
Consolidated net sales	78.0	97.5	151.3	193.6
Distribution
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 27.7	$ 33.9	$ 58.2	$ 67.9