Revenue - Summary of revenues by end-use markets (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 353.3	$ 585.4
Aerospace and Defense
Disaggregation of Revenue [Line Items]
Consolidated net sales	172.0	353.3
Medical
Disaggregation of Revenue [Line Items]
Consolidated net sales	32.8	48.9
Transportation
Disaggregation of Revenue [Line Items]
Consolidated net sales	29.1	40.0
Energy
Disaggregation of Revenue [Line Items]
Consolidated net sales	25.1	39.3
Industrial and Consumer
Disaggregation of Revenue [Line Items]
Consolidated net sales	73.4	73.3
Distribution
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 20.9	$ 30.6

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details