Revenue - Summary of Revenue by End-use Markets (Details) - USD ($) $ in Millions	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 572.4	$ 479.8
Aerospace and defense
Disaggregation of Revenue [Line Items]
Consolidated net sales	310.7	258.6
Energy
Disaggregation of Revenue [Line Items]
Consolidated net sales	44.3	32.0
Transportation
Disaggregation of Revenue [Line Items]
Consolidated net sales	40.3	36.7
Medical
Disaggregation of Revenue [Line Items]
Consolidated net sales	47.0	38.3
Industrial and consumer
Disaggregation of Revenue [Line Items]
Consolidated net sales	96.1	84.4
Distribution
Disaggregation of Revenue [Line Items]
Consolidated net sales	$ 34.0	$ 29.8

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration