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Restructuring and Related Charges and Asset Impairment Charges - Restructuring and Related Charges Narrative (Details) - USD ($) | 12 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Tangible Asset Impairment Charges |  | $ 5,400,000 |
Restructuring and Related Cost, Incurred Cost | $ 76,200,000 | 53,500,000 | $ 58,100,000
Restructuring Charges | 65,606,000 | 30,015,000 | 42,100,000
Restructuring Charges Related to Inventory Disposals | 600,000 |  | 1,500,000
Assets held for sale (Note 15) | 6,980,000 | 0 |
Restructuring Reserve, Current | 27,294,000 | 15,703,000 | 20,788,000
Restructuring Reserve, Noncurrent | 2,500,000 |  |
Industrial [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring Charges | 39,613,000 | 16,154,000 |
WIDIA [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring Charges | 6,361,000 | 1,795,000 |
Infrastructure [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring Charges | 19,632,000 | 12,066,000 |
Ongoing Restructuring [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Cost Incurred to Date | 147,700,000 |  |
Ongoing Restructuring [Member] | Minimum [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 165,000,000 |  |
Ongoing Restructuring [Member] | Maximum [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 195,000,000 |  |
Ongoing Restructuring [Member] | Industrial [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 0.60 |  |
Restructuring and Related Cost, Cost Incurred to Date | 80,500,000 |  |
Ongoing Restructuring [Member] | WIDIA [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 0.05 |  |
Restructuring and Related Cost, Cost Incurred to Date | 12,900,000 |  |
Ongoing Restructuring [Member] | Infrastructure [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 0.30 |  |
Restructuring and Related Cost, Cost Incurred to Date | 47,000,000 |  |
Ongoing Restructuring [Member] | Corporate Segment [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Cost | 0.05 |  |
Restructuring and Related Cost, Cost Incurred to Date | 7,300,000 |  |
Cost of Sales [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring Related Charges | 7,100,000 | 7,300,000 | 8,200,000
Operating Expense [Member] |  |  |
Restructuring and Related Costs and Reserve [Line Items] |  |  |
Restructuring Related Charges | $ 3,500,000 | $ 16,200,000 | $ 7,800,000

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- Definition Amount of assets held-for-sale that are not part of a disposal group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 15 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6390208&loc=d3e400-110220 + Details
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